The intention to split the Issuer - adjustment

Current report 15/2011 dated 05.07.2011

Legal basis: Article 56 (1) item 1 of the Public Offering Act — confidential information

As a supplement to current report No 15/2011, the Issuer’s Management Board informs that the planned split of ATM S.A. will consist in the undertaking’s split into two parts, both managed by companies listed on the primary market of the Warsaw Stock Exchange. The telecommunications part will be managed by a listed company, ATM S.A., and the integrator part by a listed company, ATM Systemy Informatyczne S.A., for which the process of admitting the shares to trading on the WSE primary market will be conducted on a parallel basis to the split.

The procedure of splitting ATM S.A. is going to take several months and its finalisation is expected at the turn of 2011 and 1012.

In consequence, if the split of ATM S.A. was conducted, each shareholder of ATM S.A. would automatically become the shareholder of both companies after the split: ATM S.A. and ATM SI S.A., and the sum of the value of shares held will not change following the split. After the split, each of the companies will independently build its value, and investors will be able to individually define their investment preferences as to each of those companies.

Roman Szwed — President of the Management Board,
Tadeusz Czichon — Vice-President of the Management Board