HSBC HSBC Holdings PLC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2024

Commission File Number: 001-14930

HSBC Holdings plc

8 Canada Square, London E14 5HQ, England

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F).

Form 20-F ☒    Form 40-F ☐

This Report on Form 6-K is hereby incorporated by reference in the following HSBC Holdings plc registration statement: file number 333-277306

HSBC Holdings plc (the “Registrant”) hereby incorporates by reference the following exhibits to this report on Form 6-K into its registration statement: file number 333-277306.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 4.1

HSBC HOLDINGS PLC,

as Issuer

THE BANK OF NEW YORK MELLON, LONDON BRANCH,

as Trustee

HSBC BANK USA, NATIONAL ASSOCIATION,

as Paying Agent and Registrar

EIGHTH SUPPLEMENTAL INDENTURE

Dated as of November 18, 2024

To the Dated Subordinated Debt Securities Indenture, dated as of March 12, 2014,

among the Issuer, the Trustee and the Paying Agent and Registrar

TABLE OF CONTENTS

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EIGHTH SUPPLEMENTAL INDENTURE, dated as of November 18, 2024 (this “Supplemental Indenture”), by and among HSBC Holdings plc, a public limited company duly organized and existing under the laws of England and Wales (the “Company”), having its principal office at 8 Canada Square, London E14 5HQ, England, The Bank of New York Mellon, London Branch, a New York banking corporation, as trustee (the “Trustee”), having its principal corporate trust office at 160 Queen Victoria Street, London, EC4V 4LA, United Kingdom, and HSBC Bank USA, National Association, as Paying Agent and Registrar (the “Agent”), having its principal office at 66 Hudson Boulevard East, 545W9, New York, New York, 10001.

WITNESSETH:

WHEREAS, the Company, the Trustee and the Agent have executed and delivered an indenture dated as of March 12, 2014 (as amended and supplemented from time to time, the “Base Indenture” and together with this Supplemental Indenture, the “Indenture”), to provide for the issuance of the Company’s Debt Securities;

WHEREAS, Section 9.01(4) of the Base Indenture provides that the Company and the Trustee may, without the consent of Holders, enter into a supplemental indenture to change or eliminate any of the provisions of the Base Indenture that shall be effective only with respect to any series of Debt Securities created subsequent to the execution of such supplemental indenture;

WHEREAS, the Company and the Trustee desire to change certain provisions of the Base Indenture with respect to any series of Debt Securities created subsequent to the execution of this Supplemental Indenture;

WHEREAS, all conditions and requirements necessary to make this Supplemental Indenture a valid and binding instrument in accordance with the terms of the Base Indenture have been performed and fulfilled and the execution and delivery hereof have been in all respects duly authorized;

NOW, THEREFORE, each party agrees as follows for the benefit of the other parties and the equal and ratable benefit of the Holders.

ARTICLE I

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 1.01. Definitions.

Except as otherwise expressly provided herein or unless the context otherwise requires, all terms used in this Supplemental Indenture that are defined in the Base Indenture shall have the meanings ascribed to them in the Base Indenture.

SECTION 1.02. Effect of Headings.

The Article and Section headings herein are for convenience only and shall not affect the construction hereof.

SECTION 1.03. Separability Clause.

In case any provision in this Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 1.04. Benefits of Instrument.

Except as otherwise provided herein, nothing in this Supplemental Indenture, express or implied, shall give to any person, other than the parties hereto and their successors hereunder and the Holders, any benefit or any legal or equitable right, remedy or claim under the Indenture.

SECTION 1.05. Relation to Base Indenture.

This Supplemental Indenture constitutes an integral part of the Base Indenture. The provisions set forth in Article II of this Supplemental Indenture apply to all series of Debt Securities authenticated, delivered and issued on or after the date of this Supplemental Indenture.

SECTION 1.06. Construction and Interpretation.

Unless the context expressly otherwise requires:

(a) the words “hereof,” “herein” and “hereunder” and words of similar import, when used in this Supplemental Indenture, refer to this Supplemental Indenture as a whole and not to any particular provision of this Supplemental Indenture;

(b) the terms defined in the singular have a comparable meaning when used in the plural, and vice versa;

(c) references herein to a specific Section or Article refer to Sections or Articles of this Supplemental Indenture, unless otherwise specified;

(d) wherever the words “include,” “includes” or “including” are used in this Supplemental Indenture, they shall be deemed to be followed by the words “without limitation”;

(e) references to a Person are also to its successors and permitted assigns; and

(f) the use of “or” is not intended to be exclusive unless expressly indicated otherwise.

ARTICLE II

AMENDMENTS TO THE BASE INDENTURE APPLICABLE TO ALL SERIES OF

SECURITIES ISSUED ON OR AFTER THE DATE OF THIS SUPPLEMENTAL INDENTURE

SECTION 2.01. Definitions.

Article One of the Base Indenture is hereby amended by adding the following definitions to Section 1.01, which shall read as follows:

“Additional Amounts” has the meaning specified in Section 10.04(a);

“Amounts Due” means the principal amount of, and any accrued but unpaid interest, including any Additional Amounts, on, the Debt Securities. References to such amounts will include amounts that have become due and payable, but which have not been paid, prior to the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority;

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“Applicable Law” has the meaning specified in Section 10.04(d);

“Applicable Rules” means, at any time, the laws, regulations, requirements, guidelines and policies relating to capital adequacy (including, without limitation, as to leverage) then in effect in the United Kingdom including, without limitation to the generality of the foregoing, the UK CRR, the Banking Act and any regulations, requirements, guidelines and policies relating to capital adequacy adopted by the Relevant Regulator from time to time (whether or not such requirements, guidelines or policies are applied generally or specifically to the Company or to the Company and any of its holding or subsidiary companies or any subsidiary of any such holding company), in each case as amended, supplemented or replaced from time to time;

“Banking Act” means the United Kingdom Banking Act 2009, as amended;

“Code” means the U.S. Internal Revenue Code of 1986, as amended;

“FATCA” means (i) sections 1471 to 1474 of the Code or any associated regulations or other official guidance; (ii) any treaty, law, regulation or other official guidance enacted in any other jurisdiction, or relating to an intergovernmental agreement between the United States and any other jurisdiction, which (in either case) facilitates the implementation of clause (i); or (iii) any agreement pursuant to the implementation of clauses (i) or (ii) with the U.S. Internal Revenue Service, the U.S. government or any governmental or taxation authority in any other jurisdiction;

“FATCA Withholding Tax” has the meaning specified in Section 10.04(c);

“Relevant Regulator” means the United Kingdom Prudential Regulation Authority or any successor entity or other entity primarily responsible for the prudential supervision of the Company;

“Relevant UK Resolution Authority” means any authority with the ability to exercise a UK Bail-in Power;

“Tax Event Redemption” has the meaning set forth in Section 11.08;

“UK Bail-in Legislation” means Part I of the Banking Act and any other law or regulation applicable in the UK relating to the resolution of unsound or failing banks, investment firms or other financial institutions or their affiliates (otherwise than through liquidation, administration or other insolvency proceedings);

“UK Bail-in Power” means the powers under the UK Bail-in Legislation to cancel, transfer or dilute shares issued by a person that is a bank or investment firm or affiliate of a bank or investment firm, to cancel, write-down, transfer, reduce, modify or change the form of a liability of such a person or any contract or instrument under which that liability arises, to convert all or part of that liability into shares, securities or obligations of that person or any other person, to provide that any such contract or instrument is to have effect as if a right had been exercised under it or to suspend any obligation in respect of that liability; and

“UK CRR” means Regulation (EU) No. 575/2013 on prudential requirements for credit institutions and investment firms of the European Parliament and of the Council of 26 June 2013, as amended or supplemented, as it forms part of domestic law in the United Kingdom by virtue of the European Union (Withdrawal) Act 2018, as amended.

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SECTION 2.02. Execution, Authentication, Delivery and Dating.

Article Three of the Base Indenture is hereby amended by adding Section 3.03(g), which shall read as follows:

(g) The words “execution,” “executed,” “signed,” “signature,” and words of like import in this Indenture, the Debt Securities or in any other certificate, agreement or document related to this Indenture or the offering and sale of the Debt Securities shall include images of manually executed signatures transmitted by facsimile or other electronic format (including, without limitation, “pdf”, “tif” or “jpg”) and other electronic signatures (including, without limitation, DocuSign and AdobeSign or any other electronic process or digital signature provider as specified in writing to the Trustee and agreed to by the Trustee in its sole discretion ). The use of electronic signatures and electronic records (including, without limitation, any contract or other record created, generated, sent, communicated, received, or stored by electronic means) shall be of the same legal effect, validity and enforceability as a manually executed signature or use of a paper-based record-keeping system to the fullest extent permitted by applicable law, including the Federal Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act. Each party agrees that this Indenture, the Debt Securities and any other documents to be delivered in connection herewith may be electronically or digitally signed using DocuSign (or any other electronic process or digital signature provider as specified in writing to the Trustee and agreed to by the Trustee in its sole discretion), and that any such electronic or digital signatures appearing on this Indenture, the Debt Securities or such other documents are the same as manual signatures for the purposes of validity, enforceability and admissibility. The Company agrees to assume all risks arising out of the use of electronic or digital signatures and electronic methods to submit any communications to Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk of interception and misuse by third parties.

SECTION 2.03. Events of Default and Defaults.

(a) Article Five of the Base Indenture is hereby amended by amending and restating Section 5.01 in its entirety, which shall read as follows:

Section 5.01. Events of Default.

(a) Unless otherwise specified pursuant to Section 3.01, an “Event of Default” with respect to Debt Securities of any series means any one of the following events:

(i) an order is made by an English court which is not successfully appealed within 30 days after the date such order was made for winding up of the Company other than in connection with a scheme of amalgamation or reconstruction not involving bankruptcy or insolvency; or

(ii) an effective resolution is validly adopted by the Company’s shareholders for winding up of the Company other than in connection with a scheme of amalgamation or reconstruction not involving bankruptcy or insolvency.

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(b) Article Five of the Base Indenture is hereby further amended by amending and restating Section 5.03 in its entirety, which shall read as follows:

Section 5.03. Defaults; Collection of Indebtedness and Suits for Enforcement by Trustee.

(a) Unless otherwise specified pursuant to Section 3.01, a “Default” with respect to Debt Securities of any series means any one of the following events:

(i) failure to pay principal or premium, if any, on any Debt Securities of such series at maturity, and such default continues for a period of 30 days; or

(ii) failure to pay any interest on any Debt Securities of such series when due and payable, which failure continues for 30 days.

(b) If a Default occurs, the Trustee may institute proceedings in England (but not elsewhere) for the Company’s winding-up; provided that the Trustee may not, upon the occurrence of a Default, accelerate the maturity of any Debt Securities of any series then Outstanding, unless an Event of Default has occurred and is continuing.

(c) Notwithstanding the foregoing, failure to make any payment in respect of any Debt Securities of a series shall not be a Default in respect of the Debt Securities of such series if such payment is withheld or refused:

(i) in order to comply with any fiscal or other law or regulation or with the order of any court of competent jurisdiction, in each case applicable to such payment; or

(ii) in case of doubt as to the validity or applicability of any such law, regulation or order, in accordance with advice given as to such validity or applicability at any time during the said grace period of 30 days by independent legal advisers acceptable to the Trustee;

provided, however, that the Trustee may, by notice to the Company, require the Company to take such action (including but not limited to proceedings for a declaration by a court of competent jurisdiction) as the Trustee may be advised in an opinion of counsel, upon which opinion the Trustee may conclusively rely, is appropriate and reasonable in the circumstances to resolve such doubt, in which case the Company shall forthwith take and expeditiously proceed with such action and shall be bound by any final resolution of the doubt resulting therefrom. If any such resolution determines that the relevant payment can be made without violating any applicable law, regulation or order then the preceding sentence shall cease to have effect and the payment shall become due and payable on the expiration of the relevant grace period of 30 days after the Trustee gives written notice to the Company informing the Company of such resolution.

(d) Agreements with Respect to the Events of Default and Defaults.

By its acquisition of Debt Securities of any series, each Holder (which, for these purposes, includes each beneficial owner), to the extent permitted by the Trust Indenture Act, waives any and all claims, in law and/or in equity, against the Trustee for, agrees not to initiate a suit against the Trustee in respect of, and agrees that the Trustee will not be liable for, any action that the Trustee takes, or abstains from taking, in either case in accordance with the exercise of the limited remedies available under the Indenture and the Debt Securities of such series for a non-payment of principal and/or interest on the Debt Securities of such series.

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SECTION 2.04. Assumption of Obligations.

Article Eight of the Base Indenture is hereby amended by amending and restating Section 8.03 in its entirety, which shall read as follows:

Section 8.03. Assumption of Obligations. Subject to applicable law and regulation (including, if and to the extent required by the Applicable Rules at such time, obtaining any required permission of the Relevant Regulator), with respect to the Debt Securities of any series, a holding company of the Company or any subsidiary of the Company (a “successor entity”) may assume the obligations of the Company (or any corporation which shall have previously assumed the obligations of the Company) for the due and punctual payment of the principal of (and premium, if any, on), or interest on and any additional amount required to be paid in accordance with the provisions of the Indenture or the Debt Securities in respect of the Debt Securities and the performance of each covenant of the Indenture and the Debt Securities on the part of the Company to be performed or observed provided, that

(1) the successor entity shall expressly assume such obligations by an amendment to the Indenture, executed by the Company and such successor entity, if applicable, and delivered to the Trustee, in form satisfactory to the Trustee, and the Company shall, by amendment to the Indenture, unconditionally guarantee all of the obligations of such successor entity under the Debt Securities of such series and the Indenture as so modified by such amendment (provided, however, that, for the purposes of the Company’s obligation to pay to Holders all Additional Amounts, if any, payable pursuant to Section 10.04 in respect of the Debt Securities and any related Coupons, references to such successor entity’s country of organization will be added to references to the United Kingdom);

(2) such successor entity shall confirm in such amendment to the Indenture that such successor entity will pay to the Holders all Additional Amounts, if any, payable pursuant to Section 10.04 in respect of all the Debt Securities and any related Coupons (provided, however, that for these purposes such successor entity’s country of organization will be substituted for the references to the United Kingdom); and

(3) immediately after giving effect to such assumption of obligations, no Event of Default or Default and no event which, after notice or lapse of time or both, would become an Event of Default or Default, shall have occurred and be continuing.

