FinCEN moves to sever MEXC’s access to US financial institutions

US financial institutions will be prohibited from processing covered transfers involving MEXC Global under a new FinCEN order, escalating Washington’s efforts to isolate cryptocurrency services it links to sanctions evasion. Treasury announced the action on November 6 as part of Operation Economic Outcast.

Officials allege that MEXC facilitated at least $16 billion in illicit transactions between May 2021 and May 2026. The announcement establishes the regulatory action; the transaction classifications and misconduct allegations remain Treasury’s determinations rather than findings from a criminal trial.

What the order requires

FinCEN used authority under Section 9714 of the Combating Russian Money Laundering Act. Its order identifies MEXC as a financial institution outside the United States of primary money-laundering concern in connection with Russian illicit finance.

The restriction covers qualifying transfers to or from MEXC and extends to its subsidiaries, branches, offices and successor entities outside the United States. Treasury says violations can lead to civil or criminal penalties.

The effective date is tied to publication: the order begins 30 days after it appears in the Federal Register. The agency’s posted document is a prepublication version, so the announcement should not be read as a transfer prohibition already effective on November 7.

Treasury details its sanctions concerns

Treasury alleges that nearly $1.5 billion in MEXC transactions were connected to Russian sanctions evasion, including $232 million directly involving entities sanctioned by the United States, European Union or United Kingdom. It also identifies transactions associated with Garantex, its successor Grinex, the A7 network and the A7A5 stablecoin.

The agency describes additional connections to Iran and North Korea. Its account includes approximately $1 billion in direct transfers with more than 40 Iranian cryptocurrency exchanges and about $22 million involving Iran’s central bank, the Islamic Revolutionary Guard Corps and the Qods Force.

These figures describe categories within the agency’s review. They should not be added together as if each represented a distinct, non-overlapping loss to customers, nor treated as the exchange’s total worldwide trading volume.

A US access restriction has a specific scope

Treasury says the action is intended to protect the US financial system. It does not, on its own, announce a worldwide shutdown of MEXC, seize every customer balance or establish that all services in other jurisdictions have stopped.

The order also leaves existing Bank Secrecy Act and OFAC obligations in place. For covered institutions, implementation means examining MEXC-related payment exposure alongside those continuing controls. For the wider market, the development highlights how access to US financial infrastructure can become an enforcement tool even when the targeted exchange operates overseas.