Holding(s) in Company

Porvair PLC
21 February 2006


To: RNS


           SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We have been advised of the following holding by the Mineworkers Pension Scheme
and certain of its subsidiary companies

Registered owner                No. of shares                  % holding

Mineworkers Pension Scheme          1,218,136                       3.00  
(Chase GIS) Nominees Ltd



From: Porvair plc


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