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  Exhibit 4.9    
    

 SIXTH SUPPLEMENTAL INDENTURE  

 DATED AS OF June 30, 2008  

 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  

        SIXTH
SUPPLEMENTAL INDENTURE, dated as of June 30, 2008 (this "Sixth 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, and the Fifth Supplemental Indenture thereto dated as of
June 27, 2008 (the "Original Indenture" and, together with this Sixth Supplemental Indenture, the
"Indenture"), 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, Coors Distributing Company, a Colorado corporation, Coors International Market
Development, L.L.L.P., a Colorado limited liability limited partnership, Coors Global Properties, Inc., a Colorado corporation, Molson Coors International LP, a Delaware limited
partnership, CBC Holdco, Inc., a Colorado corporation, MCBC International 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 (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 Sixth Supplemental Indenture pursuant to Section 9.01 of the Original Indenture; 

        WHEREAS,
pursuant to Section 4.05 of the Original Indenture, the Company shall cause each of its Subsidiaries that guarantees any Senior Indebtedness of the Company after the
Issue Date to, at the same time, execute and deliver to the Trustee a Guaranty Agreement pursuant to which such Subsidiary will guarantee payment of the Securities on the same terms and conditions as
those set forth in Article 10 of the Original Indenture; and 

        WHEREAS,
on June 30, 2008, Molson Canada 2005, a Subsidiary of the Company, agreed to guarantee the obligations under the Credit Agreement dated as of March 2, 2005 among
the Company, the Parent, Molson Canada 2005, Molson Inc., Molson Coors Canada Inc. and Coors Brewers Limited, the Lenders party thereto, Wachovia Bank, National Association, as
Administrative Agent, Issuing Bank and Swingline Lender, and Bank of Montreal, as Canadian Administrative Agent, Issuing Bank and Swingline Lender, as amended, restated, supplemented or otherwise
modified from time to time. 

        NOW,
THEREFORE, THIS SIXTH SUPPLEMENTAL INDENTURE WITNESSETH: 

        That
the parties hereto hereby agree as follows: 

        Section 1    Defined Terms; Rules of Interpretation.    Capitalized terms used herein and not otherwise defined
herein shall have the respective meanings ascribed thereto in the Indenture. The rules of interpretation set forth in the Indenture shall be applied hereto as if set forth in full herein. 

        Section 2    Additional Guarantor.    Molson Coors 2005 hereby agrees to guarantee payment of the Securities as
a Guarantor, on the same terms and conditions as those set forth in Article 10 of the Original Indenture. 

        Section 3    Ratification of Original Indenture: Supplemental Indentures Part of Original Indenture.    Except
as expressly amended or supplemented hereby, the Original Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and
effect. This Sixth Supplemental Indenture shall form a part of the Original Indenture for all purposes, and every Holder of any Securities heretofore or hereafter authenticated and delivered
pursuant thereto shall be bound hereby. Except only insofar as the Original Indenture may be inconsistent with the express provisions of this Sixth Supplemental Indenture, in which case the terms of
this Sixth Supplemental Indenture shall govern and supersede those contained in the Original Indenture, this Sixth Supplemental Indenture shall henceforth have effect so far as practicable as if all
the provisions of the Original Indenture were contained in one instrument. 

        Section 4    Counterparts.    This Sixth Supplemental Indenture may be executed in any number of counterparts,
each of which when so executed shall be deemed to be an original, but all such counterparts shall together constitute one and the same instrument. 

        Section 5    Governing Law.    This Sixth Supplemental Indenture shall be governed by, and construed in
accordance with, the laws of the State of New York but without giving effect to applicable principles of conflicts of law to the extent that the application of the laws of another jurisdiction would
be required thereby. 

        Section 6    Concerning the Trustee.    In carrying out the Trustee's responsibilities hereunder, the Trustee
shall have all of the rights, protections, and immunities which the Trustee possesses under the Indenture. 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 the validity or sufficiency of this Sixth Supplemental Indenture. 

