Tiszaújváros, April 17, 2012

SUMMARY REPORT OF TVK PLC. ON THE BUSINESS YEAR 2011

Tisza Chemical Group Public Limited Company (the Company) publishes its Summary Report for the business year of 2011 as according to the requirements of Law on Capital Markets (Tpt.) 53. § (1) paragraph. The Company information mentioned below is available at the website of the Company (www.tvk.hu) below the Investor Relations item.
Places of the disclosures are: the websites of TVK (www.tvk.hu), of the Budapest Stock
Exchange (www.bse.hu), the Capital Market Disclosure website (www.kozzetetelek.hu) and the website of the London Stock Exchange (www.londonstockexchange.com).

DISCLOSED INFORMATION FROM JANUARY 1, 2011 UNTIL PREPARING THE REPORT

Announcement date

Content

31 January, 2011

Number of voting rights at TVK Plc.

15 February, 2011

Report on the Full Year 2010 Result of TVK Group

28 February, 2011

Number of voting rights at TVK Plc.

11 March, 2011

Announcement by the Board of Directors of TVK Plc. on the convocation of the Company's Ordinary General Meeting in 2011

24 March, 2011

Documents for the Annual General Meeting of TVK Plc. to be held on April 14, 2011

31 March, 2011

Number of voting rights at TVK Plc.

4 April, 2011

Nomination of the employees' representative member of the

Supervisory Board

12 April, 2011

Change in the resolution proposal to Item 2 of the Agenda of the

AGM documents

14 April, 2011

2011 Annual General Meeting resolutions of TVK Plc.

14 April, 2011

TVK Group Corporate Governance Report in accordance with Budapest Stock Exchange Corporate Governance Recommendations

14 April, 2011

Annual Report, Financial Statements and Business Reports of

TVK Plc. prepared on the business year 2010

2 May, 2011

Number of voting rights at TVK Plc.

2 May, 2011

Summary report of TVK Plc. on the business year 2010

18 May, 2011

Dividend announcement of the Board of Directors of TVK Plc. -

Dividends for the 2010 financial year

19 May, 2011

Interim Management Report on Q1 2011 of TVK Group

20 May, 2011

Extraordinary announcement about change in management

23 May, 2011

Extraordinary announcement about change in member of Board

of Directors

31 May, 2011

Number of voting rights at TVK Plc.

30 June, 2011

Number of voting rights at TVK Plc.

1 August, 2011

Number of voting rights at TVK Plc.

16 August, 2011

TVK Group Half Year Report for H1 2011

29 August, 2011

Breakdown at TVK due to electrical failure

31 August, 2011

Number of voting rights at TVK Plc.

30 September, 2011

Announcement on change in Investor Relations Contact

30 September, 2011

Number of voting rights at TVK Plc.

1

2 November, 2011

Number of voting rights at TVK Plc.

15 November, 2011

Interim Management Report on Q1-3 2011 of TVK Group

30 November, 2011

Number of voting rights at TVK Plc.

20 December, 2011

Extraordinary notice on selling foreign trade subsidiaries

30 December, 2011

Number of voting rights at TVK Plc.

2 January, 2012

Extraordinary notice on change of the management (HR

manager)

31 January, 2012

Number of voting rights at TVK Plc.

24 February, 2012

Report on the Full Year 2011 Result of TVK Group

29 February, 2012

Number of voting rights at TVK Plc.

14 March, 2012

Announcement by the Board of Directors of TVK Plc. on the convocation of the Company's Ordinary General Meeting in 2012

14 March, 2012

Remuneration statement - Remuneration of members of the

Board of Directors and of the Supervisory Board in 2011 as cash and non-cash benefit.

27 March, 2012

Documents for the Annual General Meeting of TVK Plc. to be held

on April 17, 2012

30 March, 2012

Number of voting rights at TVK Plc.

3 April, 2012

Extraordinary announcement on changes in the organisation

Zsolt Peth