The United Kingdom has sanctioned a group of crypto exchanges and payment firms accused of helping Russia evade sanctions, in a package that CoinDesk reported on Thursday. According to the U.K. government, two of the targeted businesses processed or facilitated transactions involving A7, a payments network backed by the Kremlin. The action fits a pattern: Western governments have spent the last year working their way down the same supply chain, from the stablecoin to the exchanges that list it to the payment platforms that move it.

Who was targeted

The named entities include Xeltox Enterprises, a Canadian-registered company behind the exchanges Cryptomus, Heleket, and Certa Payments; TokenSpot, a Kyrgyzstan-based exchange; Processing KG, which operates the VexPay payment platform; Tsunami Payments; and Ulan Bukabaev, a director of Processing KG. The crypto firms were part of a much larger U.K. package of 38 new designations that also covered Russian oil producers, 12 shadow-fleet tankers, and suppliers of machinery and electronics that the U.K. says support Russian missile and drone production.

A note on counting: CoinDesk's headline describes three exchanges, while the body of its report names several exchange and payment brands grouped under a smaller number of companies. Whether the total is three, four, or more depends on whether you count corporate entities or consumer-facing brands. The government's official designation list is the authoritative tally.

What A7 is, and why it keeps coming up

A7 is the network at the center of this story. It operates A7A5, a ruble-pegged stablecoin that the U.K. says is used to bypass sanctions on Russia's financial sector. A7 claimed last year to have moved more than $90 billion, according to the U.K. statement. That figure comes with a large asterisk: blockchain-data firms have disputed how much A7A5 activity actually takes place, and a company's own claim about volume is not independent evidence of it. Both things can be true at once. The network may be much smaller than advertised, and still be real enough, and useful enough to sanctioned businesses, to attract repeated action from governments.

A pattern of escalating action

This is not the first U.K. move against this infrastructure. In August 2025, the government sanctioned the exchange Grinex and several associated individuals and entities, describing A7A5 as a ruble-backed token that moved $9.3 billion on a dedicated exchange in four months. In May 2026 it sanctioned additional exchanges for helping Russia evade sanctions, including Huobi and HTX, according to CoinDesk. The United States acted against companies and executives behind A7A5 and related exchanges in 2025, and the European Union's 21st sanctions package, adopted in July 2026, targeted 14 crypto companies and four designations related to the A7 network.

Read together, the actions show governments learning to target each layer in turn. First the token, then the exchange where it trades, then the payment processors that connect it to the ordinary financial system. Each round narrows the places a sanctioned business can convert crypto into spendable money, which is the point at which sanctions evasion has to touch the regulated world.

What changes for the businesses involved

Under the designations, assets held in the U.K. by the named entities are frozen, and British financial institutions are barred from processing payments to, from, or through several of the firms. For a crypto exchange with little direct exposure to the U.K., the legal effect may be modest. The practical effect is wider, because sanctions designations tend to propagate. Banks that offer fiat on-ramps, other exchanges, and stablecoin issuers that screen their counterparties all treat a U.K. designation as a reason to cut ties, and a platform that loses those connections stops being useful to the customers it was built to serve.

Why it matters

For anyone who builds or uses crypto services, the lesson is that compliance exposure now flows through counterparties, not just through your own conduct. An exchange that lists the wrong token, or a payment platform that routes the wrong flows, can find itself on a government list without ever having been the original target. It also bears on the broader debate over stablecoin oversight. Stablecoins are often defended as more transparent than cash, and these actions show part of what that means: the same public ledger that lets sanctioned networks operate also lets investigators and analytics firms map them. We covered the U.S. side of financial-crime enforcement in an earlier piece.

Further reading

Frequently asked

What is A7 and what is A7A5?

A7 is a payments network that the U.K. government describes as backed by the Kremlin. It operates A7A5, a ruble-pegged stablecoin that the U.K. says is used to bypass sanctions on Russia's financial sector. In short, A7A5 gives sanctioned Russian businesses a way to settle payments on public blockchains instead of through banks that Western authorities can reach.

What does a U.K. sanction actually do to a crypto exchange?

Assets held in the United Kingdom by the named entities are frozen, and British financial institutions are barred from processing payments to, from, or through several of the firms. In practice, the bigger effect is reputational and operational: banks, other exchanges, and stablecoin issuers that deal with a sanctioned platform risk breaching sanctions themselves, so many cut off contact.

Does this mean crypto is mainly a sanctions-evasion tool?

No. This action targets specific businesses accused of specific conduct, and blockchain-analytics firms have disputed how much A7A5 activity actually occurs, so claims about the scale of evasion are contested. Public blockchains are also unusually traceable compared with cash or informal transfer networks, which is part of why governments can map these networks at all.