<P> The Massmart acquisition received final governmental approval in early 2012 . The single store Mauritius was closed in January 2012 . </P> <P> In June 2014, Walmart employees went on strike in several major cities in the United States . </P> <P> In late 2005, Walmart designed two experimental stores, one in McKinney, Texas and the other in Aurora, Colorado, which featured wind turbines, photovoltaic solar panels, biofuel - capable boilers, water - cooled refrigerators, and xeriscape gardens . </P> <P> In March 2006, Walmart sought to appeal to a more affluent demographic, with the opening of a new supercenter in Plano, Texas at the corner of Park Blvd. and the Dallas North Tollway which was intended to compete against stores that some viewed as more upscale and appealing . The new store features wooden floors, wider aisles, a sushi bar, a coffee / sandwich shop (with free Wi - Fi Internet access), a Subway, and higher - end items such as microbrew beer, expensive wines, and high - end electronics . The exterior sports the less - common hunter green background behind the Walmart letters instead of the trademark blue . </P>

When did walmart become a fortune 500 company