The United Kingdom has imposed sanctions on 18 entities and individuals linked to what officials described as Russia’s “illicit financial infrastructure,” including crypto exchange HTX (formerly Huobi) and the issuer of the ruble-backed A7A5 stablecoin.
The sanctions package from the U.K. Foreign, Commonwealth & Development Office marks one of the country’s strongest moves yet against Russia’s use of cryptocurrencies and alternative payment systems to evade Western restrictions.
First-of-Its-Kind Banking-Style Sanctions
For the first time, the U.K. applied Regulation 17A of its Russia sanctions regime to crypto exchanges – a tool previously used against sanctioned banks. Under the rules, U.K. financial firms and crypto service providers can’t maintain correspondent relationships with the designated entities or process payments tied to them. Companies may also need to freeze funds and trace blockchain transactions linked to sanctioned platforms.
Blockchain analytics firm Elliptic said the rules could require firms to trace transactions across multiple blockchain “hops,” meaning compliance checks would extend beyond direct counterparties to wallets and exchanges appearing anywhere in a transaction chain.
HTX Under Fire
HTX, one of the world’s largest crypto exchanges with roughly $3.3 trillion in trading volume last year, is suspected of providing services to both the A7 payments network and Garantex, a Russian crypto exchange previously sanctioned by Western authorities. Garantex rebranded to Grinex earlier in the year and halted operations in April after a $13 million “state-backed” hack.
HTX has rejected the allegations. The exchange told CoinDesk it refused A7A5’s listing application and had no commercial relationship with the stablecoin issuer. “HTX has never been involved in the A7A5 project or its listing,” a spokesperson said.
The A7A5 Ruble Stablecoin
A major focus of the sanctions package is the Kremlin-backed A7 payments network, which British officials say helped process proceeds from Russian oil sales and supported military procurement. The U.K. says the network moved more than $90 billion last year.
Central to the network is A7A5, a ruble-backed stablecoin described by crypto security experts as increasingly central to Russia’s sanctions evasion efforts. The stablecoin provides a digital onramp for Russian entities to convert rubles into crypto assets that can move across borders without traditional banking oversight.
Sanctions Target Kyrgyzstan Gold-Backed Stablecoin
Britain also sanctioned Open Joint Stock Company “Virtual Asset Issuer,” a Kyrgyzstan-linked company behind the USDKG gold-backed stablecoin, along with several individuals accused of sanctions-evasion activity. Among them were Sergey Mendeleev, Igor Gorin, Irina Akopyan, and Israeli national Liran Cohen.
Regulatory Ripple Effects
Elliptic said other regulators are likely to watch closely as Britain tests a new model for applying traditional financial sanctions rules to digital asset markets.
The move comes amid a broader international push to tighten crypto sanctions enforcement. The U.S. Treasury and European Union have both intensified scrutiny of crypto platforms suspected of helping Russian sanctions evasion, with multiple enforcement actions in 2026.
The sanctions took effect immediately on May 26.
FAQ
Why did the UK sanction HTX crypto exchange?
The UK sanctioned HTX on “reasonable grounds to suspect” the exchange was providing financial services to the A7 payments network and Garantex, a Russian crypto exchange connected to sanctions evasion. HTX denies the allegations and says it rejected A7A5’s listing application.
what’s the A7A5 ruble stablecoin?
A7A5 is a ruble-pegged stablecoin linked to the Kremlin-backed A7 payments network. UK officials say the network moved over $90 billion last year, helping Russia process proceeds from oil sales and procure military supplies.
How do the new UK crypto sanctions work?
The UK applied Regulation 17A, a banking-style sanctions tool, to crypto exchanges for the first time. UK financial firms must freeze funds, trace blockchain transactions linked to sanctioned platforms, and can face compliance obligations extending multiple blockchain “hops” beyond direct counterparties.
