Own business as Necip Naci Doğru first will set up.
1979, the increase in demand and business needs with Gintaş institutionalization is established. (Necip Naci Dogru and Family, Zafer Tolunay and family)
The first large-scale project as the Metropolitan Municipality of Bursa Bus Operations Facility will be awarded.
Construction of additional building is Brick Factory Bozuyuk.
Construction of the building, district of Bursa Keles PTT is performed.