Upon any such assumption, the successor entity shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture with respect to any such Debt Securities with the same effect as if such successor entity had been named as the Company in this Indenture, and the Company or any legal and valid successor corporation which shall theretofore have become such in the manner prescribed herein, shall be released from all liability as obligor upon any such Debt Securities except as provided in Clause (1) above.

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SECTION 2.05. Supplemental Indentures Without Consent of Holders.

Article Nine of the Base Indenture is hereby amended by amending and restating Section 9.01 in its entirety, which shall read as follows:

Section 9.01. Supplemental Indentures Without Consent of Holders. Without the consent of any Holders of Debt Securities or Coupons, the Company, when authorized by or pursuant to a Board Resolution, and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of the following purposes:

(1) to evidence the succession of another Person to the Company and the assumption by such successor Person of the covenants of the Company herein and in the Debt Securities contained; or

(2) to add to the covenants of the Company for the benefit of the Holders of all or any series of Debt Securities or Coupons (and, if such covenants are to be for the benefit of less than all series of Debt Securities or Coupons, stating that such covenants are expressly being included solely for the benefit of such series) or to surrender any right or power herein conferred upon the Company; or

(3) to change or eliminate any restrictions on the payment of any principal of (or premium, if any, on) or interest on Bearer Securities, to permit Bearer Securities to be issued in exchange for Registered Securities or to permit or facilitate the issuance of Debt Securities in uncertificated or book-entry form; provided that no such action shall adversely affect the interests of the Holders of Debt Securities of any series or any related Coupons in any material respect; or

(4) to change or eliminate any of the provisions of this Indenture; provided that any such change or elimination shall be effective only with respect to any series of Debt Securities created subsequent to the execution of such supplemental indenture; or

(5) to establish the form or terms of Debt Securities of any series and any related Coupons as permitted by Section 2.01 and Section 3.01; or

(6) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Debt Securities of one or more series and to add to, change or eliminate any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, pursuant to the requirements of Section 6.11; or

(7) to secure the Debt Securities; or

(8) to cure any ambiguity, to correct or supplement any provision herein which may be defective or inconsistent with any other provision herein, or to make any other provision with respect to matters or questions arising under this Indenture that shall not be inconsistent with any provision of this Indenture; provided that such action shall not adversely affect the interests of the Holders of Debt Securities of any series or any related Coupons in any material respect; or

(9) to add, to change or to eliminate any provision of this Indenture as shall be necessary or desirable in accordance with any amendment to the Trust Indenture Act; or

(10) to make any other provisions with respect to matters or questions arising under this Indenture, provided such action shall not adversely affect the interests of the Holders of any series in any material respect.

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SECTION 2.06. Additional Amounts.

Article Ten of the Base Indenture is hereby amended by amending and restating Section 10.04 in its entirety, which shall read as follows:

Section 10.04. Payment of Additional Amounts.

(a) Unless otherwise specified as contemplated by Section 3.01, all payments made under or with respect to Debt Securities shall be paid by the Company, without deduction or withholding for, or on account of, any and all present and future taxes, levies, imposts, duties, charges, fees, deductions or withholdings whatsoever imposed, levied, collected, withheld or assessed by or on behalf of the United Kingdom or any political subdivision or taxing authority thereof or therein having the power to tax (each, a “Taxing Jurisdiction”), unless required by law. If such deduction or withholding shall at any time be required by the law of the Taxing Jurisdiction, the Company shall pay such additional amounts (“Additional Amounts”) in respect of any payments of interest only (and not principal) on such Debt Securities as may be necessary so that the net amounts (including Additional Amounts) paid to the Holders, after such deduction or withholding, shall be equal to the respective amounts of interest which the Holders would have been entitled to receive in respect of such Debt Securities in the absence of such deduction or withholding, provided that the foregoing shall not apply to any such tax, levy, impost, duty, charge, fee, deduction or withholding which:

(i) would not be payable or due but for the fact that the Holder or the beneficial owner of the Debt Security is domiciled in, or is a national or resident of, or engaging in business or maintaining a permanent establishment or being physically present in, the Taxing Jurisdiction, or otherwise has some connection or former connection with the Taxing Jurisdiction other than the holding or ownership of a Debt Security, or the collection of interest payments on, or the enforcement of, any Debt Security;

(ii) would not be payable or due but for the fact that the certificate representing the relevant Debt Securities (x) is presented for payment in the Taxing Jurisdiction or (y) is presented for payment more than 30 days after the date payment became due or was provided for, whichever is later, except to the extent that the Holder would have been entitled to such Additional Amount on presenting the same for payment at the close of such 30-day period;

(iii) would not have been imposed if presentation for payment of the certificate representing the relevant Debt Securities had been made to a paying agent other than the paying agent to which the presentation was made;

(iv) is imposed in respect of a Holder that is not the sole beneficial owner of the interest, or a portion of it, or that is a fiduciary or partnership, but only to the extent that a beneficiary or settlor with respect to the fiduciary, a beneficial owner or member of the partnership would not have been entitled to the payment of an Additional Amount had the beneficiary, settlor, beneficial owner or member received directly its beneficial or distributive share of the payment;

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(v) is imposed because of the failure to comply by the Holder or the beneficial owner of any payment on such Debt Securities with a request from the Company addressed to the Holder or the beneficial owner, including a written request from the Company related to a claim for relief under any applicable double tax treaty (x) to provide information concerning the nationality, residence, identity or connection with a taxing jurisdiction of the Holder or the beneficial owner or (y) to make any declaration or other similar claim to satisfy any information or reporting requirement, if the information or declaration is required or imposed by a statute, treaty, regulation, ruling or administrative practice of the Taxing Jurisdiction as a precondition to exemption from withholding or deduction of all or part of the tax, duty, assessment or other governmental charge;

(vi) is imposed in respect of any estate, inheritance, gift, sale, transfer, personal property, wealth or similar tax, duty, assessment or other governmental charge; or

(vii) is imposed in respect of any combination of the above items.

Whenever in this Indenture there is mentioned, in any context, the payment of interest, if any, on, or in respect of, any Debt Security of any series or the net proceeds received on the sale or exchange of any Debt Security of any series, such mention shall be deemed to include mention of the payment of Additional Amounts provided for in this Section to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof pursuant to the provisions of this Section and as if express mention of the payment of Additional Amounts (if applicable) were made in any provision thereof where such express mention is not made.

(b) To the extent any Additional Amounts are payable on the Debt Securities of a particular series, the Company shall inform the Paying Agent pursuant to a written notice of the Additional Amount that shall be payable for each $1,000 denomination (or other minimum denomination as may be specified pursuant to Section 3.01) of the Debt Securities of such series. Upon receipt of such written notice by the Company regarding a Holder’s eligibility for payment and the amount to be paid, the Paying Agent shall make such payment. For the avoidance of doubt, the Paying Agent shall have no liability whatsoever to pay any Additional Amounts or to determine whether Additional Amounts are due.

(c) Any payments by the Company in respect of the Debt Securities will be made subject to any withholding or deduction required pursuant to FATCA (a “FATCA Withholding Tax”), and the Company shall not be required to pay any Additional Amounts on account of any such deduction or withholding required pursuant to FATCA.

(d) With respect to any series of Debt Securities, any Paying Agent shall be entitled to make a deduction or withholding from any payment which it makes under the Debt Securities of such series and this Indenture for or on account of (i) any present or future taxes, duties or charges if and to the extent so required by any applicable law and (ii) any FATCA Withholding Tax (together, “Applicable Law”). In either case, the Paying Agent shall make any payment after a deduction or withholding has been made pursuant to Applicable Law and shall report to the relevant authorities the amount so deducted or withheld. However, such deduction or withholding shall not apply to payments made under the Debt Securities of such series and this Indenture through the relevant clearing systems. In all cases, the Paying Agent shall have no obligation to gross up any payment made subject to any deduction or withholding pursuant to Applicable Law. In addition, amounts deducted or withheld by the Paying Agent under this Section 10.04(d) shall be treated as paid to the Holder of a Debt Security, and the Company shall not pay Additional Amounts in respect of such deduction or withholding, except to the extent the provisions in this Section 10.04 explicitly provide otherwise.

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SECTION 2.07. Redemption.

(a) Article Eleven of the Base Indenture is hereby amended by amending and restating Section 11.04 in its entirety, which shall read as follows:

Section 11.04. Notice of Redemption. Unless otherwise specified pursuant to Section 3.01, notice of redemption shall be given in the manner provided in Section 1.06 not less than 10 nor more than 60 days prior to the Redemption Date, to each Holder of Debt Securities to be redeemed.

All notices of redemption shall state:

(1) the Redemption Date;

(2) the Redemption Price, or the manner in which the Redemption Price is to be determined;

(3) if less than all Outstanding Debt Securities of any series are to be redeemed, the identification and the principal amount (or, in the case of Principal Indexed Securities, face amount) of the particular Debt Securities to be redeemed;

(4) that on the Redemption Date the Redemption Price will become due and payable in respect of each such Debt Security to be redeemed, and that any interest thereon shall cease to accrue on and after said date;

(5) the Place or Places of Payment where such Debt Securities, together in the case of Bearer Securities with all Coupons, if any, appertaining thereto maturing after the Redemption Date, are to be surrendered for payment of the Redemption Price; and

(6) the CUSIP number or numbers, the Common Code, or the ISIN, if any, with respect to such Debt Securities.

A notice of redemption published as contemplated by Section 11.04 need not identify particular Registered Securities to be redeemed.

Notice of redemption of Debt Securities to be redeemed shall be prepared by the Company and at the election of the Company shall be given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of the Company.

(b) Article Eleven of the Base Indenture is hereby further amended by amending and restating Section 11.08 in its entirety, which shall read as follows:

Section 11.08. Optional Redemption in the Event of Change in Tax Treatment. In addition to any redemption provisions that may be specified pursuant to Section 3.01 for the Debt Securities of any series, the Debt Securities are redeemable, as a whole but not in part, at the option of the Company, on not less than 10 nor more than 60 days’ notice, at any time at a Redemption Price equal to 100% of the principal amount (or, in the case of Principal Indexed Securities, face amount) (and premium, if any), together with accrued but unpaid interest, if any, in respect of such Debt Securities to (but excluding) the date fixed for redemption (or, in the case of Discount Debt Securities, the accreted face amount thereof, together with accrued interest, if any, or, in the case of Principal Indexed Securities, the amount specified pursuant to Section 3.01)

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(a “Tax Event Redemption”), and any Debt Securities convertible into dollar preference shares or Conversion Securities of the Company may, at the option of the Company, be converted as a whole, if, at any time, the Company shall determine that (a) in making payment under such Debt Securities in respect of principal (or premium, if any), interest or missed payment it has or will or would become obligated to pay Additional Amounts, provided such obligation to pay Additional Amounts results from a change in or amendment to the laws of the Taxing Jurisdiction, or any change in the official application or interpretation of such laws (including a decision of any court or tribunal), or any change in, or in the official application or interpretation of, or execution of, or amendment to, any treaty or treaties affecting taxation to which the United Kingdom is a party, which change, amendment or execution becomes effective on or after the date of original issuance of the Debt Securities of such series or (b) the payment of interest in respect of such Debt Securities has become or will or would be treated as a “distribution” within the meaning of Section 1000 of the Corporation Tax Act 2010 of the United Kingdom (or any statutory modification or re-enactment thereof for the time being), as a result of any change in or amendment to the laws of the Taxing Jurisdiction, or any change in the official application or interpretation of such laws including a decision of any court, which change or amendment becomes effective on or after the date of original issuance of the Debt Securities of such series; provided, however, that in the case of (a) above, no notice of redemption shall be given earlier than 90 days prior to the earliest date on which the Company would be obliged to pay Additional Amounts were a payment in respect of such Debt Securities then due.

SECTION 2.08. Subordination of Debt Securities.

Article Twelve of the Base Indenture is hereby amended by amending and restating Section 12.01(a) in its entirety, which shall read as follows:

Section 12.01. Debt Securities Subordinate to Certain Creditors.

(a) The Company covenants and agrees, and each Holder of Debt Securities of each series, by his acceptance thereof, likewise covenants and agrees, that (i) the Debt Securities of such series shall constitute unsecured obligations of the Company without any preference among themselves, and (ii) in the event of the winding up of the Company, to the extent and in the manner hereinafter set forth in this Article Twelve, the indebtedness represented by any of the Debt Securities of such series and the payment of the principal of (and premium, if any, on) and interest on each and all of the Debt Securities of such series is hereby expressly made subordinate and subject in right of payment to the prior payment in full of all claims of the Ordinary Creditors.

Subject to applicable law and unless the relevant Debt Securities provide otherwise, claims in respect of any Debt Security may not be set off, or be the subject of a counterclaim, by any Holder or by the Trustee in respect of any claims of such Holders to payment of any principal, premium or interest in respect of the Debt Securities or this Indenture, against or in respect of any of its obligations to the Company, and every Holder and the Trustee in respect of any claims of such Holders waives, and shall be treated for all purposes as if it had waived, any right that it might otherwise have to set-off, or to raise by way of counterclaim any of its claims in respect of any Debt Securities or this Indenture, against or in respect of any of its obligations to the Company. Notwithstanding the preceding sentence, if any of the rights and claims of any Holder are discharged by set-off, such Holder will immediately pay an amount equal to the amount of such discharge to the Company or, if applicable, the liquidator or trustee or receiver in the Company’s bankruptcy and, until such time as payment is made, will hold a sum equal to such amount in trust for the Company or, if applicable, the liquidator or trustee or receiver in the Company’s bankruptcy. Accordingly, such discharge will be deemed not to have taken place.

