Blockchain analytics firm TRM Labs published findings this week claiming CoinEx facilitated more than $3.84 billion in on-chain flows connected to sanctioned Iranian cryptocurrency operators. CoinEx stated the allegations misrepresent its compliance posture and that the exchange enforces sanctions screening.

TRM's report identified specific wallet addresses and transaction patterns it attributed to sanctioned Iranian entities moving assets through CoinEx. The firm stopped short of alleging criminal wrongdoing by the exchange itself but flagged the scale of traced flows as a compliance red flag for regulators monitoring sanctions evasion.

The dispute lands amid intensifying U.S. and allied scrutiny of cryptocurrency's role in circumventing sanctions. OFAC and foreign financial intelligence units have increasingly targeted exchanges and service providers accused of enabling sanctioned actors to move or launder value. Enforcement actions and regulatory guidance over the past two years have raised the compliance bar for platforms operating in multiple jurisdictions.

CoinEx operates as a centralized exchange offering spot trading in cryptocurrency pairs. The platform does not require identity verification for certain trading activities, a practice that has drawn regulatory attention in other cases involving sanctions screening gaps.

Neither CoinEx nor TRM Labs has released granular transaction logs or wallet metadata to support their respective positions. CoinEx's response does not address TRM's specific wallet identifications or dispute the transaction volume itself. The exchange said it maintains compliance infrastructure but provided no public documentation of its sanctions screening protocols or audit results.

Regulators have not announced a formal investigation into CoinEx tied to this reporting. U.S. officials have sanctioned crypto-adjacent entities for Iran ties in prior cases but typically signal enforcement intent through OFAC notices or indictments rather than response to private-sector analytics reports. TRM Labs itself has no enforcement authority and publishes research for compliance teams and government bodies to act on at their discretion.

The allegation underscores a persistent gap in exchange compliance visibility. On-chain transaction tracing can identify flows but cannot confirm an exchange's knowledge of or intent to facilitate sanctions evasion. CoinEx's denial does not resolve whether its screening systems caught and blocked the transactions in question, allowed them through with deliberate oversight, or lacked sufficient controls to detect them.