Wal-Mart Stores, Inc. is principally engaged in the operation of mass merchandising stores. At January 31, 2002, the Company operated 1,647 discount stores, 1,066 supercenters, 500 SAM'S clubs and 31 neighborhood markets in the United States. Internationally, at January 31, 2002, the Company operated units in Argentina (11), Brazil (22), Canada (196), Germany (95), South Korea (nine) Mexico (551), Puerto Rico (17) and the United Kingdom (250), and, under joint venture agreements, in China (19). The Company operates through three segments, the Wal-Mart Stores segment, the SAM'S Club segment and the International segment.