Director/PDMR Shareholding

Synairgen plc
30 November 2006

Synairgen plc ('Synairgen' or the 'Company')

Director Shareholdings

The Company was informed on 30 November 2006 that Richard Marsden, Managing
Director of Synairgen, had been granted options on 30 November 2006 over 70,606
ordinary shares of 1 pence each ('Ordinary Shares') in the Company under the
Company's Long-Term Incentive Plan (the 'LTIP') at an exercise price of 1 pence.

Mr Marsden's holding in options over Ordinary Shares has therefore increased to
814,435, representing approximately 3.75 per cent. of the issued ordinary share
capital of the Company.

The Company was informed on 30 November 2006 that John Ward, Finance Director of
Synairgen, had been granted options on 30 November 2006 over 128,484 Ordinary
Shares in the Company under the Company's LTIP at an exercise price of 1 pence.

Mr Ward's holding in options over Ordinary Shares has therefore increased to
513,675, representing approximately 2.37 per cent. of the issued ordinary share
capital of the Company.






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