Twitter's China boss Kathy Chen quits after 8 months

Twitter Inc executive Kathy Chen, brought in to run Greater China just over eight months ago, has quit, according to a tweet sent by her over the weekend.

Twitter has been blocked in China since 2009 but is still used through virtual private networks (VPN).

Domestically, the Sina Weibo microblogging platform and Tencent's WeChat messaging app are more widely used. But Chinese entities, including the state news agency Xinhua, use Twitter to reach audiences abroad.

Chen, who previously worked at Microsoft and Cisco , was brought in to lure more Chinese advertisers to Twitter. At the time, social media