Holding(s) in Company

Porvair PLC
02 December 2005

Letter to RNS

              SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We have been advised of the following holding by Coal Pension Trustees and 
certain of its subsidiary companies


Registered owner             No. of shares     % holding

Mineworkers Pension Scheme     1,192,500         2.97
(Chase GIS) Nominees Ltd



From Porvair PLC



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