Contract

SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 17, 2017 among American Axle & Manufacturing, Inc., a Delaware corporation (the “Company”), the entities listed on Schedule A hereto (the “Guaranteeing Subsidiaries”), Metaldyne Performance Group Inc. (“MPG”), a wholly-owned subsidiary of American Axle & Manufacturing Holdings, Inc., a Delaware corporation (“Holdings”), Holdings, and the other Subsidiary Guarantors (as defined in the Indenture referred to herein; the Guaranteeing Subsidiaries, MPG and the Subsidiary Guarantors, collectively, the “Guarantors”) and U.S. Bank National Association, as trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Company has heretofore executed and delivered to the Trustee an indenture, dated as of November 3, 2011, as amended and supplemented by the First Supplemental Indenture, dated as of March 23, 2017 (and as may be further amended and supplemented from time to time, the “Indenture”), providing for the issuance from time to time of its unsecured senior or subordinated debentures, notes or other evidences of indebtedness and guarantees thereof;

WHEREAS, the Company has issued under the Indenture its 5.125% Senior Notes Due 2019, 7.75% Senior Notes Due 2019, 6.25% Senior Notes Due 2021, 6.625% Senior Notes Due 2022, 6.25% Senior Notes due 2025 and 6.50% Senior Notes Due 2027 (collectively, the “Notes”);

WHEREAS, the Indenture and the terms of the Notes provide that under certain circumstances certain subsidiaries of Holdings and/or the Company may execute and deliver to the Trustee a supplemental indenture pursuant to which such subsidiary will guarantee the Notes on the terms and conditions set forth in Article Seventeen of the Indenture and in the Notes (the “Note Guarantee”), and the Guaranteeing Subsidiaries hereby are providing such a Note Guarantee; and

WHEREAS, pursuant to Section 901 of the Indenture, the parties hereto are authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

1. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. AGREEMENT TO GUARANTEE. Each of the Guaranteeing Subsidiaries hereby agrees to provide a Guarantee on the terms and subject to the conditions set forth in the Note Guarantee.

3. NO RECOURSE AGAINST OTHERS. No director, officer, employee or stockholder of the Company, Holdings or any of the Guarantors will have any liability for any of the Company’s, Holdings’ or such Guarantor’s obligations under the Notes, the Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes and the Note Guarantees.

4. GOVERNING LAW. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK. THIS SUPPLEMENTAL INDENTURE IS SUBJECT TO THE PROVISIONS OF THE TRUST INDENTURE ACT THAT ARE REQUIRED TO BE PART OF THIS SUPPLEMENTAL INDENTURE AND SHALL, TO THE EXTENT APPLICABLE, BE GOVERNED BY SUCH PROVISIONS

5. COUNTERPARTS. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

6. EFFECT OF HEADINGS. The Section headings herein are for convenience only and shall not affect the construction hereof.

