The United States attracts global cryptocurrency exchanges.

The U.S. Treasury’s FinCEN issued an order barring U.S. financial institutions from processing fund transfers involving MEXC, alleging the Seychelles-based exchange handled at least $16 billion tied to sanctions evasion and cybercrime from May 2021 to May 2026, with the ban taking effect 30 days after Federal Register publication. The action extends Washington’s push to fold offshore crypto trading venues into the U.S. regulatory perimeter, following Binance’s 2023 settlement of more than $4.3 billion with a five-year monitorship, its 2024 USDC partnership with Circle, a $2 billion MGX investment settled in USD1, and CZ’s October 2025 pardon. ICE’s March 2026 investment in OKX at a $25 billion valuation, with a board seat and planned U.S.-regulated futures and tokenized NYSE equity access, came after OKX’s Seychelles entity paid over $504 million in a 2025 plea deal. Garantex, sanctioned by OFAC in April 2022, saw its domains and servers seized in March 2025 alongside indictments and over $26 million frozen, while successor Grinex and the ruble-backed A7A5 token were also sanctioned. The pattern matters because access to dollar rails and U.S. partners is becoming conditional on compliance, and the next test is whether MEXC negotiates or loses its U.S. financial links.