STATE OR OTHER JURISDICTION OF NAME UNDER WHICH INCORPORATION OR SUBSIDIARY DOES SUBSIDIARIES ORGANIZATION BUSINESS --------------------------------------- --------------------- ------------------------------------- Costco Wholesale Corporation Washington Costco Wholesale Corporation, Costco Wholesale
The Price Company California The Price Company, Price Club, Costco Wholesale
Costco Wholesale Canada Ltd. Canadian Costco Wholesale Canada, Ltd., Costco Federal Wholesale
Costco Canada Inc. Canadian Costco Canada Inc., Federal Price Costco, Costco
Price Costco Canada Holdings Inc. Canadian Price Costco Canada Holdings Inc. Federal