Wal-Mart Inc. (NYSE: WMT) is a worldwide chain company in the United States. It is the largest company in the world in terms of turnover, and its holder is the Walton family. Headquartered in Bentonville, Arkansas, USA. Wal-Mart, which mainly engages in retail business, has the largest number of employees in the world, ranking first among Fortune 500 companies for five consecutive years. Wal-Mart has 8,500 stores in 15 countries around the world. Wal-Mart operates in 50 states and Puerto Rico. Wal-Mart has four main business modes: Wal-Mart Shopping Plaza, Sam’s Club Store, Wal-Mart Store and Wal-Mart Community Store.