Exhibit 10.4

AMENDMENT AND NOVATION AGREEMENT

dated 14 June 2012

THIS AMENDMENT AND NOVATION AGREEMENT (this “Agreement”) is made and entered into by and between Molson Coors Holdco 2 LLC (formerly known as Molson Coors Holdco – 2 Inc.), a Delaware limited liability company ( “MC Holdco”), Molson Coors Netherlands B.V., a private company with limited liability (in Dutch: ‘besloten vennootschap met beperkte aansprakelijkheid’) incorporated under the laws of the Netherlands (“MC Netherlands”), Molson Coors Brewing Company, a Delaware corporation (“MCBC”), Starbev L.P., a limited partnership formed and organized under the laws of Jersey (the “Seller”) and the individuals executing this Agreement hereunder (the “Management Warrantors”) (each a “Party”, and together the “Parties”).

RECITALS

WHEREAS, on 3 April 2012 MC Holdco, the Seller and MCBC entered into an agreement pursuant to which MC Holdco has agreed to purchase all of the share capital of Starbev Holdings S.à r.l., a company incorporated in the Grand Duchy of Luxembourg (the “Company”) (the “Purchase Agreement”);

WHEREAS, MC Holdco, the Seller and MCBC wish to make certain amendments to the Purchase Agreement;

WHEREAS, MC Holdco desires to be released and discharged from the Purchase Agreement (as amended) and each Transaction Document (as defined in the Purchase Agreement) to which it is a party and the Parties have agreed to the novation of the Purchase Agreement (as amended) and each Transaction Document to which the Purchaser is a party and to the substitution of MC Netherlands as a party to the Purchase Agreement (as amended) and each Transaction Document to which it is a party in place of MC Holdco; and

WHEREAS, capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Purchase Agreement.

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

1. Amendment. With immediate effect from the date of this Agreement (the “Effective Date”), the Purchase Agreement shall be amended (and save where the context otherwise requires, any reference to the Purchase Agreement in this remainder of this Agreement and elsewhere shall be read and construed as a reference to the Purchase Agreement as amended by this clause 1) such that:

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2. Novation. With immediate effect from the Effective Date but subject to clauses 3 and 4 below:

3. MC Holdco Continuing Obligations. Notwithstanding the provisions of clauses 2(a) to (d) above, MC Holdco hereby acknowledges that it shall remain fully and primarily liable for all the obligations under the Purchase Agreement with respect to: (a) the acquisition and assumption of, and

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payment for, the inter-company indebtedness for borrowed money referred to in clause 1 above, and (b) payment of all or part of the Facilities in accordance with clause 6.3(b) of the Purchase Agreement to the extent mutually agreed with MC Netherlands.

4. MCBC Continuing Obligations. For the avoidance of doubt, MCBC agrees and confirms that the guarantee provided by it pursuant to clause 13 of the Purchase Agreement shall apply in respect of the obligations of both MC Holdco and MC Netherlands (howsoever arising and whether arising on, before or after the Effective Date).

5. Further Assurance. Each of the Parties agrees to perform (or procure the performance of) all further acts and things, and execute and deliver (or procure the execution and delivery of) such further documents, as may be required by law or as may be necessary or reasonably desirable to implement and/or give effect to this Agreement.

6. Governing Law and Jurisdiction. This Agreement and any non-contractual obligations arising out of or in connection with this Agreement shall be governed by, and interpreted in accordance with, English Law. Except as expressly provided otherwise in this Agreement, the English courts shall have exclusive jurisdiction in relation to all disputes (including claims for set-off and counterclaims) arising out of or in connection with this Agreement including, without limitation, disputes arising out of or in connection with (i) the creation, validity, effect, interpretation performance or non-performance of, or the legal relationships established by, this Agreement and (ii) any non-contractual obligations arising out of or in connection with this Agreement. For such purposes each party irrevocably submits to the jurisdiction of the English courts and waives any objection to the exercise of such jurisdiction.

7. Counterparts. This Agreement may be executed in any number of counterparts, and by each party on separate counterparts. Each counterpart is an original, but all counterparts shall together constitute one and the same instrument. Delivery of a counterpart of this Agreement by e-mail attachment or telecopy shall be an effective mode of delivery.

[Signature Pages Follow]

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IN WITNESS WHEREOF, each of the parties hereto has executed this Agreement as of the date first written above.