A change of the terms and conditions of a material agreement

The Management Board of Polimex-Mostostal S.A. informs that today (14.05.2009) itreceived Annex no. 10 to the Framework Agreement for the Granting of Guarantees andOpening of Letters of Credit No. CRD/041117/06/113/G, which was signed by Calyon S.A.Branch in Poland, and which allows the Bank Branches in other countries to grant guaranteesin a direct manner, and within the framework of the limit given to the Company in the amountof 190 million zlotys.

Payment from the guarantees granted by the Bank Branches in other countries shall besecured by a credit in the form of a debit balance on the PxM account in the amount of up to20 million zlotys granted on the day of making payment from the guarantee by the Bank.Other collaterals, the amount of commission and the period of remaining in force shall not bechanged. The criterion on the basis of which the agreement was deemed material is the valueof Polimex-Mostostal S.A. equity.

Legal basis: art. 56 section 5 of the Act of 29 July 2005 on public offering and the conditionsfor introducing financial instruments to the organized trading system and on public companies(Dz.U. – Journal of Laws of 2005 No. 184 item 1539) in connection with § 5 section 1 point 3and § 9 of the Ordinance of the Minister of Finance of 19 February 2009 concerning currentand periodical information delivered by the issuers of securities, and also terms andconditions of deeming equivalent the information required by the law of a state that is not aMember State (Dz.U. – Journal of Laws of 2009 No. 33 item 259).