Isdemir investment projects; which are started after the privatization by the purchase of Eregli Iron and Steel Works Co. (Erdemir) on December 31th, 2002, and maintained by speeding up with acquiring 49,28% of Erdemir shares on February 27th, 2006 by Ataer Holding A.S., a wholly owned subsidiary of OYAK, consist of the following stages:

1. Priority Investments

2. Modernization and Transformation Investments (MTI)