Oyak Cmento Fabrikalari Anonim Sirketi 

OYAK Çimento Fabrikalari A.S. produces and sells clinker and cement in Turkey. It offers portland, white portland, portland composite, white portland limestone, blast furnace slag, pozzolanic, sulphate resistant pozzolanic and portland, and composite cement products, as well as Api well, and other special cements. The company also provides fly ash, ready-mixed concrete, kraft paper, and paper bag. It also exports its products. The company was formerly known as Mardin Çimento Sanayii ve Ticaret Anonim Sirketi and changed its name to OYAK Çimento Fabrikalari A.S. in May 2020. The company was founded in 1969 and is headquartered in Ankara, Turkey. OYAK Çimento Fabrikalari A.S. is a subsidiary of OYAK Çimento A.S.