Rating Event means a change by any Rating Agency to the Equity Credit criteria for securities
such as the Series H Preferred Units, as such criteria are in effect as of the original issue date of the Series H Preferred Units (the Current Criteria), which change results in (i) any shortening of the length of time for which
the Current Criteria are scheduled to be in effect with respect to the Series H Preferred Units, or (ii) a lower Equity Credit being given to the Series H Preferred Units than the Equity Credit that would have been assigned to the Series H
Preferred Units by such Rating Agency pursuant to its Current Criteria.
Redemption Period means any period from and including the
August 15 immediately preceding a Reset Date through and including such Reset Date.
Reset Date means the First Reset Date and each date
falling on the fifth anniversary of the preceding Reset Date.
Reset Distribution Determination Date means, in respect of any Reset Period,
the day falling two Business Days prior to the beginning of such Reset Period.
Reset Period means the period from and including the First
Reset Date to, but excluding, the next following Reset Date and thereafter each period from and including each Reset Date to, but excluding, the next following Reset Date.
Addition to Selling Restrictions beginning on page S-43 in the Preliminary Prospectus Supplement dated June 1,
2021. related to this offering:
In addition to the selling restrictions for prospective investors beginning on page
S-43 in the Preliminary Prospectus Supplement dated June 1, 2021, the following selling restriction also applies to the Series H Preferred Units:
Notice to Prospective Investors in Switzerland
This
prospectus supplement is being communicated in Switzerland to a small number of selected investors only. Each copy of this prospectus supplement is addressed to a specifically named recipient and may not be copied, reproduced, distributed or passed
on to third parties. The Series H Preferred Units are not being offered to the public in Switzerland, and neither this prospectus supplement, nor any other offering materials relating to the Series H Preferred Units may be distributed in connection
with any such public offering. We have not been registered with the Swiss Financial Market Supervisory Authority FINMA as a foreign collective investment scheme pursuant to Article 120 of the Collective Investment Schemes Act of June 23, 2006
(CISA). Accordingly, the Series H Preferred Units may not be offered to the public in or from Switzerland, and neither this prospectus supplement, nor any other offering materials relating to the Series H Preferred Units may be made
available through a public offering in or from Switzerland. The Series H Preferred Units may only be offered and this prospectus supplement may only be distributed in or from Switzerland by way of private placement exclusively to qualified investors
(as this term is defined in the CISA and its implementing ordinance).
General
All information (including financial information) presented in the preliminary prospectus supplement filed by the Issuer on June 1, 2021 for this Series H
Preferred Units offering (the Preferred Units Preliminary Prospectus Supplement) is deemed to have changed to the extent affected by the changes described herein.
This communication is intended for the sole use of the person to whom it is provided by us. This communication does not constitute an offer to sell the Series
H Preferred Units and is not soliciting an offer to buy the Series H Preferred Units in any jurisdiction where the offer or sale is not permitted.
The
Issuer has filed a registration statement (including a base prospectus) and the Preferred Units Preliminary Prospectus Supplement with the U.S. Securities and Exchange Commission (SEC) for the offering to which this communication
relates. Before you invest, you should read the prospectus in that registration statement and the Preferred Units Preliminary Prospectus Supplement and any other documents the issuer has filed with the SEC for more complete information about the
issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus and
prospectus supplement if you request it by contacting: J.P. Morgan Securities LLC at 1-212-834-4533, Mizuho Securities USA LLC at
1-866-271-7403, PNC Capital Markets LLC at 1-855-881-0697 or Truist Securities, Inc. at 1-800-685-4786.
ANY DISCLAIMERS OR OTHER NOTICES THAT MAY APPEAR BELOW ARE NOT APPLICABLE TO THIS COMMUNICATION AND SHOULD BE DISREGARDED. SUCH DISCLAIMERS OR OTHER NOTICES
WERE AUTOMATICALLY GENERATED AS A RESULT OF THIS COMMUNICATION BEING SENT VIA BLOOMBERG OR ANOTHER EMAIL SYSTEM.