All shares of İsdemir were transferred to Erdemir by the Turkish Privatization Administration with a Share Transfer Agreement dated 31 January 2002, on the condition that investments would be made for the transition to flat production. Following the acquisition of Erdemir by Oyak, İsdemir started to operate under OYAK as of 27 February 2006. Currently, 95.07% of İsdemir shares are owned by Erdemir and 4.93% by other shareholders.