
While Twitter is officially blocked in China, many people still use it over VPNs as do international Chinese companies. Chen became Twitter’s first Greater China chief in April as part of the company’s efforts to extend its reach to Chinese advertisers.
She was reportedly the only person left in the company’s Hong Kong office after October, when a number of staff were moved to an Asia-Pacific headquarters in Singapore, the Financial Times reports. In a separate tweet she said: "Now that the Twitter Apac team is working directly with Chinese advertisers, this is the right time for me to leave the company."