The November 6 action, issued under Section 9714 of the Combating Russian Money Laundering Act, identifies the Seychelles-based exchange as a financial institution of primary money laundering concern in connection with Russian illicit finance. Treasury’s accompanying announcement described the suspected transactions as totaling at least $16 billion.
MEXC has since acknowledged the order, saying its trading, deposit and withdrawal services remain operational. The exchange said it is reviewing the allegations with its legal and compliance teams and has initiated an independent review of its anti-money laundering and sanctions controls.
How Does the MEXC Transfer Ban Work?
The order prohibits US financial institutions from engaging in funds transfers to or from MEXC Global, including transfers involving virtual currencies. It extends to the exchange’s foreign subsidiaries, branches, offices and successor entities.
Unlike a conventional Office of Foreign Assets Control designation, the FinCEN measure does not automatically freeze MEXC’s assets or place the exchange on the US sanctions blacklist. Instead, it restricts the ability of American financial institutions to process transactions involving the platform.
The restrictions will take effect 30 days after publication in the Federal Register. As of November 7, the publication date had not been confirmed, leaving the precise commencement date undetermined. The order specifies no expiration date, although FinCEN retains authority to impose conditions or grant exemptions.
Once effective, the prohibition could disrupt MEXC’s access to US banking relationships, dollar payment channels and other financial intermediaries subject to American jurisdiction.
FinCEN said violations could result in civil or criminal penalties. Existing obligations under the Bank Secrecy Act and OFAC-administered sanctions remain unchanged.
Investor Takeaway
The measure targets MEXC’s access to US financial infrastructure rather than directly freezing customer assets, but payment and settlement channels involving American institutions face restrictions.
What Did FinCEN Find in MEXC’s Transactions?
FinCEN identified nearly $1.5 billion in transactions connected to Russian sanctions evasion, including approximately $232 million in direct transactions with entities sanctioned by the United States, European Union or United Kingdom.
The agency said MEXC continued processing transactions involving sanctioned Russian exchange Garantex and its alleged successor Grinex as recently as June 2026.
The findings follow earlier US sanctions against Garantex and Grinex, which Treasury accused of facilitating illicit payments and attempting to preserve access to cryptocurrency infrastructure after enforcement action.
FinCEN also identified at least $26 million in transactions benefiting the sanctioned A7 network and nearly $200 million connected to the ruble-backed A7A5 stablecoin.
The A7A5 stablecoin has previously attracted sanctions scrutiny because of its alleged role in helping Russian businesses move funds outside conventional banking channels.
Beyond Russia, FinCEN identified approximately $1 billion in direct transactions involving more than 40 Iranian cryptocurrency exchangers. It separately identified around $22 million in transactions connected to the Central Bank of Iran, the Islamic Revolutionary Guard Corps and its Qods Force.
The agency also cited transactions involving North Korean financial facilitators, ransomware operators and darknet markets. These findings form part of FinCEN’s administrative assessment, rather than a criminal conviction establishing wrongdoing by MEXC.
What Has MEXC Said About the Order?
In a statement released after the Treasury announcement, MEXC said user assets remained secure and normal platform services were continuing.
The exchange said it intended to engage with FinCEN and other relevant regulators while conducting an independent review of its compliance arrangements.
However, MEXC did not directly address FinCEN’s transaction figures, disclose the scope of its US financial relationships or explain how it expects to maintain payment connectivity once the restrictions become effective.
The company also did not announce changes to customer access or provide details about a possible legal challenge. The order itself does not establish that customer assets have been lost or that the exchange is insolvent.
According to Treasury, MEXC processed more than $1 billion in daily transactions and maintained approximately $5 billion in reserve assets in 2026. These figures illustrate the platform’s scale, although the order does not establish how much of its activity depends on US financial institutions.
Investor Takeaway
MEXC says operations remain unaffected, but the financial impact will depend on its reliance on US-linked payment channels and its ability to maintain alternative settlement arrangements.
Why Is Treasury Using Section 9714?
The action forms part of Operation Economic Outcast, Treasury’s campaign targeting financial institutions and networks accused of enabling Iranian sanctions evasion.
Section 9714 allows Treasury to restrict transactions involving foreign financial institutions found to present primary money laundering concerns connected to Russian illicit finance. FinCEN chose an order rather than a longer rulemaking process, citing continuing transactions involving suspected illicit actors.
The agency’s action follows broader efforts to identify financial networks operating outside traditional banking channels. Earlier FinCEN findings traced approximately $9 billion in suspected Iranian shadow-banking activity through international intermediaries.
For MEXC, the next developments will be publication of the order in the Federal Register, the exchange’s response to FinCEN’s findings and any changes to its payment relationships. The prohibition creates a potentially lasting constraint on US financial access even if trading continues through the exchange’s international operations.