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Update (May 27, 2026, 5 pm UTC): This article has been updated to include comments from Global Ledger head of investigations Vladyslav Syrotin.
Update (May 28, 2026, 9 am UTC): This article has been updated to include comments from a spokesperson for HTX.
Sanctioned crypto exchange HTX is pushing back against the United Kingdom’s decision to blacklist Huobi Global S.A., the Panamanian company behind the platform, over allegations it helped Russia move money through a shadow “A7” network.
In its latest Russia sanctions <a href="https://www.gov.uk/government/news/uk-cracks-down-on-backdoor-russian-sanctions-evasion-with-tough-new-measures" rel="noopener noreferrer nofollow">package</a> on May 26, the UK accused Huobi Global of providing financial services and economic resources to entities already under restrictions for supporting Moscow’s war economy.
The government said it was targeting “crypto and illicit finance networks” exploited by Russia, including the Kremlin-backed A7 “shadow” system that helps channel funds into the country’s war economy.
The sanctions and new blockchain analysis highlight growing Western concern that Russian-linked actors continue to use major crypto platforms to move funds despite sweeping restrictions imposed since Moscow’s invasion of Ukraine.
The package of 18 designations targets A7-linked infrastructure, including a Kyrgyz bank and what the Foreign Office described as “a major global cryptocurrency exchange” suspected of funnelling more than $1.5 billion back into the Kremlin’s hands, subjecting them to UK asset freezes and bans on the provision of financial services.<img alt="HTX denies UK sanctions allegations as new data flags $7.6B Russia-linked flows" height="807" src="https://s3-images.ctmedia.io/media/content/sanc.png" width="1172">
UK sanctions include Huobi Global. Source: <a href="https://www.gov.uk/government/news/uk-cracks-down-on-backdoor-russian-sanctions-evasion-with-tough-new-measures" rel="noopener noreferrer nofollow">UK government.</a>
In a Tuesday <a href="https://x.com/HTX_Global/status/2059383795783201259?s=20" rel="noopener noreferrer nofollow">post</a> on X, HTX argued the designation applies only to Huobi Global as a separate legal entity and said its online exchange and user funds remain unaffected.
A spokesperson for HTX told Cointelegraph the exchange has long maintained sanctions monitoring and blocking procedures, disputed the accuracy of the blockchain attributions cited in the reports and said the firm plans to challenge the designation. The spokesperson added that HTX does not operate in the UK or serve UK users.
However, a new blockchain analytics <a href="https://blog.globalledger.io/hubfs/Press%20Materials/Sanctioned%20HTX.pdf" rel="noopener noreferrer nofollow">report</a> shared with Cointelegraph Wednesday claims the platform processed billions of dollars tied to Russian counterparties and darknet markets.
<h2 id="billions-of-dollars-in-high-risk-flows">Billions of dollars in high-risk flows</h2>
Global Ledger said the exchange processed about $21.06 billion in “high-risk” crypto flows between 2021 and May 2026. Of that total, at least $7.64 billion was linked to Russian high-risk entities and darknet markets, including Garantex, its successor Grinex, A7A5 and the now-defunct Hydra marketplace, alongside other sites such as Kraken darknet and Mega darknet.
Global Ledger head of investigations Vladyslav Syrotin told Cointelegraph that “high-risk” activity in the study was defined using internal risk-scoring models ranging from 0 to 100, with a threshold above 70 applied for this analysis, covering sanctioned entities, darknet markets, scams, and other illicit typologies. He said the firm’s attribution data is continuously updated and based on onchain evidence used across both client and internal systems.
Related: <a rel="noopener noreferrer nofollow">US sanctions Sinaloa cartel-linked Ethereum addresses</a>
The report also flagged sizeable flows involving Huione Group, Nobitex, Hezbollah and North Korea-linked Lazarus, suggesting HTX’s exposure may extend beyond Russia.
UK officials on Tuesday said HTX helped move about $1.5 billion back to Russia’s coffers, according to Bloomberg, a fraction of the more than $7.6 billion in Russia-linked flows estimated by Global Ledger, based on multi-year onchain tracing of Bitcoin, Ether and Tether on Tron.<img alt="HTX denies UK sanctions allegations as new data flags $7.6B Russia-linked flows" height="677" src="https://s3-images.ctmedia.io/media/content/gl.png" width="852">
HTX processed funds linked to high-risk entities. Source: Global Ledger
Syrotin said the UK’s action signals “the scale and consistency” of sanctions evasion activity, noting that exchanges have processed both direct and indirect flows tied to sanctioned entities, scams and hacks. He added that HTX continued serving Russian clients into 2023 before restricting the country in November that year.
He also warned that sanctions evasion has become a speed problem for compliance teams, arguing that illicit funds can be laundered through swaps, bridges and mixers in minutes; often faster than detection systems can respond.
<h2 id="uk-pressure-mounts-on-htx">UK pressure mounts on HTX</h2>
The UK's Financial Conduct Authority has also been tightening the screws on HTX. It <a href="https://www.fca.org.uk/news/press-releases/fca-action-against-htx-illegal-financial-promotions" rel="noopener noreferrer nofollow">began</a> High Court proceedings in October 2025 against Huobi Global and individuals said to control it, alleging they illegally promoted crypto trading services to UK consumers in breach of the country’s strict financial promotion rules.
HTX has rejected the UK’s allegations, saying the designation targets a separate legal entity and stressing its commitment to full compliance and cooperation with law enforcement agencies.
The exchange said global operations are running normally and that user funds remain safe, while Global Ledger’s analysis argued that sanctioned Russian networks have continued to tap liquidity on major centralized exchanges despite mounting restrictions.
Syrotin said HTX’s exposure is not unusual in the broader context of sanctions evasion networks, noting that even top-tier exchanges globally have served as liquidity endpoints in multi-layer laundering routes involving mining, stablecoins and cross-chain flows designed to obscure the origin of funds.
Magazine: <a href="https://cointelegraph-magazine.com/guide-top-emerging-global-crypto-hubs-2026/" rel="noopener noreferrer nofollow">Guide to the top and emerging global crypto hubs — Mid-2026</a>

HTX denies UK sanctions allegations as new data flags $7.6B Russia-linked flows

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