Mahmut Kösemusul 
(​Chairman of the Board)

Mahmut Kösemusul is a businessman from Turkey. He started his commercial life in 1983 at his father's workplace, selling automotive and spare parts. Later, he established Textile, Food, Automotive, Construction, Outdoor Ornamental Plants companies with strategic investment tactics. In 2012, these companies merged under the umbrella of MKM Group with approximately 400 employees.

Mahmut Kösemusul served as the president of Sakarya Chamber of Commerce and Industry between 2009-2018. He is a member of the Union of Chambers and Commodity Exchanges of Turkey (TOBB) and a member of the Turkish Foreign Economic Relations Board (DEIK). Mahmut Kösemusul in Sakarya is among the successful and respected businessmen who contribute to the economic and social development of the province.