He Born in Gaziantep in 1955, Mustafa Özmermer began his career at a young age working in his father's pita bakery. He later continued his career in bread and baked goods at Has Bread Bakery. After many years of working in the bakery industry, he and his brother Ali Özmermer, believing they could produce better quality flour, the raw material for bread, entered the sector in 1994 by founding Özmermer Flour Factory. In 2004, they established Has Synthetic Weaving, establishing themselves in the textile sector with the production of P.P. Sacks, P.P. Fabrics, P.P. CF Yarn, and P.P. Agricultural Yarns. A member of the board of directors of the Gaziantep Chamber of Industry, Mustafa Özmermer continues his career as Chairman of the Board of Directors of Özmermer Flour Factory and Has Synthetic Sack Factory, which he founded. He has served as a member of the Board of Directors of TUSAF since 2022.