With the move, the retailer said U.S. products will become an even larger part of its supply chain. It will focus the effort on buying more materials and merchandise from domestic manufacturers, including plastics, textiles, pharmaceutical and medical supplies, food processing, and small electrical appliances. As the world's largest retailer by revenue, Walmart has faced criticism from labor advocates and others for driving down prices in a way that pushes more manufacturing and jobs overseas. The company responded in 2013 by pledging to buy $250 billion in U.S. goods by 2023. Wednesday's announcement represents a step up from that commitment. Over the past several years, Walmart has created new ways for American suppliers to get picked up by its stores and website, including an annual Open Call event where small businesses can pitch their products. It also created a website where Walmart suppliers can learn about how to bring back their operations to the U.S.