Döktaş Dökümcülük Ticaret ve San. A.Ş. is a leading company in Turkey specialized in manufacturing of pig, ductile and aluminium castings supplied to automotive, heavy commercial vehicles, construction and agricultural machinery industry. Founded in 1973 Orhangazi Iron Foundry maintains pig and ductile iron casting and machining capabilities and is Turkey’s largest iron casting plant. In Manisa facilities, high and low pressure aluminum casting and aluminum wheel production activities are performed. Manisa Aluminum Plant is the 2nd largest aluminum casting facility for the automotive sector in Turkey, while Aluminum Wheel Plant is Turkey's 4th largest aluminum wheel manufacturing facility. In 1973, Döktaş Dökümcülük was established in Bursa Orhangazi in the name of Koç Holding. In December 2006 the company was acquired by Finnish Componenta Corporation. As of September 29 2017, the company's shares were transferred to Döktaş Metal Sanayi ve Ticaret A.Ş. Subsequently on June 29, 2018, the company became a member of Çelik Holding.