The United States sanctioned Shanghai-based ESAIL Shipping Company for transporting illicit materials from Iran’s Aerospace Industries Organization (AIO) and for working with Iranian companies under UN sanctions. New sanctions have also been placed on Mahan Air and three of its general sales agents for its alleged role in proliferating weapons of mass destruction. The United States has also sanctioned an Iranian shipping network for alleged smuggling of lethal aid to Yemen on behalf of the Islamic Revolutionary Guard Corps (IRGC) Quds Force. The new sanctions on ESAIL and Mahan Air will take effect in June 2020, as will sanctions on Islamic Republic of Iran Shipping Lines (IRISL).