QuickLinks -- Click here to rapidly navigate through this document

EXHIBIT 21

MOLSON COORS BREWING COMPANY AND SUBSIDIARIES
SUBSIDIARIES OF THE REGISTRANT

        The following table lists our significant subsidiaries and the respective jurisdictions of their organization or incorporation as of December 25, 2005. All subsidiaries are included in our consolidated financial statements.

Name						State/country of organization or incorporation
Coors Brewing Company						Colorado
	Coors Global Properties, Inc.					Colorado
		Coors International Market Development, L.L.L.P.				Colorado
	Coors Worldwide, Inc.					Colorado
		Golden Acquisition Ltd.				England
			Coors Holding Ltd.			England
				Coors Brewers Limited		England
Coors Brewing Company International, Inc.						Colorado
	Molson Coors Capital Finance ULC					Canada
	MC Finance General ULC					Canada
		Molson Coors Finance LP				Canada
Coors Intercontinental, Inc.						Colorado
	Molson Coors Callco ULC					Canada
	Molson Coors Canada Inc. (formerly Coors Canada, Inc.)					Canada
		Molson Inc.				Canada
			Carling O'Keefe Company			Canada
				Kaiser Paricipacoes S.A. (KP)		Brazil
					Cervejarias Kaiser Brasil S.A. (CKB)	Brazil
			Molson Canada Company			Canada
				Molson Canada (2005)		Canada

QuickLinks

MOLSON COORS BREWING COMPANY AND SUBSIDIARIES SUBSIDIARIES OF THE REGISTRANT