Treasury Cuts MEXC Off From U.S. Banks Over $16.7 Billion in Illicit Flows
On 6 November the U.S. Treasury said FinCEN had cut MEXC Global off from American finance, citing $16.7 billion in flows tied to sanctions evasion and cybercrime between May 2021 and May 2026. The order bars U.S. firms from moving money to or from the exchange once it takes effect. It does not switch the platform off worldwide.
FinCEN put that finding in a formal order under section 9714(a) of the Combating Russian Money Laundering Act [1][2]. The agency determined that MEXC Global, a convertible virtual currency exchanger founded in 2018 and incorporated in the Seychelles, is a foreign financial institution of primary money-laundering concern in connection with Russian illicit finance [2].
The order states that “A covered financial institution is prohibited from engaging in any transmittal of funds from or to MEXC Global.” [2]. The order defines those transmittals as the sending and receiving of funds, including convertible virtual currency. Bitcoin is included as that kind of currency for this purpose, even though it has legal tender status in at least one jurisdiction [2].
Treasury Secretary Scott Bessent cast the move in sharper political terms. “Financial institutions cannot have it both ways: Either you support the Iranian regime, or you have access to the U.S. financial system,” he said [1]. Treasury, he added, would keep cutting the Iranian regime’s economic lifelines and its attempts to get around U.S. sanctions with digital assets [1].
The department presented the action as part of Operation Economic Outcast. The statute it used can reach a foreign institution only when the finding is tied to Russian illicit finance, and that is the hook FinCEN wrote into the order [1][2].
A ban on sending money, not a global shutdown
The terms take effect 30 days after publication in the Federal Register, with no cessation date [2]. The PDF’s cover note says the document has been submitted for publication and is still pending placement [2]. On 8 November, a search of the Federal Register’s public document index and its public-inspection API still returned no MEXC notice for this order [5]. Until that notice appears, the 30-day clock has not started.
Nothing in the order modifies existing Bank Secrecy Act duties, including suspicious activity report filings, or the sanctions administered by the Office of Foreign Assets Control [1][2]. Willful violations can bring civil or criminal penalties [2]. FinCEN reserved the power to impose conditions or to grant exemptions [2].
The finding covers MEXC Global and its branches, subsidiaries, offices and successor entities operating outside the United States, including MEXC Global Ltd and MX Global Ltd in the Seychelles, MEXC Estonia OÜ, Switzerland’s GIDA Technology AG and the United Kingdom’s MXC Global Ltd, plus former Singapore entities [2]. Any U.S. branches, subsidiaries or offices are expressly excluded [2]. The order is signed by Jimmy L. Kirby, FinCEN’s deputy director [2].
Treasury’s 6 November release placed MEXC, as of September 2026, among the world’s 20 largest convertible virtual currency exchangers, with more than $1 billion in daily transactions and about $5 billion in reserves [1]. FinCEN’s order cites the same volume and reserve figures as of June 2026 and says the platform operates across more than 170 countries [2].
The $16.7 billion in the order
Between May 2021 and May 2026, FinCEN wrote, MEXC facilitated the movement of $16.7 billion in funds connected to Russian illicit finance and other illicit activity, including sanctions evasion and cybercrime [2]. Treasury’s press release rounded the same finding to “at least $16 billion” [1].
Nearly $1.5 billion of that total, the agency said, was sent or received with direct and indirect exposure to Russian sanctions evasion, including $232 million in direct transactions with persons sanctioned by the United States, the European Union and the United Kingdom [1][2]. FinCEN said MEXC handled about $129 million with Garantex, the Russian exchange OFAC designated in April 2022, and $4.1 million with its successor Grinex, and that it was still transacting with both as of June 2026 [2].
The order also cites at least $26 million benefiting the OFAC-sanctioned A7 network and almost $200 million connected to the A7A5 stablecoin [1][2].
