Dates of publication of periodic reports in 2011

Current report 01/2011 dated 11.01.2011

Pursuant to Article 103 (1) of the Regulation of the Minister of Finance dated February 19, 2009, the Management Board of ATM S.A., with its registered office in Warsaw, hereby informs that the dates of publication of periodic reports in 2011 will be the following:

Quarterly reports:
Consolidated report for Q4 2010 — February 25, 2011.
Consolidated report for Q1 2011 — May 13, 2011.
Consolidated report for Q3 2011 — November 14, 2011.

Half-year reports:
Consolidated half-year report for H1 2011 with condensed half-year financial statements – August 31, 2011.

Annual reports:
Annual report for 2010 — April 29, 2011.
Consolidated annual report for 2010 — April 29, 2011.

The Management Board of ATM S.A. would also like to inform that pursuant to Article 83 (1) and (3) of the Regulation of the Minister of Finance of February 19, 2009, they will not submit separate single quarterly and half-year reports.

The Management Board of ATM S.A. would also like to inform that in accordance with Article 101 (2) of the Regulation of the Minister of Finance of February 19, 2009, they will not publish a consolidated quarterly report for Q2 2011.

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