**Exhibit 4.5**

**FOURTH SUPPLEMENTAL INDENTURE**

This Fourth Supplemental Indenture (this “Fourth SupplementalIndenture”), dated as of December 31, 2006, is made by and among EDGEN MURRAY CORPORATION, a Nevada corporation formerly known as Edgen Corporation (the “Company”) and The Bank of New York, as trustee (in suchcapacity, the “Trustee”) and collateral agent (in such capacity, the “Collateral Agent”) under the Indenture referred to below. 

W I T N E S S E T H 

WHEREAS, the Company (prior to the Merger and Name Change (as defined below),“Edgen Corporation”), Edgen Alloy Products Group, L.L.C., a Louisiana limited liability company (“Edgen Alloy”), Edgen Carbon Products Group, L.L.C., a Louisiana limited liability company (“EdgenCarbon”), Edgen Louisiana Corporation, a Louisiana corporation (“Edgen Louisiana” and, together with Edgen Alloy and Edgen Carbon, the “Merged Guarantors”), the Trustee and the Collateral Agent arecurrently parties to an indenture, dated as of February 1, 2005 (as supplemented by the Supplemental Indenture dated February 1, 2005, the Second Supplemental Indenture dated December 16, 2005 and the Third Supplemental Indenturedated October 5, 2006, the “Indenture”); 

WHEREAS, the Merged Guarantors have merged with and into the Company (the“Merger”); 

WHEREAS, the Company has changed its name from “Edgen Corporation” to “EDGEN MURRAYCORPORATION” (the “Name Change”); and 

WHEREAS, pursuant to clause (B) of the fourth paragraph ofSection 5.01 of the Indenture, the Company desires to confirm to the Trustee and Collateral Agent its assumption of the due and punctual payment of the principal of, and premium, if any, interest and Additional Interest, if any, on all of theNotes and the performance of every covenant of the Notes, the Indenture and the Registration Rights Agreement on the part of Edgen Corporation to be performed or observed thereunder and all obligations of Edgen Corporation under the CollateralAgreements, and all of the obligations of the Merged Guarantors under the Guarantee, the performance of every covenant of the Merged Guarantors under the Guarantee, the Indenture and the Registration Rights Agreement and all obligations of theMerged Guarantors under the Collateral Agreements. 

NOW THEREFORE, in consideration of the foregoing and for other good and valuableconsideration, the receipt of which is hereby acknowledged, the Company, the Trustee and the Collateral Agent mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 

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

2. Pursuant to clause (B) of the fourth paragraph of Section 5.01 of the Indenture, the Companyhereby assumes the due and punctual payment of the principal of, and premium, if any, interest and Additional Interest, if any, on all of the Notes and the performance of every covenant of the Notes, the Indenture and the Registration RightsAgreement on the part of Edgen Corporation to be performed or observed thereunder and all obligations of the Edgen Corporation under the Collateral Agreements. 

3. Pursuant to clause (B) of the fourth paragraph of Section 5.01 of the Indenture, the Company hereby assumes all of the obligations of the Merged Guarantors under the Guarantee, the performance of everycovenant of the Merged Guarantors under the Guarantee and the performance of every covenant of the Guarantee, the Indenture and the Registration Rights Agreement and all obligations of the Merged Guarantors under the Collateral Agreements.

4. Other than as specifically provided herein, this Fourth Supplemental Indenture shall not operate as a waiver or amendment of any right,power or privilege of any Holder, the Trustee or the Collateral Agent under the Indenture or any other Indenture Document or of any other term or condition of the Indenture or any other Indenture Document. All references to the Indenture or theSecurity Agreement in any Indenture Document from and after the date hereof shall be deemed to refer to the Indenture or the Security Agreement, in each case, as amended hereby. 

5. GOVERNING LAW. THIS FOURTH SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, ASAPPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS. EACH OF THE PARTIES HERETO AGREES TO SUBMIT TO THE JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK IN ANY ACTION ORPROCEEDING ARISING OUT OF OR RELATING TO THIS FOURTH SUPPLEMENTAL INDENTURE. 

6. Counterparts. The parties may sign any number ofcopies of this Fourth Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 

7. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof. 

8. Trustee Not Responsible for Recitals. The recitals contained herein shall be taken as the statements of the Company and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to thevalidity or sufficiency of this Fourth Supplemental Indenture. 

 

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

 
EDGEN MURRAY CORPORATIONBy: /s/ David L. Laxton, III Name: David L. Laxton, III Title:   Secretary and TreasurerTHE BANK OF NEW YORK, as Trustee and Collateral AgentBy: /s/ Geovanni Barris Name: Geovanni Barris Title:   Vice President
 

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