WASHINGTON: The United States government on Monday (May 11) announced sanctions against three people and nine companies, including four based in Hong Kong and four in the United Arab Emirates, for aiding Iran's shipment of oil to China.  The ninth company is based in Oman.  The Treasury move follows sanctions announced on Friday on individuals and companies aiding Iranian purchases of weapons and components used to make drones and ballistic missiles.  It comes days before US President Donald