STX Corporation engages in energy, commodity, and machinery and engine trading activities; and shipping and logistics fields in South Korea and internationally. It supplies coal to cogeneration plants, cement plants, general industry, etc.; and trades in petroleum products, such as gasoline, gas oil, fuel oil, jet fuel oil, bunker-C oil, etc., as well as aromatic raw materials, synthetic resins, and natural rubber products. The company also exports, imports, and trades in non-ferrous metals, including aluminum, zinc, copper, and nickel; and steel products to the construction, automobile, home appliance, and shipbuilding industries. In addition, it provides plant and marine equipment, marine engines, and shipyard facilities; ground water development; diesel and gas power plant equipment and services; medical equipment; mobile hospital and health care center construction services; elevators, escalators, and moving walks, and engineering solutions and technical support services; and diesel and gas power plants, and power transmission and transformation projects construction services, as well as supplies machinery and electric facilities used for industrial power plants. Further, the company is involved in the operation of railways; trading and overhaul/resale of locomotives; export of railroad components, equipment, etc.; operation of bulk and chemical product transportation ships; and provision of ship brokerage services. Additionally, it supplies LED related products; and consumer goods, such as food, clothing, daily supplies, etc. The company also provides ship management and marine engineering, marine and offshore, and power plant services, as well as supplies engine and equipment parts for ships and plants; operates a resort and restaurants; and offers mass catering and dining services. STX Corporation was founded in 1976 and is based in Seoul, South Korea. STX Corporation is a subsidiary of AFC MERCURY CO., LTD.