Crypto exchange HTX is pushing back against a decision by the United Kingdom to blacklist Huobi Global S.A., the Panamanian company behind the platform, over allegations it helped Russia move funds through a covert financial network known as the “A7” shadow system.
The designation was included in the UK’s latest Russia sanctions package, announced on May 26, which targeted what British authorities described as “crypto and illicit finance networks” being exploited to channel funds into Moscow’s war economy. The package included 18 designations in total, covering A7-linked infrastructure including a Kyrgyz bank and, notably, a “major global cryptocurrency exchange” the UK said was suspected of funnelling more than $1.5 billion back into Russian hands.
What the A7 network is
The A7 system is described by UK officials as a Kremlin-backed shadow network designed to help Russian entities circumvent Western financial restrictions and sustain the country’s war economy following international sanctions imposed after Russia’s invasion of Ukraine.
UK authorities imposed asset freezes and financial services bans on all entities named in the package, including Huobi Global, on the basis that they provided economic resources to parties already under restriction.
HTX’s response
HTX responded quickly, arguing on X that the designation applies only to Huobi Global as a distinct legal entity, not to the exchange platform itself, and that its global operations continue to run normally with user funds intact.
“HTX rejects these allegations and remains fully committed to compliance and cooperation with law enforcement agencies,” the exchange stated.
Blockchain data tells a broader story
A blockchain analytics report published Wednesday by Global Ledger painted a more detailed picture of the exchange’s alleged exposure. According to the analysis, HTX processed approximately $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 sanctioned exchange Garantex, its successor Grinex, the A7A5 network, and the now-defunct Hydra marketplace, alongside other darknet platforms.
The report also flagged significant flows connected to Huione Group, Nobitex, Hezbollah-linked addresses, and North Korea’s Lazarus Group, suggesting HTX’s high-risk exposure may extend considerably beyond Russia.
The UK government’s figure of $1.5 billion, shared with media, represents a fraction of the $7.6 billion total estimated in the Global Ledger multi-year blockchain tracing exercise across Bitcoin, Ether, and Tether on Tron.
A pattern of escalating regulatory pressure
This is not HTX’s first clash with UK regulators. The UK’s Financial Conduct Authority (FCA) opened High Court proceedings against Huobi Global and individuals alleged to control it in October 2025, accusing them of illegally promoting crypto trading services to UK consumers in breach of the country’s financial promotion rules.
The combination of the FCA proceedings, the new sanctions designation, and the Global Ledger findings puts HTX under significant and mounting regulatory pressure in the United Kingdom, adding to broader Western scrutiny of major crypto exchanges over their alleged roles in sanctions evasion. HTX had not responded to requests for further comment by the time of publishing.