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

					
	 	 	MOLSON COORS BREWING COMPANY
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	Name:	 	Douglas N. Beck
	 	 	Title:	 	Vice President
	

 	
 	
GUARANTORS:
	

 	
 	
MOLSON COORS CAPITAL FINANCE ULC
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	Name:	 	Douglas N. Beck
	 	 	Title:	 	Assistant Secretary

					
	 	 	COORS BREWING COMPANY
	

 	
 	

By:	
 	

/s/ Peter S. Swinburn

	 	 	Name:	 	Peter S. Swinburn
	 	 	Title:	 	President
	

 	
 	
CBC HOLDCO, INC.
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	Name:	 	Douglas N. Beck
	 	 	Title:	 	Secretary

 

											
	 	 	MOLSON COORS INTERNATIONAL LP
	

 	
 	

 	
 	

By:	
 	

MOLSON COORS INTERNATIONAL

GENERAL, ULC

Its General Partner
	

 	
 	

 	
 	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	 	 	 	 	 	 	Name:	 	Douglas N. Beck
	 	 	 	 	 	 	 	 	Title:	 	Attorney in Fact under Power of

Attorney dated June 17, 2008 for

Samuel D. Walker, Representative

 

							
	 	 	MOLSON COORS INTERNATIONAL

GENERAL, ULC
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	 	 	Name:	 	Douglas N. Beck
	 	 	 	 	Title:	 	Attorney in Fact under Power of Attorney

dated June 17, 2008 for

Samuel D. Walker, Vice President
	

 	
 	
COORS INTERNATIONAL HOLDCO, ULC
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	 	 	Name:	 	Douglas N. Beck
	 	 	 	 	Title:	 	Attorney in Fact under Power of Attorney

dated June 17, 2008 for

Samuel D. Walker, Vice President

 

					
	 	 	MOLSON COORS CALLCO ULC
	

 	
 	

By:	
 	

/s/ Kevin T. Boyce

	 	 	Name:	 	Kevin T. Boyce
	 	 	Title:	 	President

							
	 	 	MOLSON CANADA 2005
	

 	
 	

By:	
 	

/s/ Douglas N. Beck

	 	 	 	 	Name:	 	Douglas N. Beck
	 	 	 	 	Title:	 	Attorney in Fact under Power of Attorney

dated June 17, 2008 for Samuel D. Walker,

Representative
	

 	
 	
DEUTSCHE BANK TRUST COMPANY

    AMERICAS by DEUTSCHE BANK

NATIONAL TRUST COMPANY, as Trustee
	

 	
 	

By:	
 	

/s/ Irina Golovashchuk

	 	 	 	 	Name:	 	Irina Golovashchuk
	 	 	 	 	Title:	 	Assistant Vice President
	

 	
 	

By:	
 	

/s/ David Contino

	 	 	 	 	Name:	 	David Contino
	 	 	 	 	Title:	 	Vice President

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Exhibit 4.9QuickLinks
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 Exhibit 10.1  

 
 

AMENDMENT NO. 1 TO JOINT VENTURE AGREEMENT    
    

        This Amendment No. 1 to Joint Venture Agreement ("Amendment No. 1")
amends the Joint Venture Agreement, dated as of December 20, 2007, by and among Molson Coors Brewing Company, Coors Brewing Company, SABMiller plc, Miller Brewing Company and (upon its
execution of a joinder to the Joint Venture Agreement) MillerCoors LLC (the "Joint Venture Agreement"). Terms used herein and not otherwise
defined herein have the meanings set forth in the Joint Venture Agreement. 

        The
parties hereby agree to amend the Joint Venture Agreement as follows: 

	1.
	Section 1.01(b)
of the Joint Venture Agreement is amended by adding the following reference: 

"Interim
Operating Agreement 2.02"  

	2.
	Section 2.01
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"Organization of the Company. On or prior to the Closing Date, the Shareholders shall cause the Company to be formed as a Delaware limited liability
company by filing a certificate of formation with the Secretary of State of the State of Delaware in the form agreed by the Shareholders and by their execution of the Interim Operating Agreement.
After the formation of the Company and on or prior to the Closing Date, the Shareholders shall cause the Company to execute a joinder to this Agreement as a Party hereto in the form agreed by the
Shareholders (the "Joinder")."  

	3.
	Section 2.02
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"Operating Agreement. Concurrently with the formation of the Company, the Shareholders shall execute and deliver a limited liability company operating
agreement to be agreed upon by the Shareholders and which shall govern the affairs of the Company and the conduct of the Company's business until such agreement is replaced by the Operating Agreement
on the Closing Date (the "Interim Operating Agreement"). On the Closing Date, the Shareholders shall execute and deliver the amended and restated
limited liability company operating agreement governing the affairs of the Company and the conduct of the Company's business substantially in the form attached hereto as  Attachment I (the "Operating Agreement")."  