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ARTICLE III

MISCELLANEOUS PROVISIONS

SECTION 3.01. Effect of this Supplemental Indenture; Ratification and Integral Part. This Supplemental Indenture shall become effective upon its execution and delivery.

Except as hereby amended, the Base Indenture is in all respects ratified and confirmed and all the terms, provisions and conditions thereof (including any prior amendments thereto) shall be and remain in full force and effect. This Supplemental Indenture shall be deemed an integral part of the Base Indenture in the manner and to the extent herein and therein provided.

SECTION 3.02. Priority. The provisions of this Supplemental Indenture shall, subject to the terms hereof, supersede the provisions of the Base Indenture to the extent the Base Indenture is inconsistent herewith.

SECTION 3.03. Successors and Assigns. All covenants and agreements in the Base Indenture, as supplemented and amended by this Supplemental Indenture, by the Company shall bind its successors and assigns, whether so expressed or not.

SECTION 3.04. Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York, except that the authorization and execution by the Company of this Supplemental Indenture (in addition to the laws of the State of New York relevant to execution) and Section 2.08 of this Supplemental Indenture shall be governed by, and construed in accordance with, the laws of England and Wales.

SECTION 3.05. Counterparts. This Supplemental Indenture may be executed manually, by facsimile or by electronic signature in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument.

SECTION 3.06. Entire Agreement. This Supplemental Indenture constitutes the entire agreement of the parties hereto with respect to the amendments to the Base Indenture set forth herein.

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the day and year first above written.

[Signature Page to HSBC Holdings plc’s Eighth Supplemental Indenture to the Dated Subordinated Debt Securities Indenture]

Exhibit 4.2

HSBC HOLDINGS PLC,

as Issuer

THE BANK OF NEW YORK MELLON, LONDON BRANCH,

as Trustee

HSBC BANK USA, NATIONAL ASSOCIATION,

as Paying Agent, Registrar and Calculation Agent

NINTH SUPPLEMENTAL INDENTURE

Dated as of November 18, 2024

To the Dated Subordinated Debt Securities Indenture, dated as of March 12, 2014, among the Issuer, the

Trustee and the Paying Agent, Registrar and Exchange Rate Agent

$1,750,000,000 5.874% Fixed Rate/Floating Rate Subordinated Unsecured Notes due 2035

TABLE OF CONTENTS

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NINTH SUPPLEMENTAL INDENTURE, dated as of November 18, 2024 (this “Supplemental Indenture”), by and among HSBC Holdings plc, a public limited company duly organized and existing under the laws of England and Wales (the “Company”), having its principal office at 8 Canada Square, London E14 5HQ, England, The Bank of New York Mellon, London Branch, a New York banking corporation, as trustee (the “Trustee”), having its principal corporate trust office at 160 Queen Victoria Street, London, EC4V 4LA, United Kingdom and HSBC Bank USA, National Association, as Paying Agent, Registrar and Calculation Agent (together, the “Agent”), having its principal office at 66 Hudson Boulevard East, 545W9, New York, New York, United States 10001.

W I T N E S S E T H:

WHEREAS, the Company, the Trustee and the Agent have executed and delivered an indenture dated as of March 12, 2014 (as amended and supplemented from time to time, the “Base Indenture” and, together with this Supplemental Indenture, the “Indenture”), to provide for the issuance of the Company’s Debt Securities;

WHEREAS, Section 9.01(5) of the Base Indenture provides that the Company and the Trustee may enter into a supplemental indenture to establish the forms or terms of the Debt Securities of any series without the consent of the Holders as permitted under Sections 2.01 and 3.01 of the Base Indenture;

WHEREAS, the Company desires to issue a series of Debt Securities under the Base Indenture (as supplemented and amended by this Supplemental Indenture), $1,750,000,000 5.874% Fixed Rate/Floating Rate Subordinated Unsecured Notes due 2035 (such series of Debt Securities, the “Notes”), to be issued pursuant to this Supplemental Indenture;

WHEREAS, all conditions and requirements necessary to make this Supplemental Indenture a valid and binding instrument in accordance with the terms of the Base Indenture have been performed and fulfilled and the execution and delivery hereof have been in all respects duly authorized;

NOW, THEREFORE, each party agrees as follows for the benefit of the other parties and the equal and ratable benefit of the Holders.

ARTICLE 1

DEFINITIONS

SECTION 1.01. Definition of Terms. For all purposes of this Supplemental Indenture:

(a) capitalized terms used herein but not otherwise defined shall have the meanings assigned to them in the Base Indenture;

(b) all other terms used herein that are defined in the Trust Indenture Act, either directly or by reference therein, have the meanings assigned to them therein;

(c) the singular includes the plural and vice versa;

(d) the use of “or” is not intended to be exclusive unless expressly indicated otherwise;

(e) the section headings herein are for convenience only and shall not affect the construction of this Supplemental Indenture;

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(f) wherever the words “include,” “includes” or “including” are used in this Supplemental Indenture, they shall be deemed to be followed by the words “without limitation”;

(g) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision; and

(h) the references herein to a specific Section, Article or Exhibit refer to Sections or Articles of, or an Exhibit to, this Supplemental Indenture, unless otherwise specified.

SECTION 1.02. Supplemental Definitions. The following definitions shall apply to the Notes only:

(a) “Agent” has the meaning set forth in the introduction to this Supplemental Indenture;

(b) “Applicable Currency” means Dollars;

(c) “Base Indenture” has the meaning set forth in the recitals to this Supplemental Indenture;

(d) “Benchmark” has the meaning set forth in Section 3.02(a);

(e) “Benchmark Replacement” means the first alternative set forth in the order below that can be determined by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) as of the Benchmark Replacement Date:

(i) the sum of: (A) the alternate rate of interest that has been selected or recommended by the Relevant Governmental Body as the replacement for the then-current Benchmark for the applicable Corresponding Tenor (if any) and (B) the Benchmark Replacement Adjustment;

(ii) the sum of: (A) the ISDA Fallback Rate and (B) the Benchmark Replacement Adjustment; and

(iii) the sum of: (A) the alternate rate of interest that has been selected by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) as the replacement for the then-current Benchmark for the applicable Corresponding Tenor giving due consideration to any industry-accepted rate of interest as a replacement for the then-current Benchmark for Dollar-denominated floating rate notes at such time and (B) the Benchmark Replacement Adjustment;

(f) “Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) as of the Benchmark Replacement Date:

(i) the spread adjustment (which may be a positive or negative value or zero) that has been (A) selected or recommended by the Relevant Governmental Body or (B) determined by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) in accordance with the method for calculating or determining such spread adjustment that has been selected or recommended by the Relevant Governmental Body, in each case for the applicable Unadjusted Benchmark Replacement;

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(ii) if the applicable Unadjusted Benchmark Replacement is equivalent to the ISDA Fallback Rate, then the ISDA Fallback Adjustment;

(iii) the spread adjustment (which may be a positive or negative value or zero) that has been selected by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) giving due consideration to industry-accepted spread adjustments (if any), or method for calculating or determining such spread adjustment, for the replacement of the then-current Benchmark with the applicable Unadjusted Benchmark Replacement for Dollar-denominated floating rate notes at such time;

(g) “Benchmark Replacement Conforming Changes” has the meaning set forth in Section 3.03(b);

(h) “Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

(i) in the case of clause (i) or (ii) of the definition of “Benchmark Transition Event,” the later of (A) the date of the public statement or publication of information referenced therein and (B) the date on which the administrator of the Benchmark permanently or indefinitely ceases to provide the Benchmark; or

(ii) in the case of clause (iii) of the definition of “Benchmark Transition Event,” the date of the public statement or publication of information referenced therein.

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date will be deemed to have occurred prior to the Reference Time for such determination;

(i) “Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

(i) a public statement or publication of information by or on behalf of the administrator of the Benchmark announcing that such administrator has ceased or will cease to provide the Benchmark, permanently or indefinitely, provided that, at the time of such statement or publication, there is no successor administrator that will continue to provide the Benchmark;

(ii) a public statement or publication of information by the regulatory supervisor for the administrator of the Benchmark, the central bank for the currency of the Benchmark, an insolvency official with jurisdiction over the administrator for the Benchmark, a resolution authority with jurisdiction over the administrator for the Benchmark or a court or an entity with similar insolvency or resolution authority over the administrator for the Benchmark, which states that the administrator of the Benchmark has ceased or will cease to provide the Benchmark permanently or indefinitely, provided that, at the time of such statement or publication, there is no successor administrator that will continue to provide the Benchmark; or

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(iii) a public statement or publication of information by the regulatory supervisor for the administrator of the Benchmark announcing that the Benchmark is no longer representative;

(j) “Benchmark Transition Provisions” has the meaning set forth in Section 3.03;

(k) “Business Day” means a day on which commercial banks and foreign exchange markets settle payments and are open for general business (including dealings in foreign exchange and foreign currency deposits) in London, England, and in the City of New York, United States;

(l) “Calculation Agent” means HSBC Bank USA, National Association, or its successor appointed by the Company pursuant to the Calculation Agent Agreement;

(m) “Calculation Agent Agreement” means the calculation agent agreement dated as of the Issue Date between the Company and the Calculation Agent;

(n) “Capital Disqualification Event” means an event that shall be deemed to have occurred if the Company determines, at any time after the Issue Date, there is a change in the regulatory classification of the Notes that results or will result in either their:

(i) exclusion in whole or in part from the regulatory capital for the HSBC Group; or

(ii) reclassification in whole or in part as a form of regulatory capital of the HSBC Group that is lower than tier 2 capital (if any);

(o) “Capital Disqualification Event Redemption” has the meaning set forth in Section 2.02;

(p) “Company” has the meaning set forth in the introduction to this Supplemental Indenture;

(q) “Compounded Daily SOFR” has the meaning set forth in Section 3.02(b);

(r) “Corresponding Tenor” with respect to a Benchmark Replacement means a tenor (including overnight) having approximately the same length (disregarding business day adjustments) as the applicable tenor for the then-current Benchmark;

(s) “d” has the meaning set forth in Section 3.02(b);

(t) “d₀” has the meaning set forth in Section 3.02(b);

(u) “designee” means an Affiliate or any other agent of the Company;

(v) “Fixed Rate Period” has the meaning set forth in Section 3.01(a);

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(w) “Fixed Rate Period Interest Payment Date” means May 18 and November 18 of each year, beginning on May 18, 2025;

(x) “Floating Rate Interest Period” means, during the Floating Rate Period, the period beginning on (and including) a Floating Rate Period Interest Payment Date and ending on (but excluding) the next succeeding Floating Rate Period Interest Payment Date; provided that the first Floating Rate Interest Period will begin on (and include) November 18, 2034 and will end on (but exclude) the first Floating Rate Period Interest Payment Date;

(y) “Floating Rate Period” has the meaning set forth in Section 3.01(b);

(z) “Floating Rate Period Interest Payment Date” means February 18, 2035, May 18, 2035, August 18, 2035 and November 18, 2035;

(aa) “HSBC Group” means the Company together with its subsidiary undertakings;

(bb) “i” has the meaning set forth in Section 3.02(b);

(cc) “Initial Interest Rate” means 5.874% per annum;

(dd) “Interest Determination Date” means the third Business Day preceding the applicable Interest Payment Date;

(ee) “Indenture” has the meaning set forth in the recitals to this Supplemental Indenture;

(ff) “Interest Payment Date” means a Fixed Rate Period Interest Payment Date or a Floating Rate Period Interest Payment Date, as applicable;

(gg) “ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. (“ISDA”) or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time;

(hh) “ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor;

(ii) “ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment;

(jj) “Issue Date” has the meaning set forth in Section 2.01(c);

(kk) “Margin” has the meaning set forth in Section 3.01(b);

(ll) “Maturity Date” has the meaning set forth in Section 2.01(c);

(mm) “n_i” has the meaning set forth in Section 3.02(b);

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(nn) “Notes” has the meaning set forth in the recitals to this Supplemental Indenture;

(oo) “NY Federal Reserve’s Website” means the website of the Federal Reserve Bank of New York at http://www.newyorkfed.org (or any successor website);

(pp) “Par Redemption” has the meaning set forth in Section 4.02;

(qq) “Par Redemption Date” means November 18, 2034;

(rr) “Reference Time” means (i) if the Benchmark is Compounded Daily SOFR, for each USGS Business Day, 3:00 p.m. (New York time) on the next succeeding USGS Business Day, and (ii) if the Benchmark is not Compounded Daily SOFR, the time determined by the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) in accordance with the Benchmark Replacement Conforming Changes;

(ss) “Regular Record Date” has the meaning set forth in Section 2.01(d);

(tt) “Relevant Governmental Body” means the Federal Reserve and/or the Federal Reserve Bank of New York (“NY Federal Reserve”), or a committee officially endorsed or convened by the Federal Reserve and/or the NY Federal Reserve or any successor thereto;

(uu) “Relevant Supervisory Consent” means, in relation to any redemption or repurchase of the Notes, any required permission of the Relevant Regulator applicable to the Company pursuant to the Applicable Rules. For the avoidance of doubt, Relevant Supervisory Consent will not be required if (i) none of the Notes qualify as part of the Company’s regulatory capital pursuant to the Applicable Rules, (ii) the relevant Notes are repurchased for market-making purposes in accordance with any permission given by the Relevant Regulator pursuant to the Applicable Rules within the limits prescribed in such permission or (iii) the relevant Notes are being redeemed or repurchased pursuant to any general prior permission granted by the Relevant Regulator pursuant to the Applicable Rules within the limits prescribed in such permission;

(vv) “SOFR” has the meaning set forth in Section 3.02(b);

(ww) “SOFR_i” has the meaning set forth in Section 3.02(b);

(xx) “Trustee” has the meaning set forth in the introduction to this Supplemental Indenture;

(yy) “Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment; and

(zz) “USGS Business Day” has the meaning set forth in Section 3.02(b).

