China's biggest property developer, Wanda Group, and Internet giants Baidu and Tencent unveiled a new e-commerce venture Friday in a challenge to industry leader Alibaba Group ahead of its U.S. stock offering.The three companies said they will integrate online and offline selling, with e-commerce services in Wanda's 107 shopping malls, as well as its hotels and resorts. They said they would invest 5 billion yuan ($814 million) to start.
The venture adds to competition for Alibaba, whose Taobao, Tmall and other platforms account for some 80 percent of Chinese online commerce. The company is preparing for a U.S. initial public offering that analysts say might value it between $150 billion and $200 billion.

Source - http://abcnews.go.com