FinCEN designates MEXC as Binance blocks transfers

The Federal Register order, published November 10 under section 9714(a) of the Combating Russian Money Laundering Act, designates MEXC Global as a financial institution of primary money laundering concern tied to Russian illicit finance. The measure restricts how covered financial institutions can transmit funds involving the Seychelles-incorporated exchange and takes effect 30 days after publication — Dec. 10, 2026.

Binance didn’t wait. Its November 10 announcement said it would stop processing transactions involving MEXC or its affiliates immediately. Withdrawal requests routed to MEXC entities get declined.

It’s the FinCEN designation that Binance says leaves it without the ability to process those transactions — the exchange is citing the order as the operative constraint, not a voluntary commercial decision.

For users, the immediate consequences are specific. MEXC-bound withdrawals from Binance are rejected now. Deposits coming in from MEXC are temporarily withheld for compliance review, with no review timeframe stated in the announcement. Binance also says accounts transacting with MEXC entities through its platform may face further restrictions, up to and including offboarding. The announcement doesn’t explain how reviews will be conducted, and this desk can’t establish from available documents that every affected deposit will be frozen permanently.

MEXC is not a minor venue by the figures in the record. FinCEN describes it as a convertible virtual currency exchanger founded in 2018, operating in more than 170 countries, processing over $1 billion in daily transactions as of June 2026, against roughly $5 billion in reserve assets — that daily volume works out to about 20% of stated reserves ($1 billion ÷ $5 billion × 100). As of December 2025, MEXC held approximately 9% of the global centralized CVC-exchange market by trading volume. CoinMarketCap ranked it ninth among spot exchanges, with Binance ranked first, according to Decrypt. Binance’s response therefore attaches the concrete effects already described — rejected withdrawals, withheld deposits, potential offboarding — to the FinCEN designation at the largest spot exchange by that ranking, even though the order itself applies to covered financial institutions and “certain transmittals” involving MEXC.

FinCEN says MEXC facilitated transfers by Russia-affiliated illicit actors, including sanctions evasion and activity tied to Russian darknet markets. It also alleges MEXC processed transactions benefiting Iran and its proxies, financial facilitators of the DPRK, and other cybercrime actors.

The headline figure: at least $16 billion in suspicious transactions processed from May 2021 through May 2026. Of that total, roughly $1.5 billion was linked to Russian sanctions evasion — approximately 9.4% of the aggregate ($1.5 billion ÷ $16 billion = 0.09375). The $16 billion figure is attributed to FinCEN in reporting on the order. No MEXC response or alternative account is included in the available sources, and the provided record contains no prior comparable FinCEN action against MEXC for a historical comparison.

Dec. 10, 2026 is when FinCEN’s broader restriction on covered financial institutions kicks in. Binance’s operational block is already in place.