The Treasury Department on Tuesday sanctioned Iranian national Seyed Asadoollah Emamjomeh, who’s known to ship liquefied petroleum gas and crude oil from the country to foreign markets, some of his trading companies, an LPG tanker, and his son, Meisam Emamjomeh. It marks a step-up in Washington’s actions against individuals or entities involved in the trade of Iran’s non-crude energy exports.