Changes to the ownership structure of the Company’s shares

The Management Board of Polimex-Mostostal S.A. with its registered office in Warsaw at ul. Czackiego 15/17 hereby informs that the Company received from Impexmetal S.A. with its registered office in Warsaw, acting pursuant to Article 69 (1) of the Act on Public Offering and Conditions Governing the Introduction of Financial Instruments to Organised Trading, and Public Companies, a notification on the purchase of 10,411,440 shares of Polimex-Mostostal on 25 September 2012 on the regulated market , and on the increase in the total number of voting rights at the General Meeting of Polimex-Mostostal S.A. exceeding the 5% threshold.

Prior to the transaction, Impexmetal S.A. directly owned 23,758,915 shares of Polimex-Mostostal S.A., which constituted 4.56% of the Company’s share capital and entitled in total to 23,758,915 voting rights at the General Meeting of Polimex-Mostostal S.A., which constituted 4.56% of the total number of voting rights at the General Meeting of the Company.

Following conclusion of the transaction, Impexmetal S.A. directly owns 34,170,355 shares of Polimex-Mostostal S.A., which constitutes 6.56% of the Company’s share capital and entitles in total to 34,170,355 voting rights at the General Meeting of Polimex-Mostostal S.A., which constitutes 6.56% of the total number of voting rights at the General Meeting of the Company.