Porvair : Directors' Shareholdings and Issue of Equity

Porvair plc

("Porvair" or the "Company")

Directors' Shareholdings and Issue of Equity

On 26 January 2015, the Company was notified that on such date, the Directors undertook the following trades in ordinary shares of 2p each in the share capital of the Company ("Shares"):

In the case of Ben Stocks and Chris Tyler such Share sales relate to planned exercise of the following options under the Company's Share option schemes due to take place on 2 February 2015. Hence these Shares will not be issued and the trades settled until such date. In each case the Shares were sold in order to meet the cost of exercise, the personal taxation liabilities arising on the options and certain other financial commitments. The options to be exercised on 2 February 2015 are:

Following completion of the above exercise of option shares and trades, Ben Stocks' holding will increase to 603,427 Shares, Chris Tyler's holding will increase to 392,450 Shares and Dr Rajagopal will have15,000 Shares representing 1.35%, 0.88% and 0.03% respectively of the total issued Shares. Following the issue of the new Shares, the Company will have 44,804,331 Shares in issue. There are no Shares held in treasury.

Therefore, the total number of voting rights in the Company following the issue of the new Shares is 44,804,331 . The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company, under the FCA's Disclosure and Transparency Rules.

For further information, please contact:

Peel Hunt LLP                                                                                     020 7418 8900

Daniel Harris