ARTICLE 2

THE NOTES

SECTION 2.01. Terms Relating to Principal and Interest on the Notes.

The following terms relating to the Notes are hereby established:

(a) The title of the Notes shall be “5.874% Fixed Rate/Floating Rate Subordinated Unsecured Notes due 2035”;

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(b) The aggregate principal amount of the Notes that may be authenticated and delivered under the Indenture shall not initially exceed $1,750,000,000 (except as otherwise provided in the Indenture);

(c) The Notes shall be issued on November 18, 2024 (the “Issue Date”) and the principal on the Notes shall be payable on November 18, 2035 (the “Maturity Date”);

(d) During the Fixed Rate Period, interest on the Notes shall be payable at the Initial Interest Rate and semi-annually in arrear on each Fixed Rate Period Interest Payment Date. During the Floating Rate Period, interest on the Notes shall be payable at a rate per annum determined in accordance with Article Four and quarterly in arrear on each Floating Rate Period Interest Payment Date. Accrual and computation of interest on the Notes shall be determined in accordance with Article Four. The “Regular Record Date” for the Notes shall be the 15^th calendar day preceding each Interest Payment Date, whether or not a Business Day;

(e) No premium, upon redemption or otherwise, shall be payable by the Company on the Notes;

(f) Principal of, and any interest on, the Notes shall be paid to the Holder through the Agent in its capacity as Paying Agent, having offices in New York City, United States;

(g) The Notes shall not be redeemable except as provided in Article Eleven of the Base Indenture, as amended by Sections 4.01 and 4.02 of this Supplemental Indenture. The Notes shall not be redeemable at the option of the Holders at any time;

(h) The Notes are not issued as Discount Debt Securities or as Indexed Securities and are not subject to a solvency condition that the Company is able to make such payment and remain able to pay its debts as they fall due and that its assets continue to exceed its liabilities (other than subordinated liabilities);

(i) The Company shall have no obligation to redeem or repurchase the Notes pursuant to any sinking fund or analogous provision;

(j) The Notes shall be issued only in denominations of $200,000 and integral multiples of $1,000 in excess thereof;

(k) The Notes shall be denominated in the Applicable Currency;

(l) The payment of principal of, and interest on, the Notes shall be payable only in the coin or currency in which the Notes are denominated which, pursuant to Section 2.01(k) above, shall be in the Applicable Currency;

(m) The Notes shall not be converted into or exchanged at the option of the Company or otherwise for stock or other securities of the Company pursuant to Article Thirteen of the Base Indenture;

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(n) The Notes shall be issued in the form of one or more global securities in registered form, without coupons attached, and the initial Holder with respect to each such global security shall be Cede & Co., as nominee of DTC;

(o) Except in limited circumstances, the Notes will not be issued in definitive form;

(p) The Notes shall be evidenced by one or more global securities in registered form substantially in the form of Exhibit A to this Supplemental Indenture; and

(q) Members of the HSBC Group other than the Company may repurchase or otherwise acquire any of the Notes then Outstanding at the same or differing prices in the open market, negotiated transactions or otherwise without giving prior notice to or obtaining any consent from Holders, in accordance with the Applicable Rules and, if required, subject to first complying with the applicable regulatory conditions as described in Section 4.01 of this Supplemental Indenture.

SECTION 2.02. Capital Disqualification Event Redemption.

In addition to any redemption provisions that may be specified pursuant to Section 3.01 of the Base Indenture for the Debt Securities of any series, if, at any time, the Company shall determine that a Capital Disqualification Event has occurred, the Notes are redeemable, as a whole but not in part, at the option of the Company, on not less than 10 nor more than 60 days’ notice, at a Redemption Price equal to 100% of the principal amount, together with accrued but unpaid interest, if any, in respect of the Notes to (but excluding) the date fixed for redemption (a “Capital Disqualification Event Redemption”).

ARTICLE 3

INTEREST CALCULATION IN RESPECT OF THE NOTES

SECTION 3.01. Interest Rate Terms Specific to the Notes.

(a) From (and including) the Issue Date to (but excluding) November 18, 2034 (the “Fixed Rate Period”), interest on the Notes will be payable at a rate of 5.874% per annum (the “Initial Interest Rate”). During the Fixed Rate Period, interest on the Notes will be payable semi-annually in arrear on each Fixed Rate Period Interest Payment Date.

(b) From (and including) November 18, 2034 to (but excluding) the Maturity Date (the “Floating Rate Period”), the interest rate on the Notes will be equal to the Benchmark plus 1.90% per annum (the “Margin”). During the Floating Rate Period, interest on the Notes will be payable quarterly in arrear on each Floating Rate Period Interest Payment Date. The interest rate on the Notes will be calculated quarterly on each applicable Interest Determination Date.

(c) During the Fixed Rate Period:

(i) Interest on the Notes will be calculated on the basis of twelve 30-day months or, in the case of an incomplete month, the actual number of days elapsed, in each case assuming a 360-day year.

(ii) If any Fixed Rate Period Interest Payment Date is not a Business Day, such Fixed Rate Period Interest Payment Date will be postponed to the next day that is a Business Day, but interest on that payment will not accrue during the period from and after the scheduled Fixed Rate Period Interest Payment Date.

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(d) During the Floating Rate Period:

(i) Notwithstanding Section 3.10 of the Base Indenture, interest on the Notes will be calculated on the basis of the actual number of days in each Floating Rate Interest Period, assuming a 360-day year.

(ii) Notwithstanding Section 1.13 of the Base Indenture, if any scheduled Floating Rate Period Interest Payment Date (other than the Maturity Date), is not a Business Day, such Floating Rate Period Interest Payment Date will be postponed to the next day that is a Business Day; provided that if that Business Day falls in the next succeeding calendar month, such Floating Rate Period Interest Payment Date will be the immediately preceding Business Day. If any such Floating Rate Period Interest Payment Date (other than the Maturity Date), is postponed or brought forward as described above, the payment of interest due on such postponed or brought forward Floating Rate Period Interest Payment Date will include interest accrued to but excluding such postponed or brought forward Floating Rate Period Interest Payment Date.

(iii) If the Maturity Date or date of redemption or repayment of the Notes is not a Business Day, the Company may pay interest and principal on the next succeeding Business Day, but interest on that payment will not accrue during the period from and after the Maturity Date or date of redemption or repayment of the Notes.

(iv) If a date of redemption or repayment of the Notes falls within the Floating Rate Period but does not occur on a Floating Rate Period Interest Payment Date, (A) the related Interest Determination Date shall be deemed to be the date that is three Business Days prior to such date of redemption or repayment, (B) the related Observation Period shall be deemed to end on (but exclude) the date which is five USGS Business Days prior to such date of redemption or repayment, (C) the Floating Rate Interest Period will be deemed to be shortened accordingly and (D) corresponding adjustments will be deemed to be made to the Compounded Daily SOFR formula.

(v) The interest rate on the Notes during the Floating Rate Period will in no event be higher than the maximum rate permitted by law or lower than 0% per annum.

SECTION 3.02. Calculation of the Benchmark.

(a) “Benchmark” means, initially, Compounded Daily SOFR; provided that if a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement.

(b) “Compounded Daily SOFR” means, in relation to a Floating Rate Interest Period, the rate of return of a daily compound interest investment (with SOFR as reference rate for the calculation of interest) during the related Observation Period and will be calculated by the Calculation Agent on the related Interest Determination Date as follows:

Where:

“d” means, in relation to any Observation Period, the number of calendar days in such Observation Period;

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“d₀” means, in relation to any Observation Period, the number of USGS Business Days in such Observation Period;

“i” means, in relation to any Observation Period, a series of whole numbers from one to d0, each representing the relevant USGS Business Day in chronological order from (and including) the first USGS Business Day in such Observation Period;

“ni” means, in relation to any USGS Business Day “i” in the relevant Observation Period, the number of calendar days from (and including) such USGS Business Day “i” up to (but excluding) the following USGS Business Day;

“Observation Period” means, in respect of each Floating Rate Interest Period, the period from (and including) the date which is five USGS Business Days prior to the first day of such Floating Rate Interest Period to (but excluding) the date which is five USGS Business Days prior to the Interest Payment Date for such Floating Rate Interest Period; provided that the first Observation Period shall commence on (and include) the date which is five USGS Business Days prior to the Par Redemption Date;

“SOFR” means, in relation to any day, the rate determined by the Calculation Agent in accordance with the following provisions:

(i) the daily Secured Overnight Financing Rate for trades made on such day, available at or around the Reference Time on the NY Federal Reserve’s Website;

(ii) if the rate specified in (i) above is not available at or around the Reference Time for such day (and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred), the daily Secured Overnight Financing Rate in respect of the last USGS Business Day for which such rate was published on the NY Federal Reserve’s Website;

“SOFR_i” means, in relation to any USGS Business Day “i” in the relevant Observation Period, SOFR in respect of such USGS Business Day; and

“USGS Business Day” means any day except for a Saturday, Sunday or a day on which the Securities Industry and Financial Markets Association or any successor thereto (“SIFMA”) recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

Notwithstanding clauses (i) and (ii) of the definition of “SOFR” above, if the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) determines on or prior to the relevant Interest Determination Date that a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR, then the “Benchmark Transition Provisions” set forth below will thereafter apply to all determinations of the rate of interest payable on the Notes during the Floating Rate Period.

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In accordance with and subject to the Benchmark Transition Provisions, after a Benchmark Transition Event and related Benchmark Replacement Date have occurred, the amount of interest that will be payable for each interest period on the Notes during the Floating Rate Period will be determined by reference to a rate per annum equal to the Benchmark Replacement plus the Margin.

SECTION 3.03. Benchmark Transition Provisions.

(a) If the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) determines that a Benchmark Transition Event and related Benchmark Replacement Date have occurred prior to the applicable Reference Time in respect of any determination of the Benchmark on any date, the applicable Benchmark Replacement will replace the then-current Benchmark for all purposes relating to the Notes during the Floating Rate Period in respect of such determination on such date and all determinations on all subsequent dates; provided that, if the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) is unable to or does not determine a Benchmark Replacement in accordance with the provisions below prior to 5:00 p.m. (New York time) on the relevant Interest Determination Date, the interest rate for the related Floating Rate Interest Period will be equal to the interest rate in effect for the immediately preceding Floating Rate Interest Period or, in the case of the Interest Determination Date prior to the first Floating Rate Period Interest Payment Date, the Initial Interest Rate.

(b) In connection with the implementation of a Benchmark Replacement, the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) will have the right to make changes to (i) any Interest Determination Date, Floating Rate Period Interest Payment Date, Reference Time, business day convention or Floating Rate Interest Period, (ii) the manner, timing and frequency of determining the rate and amounts of interest that are payable on the Notes during the Floating Rate Period and the conventions relating to such determination and calculations with respect to interest, (iii) rounding conventions, (iv) tenors and (v) any other terms or provisions of the Notes during the Floating Rate Period, in each case that the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) determines, from time to time, to be appropriate to reflect the determination and implementation of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) decides that implementation of any portion of such market practice is not administratively feasible or determine that no market practice for use of the Benchmark Replacement exists, in such other manner as the Company (in consultation, to the extent practicable, with the Calculation Agent) or the Company’s designee (in consultation with the Company) determines is appropriate (acting in good faith)) (the “Benchmark Replacement Conforming Changes”). Any Benchmark Replacement Conforming Changes will apply to the Notes for all future Floating Rate Interest Periods.

(c) The Company will promptly give notice of the determination of the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes to the Trustee, the Paying Agent, the Calculation Agent and the Holders, provided that failure to provide such notice will have no impact on the effectiveness of, or otherwise invalidate, any such determination.

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(d) All percentages resulting from any calculation in connection with any interest rate on the Notes shall be rounded, if necessary, to the nearest one hundred thousandth of a percentage point, with five one-millionths of a percentage point rounded upward (for example, 9.876545% (or 0.09876545) would be rounded to 9.87655% (or 0.0987655)), and all Applicable Currency amounts would be rounded to the nearest cent, with one-half cent being rounded upward.

(e) All determinations, decisions, elections and any calculations made by the Company, the Calculation Agent or the Company’s designee for the purposes of calculating the applicable interest on the Notes will be conclusive and binding on the Holders, the Company, the Trustee and the Paying Agent, absent manifest error. If made by the Company, such determinations, decisions, elections and calculations will be made in consultation with the Calculation Agent, to the extent practicable. If made by the Company’s designee, such determinations, decisions, elections and calculations will be made after consulting with the Company, and the Company’s designee will not make any such determination, decision, election or calculation to which the Company objects. Notwithstanding anything to the contrary in the Indenture or the Notes, any determinations, decisions, calculations or elections made in accordance with this provision will become effective without consent from the Holders or any other party.

(f) Any determination, decision or election relating to the Benchmark not made by the Calculation Agent will be made on the basis described above. The Calculation Agent shall have no liability for not making any such determination, decision or election. In addition, the Company may designate an entity (which may be the Company’s Affiliate) to make any determination, decision or election that the Company has the right to make in connection with the determination of the Benchmark.

(g) Notwithstanding any other provision of “Benchmark Transition Provisions” set forth above, no Benchmark Replacement will be adopted, nor will the applicable Benchmark Replacement Adjustment be applied, nor will any Benchmark Replacement Conforming Changes be made, if, in the Company’s determination, the same could reasonably be expected to prejudice the qualification of the Notes as own funds instruments for the purposes of the Applicable Rules.

