Meanwhile Binance, one of the world's largest cryptocurrency exchanges, said that account registrations using Chinese mobile phone numbers are now blocked. The Binance app is also no longer available for download in China.
"Binance takes its compliance obligations very seriously and is committed to following local regulator requirements wherever we operate," a spokesperson told CNBC.
This year, Chinese authorities have intensified a crackdown on cryptocurrencies that has targeted bitcoin miners and trading.
But China's tough stance on cryptoc