Yükselen Çelik AS is a supplier of tool, alloy, carbon and structural steels used in machinery, mold, automotive, defense and manufacturing industries. Its brands include DSS, POLDI, TOOLGO, WESS, ETE and RISING ROLLER. The company was founded by Yuksel Gokturk on March 20, 1989 and is headquartered in Esenyurt, Turkey.