WASHINGTON (AA) : The US on Friday imposed new sanctions targeting companies, exchange houses and financial facilitators it said helped Iran secretly move hundreds of millions of dollars through the international financial system. The department targeted two major digital asset exchanges, Shelbit Exchange and Aban Tether, alongside ringleader Siavash Kayvanpour. The exchange also transferred more than $2 million to the military group’s addresses and another $2 million to Nobitex, a previously designated Iranian exchange, it added. The Financial Crimes Enforcement Network’s whistleblower program offered awards for information on sanctions violations leading to penalties exceeding $1 million. “Through these networks, Tehran accessed oil revenue and evaded sanctions designed to curb its destabilizing activities, laundering funds using front companies,” Pigott said.