MPG Metaldyne Performance Grp. Inc. (delisted)

As filed with the Securities and Exchange Commission on April 19, 2017

Registration No. 333-209036

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

Post-Effective

Amendment No. 1

to

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Metaldyne Performance Group Inc.

MPG Holdco I Inc.

(Exact Name of Registrants as Specified in Its Charter)

(See table of additional registrants)

One Dauch Drive

Detroit, Michigan 48211

(313) 758-2000

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrants’ Principal Executive Offices)

David E. Barnes

American Axle & Manufacturing, Inc.

One Dauch Drive

Detroit, Michigan 48211

(313) 758-2000

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent For Service)

Copy to:

Lisa L. Jacobs, Esq.

Shearman & Sterling LLP

599 Lexington Avenue

New York, New York 10022

(212) 848-4000

Approximate date of commencement of proposed sale to the public : From time to time after this registration statement becomes effective.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. o

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. o

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. o

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. o

The address, including zip code, and telephone number, including area code, of each Additional Registrant’s principal executive offices is: c/o One Dauch Drive, Detroit, Michigan 48211, (313) 758-2000.

The name, address, including zip code and telephone number, including area code, of agent for service for each of the Additional Registrants is: David E. Barnes, One Dauch Drive, Detroit, Michigan 48211, (313) 758-2000.

DEREGISTRATION OF SECURITIES

This Post-Effective Amendment No. 1 relates to the Registration Statement on Form S-3 (Registration No. 333-209036) (the “Registration Statement”) filed by Metaldyne Performance Group Inc. and each of the additional registrants set forth in the “Table of Additional Registrants” below (together, the “Registrants”) on January 19, 2016 with the Securities and Exchange Commission (the “SEC”) registering the offer and sale of up to $300,000,000 principal amount of Common Stock, Preferred Stock, Debt Securities, Warrants, Units, and Guarantees of Debt Securities, and up to 53,187,376 shares of Common Stock by certain selling stockholders, which became effective on February 2, 2016.

The Registrants hereby file this Post-Effective Amendment No. 1 to deregister all remaining Common Stock, Preferred Stock, Debt Securities, Warrants, Units, and Guarantees of Debt Securities under the Registration Statement, such deregistration being in accordance with an undertaking made by the Registrants in the Registration Statement to remove from registration, by means of a post-effective amendment, any of the securities which remain unsold at the termination of the offering.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Post-Effective Amendment No. 1 to the registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of Metaldyne Performance Group Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the date indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of MPG Holdco I Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers and managers of ASP Grede Intermediate Holdings LLC, as sole member of ASP Grede AcquisitionCo LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned managers and officers of ASP Grede Intermediate Holdings LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of ASP HHI Acquisition Co., Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned directors and officers of ASP HHI Holdings, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of ASP HHI Intermediate Holdings, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of ASP HHI Intermediate Holdings II, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of ASP MD Holdings, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned directors and officers of ASP MD Intermediate Holdings, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned directors and officers of ASP MD Intermediate Holdings II, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers and managers of HHI Holdings, LLC, as sole member of Bearing Holdings, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned managers and officers of Citation Lost Foam Patterns, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned director and officers of Cloyes Acquisition Company, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned directors and officers of Cloyes Gear and Products, Inc., hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of Gearing Holdings, LLC, as sole member of Cloyes Gear Holdings, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of HHI Holdings, LLC, as sole member of Forging Holdings, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned officers of HHI Holdings, LLC, as sole member of Gearing Holdings, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned officers of ASP Grede AcquisitionCo LLC, as sole member of Grede Holdings LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned officers of Grede Holdings LLC, as sole member of Grede LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned officers of Grede Holdings LLC, as sole member of Grede II LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

* * * *

POWER OF ATTORNEY

The undersigned officers of Grede II LLC, as sole member of Grede Machining LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of Grede II LLC, as sole member of Grede Wisconsin Subsidiaries LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of ASP Grede AcquisitionCo LLC, as sole member of GSC RIII-Grede LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of Forging Holdings, LLC, as sole member of Hephaestus Holdings, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Post-Effective Amendment No. 1 to the registration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Detroit, State of Michigan, on April 19, 2017.

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POWER OF ATTORNEY

The undersigned officers of Hephaestus Holdings, LLC, as sole member of HHI Forging, LLC, hereby appoint Christopher J. May, as attorney-in-fact for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act, any and all amendments (including post-effective amendments) and exhibits to this Post-effective amendment No. 1 to the registration statement on Form S-3 and any and all applications and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on has been signed by the following persons in the capacities and on the dates indicated.