Holding(s) in Company

Porvair PLC
2 June 2003



To: RNS

          SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following declarable holdings by Henderson Global 
Investment Ltd:
 
Registered owner               No. of shares          % holding

Henderson Smaller Companies      1,300,000              4.63
 Investment Trust plc

From: Porvair PLC


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