(h) By its acquisition of the Notes, each Holder (which, for these purposes, includes each beneficial owner) (i) acknowledges, accepts, consents and agrees to be bound by the Company’s or its designee’s determination of a Benchmark Transition Event, a Benchmark Replacement Date, the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, including as may occur without any prior notice from the Company and without the need for the Company to obtain any further consent from such Holder, (ii) waives any and all claims, in law and/or in equity, against the Trustee, the Paying Agent and the Calculation Agent or the Company’s designee for, agrees not to initiate a suit against the Trustee, the Paying Agent and the Calculation Agent or the Company’s designee in respect of, and agrees that none of the Trustee, the Paying Agent or the Calculation Agent or the Company’s designee will be liable for, the determination of or the failure to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, and any losses suffered in connection therewith and (iii) agrees that none of the Trustee, the Paying Agent or the Calculation Agent or the Company’s designee will have any obligation to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes (including any adjustments thereto), including in the event of any failure by the Company to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes.

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ARTICLE 4

AMENDMENTS TO THE BASE INDENTURE APPLICABLE TO THE NOTES ONLY

SECTION 4.01. Applicability of Article. With respect to the Notes only, Article Eleven of the Base Indenture is amended by amending and restating Section 11.01 in its entirety, which shall read as follows:

Section 11.01. Applicability of Article. Debt Securities of any series that are redeemable before their Stated Maturity, if any, shall be redeemable in accordance with their terms and, except as otherwise specified pursuant to Section 3.01 with respect to the Debt Securities of such series, in accordance with this Article. Notwithstanding anything to the contrary in the Indenture or the Notes, the Company may only redeem or repurchase the Notes prior to the Maturity Date pursuant to this Article Eleven if, and to the extent then required by the Applicable Rules, (i) the Company has obtained any Relevant Supervisory Consent and (ii) prior to the fifth anniversary of the Issue Date, (a) the Company has demonstrated to the satisfaction of the Relevant Regulator that (x) pursuant to a Capital Disqualification Event Redemption, the relevant change in the regulatory classification of the Notes was not reasonably foreseeable on the Issue Date or (y) pursuant to a Tax Event Redemption, the relevant tax event is a change in the applicable tax treatment of the Notes which is material and was not reasonably foreseeable on the Issue Date; or (b) in any relevant circumstances, the Company has (or will have), before or at the same time as such redemption or repurchase, replaced the Notes with own funds instruments of equal or higher quality at terms that are sustainable for the Company’s income capacity, and the Relevant Regulator has permitted such action on the basis of the determination that it would be beneficial from a prudential point of view and justified by exceptional circumstances; and/or (c) the Company has complied with any alternative or additional pre-conditions to redemption or repurchase, as applicable, set out in the Applicable Rules.

SECTION 4.02. Par Redemption.

The Company may redeem the Notes in whole (but not in part) in its sole discretion on November 18, 2034 (the “Par Redemption Date”). The Redemption Price will be equal to 100% of their principal amount plus any accrued and unpaid interest to (but excluding) the Par Redemption Date (the “Par Redemption”).

SECTION 4.03. UK Bail-in Power. With respect to the Notes only, Article Sixteen of the Base Indenture is amended by amending and restating Section 16.01(d) in its entirety, which shall read as follows:

Section 16.01(d). Notwithstanding anything to the contrary in the Indenture, including Article 9, the Company hereby agrees that it shall not amend Section 16.01 without the prior consent of the Relevant Regulator, if and to the extent then required pursuant to the Applicable Rules.

ARTICLE 5

MISCELLANEOUS

SECTION 5.01. Effect of this Supplemental Indenture; Ratification and Integral Part. This Supplemental Indenture shall become effective upon its execution and delivery.

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Except as hereby expressly amended with respect to the Notes only, the Base Indenture is in all respects ratified and confirmed and all the terms, provisions and conditions thereof (including any prior amendments thereto) shall be, and remain, in full force and effect. This Supplemental Indenture shall be deemed an integral part of the Base Indenture in the manner and to the extent herein and therein provided.

SECTION 5.02. Priority. The provisions of this Supplemental Indenture shall, with respect to the Notes and as otherwise provided herein and subject to the terms hereof, supersede the provisions of the Base Indenture to the extent the Base Indenture is inconsistent herewith.

SECTION 5.03. Successors and Assigns. All covenants and agreements in the Base Indenture, as supplemented and amended by this Supplemental Indenture, by the Company shall bind its successors and assigns, whether so expressed or not.

SECTION 5.04. Subsequent Holders’ Agreement. Any Holder (which, for these purposes, includes each beneficial owner of the Notes) that acquires the Notes in the secondary market and any successors, assigns, heirs, executors, administrators, trustees in bankruptcy and legal representatives of any Holder or beneficial owner of the Notes shall be deemed to acknowledge, accept, agree to be bound by and consent to the same provisions specified herein to the same extent as the Holders or beneficial owners of the Notes that acquire the Notes upon their initial issuance, including, without limitation, with respect to the acknowledgement and agreement to be bound by and consent to the terms of the Notes related to the UK Bail-in Power, the Benchmark and the limited remedies available under the Indenture and the Notes for a non-payment of principal and/or interest on the Notes.

SECTION 5.05. Compliance. The Agent shall be entitled to take any action or to refuse to take any action which the Agent regards as necessary for the Agent to comply with any applicable law, regulation or fiscal requirement, court order, or the rules, operating procedures or market practice of any relevant stock exchange or other market or clearing system.

SECTION 5.06. Relation to Calculation Agent Agreement. In the event of any conflict between the Indenture and the Calculation Agent Agreement relating to the rights or obligations of the Calculation Agent in the Indenture in connection with the calculation of the interest rate on the Notes, the relevant terms of the Calculation Agent Agreement shall govern such rights and obligations.

SECTION 5.07. Governing Law. This Supplemental Indenture and the Notes shall be governed by, and construed in accordance with, the laws of the State of New York, except that the authorization and execution by the Company of this Supplemental Indenture and the Notes (in addition to the laws of the State of New York relevant to execution), Article Twelve of the Base Indenture and the corresponding provisions in the Notes shall be governed by, and construed in accordance with, the laws of England and Wales.

SECTION 5.08. Counterparts. This Supplemental Indenture may be executed manually, by facsimile or by electronic signature in any number of counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument.

SECTION 5.09. Entire Agreement. This Supplemental Indenture constitutes the entire agreement of the parties hereto with respect to the Notes and the amendments to the Base Indenture set forth herein.

[Remainder of page intentionally left blank]

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first stated above.

[Signature Page to the Ninth Supplemental Indenture]

EXHIBIT A

FORM OF 5.874% FIXED RATE/FLOATING RATE GLOBAL SECURITY

CUSIP No.: 404280 EL9

ISIN: US404280EL97

No.: [•]

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS GLOBAL SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

BY ITS ACQUISITION OF THE DEBT SECURITIES REPRESENTED BY THIS GLOBAL SECURITY, EACH HOLDER (WHICH, FOR THESE PURPOSES, INCLUDES EACH BENEFICIAL OWNER OF THE DEBT SECURITIES): ACKNOWLEDGES, ACCEPTS, CONSENTS AND AGREES, NOTWITHSTANDING ANY OTHER TERM OF THE DEBT SECURITIES, THE INDENTURE OR ANY OTHER AGREEMENTS, ARRANGEMENTS OR UNDERSTANDINGS BETWEEN THE ISSUER AND ANY HOLDER, TO BE BOUND BY: (X) THE EFFECT OF THE EXERCISE OF ANY UK BAIL-IN POWER BY THE RELEVANT UK RESOLUTION AUTHORITY IN RELATION TO ANY DEBT SECURITIES THAT (WITHOUT LIMITATION) MAY INCLUDE AND RESULT IN ANY OF THE FOLLOWING, OR SOME COMBINATION THEREOF: (I) THE REDUCTION OF ALL, OR A PORTION, OF THE AMOUNTS DUE (AS DEFINED ON THE REVERSE OF THIS GLOBAL SECURITY); (II) THE CONVERSION OF ALL, OR A PORTION, OF THE AMOUNTS DUE INTO THE ISSUER’S OR ANOTHER PERSON’S ORDINARY SHARES, OTHER SECURITIES OR OTHER OBLIGATIONS (AND THE ISSUE TO, OR CONFERRAL ON, THE HOLDER OF SUCH ORDINARY SHARES, OTHER SECURITIES OR OTHER OBLIGATIONS), INCLUDING BY MEANS OF AN AMENDMENT, MODIFICATION OR VARIATION OF THE TERMS OF THE DEBT SECURITIES OR THE INDENTURE; (III) THE CANCELLATION OF THE DEBT SECURITIES; AND/OR (IV) THE AMENDMENT OR ALTERATION OF THE MATURITY OF THE DEBT SECURITIES OR AMENDMENT OF THE AMOUNT OF INTEREST PAYABLE ON THE DEBT SECURITIES, OR THE INTEREST PAYMENT DATES, INCLUDING BY SUSPENDING PAYMENT FOR A TEMPORARY PERIOD; AND (Y) THE VARIATION OF THE TERMS OF THE DEBT SECURITIES OR THE INDENTURE, IF NECESSARY, TO GIVE EFFECT TO THE EXERCISE OF ANY UK BAIL-IN POWER BY THE RELEVANT UK RESOLUTION AUTHORITY.

THERE IS NO RIGHT OF ACCELERATION IN THE CASE OF NON-PAYMENT OF PRINCIPAL AND/OR INTEREST ON THE DEBT SECURITIES OR OF THE ISSUER’S FAILURE TO PERFORM ANY OF ITS OBLIGATIONS UNDER OR IN RESPECT OF THE DEBT SECURITIES. PAYMENT OF THE PRINCIPAL AMOUNT, TOGETHER WITH ACCRUED AND UNPAID PAYMENTS WITH RESPECT TO THE OUTSTANDING DEBT SECURITIES MAY BE ACCELERATED ONLY UPON CERTAIN EVENTS OF A WINDING UP AS SET FORTH IN THE INDENTURE.

A-1

GLOBAL SECURITY

HSBC Holdings plc

US$[•]

5.874% FIXED RATE/FLOATING RATE SUBORDINATED UNSECURED NOTES DUE 2035

This is a Global Security in respect of a duly authorized issue by HSBC Holdings plc (the “Issuer”, which term includes any successor Person under the Indenture hereinafter referred to) of debt securities (the “Debt Securities”), designated as specified in the title hereof, in the aggregate face amount of US$[•].

The Issuer, for value received, hereby promises to pay CEDE & CO., or registered assigns on November 18, 2035 (the “Maturity Date”) or on such earlier date as this Global Security may be redeemed, the principal amount hereof and to pay interest on the said principal amount from November 18, 2024 (the “Issue Date”) or the most recent Interest Payment Date on which interest has been paid or duly provided for, until maturity:

“Fixed Rate Period” means the period from (and including) the Issue Date, to (but excluding) November 18, 2034.

“Floating Rate Period” means the period from (and including) November 18, 2034 to (but excluding) the Maturity Date.

“Interest Payment Date” means any Fixed Rate Period Interest Payment Date or Floating Rate Period Interest Payment Date.

The “Benchmark” means, initially, Compounded Daily SOFR; provided that if a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement.

“Compounded Daily SOFR” means, in relation to a Floating Rate Interest Period, the rate of return of a daily compound interest investment (with SOFR as reference rate for the calculation of interest) during the related Observation Period and will be calculated by the Calculation Agent on the related Interest Determination Date as follows:

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Where:

“Calculation Agent” means HSBC Bank USA, National Association, or its successor appointed by the Issuer pursuant to the Calculation Agent Agreement;

“Calculation Agent Agreement” means the calculation agent agreement dated as of the Issue Date between the Issuer and the Calculation Agent;

“d” means, in relation to any Observation Period, the number of calendar days in such Observation Period;

“d₀” means, in relation to any Observation Period, the number of USGS Business Days in such Observation Period;

“i” means, in relation to any Observation Period, a series of whole numbers from one to d₀, each representing the relevant USGS Business Day in chronological order from (and including) the first USGS Business Day in such Observation Period;

“n_i” means, in relation to any USGS Business Day “i” in the relevant Observation Period, the number of calendar days from (and including) such USGS Business Day “i” up to (but excluding) the following USGS Business Day;

“Observation Period” means, in respect of each Floating Rate Interest Period, the period from (and including) the date which is five USGS Business Days prior to the first day of such Floating Rate Interest Period to (but excluding) the date which is five USGS Business Days prior to the Interest Payment Date for such Floating Rate Interest Period; provided that the first Observation Period shall commence on (and include) the date which is five USGS Business Days prior to November 18, 2034 (the “Par Redemption Date”);

“SOFR” means, in relation to any day, the rate determined by the Calculation Agent in accordance with the Indenture and the following provisions:

(i) the daily Secured Overnight Financing Rate for trades made on such day, available at or around the Reference Time on the NY Federal Reserve’s Website;

(ii) if the rate specified in (i) above is not available at or around the Reference Time for such day (and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred), the daily Secured Overnight Financing Rate in respect of the last USGS Business Day for which such rate was published on the NY Federal Reserve’s Website;

“SOFR_i” means, in relation to any USGS Business Day “i” in the relevant Observation Period, SOFR in respect of such USGS Business Day; and

“USGS Business Day” means any day except for a Saturday, Sunday or a day on which the Securities Industry and Financial Markets Association or any successor thereto (“SIFMA”) recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

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Notwithstanding clauses (i) and (ii) of the definition of “SOFR” above, if the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) determine on or prior to the relevant Interest Determination Date that a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR, then the “Benchmark Transition Provisions” set forth below will thereafter apply to all determinations of the rate of interest payable on the Debt Securities during the Floating Rate Period.

In accordance with and subject to the Benchmark Transition Provisions, after a Benchmark Transition Event and related Benchmark Replacement Date have occurred, the amount of interest that will be payable for each interest period on the Debt Securities during the Floating Rate Period will be determined by reference to a rate per annum equal to the Benchmark Replacement plus the Margin.

“designee” means an Affiliate or any other agent of the Issuer.

“Reference Time” means (i) if the Benchmark is Compounded Daily SOFR, for each USGS Business Day, 3:00 p.m. (New York time) on the next succeeding USGS Business Day, and (ii) if the Benchmark is not Compounded Daily SOFR, the time determined by the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) in accordance with the Benchmark Replacement Conforming Changes.

