Crypto exchange HTX is rapidly rotating its on-chain deposit and hot wallets across multiple blockchains, a strategy that presents significant challenges for blockchain intelligence firms like TRM Labs in tracking its transactions. This operational adaptation follows the UK’s imposition of sanctions on May 26, 2024, targeting Huobi Global S.A., the entity behind HTX.
The UK government has flagged HTX as a major global cryptocurrency exchange suspected of channeling over $1.5 billion to the Kremlin. The sanctions package also targeted the ‘A7 network,’ which British authorities stated was used by Russia to evade existing restrictions and fund its invasion of Ukraine. This action marked the first time the UK applied such measures against a crypto exchange of HTX’s scale.
Operational Adaptations and Tracking Difficulties
According to TRM Labs, HTX has been rotating its wallets across TRON, Ethereum, BNB Smart Chain, and Solana. This strategy involves retiring hot wallets and funding addresses within hours and shifting activity to fresh ones. TRM Labs stated that this rapid cycling makes address-list screening difficult, with blocklists becoming outdated within hours. The firm has framed this response as a pattern observed across well-resourced sanctioned entities, which they note rarely disappear and tend to adapt. TRM Labs compared HTX’s wallet rotation tactics to those previously employed by the Russian exchange Garantex after its own designation and urged others to treat HTX as an “elevated sanctions-evasion risk.”
HTX’s Defense
In response, an HTX spokesperson told Decrypt that the activities flagged by TRM Labs are routine and security-driven platform operations common across the industry. The spokesperson stated, “We categorically reject any characterization implying otherwise and have no further comment.”
Sanctions Scope and Regulatory Landscape
HTX, owned and advised by Justin Sun, has previously stated that the entity sanctioned by the UK, Huobi Global S.A., is distinct from the online HTX exchange. Following the May designation, HTX informed Decrypt that user funds were safe and global operations unaffected. However, the UK’s Office of Financial Sanctions Implementation (OFSI) emphasized that it considers HTX subject to UK financial sanctions due to its ownership by Huobi.
The US Treasury’s Office of Foreign Assets Control (OFAC) and the European Union have not designated HTX. This may indicate that freeze obligations primarily fall on UK-regulated firms. Separately, the UK’s Financial Conduct Authority (FCA) had launched enforcement action against HTX earlier this year over illegal promotions to British customers.
Implications and Remaining Uncertainties
HTX reported a trading volume exceeding $3 trillion in 2025. The operational strategy employed by HTX in response to the UK sanctions presents a significant challenge for regulatory oversight and blockchain surveillance. Uncertainty remains regarding the extent to which HTX’s wallet rotation is a deliberate sanctions evasion tactic versus routine security operations. The situation highlights the adaptive nature of some crypto entities and the ongoing challenges in enforcing sanctions in the digital asset space.
Why This Matters
The materials describe a narrow update: Following UK sanctions on May 26, 2024, crypto exchange HTX has implemented a strategy of rapidly rotating its on-chain deposit and hot wallets across multiple blockchains. The extent to which HTX’s wallet rotation is a deliberate sanctions evasion tactic versus routine security operations.
Broader Context
Source materials place the factual news in this context: The UK applied sanctions to HTX on May 26, 2024, marking the first time the UK used this measure against a crypto exchange of that size.
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