The U.S. Treasury's Financial Crimes Enforcement Network (FinCEN), the Treasury bureau that administers U.S. anti-money-laundering rules, issued a final order on Friday that will cut offshore cryptocurrency exchange MEXC Global off from the American banking system, citing alleged links to sanctions evasion by Iran, North Korea and Russia. The department announced the move in a press release.

FinCEN's order, published as a PDF pending placement in the Federal Register, finds MEXC a “primary money laundering concern in connection with Russian illicit finance” under section 9714(a) of the Combating Russian Money Laundering Act. Thirty days after the notice appears in the Register, covered U.S. financial institutions will be barred from processing any funds transfer — including convertible virtual currency — to or from MEXC. Reuters reported the cut-off Friday afternoon, and Treasury framed the action as part of its Operation Economic Outcast.

The measure is not an OFAC sanctions designation. According to the document, it does not rewrite Bank Secrecy Act obligations or OFAC rules; it functions as a FinCEN funds-transmittal ban rather than a Section 311 proposed rulemaking.

Treasury alleges MEXC facilitated at least $16 billion in illicit flows between May 2021 and May 2026. That total includes nearly $1.5 billion tied to Russian sanctions evasion and roughly $22 million linked to Iran's Central Bank and the Islamic Revolutionary Guard Corps' Qods Force. The platform was still processing trades with sanctioned exchange Garantex and its successor Grinex as recently as June 2026 — more than four years after OFAC designated the Russia-based exchange in April 2022, according to the release.

What the Order Does — and When

The order, signed by FinCEN Deputy Director Jimmy L. Kirby, covers MEXC Global and named affiliates operating outside the United States: Seychelles-incorporated MEXC Global Ltd / MX Global Ltd, Estonia's MEXC Estonia OÜ, Switzerland's GIDA Technology AG and the U.K.'s MXC Global Ltd, along with any successors. Covered institutions face civil or criminal penalties for willful violations.

The 30-day clock has not yet started. As of Friday evening Eastern time, the Federal Register's public index still showed no MEXC document, matching the order's own cover note stating that publication is pending.

Background on MEXC

Founded in 2018 and formerly branded MXC, MEXC ranks among the world's 20 largest centralized crypto venues by volume. Treasury puts the exchange's daily turnover above $1 billion and its reserves near $5 billion as of mid-2026, with claimed access across more than 170 countries. MEXC already lists the United States as a prohibited jurisdiction in its user terms, so Friday's action primarily targets any remaining dollar rails, banking partners and counterparties that still touch U.S. institutions.

Regulators in other jurisdictions have scrutinized the platform for years. The U.K. Financial Conduct Authority added MEXC Global Ltd to its warning list as an unauthorized firm in March 2024. Hong Kong's Securities and Futures Commission warned the same month that the platform was marketing to local investors without a licence. Seychelles' Financial Services Authority said in May 2026 that it had taken action against MX Global Ltd for unlicensed virtual-asset operations — a step footnoted in FinCEN's order.

The illicit-flow allegations are specific rather than a case of guilt by association. Beyond the Russia figures, FinCEN cites about $1 billion in direct traffic with more than 40 Iranian crypto exchangers, nearly $26 million with the OFAC-sanctioned A7 sanctions-evasion network and almost $200 million tied to the A7A5 stablecoin. Flows involving North Korean facilitators and cybercrime are also alleged. MEXC has not issued a public response to Friday's order; its main X account continued posting marketing content through the afternoon.

Why It Matters for Bitcoin Markets

Once the order takes effect, U.S. banks, money transmitters and other covered firms will be unable to move dollars or crypto to MEXC wallets or accounts. Offshore users may continue trading peer-to-peer, but dollar on-ramps and any bank still clearing transactions for MEXC become legal risk. The action follows the template of earlier section 9714 cut-offs against venues such as Bitzlato — FinCEN's January 2023 order against that exchange was the first use of the authority — and it lands in a busy sanctions week that has already brought North Korea crypto designations, an Iranian exchange action and Russia's push to list bitcoin trading on the Moscow Exchange.

Whether MEXC contests the finding, seeks an exemption or quietly reroutes its liquidity remains an open question. For now, the paper trail is clear: a final FinCEN order under section 9714(a), a 30-day fuse that begins with Federal Register publication, and Treasury's claim of at least $16 billion in illicit volume behind the cut-off.