	4.
	Section 2.04
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"Shareholders. Upon the formation of the Company, the Company shall have authorized capital consisting of 1,000,000 Shares, consisting of 840,000
Class A Shares and 160,000 Class B Shares, and no preferred shares. Upon the formation of the Company, Miller was issued 16 Class B Shares, while Miller and CBC were each issued
42 Class A Shares. At the Closing, the Company will issue 159,984 Class B Shares to Miller and 419,958 Class A Shares to each of Miller and CBC so that, immediately after the
Closing, Miller will own all 160,000 Class B Shares, while Miller and CBC will each own 420,000 Class A Shares. Miller's 160,000 Class B Shares and 420,000 Class A Shares
are collectively referred to herein as the "Miller Interests," and CBC's 420,000 Class A Shares are referred to herein as the
"CBC Interests." As set forth more fully in the Operating Agreement, the Class B Shares and the Class A Shares will have the same rights
and preferences in all respects except that the Class B Shares shall not have voting rights or privileges." 

 

	5.
	Section 2.07
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"Term. The term of the Company shall be perpetual unless earlier terminated in accordance with the provisions of the Interim Operating Agreement or the
Operating Agreement."  

	6.
	Section 2.10(i)
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"No
payment by Miller or CBC to the Company pursuant to this Section 2.10 shall entitle either Miller or CBC to any additional interest in the
Company by virtue thereof beyond the Miller Interests and the CBC Interests issued to them, respectively, pursuant to this Agreement, the Interim Operating Agreement and the Operating Agreement." 

	7.
	Section 3.01(a)
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"MCBC
and CBC shall make and shall cause their respective Subsidiaries to make the Molson Coors Contributions in exchange for the issue of the CBC Interests to CBC (less the Shares issued to CBC on
the formation of the Company pursuant to the Interim Operating Agreement);"  

	8.
	Section 3.01(a)
of the Joint Venture Agreement is hereby amended to read in its entirety as follows: 

"Miller
shall make, and SABMiller and Miller shall cause the Miller Group Companies to make, the Miller Contributions in exchange for the issue of the Miller Interests to Miller (less the Shares
issued to Miller on the formation of the Company pursuant to the Interim Operating Agreement); and" 

        This
Amendment No. 1 shall be governed by and construed and take effect in accordance with the Laws of the State of Delaware, without giving effect to any choice of law or
conflict of laws rules or provisions (whether of the State of Delaware or any other jurisdiction) that would cause the application of the Laws of any jurisdiction other than the State of Delaware. 

        This
Amendment No. 1 may be signed in any number of counterparts, each of which shall be deemed an original, with the same effect as if the signatures thereto and hereto were upon
the same instrument. This Amendment No. 1 shall become effective when each Party shall have received counterparts hereof signed by the other Parties. 

2

 

        IN
WITNESS WHEREOF, the Parties have executed and delivered this Amendment No. 1 as of the 4th day of April, 2008. 

					
	

 	
 	

MOLSON COORS BREWING COMPANY
	

 	
 	

By:	
 	

/s/ SAMUEL D. WALKER

	 	 	Name:	 	Samuel D. Walker
	 	 	Title:	 	Chief Legal Officer and Secretary
	

 	
 	

COORS BREWING COMPANY
	

 	
 	

By:	
 	

/s/ SAMUEL D. WALKER

	 	 	Name:	 	Samuel D. Walker
	 	 	Title:	 	Director
	

 	
 	

SABMILLER PLC
	

 	
 	

By:	
 	

/s/ JOHN DAVIDSON

	 	 	Name:	 	John Davidson
	 	 	Title:	 	General Counsel and Company Secretary
	

 	
 	

MILLER BREWING COMPANY
	

 	
 	

By:	
 	

/s/ MICHAEL T. JONES

	 	 	Name:	 	Michael T. Jones
	 	 	Title:	 	Senior Vice President—General Counsel and Secretary

3

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AMENDMENT NO. 1 TO JOINT VENTURE AGREEMENT

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