In the production of stable, high-quality ring and open-end yarn, control of the fibers, ribbon, roving, cop and reel is of great importance. Besides Cotton USA certified, cottons of U.S. origin, carefully selected indigenous cotton, are being processed and converted to yarn at the premises of ISKUR. Know how of raw material is of crucial importance in the production of yarn.

İskur's accumulation in this area has been effective in the selection of the company's founder, A. Kadir Kurtul for the Membership of International Liverpool Cotton Exchange. In the management of a team of qualified and fully equipped laboratory with air conditioning is an important factor in high quality ring and open-end yarn production of ISKUR. ISKUR yarns, are among the highest quality yarns in domestic and international markets. Various fibers, ribbon, cop and yarn tests performed by such laboratory equipment as Uster tensojet 4, Uster Tester 4, HVI spectrum, Uster Afispro provide high quality standards in production.