Leading Silicon Valley law firm Wilson Sonsini Goodrich & Rosati has announced plans to open a Hong Kong office with a lateral hire from Milbank, Tweed, Hadley & McCloy.

Weiheng Chen, formerly a counsel in Milbank’s Hong Kong and Beijing offices, will join Wilson Sonsini as a corporate and securities partner and co-head of the China practice. Chen, who specializes in mergers and acquisitions and private equity transactions, has worked in the region since 2003. He joined Milbank in 2008 from the Hong Kong office of Sullivan & Cromwell, where he was an associate. Chen has worked on several major transactions, including the 2008 acquisition of Singapore’s Tuas Power by China’s state-owned power-generation company Huaneng Group for $4.2 billion and the 2007 initial public offering of Chinese business-to-business Internet giant Alibaba.com.