İsdemir which was established in İskenderun on October 3, 1970 is the third integrated iron-steel facility of our country by the date of establishment and the largest integrated iron-steel facility by the production capacity of long products. The company became the only integrated facility producing long and fleet products in Turkey with a hot rolling capacity of 3,5 million tons/year as commissioned in 2008.
The company whose shares were transferred by the Privatization Administration to Erdemir in 2002 became one of the group companies of OYAK as a result of the transfer of Erdemir to ATAER Holding, an affiliate of OYAK, on February 27, 2006. The company holds 50% shares of İsdemir Linde Gaz Ortaklığı A.Ş. (İLGAZ).