Huobi said it would stop new-user registrations by mainland customers, and retire existing ones by the end of 2021.
The cryptocurrency market surged in value on Monday, recovering from Friday's slump that was triggered by China's ban on trading and mining.
Elon Musk's collaborative tone about data security came despite China's richest tech titans being hurt by Beijing's regulatory crackdown.
Cryptocurrencies "cannot be used as currency in the market," China's central bank said, in its toughest crackdown move yet.
Wynn is one of several casino operators in Macau that face tighter obligations under China's recent regulatory crackdown.
The Chinese government wants Alipay parent Ant Group to turn over consumer data used for lending decisions.
Weibo has closed at least 52 accounts, the largest of which had more than 3 million followers, according to a new report.
Transport authorities told the ride-hailing services to review their use of unapproved drivers and vehicles, as China's regulatory crackdown continues.
Chinese regulators had ordered Ant Group to restructure before allowing the fintech giant to complete its record-breaking $35 billion IPO.
Chinese companies with less sensitive data, such as pharmaceuticals, are still likely to receive regulatory approval, The Wall Street Journal said.
China's regulatory campaign against internet firms has devastated Kuaishou's share price of late, knocking off 72% since the start of June.
The bank's analysts see long-term value in Chinese tech stocks, but recommended waiting for greater clarity around new regulations before buying.
"I'm not pessimistic about China longer run because I think they're a very entrepreneurial society," the star stock-picker said.
The star stock-picker's fund bought about 165,000 American Depositary Receipts in the e-commerce group on Monday.
SEC chief Gary Gensler recently warned investors about the risks of buying into Chinese companies listing in the US.
Jeremy Grantham, Bill Miller, Charlie Munger, and Steve Cohen's portfolios were potentially hit by Alibaba's plunging stock price as well.
On the tech giant's second-quarter earnings call, Tencent's president said he expects more regulatory changes but the company will navigate them.