ELEVENTH SUPPLEMENTAL INDENTURE DATED AS OF JUNE 15, 2012 To INDENTURE dated as of June 15, 2007 among MOLSON COORS BREWING COMPANY, as Issuer THE GUARANTORS NAMED THEREIN, as Guarantors and DEUTSCHE BANK TRUST COMPANY AMERICAS, as Trustee

THIS TENTH SUPPLEMENTAL INDENTURE, dated as of June 15, 2012 (this “Supplemental Indenture”), to the Indenture dated as of June 15, 2007, as supplemented by the First Supplemental Indenture thereto dated as of June 15, 2007, the Second Supplemental Indenture thereto dated as of January 31, 2008, the Third Supplemental Indenture thereto dated as of February 1, 2008, the Fourth Supplemental Indenture dated as of May 23, 2008, the Fifth Supplemental Indenture thereto dated as of June 27, 2008, the Sixth Supplemental Indenture thereto dated as of June 30, 2008, the Seventh Supplemental Indenture thereto dated as of December 25, 2010, the Eighth Supplemental Indenture thereto dated as of March 8, 2011, the Ninth Supplemental Indenture thereto dated as of November 11, 2011 and the Tenth Supplemental Indenture thereto dated as of May 3, 2012 (collectively, the “Original Indenture” and, together with this Supplemental Indenture, the “Indenture”), is among Molson Coors Brewing Company, a Delaware corporation (the “Company”), Coors Brewing Company, a Colorado corporation, Molson Coors Capital Finance ULC, a Nova Scotia unlimited liability company, Molson Coors International LP, a Delaware limited partnership, CBC Holdco, Inc., a Colorado corporation, Molson Coors International General, ULC, a Nova Scotia unlimited liability company, Coors International Holdco, ULC, a Nova Scotia unlimited liability company, Molson Coors Callco ULC, a Nova Scotia unlimited liability company, Molson Canada 2005, a Canadian partnership, MC Holding Company LLC, a Colorado limited liability company, CBC Holdco 2, Inc., a Colorado corporation, Newco3, Inc., a Colorado corporation, Molson Coors Brewing Company (UK) Limited, an English private limited company, Molson Coors Holdings Limited, an English private limited company, Golden Acquisition, an English private unlimited company and Molson Coors Holdco, Inc. (collectively, the “Guarantors”), and Deutsche Bank Trust Company Americas, a New York banking corporation, as Trustee (the “Trustee”).

WHEREAS, the Company, the Guarantors and the Trustee are authorized to enter into this Supplemental Indenture pursuant to Section 9.01 of the Original Indenture.

NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH:

That the parties hereto hereby agree as follows:

IN WITNESS WHEREOF, the parties have caused this Supplemental Indenture to be duly executed by their respective officers thereunto duly authorized as of the date first above written.