The People’s Bank of China disclosed on June 21, 2021 that it had summoned five banks and Alipay over services connected to cryptocurrency trading, turning an established prohibition into a direct operational order for some of China’s largest payment gateways.
The PBOC named Industrial and Commercial Bank of China, Agricultural Bank of China, China Construction Bank, Postal Savings Bank of China, Industrial Bank and Alipay (China) Network Technology. Its Chinese notice said the meetings occurred “recently”; it did not establish that the meeting itself took place on June 21. The verifiable event for this archive date is the regulator’s June 21 public disclosure and the institutional responses issued with it.
What the central bank required
The PBOC instructed banks and payment institutions to enforce customer-identification duties and not provide account opening, registration, trading, clearing or settlement products and services for cryptocurrency-related activity. It also told them to identify accounts belonging to cryptocurrency exchanges and over-the-counter dealers, sever payment channels used for trading funds, improve transaction-monitoring models and assign internal responsibility for enforcement.
This was not a newly enacted statute and not a claim that Bitcoin’s network had been technically blocked. The notice explicitly grounded the instructions in existing Chinese measures, including the 2013 notice on Bitcoin risks and the 2017 announcement concerning token-offering financing. What changed on June 21 was the specificity of the implementation demand: banks and a dominant mobile-payment provider were told to locate and disable fiat channels serving exchanges and OTC merchants.
The participating institutions said they would not conduct or participate in cryptocurrency-related business and would increase screening and enforcement. A June 21 statement from Agricultural Bank of China, preserved in a contemporaneous republication attributed to the bank’s website, went further on customer handling. It said the bank would prohibit onboarding tied to virtual-currency trading, intensify monitoring, suspend account transactions or terminate customer relationships when such conduct was found, and report matters to authorities.
Why the payment rails mattered
By June 2021, China’s domestic exchange restrictions had pushed part of cryptocurrency trading toward peer-to-peer and OTC arrangements. Those markets could still depend on ordinary renminbi bank transfers or payment apps to move money between buyers and sellers. Cutting off identified exchange and dealer accounts therefore targeted the fiat edge of trading rather than the blockchain itself.
That distinction is central to the event’s significance. A decentralized network may continue producing blocks while access becomes materially harder for users whose deposits, withdrawals or peer-to-peer settlements rely on regulated financial intermediaries. The PBOC’s order joined financial surveillance, customer due diligence and payment control in a single enforcement program.
Market reaction, with limits
A Reuters market report on June 21 recorded bitcoin falling to an intraday low of $31,333 and later quoted it down 10.7%. The instrument was bitcoin against the U.S. dollar, but the surviving syndicated report does not identify a single exchange, candle boundary or exact timestamp for the “last” quote. Crypto trades continuously, so the figure is an intraday news snapshot rather than an official close.
The decline also cannot be assigned solely to the PBOC notice. Reuters reported that pressure already reflected China’s broader crackdown, including a June 18 order affecting mining projects in Sichuan. The most defensible interpretation is that the banking directive added a new, verifiable restriction to an already stressed market; it does not prove that every dollar of the June 21 move was caused by that disclosure.
What remained unresolved
The PBOC record established the institutions addressed and the controls demanded, but not how many accounts were identified, how much transaction volume was interrupted or how consistently each institution would apply its monitoring. Those were open implementation questions on June 21, 2021. The record supports a consequential escalation in payment-channel enforcement, not a measured estimate of trading eliminated or a forecast for bitcoin’s price.
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This article provides news and analysis, not investment, legal or tax advice. Digital assets are volatile and may result in total loss.

