Crude oil is Vietnam’s leading export, as it exported a total of 17 million tons in 2002. In 2004, crude oil represented 22% of all export earnings. Petroleum exports are in the form of crude petroleum because Vietnam has a very limited refining capacity. Vietnam’s only operational refinery, a facility at Cat Hai near Ho Chi Minh City, has a capacity of only 800 barrels per day (130 m3/d). Refined petroleum accounted for 10.2% of total imports in 2002. As of 2012, Vietnam had only one refinery, the Dung Quat refinery, but a second one, the Nghi Son Refinery was planned and was scheduled for construction in May 2013.