Based on Section 9714(a) of the Combating Russian Money Laundering Act, which was issued on November 6, 2026, MEXC was designated as a primary money laundering concern. In the event the order goes into effect, US financial institutions will be prohibited from processing fund transfers, including cryptocurrency transactions, to and from MEXC. Additionally, MEXC's subsidiaries and overseas operations will be restricted. 

A large part of the Treasury Department's Operation Economic Outcast initiative aims to disrupt financial channels used by Iran to circumvent international sanctions, and the actions form part of that initiative. 

While the MEXC order is based on allegations of the exchange's connection to Russian illicit finance, it is also based on FinCEN's finding that the platform processed approximately $1.5 billion in transactions related to Russian sanctions evasion over the past five years. This activity was reported to involve dealings with a sanctioned cryptocurrency exchange Garantex and its successor, Grinex, with transactions continuing until June 2026. 

Moreover, the agency identified approximately $200 million linked to the stablecoin A7A5, which has been associated with Russian sanctions evasion activities. In addition, substantial financial links were discovered involving Iranian entities as part of the investigation. MEXC reported processing over $1 billion in direct transactions with more than 40 Iranian cryptocurrency exchanges, according to FinCEN. Further transactions reportedly included payments related to sanctioned actors, as well as those involving the Iranian central bank and the Islamic Revolutionary Guard Corps. 

Along with to sanctions-related activity, Treasury accused the exchange of processing funds related to ransomware operations, scams online, and darknet marketplaces. As a result of these findings, FinCEN has expressed concerns about the platform's anti-money laundering (AML) procedures and controls on customer identification. 

According to FinCEN, the alleged activity was caused by severe weaknesses in MEXC's compliance systems, which made it possible to conduct transactions involving high-risk entities. It was established in 2018 and operates in over 170 countries, providing access to thousands of cryptocurrencies and tokenized assets. 

As a result of its scale and involvement in illegal financial flows, the enforcement action has been regarded as an important step forward in the US government's efforts to combat cryptocurrency-based sanctions evasion. 

Upon submitting a response to the enforcement action, MEXC confirmed that discussions have begun with US authorities in response to the allegations. On November 10, CEO Vugar Usi announced that the exchange had established a communication channel with FinCEN with the assistance of an international law firm.

According to reports, the regulator acknowledged receipt of MEXC's written request, while MEXC expressed its willingness to cooperate in the ongoing regulatory process. The exchange's services remain operational, and deposits, withdrawals, and cryptocurrency trading have not been disrupted, according to Usi. According to reports, the company has prepared a follow-up plan and intends to provide further updates in the event significant developments arise. 

MEXC had earlier indicated that its legal and compliance teams had begun an independent assessment of its anti-money laundering and sanctions controls, following the November 6 order. According to the exchange, user assets remain secure and the exchange intends to cooperate with FinCEN and other appropriate regulatory authorities as part of its ongoing efforts. 

In order to prevent US financial institutions from processing transfer involving the exchange, this enforcement action does not shut down MEXC's global operations or freeze customer accounts immediately. MEXC is expected to face wider difficulties beyond its direct US financial connections following the publication of the order in the Federal Register. The order is scheduled to take effect 30 days after publication. 

The Blockchain Investigator ZachXBT reported on November 10 that several other offshore centralized exchanges that are either limited or do not have a US presence have started prohibiting MEXC users from transferring assets. However, it was not revealed which exchanges and what the specific scope of these restrictions would be, however it has been suggested that the enforcement action could affect transaction routes outside of the US financial system. 

In addition, this case highlights the increased scrutiny of offshore cryptocurrency platforms that process transactions involving sanctioned entities and cybercriminals. A number of factors may contribute to digital asset exchanges becoming channels for illegal funds to flow across borders, including weak customer verification, inadequate transaction monitoring and limited screening of high-risk counterparties. 

The immediate challenge for MEXC is to address FinCEN compliance concerns while maintaining access to international financial services. It is anticipated that the platform will be able to address the allegations and limit further restrictions based on its engagement with US regulators and independent review of its compliance framework. 

Taking such action marks a significant step forward in efforts of the US government to restrict illicit financial networks operating through cryptocurrency exchange platforms. The extent to which MEXC cooperates with FinCEN and its ability to address the alleged compliance violations will determine the exchange's future access to the US financial market.