CoinEx cryptocurrency exchange is winding down operations in mainland China to comply with local anti-crypto regulations. The company officially announced on Thursday that it was going to completely retire user accounts verified as mainland China citizens as well as those linked to a mobile phone number from mainland China. The exchange has asked mainland China-based users to withdraw their crypto assets from the platform before Oct. 31, 2021. CoinEx then plans to disable accounts with zero assets starting from Thursday, Sept. 30. “All access will no longer be available to your accounts,” the exchange stated. Despite CoinEx’s aggressive measures to…