Petroleum and mining machinery and aircrafts have been the strongest U.S. exports to Papua New Guinea. The U.S. imports modest amounts of gold, copper ore, cocoa, coffee, and other agricultural products from Papua New Guinea. The ExxonMobil-led liquefied natural gas project, PNG LNG, has been a success for Papua New Guinea, hailed for its timely and close-to-budget construction and smooth operation. Papua New Guinea is a party to the U.S.-Pacific Islands Multilateral Tuna Fisheries Treaty, which provides access for U.S. fishing vessels in exchange for a license fee from the U.S. industry. Under a separate Economic Assistance Agreement (EAA) associated with the Treaty, the U.S. Government currently provides $21 million per year to Pacific Island parties. According to U.S. Census Bureau data, in 2016 the U.S. exported $126.8 million worth of goods to Papua New Guinea and imported $91.8 million worth.