HTX Overhauls On-Chain Infrastructure to Sidestep UK Sanctions, Report Finds

Cryptocurrency exchange HTX has undergone a massive technical restructuring of its on-chain operations in an apparent effort to bypass United Kingdom financial sanctions, according to a new analysis from blockchain intelligence firm TRM Labs. The exchange, formerly known as Huobi, has reportedly implemented a high-frequency wallet rotation strategy that makes it nearly impossible for compliance software to track its assets in real-time.

The strategic shift follows a May 26 designation by the UK’s Office of Financial Sanctions Implementation (OFSI), which targeted Huobi Global S.A. as part of a broader crackdown on the “A7 network.” British authorities allege this network has been instrumental in helping Russia evade international restrictions to fund its ongoing invasion of Ukraine. HTX is specifically accused of facilitating the movement of more than $1.5 billion for the Kremlin.

According to TRM Labs, HTX is now cycling its deposit and hot wallets across multiple networks—including TRON, Ethereum, BNB Smart Chain, and Solana—at an unprecedented pace. By retiring these addresses within hours of their creation, the exchange creates a “moving target” for regulators. Traditional blocklists, which rely on static addresses, become obsolete almost immediately, as the vast majority of the exchange’s transaction volume now flows through fresh, unflagged infrastructure.

This technical maneuver mirrors tactics previously observed in other high-profile sanctioned entities. TRM Labs noted similarities to the Russian exchange Garantex, which also attempted to maintain liquidity through successor entities and stablecoin migrations after being blacklisted. However, while others have rebranded, HTX has chosen to maintain its public identity while completely rebuilding its underlying “on-chain plumbing.”

In response to the findings, an HTX spokesperson characterized the activity as standard procedure. The exchange stated that the technical changes are part of “routine, security-driven platform operations” common within the digital asset industry. HTX has previously attempted to distance itself from the UK’s legal actions, arguing that the sanctioned entity, Huobi Global S.A., is legally distinct from the HTX exchange platform. The UK government, however, maintains that HTX falls under the sanctions regime due to its ownership structure.

The exchange’s relationship with British regulators was already strained prior to the sanctions. Earlier this year, the Financial Conduct Authority (FCA) initiated enforcement actions against HTX for allegedly targeting UK consumers with illegal promotions. This pressure forced the exchange to halt new sign-ups from the region, reflecting a broader trend of the UK tightening its grip on the crypto sector through the Financial Services and Markets Act 2023.

HTX is currently led and advised by Justin Sun, a prominent and often controversial figure in the crypto space. Sun recently resolved a fraud case with the U.S. Securities and Exchange Commission (SEC) earlier this year. Despite the regulatory headwinds in Europe, the exchange remains a massive global player, reporting a staggering trading volume of over $3 trillion in 2025.

While the UK has taken a hardline stance, HTX has not yet been designated by the U.S. Treasury’s Office of Foreign Assets Control (OFAC) or the European Union. This discrepancy means that mandatory asset freezes currently apply only to firms regulated within the United Kingdom, though blockchain analysts warn that the exchange now represents an elevated risk for global financial institutions attempting to maintain sanctions compliance.