Materials - Petroleum Joint Stock Company (COMECO) is a Vietnam-based company engaged in the marketing and trading of oil and gas products. It is involved in the wholesale and retail trading of petroleum, gasoline, refined oil, lubricants and other petrochemicals with the operations of 29 gasoline stations. It also provides vehicle wash services, as well as tanker trucking and warehousing services for petroleum and related products. The Company is engaged in the development and construction of gasoline stations and warehouses. In addition, it develops office buildings for lease, and offers automotive repair and maintenance services. During the year ended December 31, 2012, 99.63% of its revenue came from trading activities. As of December 31, 2012, the Company was an affiliate of Saigon Petro Company Limited and Petro Vietnam Oil Corporation (PVOil).