FinCEN moves to cut MEXC off from the US financial system over $16 billion in alleged illicit flows

The US Treasury's FinCEN issued a Section 9714 order on November 6 barring US financial institutions from sending funds to or receiving funds from MEXC Global, citing at least $16 billion in transactions tied to Iranian, Russian and North Korean sanctions evasion. The order takes effect 30 days after Federal Register publication; MEXC says it is operating normally and has launched an independent AML review.

The US Treasury has used one of its heaviest anti-money-laundering tools against one of the world’s twenty largest crypto exchanges. On Friday, November 6, 2026, the Financial Crimes Enforcement Network (FinCEN) issued an order under Section 9714 of the Combating Russian Money Laundering Act that, once in force, will prohibit every US financial institution from transmitting funds to or from MEXC Global — in dollars or in crypto. Treasury says the Seychelles-incorporated exchange handled at least $16 billion in illicit transactions over five years. MEXC says it is operating normally and has opened an independent review of its controls.

What the order does

According to the Treasury press release, the order was issued under section 9714(a) of the Combating Russian Money Laundering Act and finds MEXC Global to be a foreign financial institution “of primary money laundering concern.” The special measure it imposes is blunt: covered US financial institutions may not engage in any transmittal of funds from or to MEXC Global, and violations can carry civil or criminal penalties. The order does not change existing Bank Secrecy Act obligations such as suspicious activity reporting, and it does not alter sanctions administered by OFAC.

Two points matter for anyone with money on the platform. First, this is not an OFAC designation: MEXC is not on the SDN list, no property is blocked, and the order does not freeze customer balances or require anyone to sell, as a scope breakdown relayed by blockchainreporter.net notes. The constraint lands on the banking layer — dollar on- and off-ramps that run through US banks, brokers or money transmitters. Second, the order is not yet in force. It takes effect 30 days after publication in the Federal Register, and as of November 9 no such notice had appeared, so the countdown has not started.

The finding covers MEXC Global, its subsidiaries, branches, offices and successors operating outside the United States. The same report lists the entities named in the order: MEXC Global Ltd / MX Global Ltd (Seychelles), MEXC Estonia OÜ, GIDA Technology AG (Switzerland), MXC Global Ltd (UK), and two Singapore entities marked as former.

The allegations

Treasury’s figures cover May 2021 to May 2026. In that window, FinCEN says MEXC processed at least $16 billion in funds tied to sanctions evasion, cybercrime and other illicit activity. The breakdown in the release:

• Russia: roughly $1.5 billion linked to Russian sanctions evasion, including $232 million in direct transactions with entities sanctioned by the US, EU or UK. FinCEN says MEXC was still processing transactions with Garantex — designated by OFAC in April 2022 — and its successor Grinex as recently as June 2026. It also cites at least $26 million benefiting the sanctioned A7 network and nearly $200 million linked to the A7A5 rouble-backed stablecoin.
• Iran: about $1 billion in direct transactions with more than 40 identified Iranian crypto exchanges, some of them sanctioned, plus roughly $22 million for the Central Bank of Iran and the Islamic Revolutionary Guard Corps, including its Qods Force.
• North Korea and cybercrime: named in the release as part of the $16 billion total, without a separate figure.

Treasury Secretary Scott Bessent framed the action as a choice for intermediaries, saying that “financial institutions cannot have it both ways” when it comes to supporting the Iranian regime and keeping access to the US system. The release describes MEXC as founded in 2018, processing more than $1 billion in daily transactions with about $5 billion in reserves as of September 2026, and offering more than 3,000 cryptocurrencies and tokenized assets.

It is worth keeping the arithmetic in view. Sixteen billion dollars over five years is a serious number, but against a venue that reports more than $1 billion in daily volume it is a small share of throughput. These are allegations in an enforcement document, not adjudicated findings, and the order itself acknowledges that MEXC says its policies bar Iranian and North Korean users.

