Conclusion of a significant contract.

The Management Board of Polimex-Mostostal S.A. informs that on 22 December 2009they received, signed by Bank Millennium S.A. in Warsaw, an Annex to the BankGuarantee and Documentary Letter of Credit Line Contract increasing the limit to theamount of 153,200,000.00 PLN to be appropriated to ordering bank guarantee issuancewith a validity period of up to 5.5 years and opening documentary letters of credit.Terms and conditions of line utilisation and commissions have remained unchanged.The criterion in accordance wherewith the Contract has been deemed significant is thevalue of Polimex-Mostostal S.A. equity capital.

Legal grounds: Article 56 (1) (5) of the Act on public offer and conditions of organised trade infinancial instruments, and on public companies, as related to § 5 (1) (3) and § 9of the Ordinance of the Minister of Finances dated 19 February 2009 on currentand periodical information provided by issuers of securities and terms ofdeeming information required by the regulations of a non-Member Stateequivalent (Journal of Laws of 2009, no. 33, item 259 as amended).