Treasury orders U.S. transfer ban involving MEXC

Crypto exchanges can serve users across borders, while U.S. financial institutions remain subject to federal transfer rules: on Nov. 6, Treasury’s Financial Crimes Enforcement Network (FinCEN) ordered covered institutions to stop sending funds to or receiving them from MEXC Global. FinCEN says the exchange facilitated at least $16 billion in transactions linked to sanctions evasion and cybercrime.

The FinCEN announcement says the order covers funds transfers involving MEXC, including cryptocurrency. The agency’s accompanying Federal Register order identifies MEXC as a money-laundering concern connected to Russian illicit finance and prohibits covered financial institutions from transmitting funds to or from the exchange.

What will the order prevent U.S. institutions from doing?

Once effective, the order bars covered financial institutions from sending or receiving transfers involving MEXC Global, including convertible virtual currency (CVC)—a term the order uses for digital assets that serve as, or substitute for, currency. That means the restriction is aimed at financial channels connecting U.S. institutions and MEXC. It does not itself order MEXC to close its platform.

The order defines MEXC Global to include its non-U.S. branches, subsidiaries, offices and successor entities. It expressly excludes any MEXC branches, subsidiaries or offices located in the United States. FinCEN also says institutions may reject certain incoming CVC transfers in specified circumstances, recognizing that a bank or other covered institution may not be able to stop a transfer sent from an address outside its control.

What does FinCEN say the $16.7 billion represents?

FinCEN’s order assesses that between May 2021 and May 2026 MEXC facilitated at least $16.7 billion in likely illicit activity, including funds connected to Russian illicit finance, sanctions evasion and cybercrime. The agency separately says its blockchain analysis found nearly $1.5 billion in direct and indirect exposure to transactions linked to Russian sanctions evasion during that period.

The filing also describes more than $1 billion in direct transactions between MEXC and over 40 identified Iranian crypto exchanges. It says at least $1.99 billion in funds originating from or moving to illicit cyber actors passed through MEXC between May 2021 and May 2026. These are FinCEN’s assessments and allegations underlying the order; the agency’s release summarizes the figure as at least $16 billion in illicit transactions tied to Iran, North Korea and Russia, as well as cybercrime.

When will the transfer prohibition take effect?

The Federal Register filing lists publication for Nov. 10, 2026, and sets the order’s effective date at 30 days after publication. That puts the scheduled start on Dec. 10. The order has no stated end date, though FinCEN reserves authority to grant exemptions or impose conditions on particular transfers.

For customers and firms using MEXC, the practical point is the U.S. transfer link: affected institutions will have to reject covered transfers once the prohibition takes effect. The next date to watch is Dec. 10, when the restriction is scheduled to begin.

Sources

• FinCEN announcement — fincen.gov
• Federal Register order — public-inspection.federalregister.gov