Tencent, one of China’s largest Internet services companies and the maker of WeChat, and JD.com have formed a strategic partnership. The deal can potentially boost Tencent’s competitive position against rival Alibaba Group, which dominates China’s fast-growing e-commerce market. Though it’s much smaller than Alibaba Group, JD.com is China’s second-largest e-commerce company, and made a total of $16.5 billion in sales last year.