Benchmark Transition Provisions. If the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) determines that a Benchmark Transition Event and related Benchmark Replacement Date have occurred prior to the applicable Reference Time in respect of any determination of the Benchmark on any date, the applicable Benchmark Replacement will replace the then-current Benchmark for all purposes relating to the Debt Securities during the Floating Rate Period in respect of such determination on such date and all determinations on all subsequent dates; provided that, if the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) is unable to or does not determine a Benchmark Replacement in accordance with the provisions below prior to 5:00 p.m. (New York time) on the relevant Interest Determination Date, the interest rate for the related Floating Rate Interest Period will be equal to the interest rate in effect for the immediately preceding Floating Rate Interest Period or, in the case of the Interest Determination Date prior to the first Floating Rate Period Interest Payment Date, the Initial Interest Rate.

In connection with the implementation of a Benchmark Replacement, the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) will have the right to make changes to (i) any Interest Determination Date, Floating Rate Period Interest Payment Date, Reference Time, business day convention or Floating Rate Interest Period, (ii) the manner, timing and frequency of determining the rate and amounts of interest that are payable on the Debt Securities during the Floating Rate Period and the conventions relating to such determination and calculations with respect to interest, (iii) rounding conventions, (iv) tenors and (v) any other terms or provisions of the Debt Securities during the Floating Rate Period, in each case that the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) determine, from time to time, to be appropriate to reflect the determination and implementation of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) decide that implementation of any portion of such market practice is not administratively feasible or determine that no market practice for use of the Benchmark Replacement exists, in such other manner as the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) determine is appropriate (acting in good faith)) (the “Benchmark Replacement Conforming Changes”). Any Benchmark Replacement Conforming Changes will apply to the Debt Securities for all future Floating Rate Interest Periods.

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The Issuer will promptly give notice of the determination of the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes to the Trustee, the Paying Agent, the Calculation Agent and the Holders; provided that failure to provide such notice will have no impact on the effectiveness of, or otherwise invalidate, any such determination.

All percentages resulting from any calculation in connection with any interest rate in respect of this Global Security shall be rounded, if necessary, to the nearest one hundred thousandth of a percentage point, with five one-millionths of a percentage point rounded upward (for example, 9.876545% (or 0.09876545) would be rounded to 9.87655% (or 0.0987655)), and all Applicable Currency amounts would be rounded to the nearest cent, with one-half cent being rounded upward.

All determinations, decisions, elections and any calculations made by the Issuer, the Calculation Agent or the Issuer’s designee for the purposes of calculating the applicable interest on the Debt Securities will be conclusive and binding on the Holders, the Issuer, the Trustee and the Paying Agent, absent manifest error. If made by the Issuer, such determinations, decisions, elections and calculations will be made in consultation with the Calculation Agent, to the extent practicable. If made by the Issuer’s designee, such determinations, decisions, elections and calculations will be made after consulting with the Issuer, and the Issuer’s designee will not make any such determination, decision, election or calculation to which the Issuer objects. Notwithstanding anything to the contrary in the Indenture or the Debt Securities, any determinations, decisions, calculations or elections made in accordance with this provision will become effective without consent from the Holders or any other party.

Any determination, decision or election relating to the Benchmark not made by the Calculation Agent will be made on the basis described above. The Calculation Agent shall have no liability for not making any such determination, decision or election. In addition, the Issuer may designate an entity (which may be the Issuer’s Affiliate) to make any determination, decision or election that the Issuer has the right to make in connection with the determination of the Benchmark.

Notwithstanding any other provision of “Benchmark Transition Provisions” set forth above, no Benchmark Replacement will be adopted, nor will the applicable Benchmark Replacement Adjustment be applied, nor will any Benchmark Replacement Conforming Changes be made, if in the Issuer’s determination, the same could reasonably be expected to prejudice the qualification of the Debt Securities as own funds instruments for the purposes of the Applicable Rules.

By its acquisition of the Debt Securities, each Holder (which, for these purposes, includes each beneficial owner) (i) acknowledges, accepts, consents and agrees to be bound by the Issuer’s or its designee’s determination of a Benchmark Transition Event, a Benchmark Replacement Date, the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, including as may occur without any prior notice from the Issuer and without the need for the Issuer to obtain any further consent from such Holder, (ii) waives any and all claims, in law and/or in equity, against the Trustee, the Paying Agent and the Calculation Agent or the Issuer’s designee for, agrees not to initiate a suit against the Trustee, the Paying Agent and the Calculation Agent or the Issuer’s designee in respect of, and agrees that none of the Trustee, the Paying Agent or the Calculation Agent or the Issuer’s designee will be liable for, the determination of or the failure to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, and any losses suffered in connection therewith and (iii) agrees that none of the Trustee, the Paying Agent or the Calculation Agent or the Issuer’s designee will have any obligation to determine any Benchmark Transition Event, any

A-5

Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes (including any adjustments thereto), including in the event of any failure by the Issuer to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes.

“Applicable Currency” means Dollars.

“Benchmark Replacement” means the first alternative set forth in the order below that can be determined by the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) as of the Benchmark Replacement Date:

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the Issuer (in consultation, to the extent practicable, with the Calculation Agent) or the Issuer’s designee (in consultation with the Issuer) as of the Benchmark Replacement Date:

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“Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date will be deemed to have occurred prior to the Reference Time for such determination.

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

“Business Day” means a day on which commercial banks and foreign exchange markets settle payments and are open for general business (including dealings in foreign exchange and foreign currency deposits) in London, England, and in the City of New York, United States.

“Corresponding Tenor” with respect to a Benchmark Replacement means a tenor (including overnight) having approximately the same length (disregarding business day adjustments) as the applicable tenor for the then-current Benchmark.

“Floating Rate Interest Period” means, during the Floating Rate Period, the period beginning on (and including) a Floating Rate Period Interest Payment Date and ending on (but excluding) the next succeeding Floating Rate Period Interest Payment Date; provided that the first Floating Rate Interest Period will begin on (and include) November 18, 2034 and will end on (but exclude) the first Floating Rate Period Interest Payment Date.

“Interest Determination Date” means the third Business Day preceding the applicable Interest Payment Date.

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“ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. (“ISDA”) or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time.

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor.

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment.

“NY Federal Reserve’s Website” means the website of the Federal Reserve Bank of New York at http://www.newyorkfed.org (or any successor website).

“Relevant Governmental Body” means the Federal Reserve and/or the Federal Reserve Bank of New York (“NY Federal Reserve”), or a committee officially endorsed or convened by the Federal Reserve and/or the NY Federal Reserve or any successor thereto.

“Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment.

Interest in respect of this Global Security that is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the Person in whose name this Global Security (or one or more Predecessor Global Securities) is registered at the close of business on the Regular Record Date for such interest.

Payment of interest, if any, in respect of this Global Security may be made by check mailed to the address of the Person entitled thereto as such address shall appear in the Register, or by wire transfer or transfer by any other means to an account designated in writing by such Person to the Paying Agent at least 15 days prior to such payment date.

Any interest in respect of this Global Security that is payable, but is not punctually paid or duly provided for, on any Interest Payment Date (herein called “Defaulted Interest”) shall forthwith cease to be payable to the Holders thereof on the relevant Regular Record Date by virtue of their having been such Holders; and such Defaulted Interest may be paid by the Issuer, at its election in each case, as provided in Clause (1) or (2) below:

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All payments made under or with respect to this Global Security shall be paid by the Issuer, without deduction or withholding for, or on account of, any and all present and future taxes, levies, imposts, duties, charges, fees, deductions or withholdings whatsoever imposed, levied, collected, withheld or assessed by or on behalf of the United Kingdom or any political subdivision or taxing authority thereof or therein having the power to tax (each, a “Taxing Jurisdiction”), unless required by law. If such deduction or withholding shall at any time be required by the law of the Taxing Jurisdiction, the Issuer shall pay such additional amounts (“Additional Amounts”) in respect of any payments of interest only (and not principal) on this Global Security as may be necessary so that the net amounts (including Additional Amounts) paid to the Holders, after such deduction or withholding, shall be equal to the respective amounts of interest which the Holders would have been entitled to receive in respect of this Global Security in the absence of such deduction or withholding, provided that the foregoing shall not apply to any such tax, levy, impost, duty, charge, fee, deduction or withholding which: (i) would not be payable or due but for the fact that the Holder or the beneficial owner of this Global Security is domiciled in, or is a national or resident of, or engaging in business or maintaining a permanent establishment or being physically present in, the Taxing Jurisdiction, or otherwise has some connection or former connection with the Taxing Jurisdiction other than the holding or ownership of this Global Security, or the collection of interest payments on, or the enforcement of, this Global Security; (ii) would not be payable or due but for the fact that this Global Security (x) is presented for payment in the Taxing Jurisdiction or (y) is presented for payment more than 30 days after the date payment became due or was provided for, whichever is later, except to the extent that the Holder would have been entitled to such Additional Amount on presenting the same for payment at the close of such 30-day period; (iii) would not have been imposed if presentation for payment of this Global Security had been made to a paying agent other than the paying agent to which the presentation was made; (iv) is imposed in respect of a Holder that is not the sole beneficial owner of the interest, or a portion of it, or that is a fiduciary or partnership, but only to the extent that a beneficiary or settlor with respect to the fiduciary, a beneficial owner or member of the partnership would not have been entitled to the payment of an Additional Amount had the beneficiary, settlor, beneficial owner or member received directly its beneficial or distributive share of the payment; (v) is imposed because of the failure to comply by the Holder or the beneficial owner of any payment on this Global Security with a request from the Issuer addressed to the Holder or the beneficial owner, including a written request from the Issuer related to a claim for relief under any applicable double tax treaty (x) to provide information concerning the nationality, residence, identity or connection with a taxing jurisdiction of the Holder or the beneficial owner or (y) to make any declaration or other similar claim to satisfy any information or reporting requirement, if the information or declaration is required or imposed by a statute, treaty, regulation, ruling or administrative practice of the Taxing Jurisdiction as a precondition to exemption from withholding or deduction of all or part of the tax, duty, assessment or other governmental charge; (vi) is imposed in respect of any estate, inheritance, gift, sale, transfer, personal property, wealth or similar tax, duty, assessment or other governmental charge; or (vii) is imposed in respect of any combination of the above items.

Whenever in this Global Security there is mentioned, in any context, the payment of interest, if any, on, or in respect of, any Debt Security or the net proceeds received on the sale or exchange of any Debt Security, such mention shall be deemed to include mention of the payment of Additional Amounts to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof and express mention of the payment of Additional Amounts (if applicable) in any provision hereof shall not be construed as excluding Additional Amounts in those provisions hereof where such express mention is not made.

Upon any exchange of a portion of this Global Security for a definitive Debt Security, the portion of the principal amount hereof so exchanged shall be endorsed by the Registrar on Schedule A hereto. The principal amount hereof shall be reduced for all purposes by the amount so exchanged and endorsed.

A-9

Reference is hereby made to the further provisions of this Global Security set forth on the reverse hereof, which further provisions shall for the purposes hereof have the same effect as if set forth at this place.

Unless the certificate of authentication hereon has been executed by the Trustee or an authenticating agent, this Global Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes.

[Remainder of page intentionally left blank]

A-10

IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly executed.

Dated: November 18, 2024

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

This is one of the Debt Securities of a series issued under the within-mentioned Indenture.

[Signature Page to the Fixed/Floating Rate Global Note]

REVERSE OF GLOBAL SECURITY

US$[•]

5.874% FIXED RATE/FLOATING RATE SUBORDINATED UNSECURED NOTES DUE 2035

This Global Security is one of a duly authorized issue of Debt Securities issued and to be issued in one or more series under and governed by an Indenture dated as of March 12, 2014, by and among the Issuer, The Bank of New York Mellon, London Branch, as trustee (the “Trustee,” which term includes any successor trustee under the Indenture), and HSBC Bank USA, National Association, as paying agent, registrar and exchange rate agent (as amended and supplemented from time to time, the “Base Indenture”), as amended and supplemented by a Ninth Supplemental Indenture dated as of November 18, 2024, by and among the Issuer, the Trustee and HSBC Bank USA, National Association, as paying agent, registrar and calculation agent (the “Ninth Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Issuer, the Trustee, the Holders and of the terms upon which the Debt Securities are, and are to be, authenticated and delivered.

The rights of Holders shall, in the event of the winding up of the Issuer, to the extent more fully set out in the Indenture, be subordinated and subject in right of payment to the prior payment in full of all claims of creditors of the Issuer except creditors in respect of any liability of the Issuer however arising for the payment of money, the right to payment of which by the Issuer by the terms thereof is, or is expressed to be, subordinated in the event of a winding up of the Issuer to the claims of all or any of the creditors of the Issuer, and creditors in respect of debt securities with no maturity issued pursuant to a separate indenture of even date as the Base Indenture between the Issuer and a trustee.

Under the terms of the Indenture, the Debt Securities may be redeemed, in whole but not in part, at the Issuer’s sole discretion, on not less than 10 nor more than 60 days’ notice, at any time at a Redemption Price equal to 100% of the principal amount thereof (and premium, if any), together with accrued but unpaid interest, if any, in respect of such Debt Securities to (but excluding) the date fixed for redemption (a “Tax Event Redemption”), if, at any time, the Issuer shall determine that:

(i) in making payment under such Debt Securities in respect of principal (or premium, if any), interest or missed payment the Issuer has or will or would become obligated to pay Additional Amounts, provided such obligation to pay Additional Amounts as provided in the Indenture and in this Global Security results from a change in or amendment to the laws of the Taxing Jurisdiction, or any change in the official application or interpretation of such laws (including a decision of any court or tribunal), or any change in, or in the official application or interpretation of, or execution of, or amendment to, any treaty or treaties affecting taxation to which the United Kingdom is a party, which change, amendment or execution becomes effective on or after the Issue Date; or

(ii) the payment of interest in respect of such Debt Securities has become or will or would be treated as a “distribution” within the meaning of Section 1000 of the Corporation Tax Act 2010 of the United Kingdom (or any statutory modification or reenactment thereof for the time being) as a result of any change in or amendment to the laws of the Taxing Jurisdiction, or any change in the official application or interpretation of such laws including a decision of any court, which change or amendment becomes effective on or after the Issue Date; provided, however, that in the case of (i) above, no notice of redemption shall be given earlier than 90 days prior to the earliest date on which the Issuer would be obliged to pay Additional Amounts were a payment in respect of such Debt Securities then due.

