UNIPETROL, a.s. hereby announces that there has been a change in the financial calendar for 2012. Second quarter 2012 financial statements will be published on 26 July 2012.

The originally announced date of publication of the second quarter 2012 financial statements was 2 August 2012.

The estimation of selected operating data of Unipetrol (trading statement) for the second quarter 2012 will be published on 19 July 2012.

The originally announced date of publication of the estimation of selected operating data of Unipetrol (trading statement) for the second quarter 2012 was 26 July 2012.

In Prague, on 25 June 2012
UNIPETROL, a.s.

Reg. Announc. No. 16/2012