7. THE TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiaries and the Company.

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

	THE GUARANTEEING SUBSIDIARIES:
	MSP INDUSTRIES CORPORATION MPG HOLDCO I INC. METALDYNE BSM, LLC METALDYNE M&A BLUFFTON, LLC METALDYNE POWERTRAIN COMPONENTS, INC. METALDYNE SINTERED XXXXXXX, LLC METALDYNE SINTERFORGED PRODUCTS, LLC PUNCHCRAFT MACHINING AND TOOLING, LLC HHI FORMTECH, LLC XXXXXXXX INDUSTRIES, LLC IMPACT FORGE GROUP, LLC ASP HHI HOLDINGS, INC. ASP HHI INTERMEDIATE HOLDINGS, INC. ASP HHI INTERMEDIATE HOLDINGS II, INC. ASP HHI ACQUISITION CO., INC. FORGING HOLDINGS, LLC HEPHAESTUS HOLDINGS, LLC HHI FORMTECH HOLDINGS, LLC HHI FORGING, LLC GEARING HOLDINGS, LLC CLOYES GEAR HOLDINGS, LLC XXXXXXXX HOLDINGS, LLC IMPACT FORGE HOLDINGS, LLC ASP MD HOLDINGS, INC. ASP MD INTERMEDIATE HOLDINGS, INC. ASP MD INTERMEDIATE HOLDINGS II, INC. MD INVESTORS CORPORATION METALDYNE, LLC GEAR DESIGN AND MANUFACTURING, LLC GREDE WISCONSIN SUBSIDIARIES LLC CLOYES GEAR AND PRODUCTS, INC. GREDE LLC GREDE HOLDINGS LLC ASP GREDE INTERMEDIATE HOLDINGS LLC GSC RIII - GREDE LLC SHOP IV SUBSIDIARY INVESTMENT (GREDE), LLC HHI HOLDINGS, LLC GREDE II LLC ASP GREDE ACQUISITIONCO LLC ROCHESTER MANUFACTURING, LLC THE MESH COMPANY, LLC
	By:	/s/ Xxxxxxx Xxxxx
		Name:	Xxxxxxx Xxxxx
		Title:	Authorized Signatory
	AMERICAN AXLE & MANUFACTURING, INC.
	By:	/s/ Xxxxxxx Xxxxx
		Name:	Xxxxxxx Xxxxx
		Title:	Treasurer

Signature Page to Supplemental Indenture

	AMERICAN AXLE & MANUFACTURING HOLDINGS, INC.
	By:	/s/ Xxxxxxx Xxxxx
		Name:	Xxxxxxx Xxxxx
		Title:	Treasurer
	AAM INTERNATIONAL HOLDINGS, INC. AUBURN HILLS MANUFACTURING, INC. (F/K/A DIETRONIK, INC.) OXFORD FORGE, INC. MSP INDUSTRIES CORPORATION COLFOR MANUFACTURING, INC. ACCUGEAR, INC. METALDYNE PERFORMANCE GROUP INC.
	By:	/s/ Xxxxxxx Xxxxx
		Name:	Xxxxxxx Xxxxx
		Title:	Treasurer
	U.S. BANK NATIONAL ASSOCIATION, as Trustee
	By:	/s/ Xxxxx Xxxxxxxx
		Authorized Signatory

Signature Page to Supplemental Indenture

SCHEDULE A
                  

GUARANTEEING SUBSIDIARIES

MSP Industries Corporation

MPG Holdco I Inc.

Metaldyne BSM, LLC

Metaldyne M&A Bluffton, LLC

Metaldyne Powertrain Components, Inc.

Metaldyne Sintered Xxxxxxx, LLC

Metaldyne SinterForged Products, LLC

Punchcraft Machining and Tooling, LLC

HHI FormTech, LLC

Xxxxxxxx Industries, LLC

Impact Forge Group, LLC

ASP HHI Holdings, Inc.

ASP HHI Intermediate Holdings, Inc.

ASP HHI Intermediate Holdings II, Inc.

ASP HHI Acquisition Co., Inc.

Forging Holdings, LLC

Hephaestus Holdings, LLC

HHI FormTech Holdings, LLC

HHI Forging, LLC

Gearing Holdings, LLC

Cloyes Gear Holdings, LLC

Xxxxxxxx Holdings, LLC

Impact Forge Holdings, LLC

ASP MD Holdings, Inc.

ASP MD Intermediate Holdings, Inc.

ASP MD Intermediate Holdings II, Inc.

MD Investors Corporation

Metaldyne, LLC

Gear Design and Manufacturing, LLC

Grede Wisconsin Subsidiaries LLC

Cloyes Gear and Products, Inc.

Grede LLC

Grede Holdings LLC

ASP Grede Intermediate Holdings LLC

GSC RIII - Grede LLC

Shop IV Subsidiary Investment (Grede), LLC

HHI Holdings, LLC

Grede II LLC

ASP Grede AcquisitionCo LLC

Rochester Manufacturing, LLC

The Mesh Company, LLC