LinkedIn has named Derek Shen (LinkedIn profile) president of LinkedIn China and VP of LinkedIn.

LinkedIn has had four million users in China, according to the announcement. There isn’t a prevailing business social networking service in China market although all kinds of such services have come and gone, come and gone.

Mr. Shen was vice president of Renren and CEO of Nuomi, the group-buying service under Renren. He left the company after Baidu announced to buy 59% stake in Nuomi in 2013.