EPI (Holdings) Limited, an investment holding company, engages in the exploration and production of petroleum. It operates in three segments: Petroleum Exploration and Production; Trading of Petroleum Related Products; and Metals Transactions. The company has interests in the Puesto Pozo Cercado concession and Cha ares Herrados concession located in the Cuyana basin, Mendoza province of Argentina. Its metals transactions include trading of non-ferrous metals; and entering into non-ferrous metals sales and purchase contracts for procurement of the metals for customers. EPI (Holdings) Limited also has operations in the People s Republic of China and Hong Kong. The company was formerly known as Great Wall Cybertech Limited. EPI (Holdings) Limited was founded in 1989 and is headquartered in Wanchai, Hong Kong.