Holding(s) in Company

Porvair PLC
16 July 2002


LETTER TO RNS

          SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following declarable holdings by Edinburgh Small
Companies Trust plc:

Registered owner                    No. of shares                      % holding

BNY (OCS) Nominees Limited          1,469,786                               3.99


LETTER FROM PORVAIR PLC



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