Why this tool, and why now

Section 9714 is a 2021 statute aimed at Russian illicit finance. Previous targets were small: Bitzlato in 2023 and PM2BTC in 2024. CoinDesk points out the tension in the framing: Treasury announced the MEXC order under Operation Economic Outcast, the campaign it launched in August to cut Iran off from global finance, yet the statute only reaches foreign institutions tied to Russian illicit finance — so the legal basis rests on the Garantex, Grinex and A7 allegations even as the headline is Iran.

Timing also matters. Last month MEXC announced it would stop serving users in Russia and Belarus, per CoinDesk. That exit came too late to change the five-year record Treasury is relying on.

MEXC’s response and early market reaction

In a statement published on November 7, MEXC said it is reviewing the order with its legal and compliance teams, that the platform “is operating normally, and user assets remain secure,” and that it has started an independent review of its anti-money-laundering and sanctions controls. It said it intends to engage constructively with FinCEN and other regulators.

The first day’s flows were visible but not dramatic. Per The Crypto Basic, citing CryptoSlate and DefiLlama-tracked wallets, MEXC saw about $126 million in net outflows in the 24 hours around the announcement; CEO Vugar Usi said deposits and withdrawals continued to function and called the pick-up in withdrawals “orderly.” Wallet movements alone do not show whether an exchange can cover customer balances, and the same report says so. Separately, Reserve said it and its market-making partners would stop providing trading liquidity for its LCAP and CMC20 tokens on MEXC and withdraw the related capital — the kind of voluntary pullback by counterparties that often does more damage than the order’s formal reach.

A second FinCEN move on the same day

Friday also brought a deregulatory headline from the same agency. FinCEN and the Federal Reserve Board jointly withdrew their December 2020 proposal to lower the cross-border Travel Rule threshold from $3,000 to $250 and to extend it explicitly to convertible virtual currency. The withdrawal notice was published in the Federal Register on November 9; TFTC reports the agencies cited the more than five years that had passed and a changed industry landscape, and notes it is the third crypto surveillance rulemaking withdrawn since October. The existing $3,000 threshold remains in force for crypto firms and banks alike; our explainer on how the crypto Travel Rule works covers what that obligation actually requires.

Read together, the two actions describe the current US posture fairly precisely: lighter rules for compliant intermediaries, and the harshest available measures for venues Treasury believes serve sanctioned actors.

What it means for users and for the market

For US-connected users, the practical risk is the dollar rail, not the trading book. Once the order is effective, a bank or money transmitter that moves funds for MEXC exposes itself to penalties, so withdrawals to US accounts will become the hard part. Non-US users are not barred from trading, but a venue cut off from US correspondent flows typically sees stablecoin liquidity, market-maker participation and listing partners thin out over time.

For the industry, the lesson is about counterparty screening rather than headline compliance. MEXC, per Treasury, had AML policies on paper; the allegation is that it kept transacting with a designated exchange for four years after the designation. Exchanges that want to stay inside the US perimeter now have a very concrete example of what FinCEN considers disqualifying. If you are choosing where to keep funds, our guides to how to evaluate a crypto exchange and crypto regulation by jurisdiction cover the licensing and banking questions that matter here, and our ranking of the best crypto exchanges is limited to venues with verifiable regulatory status.

The bottom line

FinCEN has ordered US financial institutions to stop moving money to or from MEXC Global, alleging at least $16 billion in illicit flows between 2021 and 2026, including dealings with Garantex, Grinex and Iranian exchanges. It is the largest exchange ever targeted under Section 9714, but the measure is narrower than a sanctions designation: no assets are frozen, non-US trading continues, and the prohibition only bites 30 days after Federal Register publication, which had not happened as of November 9. MEXC has not contested the figures publicly, says it is operating normally, and has commissioned an independent review. The open questions are the publication date and whether banks and market makers wait for it.

News summary based on the official release and reporting cited above, current as of November 9, 2026. Allegations are those of the US Treasury and have not been tested in court; figures reflect the cited sources. For general information only; not legal or financial advice.