BEIJING: TikTok proprietor ByteDance is about to promote or shut down all of its securities companies amid the tightening regulatory surroundings for Chinese web giants’ monetary operations, Caixin has discovered. A ByteDance subsidiary has agreed to promote 100% of its stake in Beijing Wenxing Online Technology to Chinalin Securities for 20 million yuan, in line with a submitting launched by Chinalin Securities on Monday. Wenxing is the operator of Dolphin Stock, an app that gives inventory market knowledge and information. Chinalin Securities plans to register Wenxing as a subsidiary that gives info know-how providers, the securities firm mentioned. ByteDance in...