Iran’s biggest cryptocurrency exchange has been quietly moving billions of dollars through two of the world’s most popular blockchains, and the money trail leads directly to some of the most heavily sanctioned organizations on the planet.
Nobitex, the dominant domestic crypto platform in Iran, processed at least $2.3B in transactions on Tron and BNB Chain since 2023, according to a Reuters investigation. The recipients weren’t just ordinary Iranian users. They included entities tied to the Central Bank of Iran and the Islamic Revolutionary Guard Corps, both of which sit firmly on the US sanctions list.
Following the stablecoin breadcrumbs
The investigation traced over $800M in USDT to wallets linked to the Central Bank of Iran across both Tron and BNB Smart Chain. That’s not a rounding error. That’s a central bank using dollar-pegged stablecoins on low-cost blockchains to move funds that the traditional banking system was specifically designed to block.
The flows were concentrated heavily in Tether’s USDT, the world’s largest stablecoin by market cap. The investigation identified flows moving through OTC desks and into jurisdictions like Turkey and the UAE, creating enough distance between origin and destination to complicate enforcement.
Tether’s record freeze
In response to enforcement action, Tether froze approximately $344M in USDT linked to Iranian activity, marking the company’s largest single freeze to date.
Analysts cited in the investigation suggest the $2.3B figure may actually underestimate the real scale of activity. Weak KYC and AML controls at Nobitex, combined with the use of over-the-counter intermediaries who operate with minimal oversight, mean that a substantial portion of transactions may never have been captured in the on-chain analysis.
Why cheap blockchains are a sanctions headache
The involvement of the Central Bank of Iran is particularly notable. An $800M flow linked to a central bank suggests institutional-scale sanctions circumvention. Turkey and the UAE appearing as downstream destinations adds another layer of complexity. Both countries have faced scrutiny over their roles as intermediary jurisdictions for sanctions evasion, and the fact that funds allegedly flowed through these corridors suggests that the obfuscation network extends well beyond Iran’s borders.