On Iran, FinCEN said MEXC sent or received more than $1 billion in direct transactions with more than 40 identified Iranian crypto exchangers, some of them sanctioned, even though MEXC’s user agreement bars people in Iran [1][2]. In the same window it attributed about $22 million to the Central Bank of Iran and to the Islamic Revolutionary Guard Corps and its Quds Force [1][2]. A wider cut of the same analysis puts nearly $2 billion in transactions connected to identified Iranian actors or to known or suspected terrorist groups [2].
The North Korea file is narrower and named. FinCEN said MEXC transmitted funds for a DPRK financial facilitator and put at about $350,000 the amount received by Sim Hyon Sop between June and September 2025, more than two years after OFAC designated him [2].
Cybercrime sits in yet another bucket. FinCEN assessed that at least $1.99 billion tied to cybercrime activity moved through MEXC between May 2021 and May 2026, including more than $37.9 million in suspected ransomware payments and exposure to more than 125 ransomware variants [2].
Treasury described “severe deficiencies” in MEXC’s anti-money-laundering controls, despite the platform’s claim that it keeps customer checks in place and forbids users in Iran and North Korea [1].
Why the legal hook is Russia
Section 9714 lets the Treasury secretary act if reasonable grounds exist to conclude that a foreign financial institution is of primary money-laundering concern “in connection with Russian illicit finance.” The secretary may then require special measures or prohibit certain transmittals of funds [2]. FinCEN chose the funds-transmittal ban and issued it by order, a seperate path from a section 311-style rulemaking under the USA PATRIOT Act [2].
CoinDesk called MEXC the largest crypto exchange yet hit under that provision, ahead of Bitzlato in 2023 and PM2BTC in 2024, both of them far smaller venues [4].
What MEXC said
MEXC posted its own statement. It said it is aware of the FinCEN order issued on 6 November and is reviewing it with its legal and compliance teams [3]. “MEXC is operating normally, and user assets remain secure,” the exchange wrote [3].
It said it takes the concerns raised seriously and intends to engage constructively with FinCEN and other authorities. It has also begun an independent review of its anti-money-laundering and sanctions controls [3].
The clock that has not started
The next fact to watch is the Federal Register notice, because that is what starts the 30 days. Another is whether FinCEN grants any exemption, and how banks, money transmitters and other counterparties that still touch U.S. institutions respond.
MEXC can keep running beyond those rails. The order does not take the platform offline for the rest of the planet. What it does, once the notice has occured in the Federal Register and the 30 days have run, is keep covered U.S. financial institutions out of any funds transfer with that exchange [2].
Market pulse, on the market page.
Sources
Type of source in parentheses.
- U.S. Department of the Treasury, Operation Economic Outcast Severs MEXC Global’s Access to the U.S. Financial System, release sb0685, 6 November 2026. The “at least $16 billion” figure, the Russian, Iranian and cybercrime breakdown, Scott Bessent’s remarks, Operation Economic Outcast and the 30-day Federal Register fuse. (Primary)
- FinCEN, Imposition of Special Measure Prohibiting the Transmittal of Funds Involving MEXC Global, section 9714(a) order, PDF dated 6 November 2026 and pending Federal Register publication. The primary money-laundering-concern finding, the $16.7 billion figure, the operative ban, definitions (including bitcoin as CVC), named affiliates, Jimmy L. Kirby’s signature and the cover note that publication is still pending. (Primary)
- MEXC, Statement Regarding FinCEN’s November 6 Order, the exchange’s statement on the 6 November 2026 order. (Primary)
- CoinDesk, U.S. Treasury moves to cut off crypto exchange MEXC over $16 billion in alleged illicit flows, Francisco Rodrigues, 7 November 2026. The claim that MEXC is the largest exchange yet targeted under section 9714, with Bitzlato (2023) and PM2BTC (2024) as earlier, smaller cases. (Secondary, press)
- Federal Register, search of the public document index, the documents API and the public-inspection API, 8 November 2026. No published notice and no public-inspection item for this MEXC order. (Primary, own check)
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Last updated: November 8, 2026