China’s three most popular social media platforms have been placed under investigation on suspicion of violating the country’s new cybersecurity law, the top internet watchdog said on Friday, as it seeks to tighten its grip before the party congress in the autumn.
Sina Corp is an online Chinese media group operating Sina Weibo, a Chinese-language microblog loosely modelled on Twitter. Sina Weibo has more than half of the China market. Sina Corp also owns Sina.com, which is the biggest Chinese language infotainment web portal, according to Wikipedia. Sina Corp’s global headquarters are in Shanghai. Its rivals are Baidu and Sohu.com.