Philippe Michel L. Chiorra

Part of Participation financière Industrielle Commerciale Parfininco, Tamtas Yapi Malzemeleri Sanayi ve Ticaret AS is a Turkish company that specializes in the production of construction materials such as concrete aggregates, asphalt aggregates, and filling aggregates. The private company is based in Elmadag, Turkey. The company offers a wide range of products including 0-4 mm, 4-12 mm, and 12-22 mm concrete aggregates, as well as 0-5 mm, 5-13 mm, and 13-19 mm asphalt aggregates. Tamtas Yapi Malzemeleri Sanayi ve Ticaret also produces filling aggregates for both upper and lower infrastructure, with sizes ranging from 0-63 mm to 90-122 mm.

Bastas Hazir Beton Sanayii Ve Ticaret AS is a Turkish company that specializes in manufacturing concrete blocks and bricks.

Aktas Insaat Malzemeleri Sanayi Ve Ticaret AS is a Turkish company that manufactures cement.