SHINWHA INTERTEK Co., Ltd. engages in the production and sale of liquid crystal display (LCD) optical film and surface coated products. It operates through the Optical Film and Mobile Organic Light Emitting Diode Tape Business Divisions. The Optical Film division provides films for LCD back light units. The Mobile Organic Light Emitting Diode Tape division offers tapes and films for smartphones. The company was founded on May 27, 1988 and is headquartered in Cheonan-si, South Korea.