05/03/2007

5 March, 2007

Extraordinary announcement on changes of the shareholders owned more than 5% stake

Tisza Chemical Group Public Limited Company (TVK Plc.) hereby informs its shareholders and capital market participants that the shareholders owning more than 5% stake registered in TVK’s Share Register changed.

MOL Hungarian Oil and Gas Public Limited Company (H-1117 Budapest, Október huszonharmadika u. 18., Hungary) shareholding in TVK’s Share Register increased from 44,55% to 94,86% as of March 05, 2007. The stake of Slovnaft, a.s. (subsidiary of MOL Plc) remained unchanged (8.06%). The direct and indirect influence of MOL Plc. in TVK Plc. increased to 94.86%.

CE Oil & Gas Beteiligung und Verwaltung AG (A-1010 Wien, Tegetthoffstraße 7, Austria) stake in TVK decreased from 31.56% to 0% as of March 05, 2007.

ST2. Announcement of the acquisition of or change in a ratio of more than 5% ownership

Name of shareholder acquiring, holding more than 5% interest MOL Hungarian Oil and Gas Public Limited Company
Security name, type TVK ordinary shares
Exchange listed (yes/no) Yes
Type of transaction (purchase/sale) Purchase
Securities subject to the transaction (qty) 10,262,113
Securities subject to the transaction (%) 42.24
Date of transaction 27.02.2007. and 28.02.2007.
Date of notice to Company 01.03.2007.
Holdings before notice (qty) 10,821,029
Holdings before notice (%) 44,55
Holdings after notice (qty) 21,083,142
Holdings after notice (%) 86.79

ST2. Announcement of the acquisition of or change in a ratio of more than 5% ownership

Name of shareholder acquiring, holding more than 5% interest CE Oil & Gas Beteiligung und Verwaltung AG
Security name, type TVK ordinary shares
Exchange listed (yes/no) Yes
Type of transaction (purchase/sale) Sale
Securities subject to the transaction (qty) 7,666,850
Securities subject to the transaction (%) 31.56
Date of transaction 27.02.2007.
Date of notice to Company 28.02.2007.
Holdings before notice (qty) 7,666,850
Holdings before notice (%) 31.56
Holdings after notice (qty) 0
Holdings after notice (%) 0

Árpád Olvasó
CEO