Starting from January 12th, 2017, BTCChina has suspended margin loan service. If you have any questions, please contact Customer Service: support@btcc.com.

BTCChina, which commands over 37% of global bitcoin trading...

... wasn't alone.

Following last week's central bank crackdown on bitcoin, China's major bitcoin exchanges have all halted, or otherwise updated, their lending-based bitcoin trading services, according to CoinDesk.

First reported by China-based bitcoin traders and market observers, BTCC, Huobi and OKCoin appear to have quietly adjusted their terms. Just around the time of the BTCChina notice, Huobi issued a similar announcement on its WeChat page, advising clients that "in order to maintain market stability, we may pause the new leverage services at any time according to market fluctuations and our risk control systems."