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Under the terms of the Indenture, if, at any time, the Issuer shall determine that a Capital Disqualification Event has occurred, the Debt Securities may be redeemed, in whole but not in part, at the Issuer’s sole discretion, on not less than 10 nor more than 60 days’ notice, at a Redemption Price equal to 100% of the principal amount, together with accrued but unpaid interest, if any, in respect of such Debt Securities to (but excluding) the applicable Redemption Date (a “Capital Disqualification Event Redemption”).

“Capital Disqualification Event” means an event that shall be deemed to have occurred if the Issuer determines, at any time after the Issue Date, there is a change in the regulatory classification of the Notes that results or will result in either their:

(i) exclusion in whole or in part from the regulatory capital for the HSBC Group; or

(ii) reclassification in whole or in part as a form of regulatory capital of the HSBC Group that is lower than tier 2 capital (if any).

Under the terms of the Indenture, the Debt Securities may be redeemed, in whole but not in part, at the Issuer’s sole discretion, on not less than 10 nor more than 60 days’ notice, on the Par Redemption Date. The Redemption Price will be equal to 100% of their principal amount plus any accrued and unpaid interest to (but excluding) the Par Redemption Date.

“Par Redemption Date” means November 18, 2034.

Notwithstanding anything to the contrary in the Indenture or the Debt Securities, the Issuer may only redeem or repurchase the Debt Securities prior to the Maturity Date pursuant to the Indenture if, and to the extent then required by the Applicable Rules, (i) the Issuer has obtained any Relevant Supervisory Consent and (ii) prior to the fifth anniversary of the Issue Date, (a) the Issuer has demonstrated to the satisfaction of the Relevant Regulator that (x) pursuant to a Capital Disqualification Event Redemption, the relevant change in the regulatory classification of the Debt Securities was not reasonably foreseeable on the Issue Date or (y) pursuant to a Tax Event Redemption, the relevant tax event is a change in the applicable tax treatment of the Debt Securities which is material and was not reasonably foreseeable on the Issue Date; or (b) in any relevant circumstances, the Issuer has (or will have), before or at the same time as such redemption or repurchase, replaced the Debt Securities with own funds instruments of equal or higher quality at terms that are sustainable for the Issuer’s income capacity, and the Relevant Regulator has permitted such action on the basis of the determination that it would be beneficial from a prudential point of view and justified by exceptional circumstances; and/or (c) the Issuer has complied with any alternative or additional pre-conditions to redemption or repurchase, as applicable, set out in the Applicable Rules.

“Applicable Rules” means, at any time, the laws, regulations, requirements, guidelines and policies relating to capital adequacy (including, without limitation, as to leverage) then in effect in the United Kingdom including, without limitation to the generality of the foregoing, the UK CRR, the Banking Act and any regulations, requirements, guidelines and policies relating to capital adequacy adopted by the Relevant Regulator from time to time (whether or not such requirements, guidelines or policies are applied generally or specifically to the Issuer or to the Issuer and any of its holding or subsidiary companies or any subsidiary of any such holding company), in each case as amended, supplemented or replaced from time to time.

“Banking Act” means the UK Banking Act 2009, as amended.

“HSBC Group” means the Issuer together with its subsidiary undertakings.

A-13

“Relevant Regulator” means the United Kingdom Prudential Regulation Authority or any successor entity or other entity primarily responsible for the prudential supervision of the Issuer.

“Relevant Supervisory Consent” means, in relation to any redemption or repurchase of the Debt Securities, any required permission of the Relevant Regulator applicable to the Issuer pursuant to the Applicable Rules. For the avoidance of doubt, Relevant Supervisory Consent will not be required if (i) none of the Debt Securities qualify as part of the Issuer’s regulatory capital pursuant to the Applicable Rules, (ii) the relevant Debt Securities are repurchased for market-making purposes in accordance with any permission given by the Relevant Regulator pursuant to the Applicable Rules within the limits prescribed in such permission or (iii) the relevant Debt Securities are being redeemed or repurchased pursuant to any general prior permission granted by the Relevant Regulator pursuant to the Applicable Rules within the limits prescribed in such permission.

“UK CRR” means Regulation (EU) No. 575/2013 on prudential requirements for credit institutions and investment firms of the European Parliament and of the Council of 26 June 2013, as amended or supplemented, as it forms part of domestic law in the United Kingdom by virtue of the European Union (Withdrawal) Act 2018, as amended.

If an Event of Default with respect to the Debt Securities of this series occurs and is continuing, then in such case the Trustee may, or if so requested by the Holders of not less than 25% in principal amount of the Outstanding Debt Securities of this series, shall declare the principal amount together with the accrued but unpaid interest of the Debt Securities of this series to be due and payable immediately, by a notice in writing to the Issuer (and to the Trustee if given by Holders), and upon any such declaration such principal amount shall become immediately due and payable in the manner and with the effect provided in the Indenture and this Global Security. At any time after such a declaration of acceleration with respect to the Debt Securities of this series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee, the Holders of a majority in principal amount of the Outstanding Debt Securities of this series, by written notice to the Issuer and the Trustee, may rescind and annul such declaration and its consequences in certain circumstances, as provided in the Indenture. If a Default with respect to Debt Securities of this series occurs and is continuing, the Trustee may pursue certain remedies as set forth in the Indenture. The Holders of not less than a majority in aggregate principal amount of the Outstanding Debt Securities of this series may on behalf of all Holders waive any past Event of Default or any Default under the Indenture or the Debt Securities and its consequences except a default (i) in the payment of principal of or any installment of interest on the Debt Securities or (ii) in respect of a covenant or provision which under the Indenture cannot be modified or amended without the consent of the Holder of this Debt Security, and any such consent or waiver shall bind every future Holder of this Debt Security and of any Debt Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Debt Security or such other Debt Securities.

An “Event of Default” with respect to the Debt Securities means any one of the following events: (i) an order is made by an English court which is not successfully appealed within 30 days after the date such order was made for winding up of the Issuer other than in connection with a scheme of amalgamation or reconstruction not involving bankruptcy or insolvency; or (ii) an effective resolution is validly adopted by the Issuer’s shareholders for winding up of the Issuer other than in connection with a scheme of amalgamation or reconstruction not involving bankruptcy or insolvency.

A “Default” with respect to the Debt Securities means any one of the following events: (i) failure to pay principal or premium, if any, on the Debt Securities at maturity, and such default continues for a period of 30 days; or (ii) failure to pay any interest on the Debt Securities when due and payable, which failure continues for 30 days.

A-14

If a Default occurs, the Trustee may institute proceedings in England (but not elsewhere) for the Issuer’s winding up; provided that the Trustee may not, upon the occurrence of a Default, accelerate the maturity of any Debt Securities then Outstanding, unless an Event of Default has occurred and is continuing.

The Indenture contains provisions permitting the Issuer and the Trustee (i) without the consent of the Holders of any Debt Securities issued under the Indenture to execute one or more supplemental indentures for certain enumerated purposes, such as to cure any ambiguity or to secure the Debt Securities, and (ii) with the consent of the Holders of not less than a majority in aggregate principal amount of the Outstanding Debt Securities of each series of Debt Securities affected thereby, to execute supplemental indentures for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the Indenture or of modifying in any manner the rights of Holders under the Indenture; provided that, with respect to certain enumerated provisions, no such supplemental indenture may be entered into without the consent of the Holder of each Outstanding Debt Security affected thereby. The Indenture also permits the Holders of at least a majority in aggregate principal amount of the Outstanding Debt Securities of each series to be affected, on behalf of the Holders of all Debt Securities of such series, to waive compliance by the Issuer with certain restrictive provisions of the Indenture. Any such consent or waiver by the Holder of this Global Security shall bind every future Holder of this Global Security and of any Global Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Global Security or such other Global Securities.

Subject to the terms of the Indenture, the Depositary may surrender this Global Security or any portion hereof in exchange, in whole or in part, for definitive Debt Securities, of this series in registered form and the Registrar, acting on behalf of the Issuer, shall authenticate and deliver in exchange for this Global Security or the portions thereof to be exchanged, an equal aggregate face amount of definitive Debt Securities (duly countersigned) in the numbers and in the names advised by the Depositary.

No repayment or payment of Amounts Due shall become due and payable or be paid after the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority if and to the extent such amounts have been reduced, converted, cancelled, amended or altered as a result of such exercise.

The exercise of the UK Bail-in Power by the Relevant UK Resolution Authority with respect to the Debt Securities shall not constitute an Event of Default or a Default.

“Amounts Due” means the principal amount of, and any accrued and unpaid interest, including any Additional Amounts, on, the Debt Securities. References to such amounts will include amounts that have become due and payable, but which have not been paid, prior to the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority.

“UK Bail-in Legislation” means Part I of the Banking Act and any other law or regulation applicable in the UK relating to the resolution of unsound or failing banks, investment firms or other financial institutions or their affiliates (otherwise than through liquidation, administration or other insolvency proceedings).

“UK Bail-in Power” means the powers under the UK Bail-in Legislation to cancel, transfer or dilute shares issued by a person that is a bank or investment firm or affiliate of a bank or investment firm, to cancel, write-down, transfer, reduce, modify or change the form of a liability of such a person or any contract or instrument under which that liability arises, to convert all or part of that liability into shares, securities or obligations of that person or any other person, to provide that any such contract or instrument is to have effect as if a right had been exercised under it or to suspend any obligation in respect of that liability.

A-15

“Relevant UK Resolution Authority” means any authority with the ability to exercise a UK Bail-in Power.

By its acquisition of the Debt Securities represented by this Global Security, each Holder (which, for these purposes, includes each beneficial owner of the Debt Securities): acknowledges, accepts, consents and agrees, notwithstanding any other term of the Debt Securities, the Indenture or any other agreements, arrangements or understandings between the Issuer and any Holder, to be bound by: (x) the effect of the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority that (without limitation) may include and result in any of the following, or some combination thereof: (i) the reduction of all, or a portion, of the Amounts Due; (ii) the conversion of all, or a portion, of the Amounts Due into the Issuer’s or another Person’s ordinary shares, other securities or other obligations (and the issue to, or conferral on, the Holder of such ordinary shares, other securities or other obligations), including by means of an amendment, modification or variation of the terms of the Debt Securities or the Indenture; (iii) the cancellation of the Debt Securities; and/or (iv) the amendment or alteration of the Maturity Date or amendment of the amount of interest payable on the Debt Securities, or the Interest Payment Dates, including by suspending payment for a temporary period; and (y) the variation of the terms of the Debt Securities or the Indenture, if necessary, to give effect to the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority.

By its acquisition of the Debt Securities, each Holder (which, for these purposes, includes each beneficial owner of the Debt Securities): (a) acknowledges and agrees that the exercise of the UK Bail-in Power by the Relevant UK Resolution Authority with respect to the Debt Securities shall not give rise to a Default or Event of Default for purposes of Section 315(b) (Notice of Default) and Section 315(c) (Duties of the Trustee in Case of Default) of the Trust Indenture Act; (b) to the extent permitted by the Trust Indenture Act, waives any and all claims, in law and/or in equity, against the Trustee for, agrees not to initiate a suit against the Trustee in respect of, and agrees that the Trustee shall not be liable for, any action that the Trustee takes, or abstains from taking, in either case in accordance with the exercise of (i) the UK Bail-in Power by the Relevant UK Resolution Authority with respect to the Debt Securities or (ii) the limited remedies available under the Indenture and the Debt Securities for a non-payment of principal and/or interest on the Debt Securities; and (c) acknowledges and agrees that, upon the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority, the Trustee shall not be required to take any further directions from Holders under Section 5.12 (Control by Holders of Debt Securities) of the Base Indenture; and that the Indenture shall not impose any duties upon the Trustee whatsoever with respect to the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority.

Notwithstanding clause (c) of the immediately preceding paragraph, if, following the completion of the exercise of the UK Bail-in Power by the Relevant UK Resolution Authority, the Debt Securities remain outstanding (for example, if the exercise of the UK Bail-in Power results in only a partial write-down of the principal of the Debt Securities), then the Trustee’s duties under the Indenture shall remain applicable with respect to the Debt Securities following such completion to the extent that the Issuer and the Trustee shall agree pursuant to a supplemental indenture or an amendment to the Indenture; provided, however, that notwithstanding the exercise of the UK Bail-in Power by the Relevant UK Resolution Authority, there shall at all times be a Trustee hereunder pursuant to, and in accordance with, Section 6.09 of the Base Indenture, and the resignation and/or removal of the Trustee and the appointment of a successor trustee shall continue to be governed by Sections 6.10 and 6.11 of the Base Indenture, respectively, including to the extent no additional supplemental indenture or amendment to the Indenture is agreed upon pursuant to the Indenture in the event the Debt Securities remain outstanding following the completion of the exercise of the UK Bail-in Power.

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In addition to the right to enter into supplemental indentures pursuant to Sections 9.01 and 9.02 of the Base Indenture, the Issuer and the Trustee may enter into one or more indentures supplemental to the Indenture to modify and amend the terms of the Indenture or the Debt Securities, without the further consent of any Holders, to the extent necessary to give effect to the exercise by the Relevant UK Resolution Authority of the UK Bail-in Power.

