CEO Charles Chao announced that Sina Weibo has reached 250 million users, in a conference call discussing the firm’s unaudited Q3 financial results.

Chao also discussed the release of the new version of Sina Weibo: ”Since the official launch of v4.0 in September, over half of the existing users have upgraded, and we continue to see rapid growth of new users. Our focus now turns to adding more social networking features to Weibo to increase user stickiness.”

via Sina Weibo Reaches 250 Million Users | iChinaStock.