American retailer Wal-Mart has signed a deal with online payments provider Alipay to help consumers pay for goods in China. Wal-Mart will begin the cooperation within 25 of its outlets in Shenzhen. Based on the market response in this southern Chinese city, Wal-Mart plans to gradually expand the coverage of this new service throughout mainland China. Alipay is a related service of Alibaba, the Chinese e-commerce juggernaut. Financial terms of the deal were not released.