Sonmez Filament Sentetik Iplik ve Elyaf Sanayi A.S. is a Turkey-based company engaged in the production of a range of polyester yarn and fiber. The products include flat, twisted, fancy, elastic and colored yarn. It also produces colored yarn for the automotive industry. The Company has two plants in the Bursa Industrial Zone and in the Demirtas Industrial Zone. Sonmez Filament Sentetik Iplik ve Elyaf Sanayi A.S. is part of Sonmez Holding. As of November 6, 2008, the Company ceased all production activities, and began investigations of new areas of operation.