Turk Hava Yollari A.O. 

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.