Online retail sales hit 1.6 trillion yuan (250 billion U.S. dollars), 11.4 percent of total retail sales in China. The number of online shoppers rose 19.1 percent to 417 million, said the Hangzhou-based e-commerce tracker.
Cross-border e-commerce has become a new driver of retail sales as online retailers connect domestic consumers with an increasing number of overseas brands, according to CECRC analyst Mo Daiqing
Alibaba's online marketplace Tmall continues to dominate China's online business-to-consumer market, with 57.7 percent of the market. Its rival JD.com comes in second, at 25.1 percent, followed by a distant third by Sunning.com, at 3.4 percent.

Not sure which is most impressive. Scale and growth? % of total retail sales? Or the fact that Alibaba and JD.com essentially own the entire market.

For sake of comparison, the US is about 7-8% of total retail sales and $300 billion annually in 2014.