Correction to the Current Report No. 18/2010 of June 14, 2010 on transactions of persons with access to confidential information

Current report 33/2010 dated 30.12.2010

Legal basis: Article 160 subs. 4 of the Financial Instrument Trading Act — Information about transactions of persons with access to confidential information

In order to supplement the Current Report No. 18/2010 of June 14, 2010, the Management Board of ATM S.A. hereby informs that the Company’s Proxy sold ATM S.A. shares on the following dates:

on January 11, 2010 they sold 300 shares at the price of PLN 9.60 each
on February 1, 2010 they sold 30 shares at the price of PLN 9.05 each
on February 2, 2010 they sold 500 shares at the price of PLN 9.05 each
on May 26, 2010 they sold a total of 1170 shares for an average price of PLN 8.62 each
on June 10, 2010 they sold 481 shares at the price of PLN 9.15 each.

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