Britain imposed its most sweeping cryptocurrency sanctions to date Monday, targeting exchanges including Huobi Global S.A., the operator of HTX exchange, alongside payment networks and individuals accused of helping Russia evade Western restrictions and finance its war in Ukraine.

Market Context

The U.K. Foreign, Commonwealth & Development Office sanctioned 18 entities and individuals linked to what officials described as Russia's "illicit financial infrastructure used to move funds, procure goods, and sustain its war." The action marks the first time Britain has applied Regulation 17A of its Russia sanctions regime—previously reserved for banks—to cryptocurrency exchanges.

Analysis

The package centers on the Kremlin-backed A7 payments network, which British officials say processed proceeds from Russian oil sales and supported military procurement. According to U.K. estimates, the network moved more than $90 billion last year. Blockchain analytics firm Elliptic said HTX is suspected of providing services to both the A7 network and Garantex, a Russian crypto exchange previously sanctioned by Western authorities that rebranded to Grinex earlier this year.

Also targeted was Open Joint Stock Company "Virtual Asset Issuer," a Kyrgyzstan-linked company behind the USDKG gold-backed stablecoin. Named individuals include Sergey Mendeleev, Igor Gorin, Irina Akopyan, and Israeli national Liran Cohen.

Under the new rules, U.K. financial firms and crypto service providers cannot maintain correspondent relationships with designated entities or process payments tied to them. Companies may also need to freeze funds and trace blockchain transactions linked to sanctioned platforms—potentially across multiple "hops" through wallets and exchanges appearing anywhere in a transaction chain.

"Other regulators are likely to watch closely as Britain tests a new model for applying traditional financial sanctions rules to digital asset markets," Elliptic noted in a blog post accompanying the announcement. Garantex, now operating as Grinex, halted operations last month following a $13 million "state-backed" hack, according to Elliptic.

Key Numbers

- $3.3 trillion: HTX's reported trading volume in 2025, making it one of the world's largest crypto exchanges by volume

- $90 billion: Estimated annual transaction value processed by the A7 payments network, per U.K. estimates

- $13 million: Amount stolen in the Garantex/Grinex hack that preceded the exchange's shutdown

- 18: Number of entities and individuals sanctioned under the new package

What to Watch

Compliance implications for crypto firms with any U.K. nexus, as the rules require tracing beyond direct counterparties. Market reaction from HTX and affected stablecoin issuers will be closely monitored. The broader regulatory signal sent to other jurisdictions considering similar measures against Russian-linked crypto activity.

The sanctions took effect immediately. CoinDesk reached out to Huobi for comment but did not receive a response by publication time.