S
Sina
Sina Corporation is a Chinese internet and online media company best known for operating the Sina.com portal and for its controlling interest in Weibo Corporation, which runs the microblogging platform Weibo. Sina was formed in March 1999 through the merger of Beijing SINA Information Technology and California‑based SINANET.com. It listed on Nasdaq in April 2000 and became a private company again when a go‑private transaction led by chairman Charles Chao closed on March 22, 2021. The company is incorporated in the Cayman Islands and is headquartered in Beijing.
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