Huobi Ends CNY Trading for Mainland China Users

Huobi Global ended its remaining renminbi transaction channel for mainland China users at 16:00 UTC on December 31, 2021, completing the last scheduled trading step in the exchange’s withdrawal from that market.

Under the timetable published by Huobi on December 15, mainland users could no longer sell digital-asset holdings through its over-the-counter service or conduct transactions involving Chinese yuan after the deadline. Unfilled sell orders were to be canceled automatically. Withdrawals remained available, however, so the deadline did not mean that every affected account or asset became inaccessible at once.

The distinction matters. Huobi had already stopped spot trading for mainland users at 03:00 UTC on December 15. The December 31 cutoff closed the remaining CNY selling route described in the exchange’s schedule, while preserving a withdrawal-only path that Huobi said would remain open for one to two years, subject to later notice.

Regulation becomes an operating deadline

The exchange’s action followed a joint Chinese government notice released by the People’s Bank of China on September 24, 2021. The notice classified services including fiat-to-cryptocurrency conversion, cryptocurrency-to-cryptocurrency exchange, transaction matching, token financing and digital-asset derivatives as illegal financial activities.

Crucially for offshore platforms, the notice also said that overseas virtual-currency exchanges providing internet services to residents inside China were engaged in illegal financial activity. That provision narrowed the practical value of operating an exchange from outside the mainland while continuing to serve mainland customers online.

Huobi stopped accepting new mainland registrations on September 24 and said it would retire existing mainland accounts by the end of 2021. Reuters reported on September 27 that Binance had also stopped new mainland registrations and that other cryptocurrency businesses were severing ties with Chinese customers. Huobi co-founder Du Jun told Reuters that the company began corrective measures when it saw the government notice, but he did not provide an estimate of how many users would be affected.

Huobi defined the restricted population through its identity controls: verified mainland Chinese citizens were covered, while users without completed identity verification could be evaluated using their registration nationality. That makes the deadline more precise than a blanket claim that every person physically located in China lost access simultaneously.

Why the cutoff mattered

The December 31 deadline converted a policy announcement into a concrete change in market infrastructure. China had restricted domestic cryptocurrency exchanges before 2021, and many operators had moved important functions offshore. The September notice directly targeted the offshore-service channel, while Huobi’s staged shutdown demonstrated how that language could reshape customer access even without an exchange closing globally.

The event also separated ownership from service access. The regulatory notice prohibited a broad range of cryptocurrency business activities and described participation as carrying legal risk, but the contemporaneous Reuters account noted that the policy did not expressly declare cryptocurrency ownership itself illegal. Huobi’s continuing withdrawal facility reflected that operational distinction: users could remove assets even after trading and CNY transactions stopped.

No reliable contemporaneous figure establishes the number of Huobi customers removed, the value withdrawn before the deadline or the deadline’s independent effect on cryptocurrency prices. Claims that the cutoff alone caused a specific market move would therefore exceed the surviving evidence. The verifiable significance of December 31, 2021, is institutional: a major exchange reached the final transaction deadline in its staged retreat from mainland China under the country’s broadest cryptocurrency-services restrictions of 2021.