The United States imposed sweeping new sanctions targeting an Iranian businessman accused of managing a global financial network for Supreme Leader Mojtaba Khamenei and several exchange houses that Washington says have helped Tehran evade sanctions and maintain access to foreign currency.

OFAC designated Amin Exchange and over 50 entities in its Economic Fury campaign targeting Iran's shadow banking system and sanctions evasion networks.

The United States imposed sweeping new sanctions targeting an Iranian businessman accused of managing a global financial network for Supreme Leader Mojtaba Khamenei and several…