Türk Hava Yollari Anonim Ortakligi provides air transport and aircraft technical maintenance services in Turkey and internationally. The company offers domestic and international passenger and cargo air transportation services; repair and maintenance, and technical and infrastructure support services related to aviation sector; catering and aviation ground handling services; software system maintenance and information technology consulting services. It is also involved in training, airport operation, and investment activities; the manufacture and trading of cabin interior accessories and aircraft seats; and the trading of aviation fuel. The company was incorporated in 1933 and is headquartered in Istanbul, Turkey.