Holding(s) in Company

Porvair PLC
14 August 2002



LETTER TO RNS


SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST
-------------------------------------------------------

We were advised today of the following declarable holdings by Friends Ivory and
Sime plc:

Registered owner              No. of Shares          % holding
----------------              -------------          ---------

Littledown Nominees Limited      1,823,619            
Chase Nominees                     179,571
Citifriends Nominees Limited     2,107,286
HSBC GS Nominees Limited         1,207,647
                                 --------- 
                                 5,318,123             14.45

FROM PORVAIR PLC


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