Upon the exercise of the UK Bail-in Power by the Relevant UK Resolution Authority with respect to the Debt Securities, the Issuer shall provide a written notice to the Holders through DTC as soon as practicable regarding such exercise of the UK Bail-in Power for purposes of notifying Holders and beneficial owners of the Debt Securities of such occurrence. The Issuer shall also deliver a copy of such notice to the Trustee for information purposes. Any delay or failure by the Issuer in delivering the notices referred to in this paragraph to the Holders or the Trustee shall not affect the validity or enforceability of the UK Bail-in Power.

It is the parties’ intention that the Issuer’s obligations to indemnify the Trustee in accordance with Section 6.07 of the Base Indenture shall survive any exercise of the UK Bail-in Power by the Relevant UK Resolution Authority.

Upon the exercise of any UK Bail-in Power by the Relevant UK Resolution Authority that results in the reduction or cancellation of all, or a portion, of the principal amount of this Global Security and/or the conversion of all, or a portion, of the principal amount of this Global Security into shares or other securities or other obligations of the Issuer or another person, the portion of the principal amount hereof so reduced, cancelled and/or converted shall be endorsed by the Registrar on Schedule B hereto. The principal amount hereof shall be reduced for all purposes by the amount so reduced, cancelled and/or converted.

Subject to applicable law, claims in respect of the Debt Security may not be set off, or be the subject of a counterclaim, by any Holder or by the Trustee in respect of any claims of such Holders to payment of any principal, premium or interest in respect of the Debt Securities or the Indenture, against or in respect of any of its obligations to the Issuer, and every Holder and the Trustee in respect of any claims of such Holders waives, and shall be treated for all purposes as if it had waived, any right that it might otherwise have to set-off, or to raise by way of counterclaim any of its claims in respect of the Debt Securities or the Indenture, against or in respect of any of its obligations to the Issuer. Notwithstanding the preceding sentence, if any of the rights and claims of any Holder are discharged by set-off, such Holder will immediately pay an amount equal to the amount of such discharge to the Issuer or, if applicable, the liquidator or trustee or receiver in the Issuer’s bankruptcy and, until such time as payment is made, will hold a sum equal to such amount in trust for the Issuer or, if applicable, the liquidator or trustee or receiver in the Issuer’s bankruptcy. Accordingly, such discharge will be deemed not to have taken place.

ANY HOLDER OR BENEFICIAL OWNER OF THE DEBT SECURITIES THAT ACQUIRES THE DEBT SECURITIES IN THE SECONDARY MARKET AND ANY SUCCESSORS, ASSIGNS, HEIRS, EXECUTORS, ADMINISTRATORS, TRUSTEES IN BANKRUPTCY AND LEGAL REPRESENTATIVES OF ANY HOLDER OR BENEFICIAL OWNER OF THE DEBT SECURITIES SHALL BE DEEMED TO ACKNOWLEDGE, AGREE TO BE BOUND BY AND CONSENT TO THE SAME PROVISIONS SPECIFIED HEREIN TO THE SAME EXTENT AS THE HOLDERS OR BENEFICIAL OWNERS OF THE DEBT SECURITIES THAT ACQUIRE THE DEBT SECURITIES UPON THEIR INITIAL ISSUANCE, INCLUDING, WITHOUT LIMITATION, WITH RESPECT TO THE ACKNOWLEDGEMENT AND AGREEMENT TO BE BOUND BY AND CONSENT TO THE TERMS OF THE DEBT SECURITIES RELATED TO THE UK BAIL-IN POWER, THE BENCHMARK AND THE LIMITED REMEDIES AVAILABLE UNDER THE INDENTURE AND THE DEBT SECURITIES FOR A NON-PAYMENT OF PRINCIPAL AND/OR INTEREST ON THE DEBT SECURITIES.

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The Indenture and the Debt Securities may be amended and modified as provided in the Indenture.

All terms used in this Global Security and not otherwise defined shall have the meanings ascribed to them in the Indenture.

The Ninth Supplemental Indenture and the Debt Securities shall be governed by, and construed in accordance with, the laws of the State of New York, except that (i) the authorization and execution by the Issuer of the Indenture and the Debt Securities (in addition to the laws of the State of New York relevant to execution) and (ii) Article Twelve of the Base Indenture (and the corresponding provisions in the Debt Securities) shall be governed by, and construed in accordance with, the laws of England and Wales.

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SCHEDULE A

EXCHANGES FOR DEFINITIVE DEBT SECURITIES

The following exchanges of parts of this Global Security for Definitive Debt Securities have been made:

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SCHEDULE B

REDUCTION, CANCELLATION OR CONVERSION OF DEBT SECURITIES UPON

THE EXERCISE OF ANY UK BAIL-IN POWER BY THE RELEVANT UK RESOLUTION AUTHORITY

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Exhibit 5.1

November 18, 2024

HSBC Holdings plc

8 Canada Square

London E14 5HQ

Ladies and Gentlemen:

We have acted as special U.S. counsel to HSBC Holdings plc, a public limited company incorporated under the laws of England and Wales (the “Company”), in connection with the Company’s offering pursuant to a registration statement on Form F-3 (No. 333-277306) of $1,750,000,000 5.874% Fixed Rate/Floating Rate Subordinated Unsecured Notes due 2035 (the “Notes”), to be issued under an indenture dated as of March 12, 2014 (as amended and supplemented through the date hereof, the “Base Indenture”), among the Company, The Bank of New York Mellon, as trustee (the “Trustee”), and HSBC Bank USA, National Association (“HSBC Bank USA”), as paying agent, registrar and exchange rate agent, as amended and supplemented by an eighth supplemental indenture (the “Eighth Supplemental Indenture”) and a ninth supplemental indenture (the “Ninth Supplemental Indenture”), each dated as of November 18, 2024 (the Eighth Supplemental Indenture and Ninth Supplemental Indenture, collectively, the “Supplemental Indentures” and, together with the Base Indenture, the “Indenture”), among the Company, the Trustee and HSBC Bank USA, as paying agent, registrar and, only with respect to the Ninth Supplemental Indenture, calculation agent. Such registration statement, as amended as of its most recent effective date (November 12, 2024), insofar as it relates to the Notes (as determined for purposes of Rule 430B(f)(2) under the Securities Act of 1933, as amended (the “Securities Act”)), including the documents incorporated by reference therein but excluding Exhibits 25.1, 25.2, 25.3 and 25.4, is herein called the “Registration Statement.”

In arriving at the opinion expressed below, we have reviewed the following documents:

HSBC Holdings plc, Page 2

In addition, we have made such investigations of law as we have deemed appropriate as a basis for the opinion expressed below.

In rendering the opinion expressed below, we have assumed the authenticity of all documents submitted to us as originals and the conformity to the originals of all documents submitted to us as copies. In addition, we have assumed and have not verified the accuracy as to factual matters of each document we have reviewed.

Based on the foregoing, and subject to the further assumptions and qualifications set forth below, it is our opinion that the Global Notes are valid, binding and enforceable obligations of the Company, entitled to the benefits of the Indenture; provided that we express no opinion as to the validity, binding effect or enforceability of Section 2.08 of the Eighth Supplemental Indenture (and the corresponding provision in the Global Notes) and Article 12 of the Base Indenture (and the corresponding provision in the Global Notes), which are expressed to be governed by the laws of England and Wales.

Insofar as the foregoing opinion relates to the validity, binding effect or enforceability of any agreement or obligation of the Company, (a) we have assumed that the Company and each other party to such agreement or obligation has satisfied those legal requirements that are applicable to it to the extent necessary to make such agreement or obligation enforceable against it (except that no such assumption is made as to the Company regarding matters of the federal law of the United States of America or the law of the State of New York that in our experience normally would be applicable to general business entities with respect to such agreement or obligation), (b) such opinion is subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally and to general principles of equity, (c) we express no opinion with respect to the effect of any mandatory choice of law rules and (d) such opinion is subject to the effect of judicial application of foreign laws or foreign governmental actions affecting creditors’ rights.

We express no opinion as to the subject matter jurisdiction of any United States federal court to adjudicate any action relating to the Notes where jurisdiction based on diversity of citizenship under 28 U.S.C. § 1332 does not exist.

The foregoing opinion is limited to the federal law of the United States of America and the law of the State of New York. With respect to matters governed by the laws of England and Wales, we have relied on our opinion dated November 18, 2024, as English counsel to the Company, which has been filed as Exhibit 5.2 to the Company’s Form 6-K dated November 18, 2024.

We hereby consent to the incorporation by reference of this opinion in the Registration Statement and the use of our name in the prospectus constituting a part of the Registration Statement and the prospectus supplement dated November 12, 2024 related to the Notes under the heading “Legal Opinions.” In giving such consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Securities and Exchange Commission thereunder.

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The opinion expressed herein is rendered on and as of the date hereof, and we assume no obligation to advise you or any other person, or to make any investigations, as to any legal developments or factual matters arising subsequent to the date hereof that might affect the opinion expressed herein.

Exhibit 5.2

November 18, 2024

HSBC Holdings plc

8 Canada Square

London E14 5HQ

Ladies and Gentlemen:

We have acted as special English counsel to HSBC Holdings plc, a public limited company incorporated under the laws of England and Wales (the “Company”), in connection with the Company’s offering pursuant to a registration statement on Form F-3 (No. 333-277306) of $1,750,000,000 5.874% Fixed Rate/Floating Rate Subordinated Unsecured Notes due 2035 (the “Notes”), to be issued under an indenture dated as of March 12, 2014 (as amended and supplemented through the date hereof, the “Base Indenture”), among the Company, The Bank of New York Mellon, as trustee (the “Trustee”), and HSBC Bank USA, National Association (“HSBC Bank USA”), as paying agent, registrar and exchange rate agent, as amended and supplemented by an eighth supplemental indenture (the “Eighth Supplemental Indenture”) and a ninth supplemental indenture (the “Ninth Supplemental Indenture”), each dated as of November 18, 2024 (the Eighth Supplemental Indenture and Ninth Supplemental Indenture, collectively, the “Supplemental Indentures” and, together with the Base Indenture, the “Indenture”), among the Company, the Trustee and HSBC Bank USA as paying agent, registrar and, only with respect to the Ninth Supplemental Indenture, calculation agent. Such registration statement, as amended as of its most recent effective date (November 12, 2024), insofar as it relates to the Notes (as determined for purposes of Rule 430B(f)(2) under the Securities Act of 1933, as amended (the “Securities Act”)), including the documents incorporated by reference therein but excluding Exhibits 25.1, 25.2, 25.3 and 25.4, is herein called the “Registration Statement”.

In arriving at the opinions expressed below, we have reviewed the following documents:

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In this opinion letter, the Terms Agreement, the Indenture and the Global Notes are referred to collectively as the “Transaction Documents” or each individually as a “Transaction Document”.

In rendering the opinions expressed below we have assumed and not verified:

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Based on the foregoing, and subject to the further qualifications and limitations set forth below, it is our opinion that:

1. The Company has been duly incorporated in and registered as a public limited company under the laws of England and Wales. A search of the records of the Registrar of Companies as made public through the www.companieshouse.gov.uk website at 10:50 a.m. GMT on November 18, 2024 and an oral enquiry made to the Central Registry of Winding up Petitions at the Insolvency and Companies List at approximately 11:03 a.m. GMT on November 18, 2024 revealed no petition, order or resolution for the winding up of the Company and no petition for, and no notice of appointment of, a receiver or administrator, provided that:

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2. The Company possessed, as at the time of execution, the corporate power to enter into and perform its obligations under the Base Indenture and the Company possesses the corporate power to enter into and perform its obligations under the Supplemental Indentures and the Global Notes.

3. The Base Indenture and the Supplemental Indentures have each been duly authorised, executed and delivered by the Company.

4. The Global Notes have been duly authorised, issued and executed by the Company and, when delivered in accordance with the Terms Agreement, the obligations assumed by the Company under Section 2.08 (Subordination of Debt Securities) of the Eighth Supplemental Indenture (and the corresponding provision in the Global Notes) and Article 12 (Subordination of Debt Securities) of the Base Indenture (and the corresponding provision in the Global Notes), constitute valid, binding and enforceable obligations of the Company.

The expression “enforceable” as used in paragraph 4 above means that the obligations assumed by the relevant party under the relevant document are of a type which English courts enforce. The foregoing does not mean that those obligations will necessarily be enforced in all circumstances in accordance with their terms. In particular, but without limitation:

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The opinions set out above are given on the basis of, and are limited to, the laws of England and Wales in force as at the date of this opinion letter (taking into account the effect of the Agreement on the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the EU and the European Atomic Energy Community and the EUWA), as currently applied by the courts in England and Wales, and are given on the basis that this opinion letter and any non-contractual obligations arising out of or in connection with it will be governed by and construed in accordance with the laws of England and Wales. On 31 January 2020, the United Kingdom ceased to be a member of the EU. By virtue of Sections 1A and 1B of the EUWA, EU law continued to be applicable in the United Kingdom for the duration of the implementation period set out in Section 1A(6) of the EUWA (the “Transition Period”). After the Transition Period, pursuant to Sections 2 to 4 of the EUWA, certain EU

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laws in effect immediately before the end of the Transition Period form part of English law. However, EU law otherwise ceased to be applicable in the United Kingdom and thus does not form part of English law on and after 1 January 2021. The Retained EU Law (Revocation and Reform) Act 2023 came into effect on 1 January 2024 and, among other amendments, repealed Section 4 of the EUWA and further restricted the scope of retained EU law in United Kingdom domestic law (now renamed ‘assimilated law’). We express no opinion in this letter on the effect of EU law in the United Kingdom or on EU law itself.

We hereby consent to the incorporation by reference of this opinion in the Registration Statement and the use of our name in the prospectus constituting a part of the Registration Statement and the prospectus supplement dated November 12, 2024 related to the Notes under the heading “Legal Opinions”. In giving such consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Securities and Exchange Commission thereunder.

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We assume no obligation to advise you or any other person, or to make any investigations, as to any legal developments or factual matters arising subsequent to the date hereof that might affect the opinions expressed herein.