Holding(s) in Company

Porvair PLC
19 September 2003

To: RNS

SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following holding by J P Morgan Securities Ltd:
 
 
Registered owner                            No. of shares          % holding

Fleming Mercantile Investment Trust plc     1,203,751              3.27

From: Porvair plc


To: Porvair Plc
Dated: 18th September 2003

                                PORVAIR PLC 
                  S198 COMPANIES ACT 1985 INTEREST IN SHARES

J.P. Morgan Securities Ltd., on behalf of Fleming Mercantile Investment Trust
plc, hereby notifies you that it has a beneficial interest in the share capital
of your company as detailed in the schedule below.


                                 SCHEDULE

Fleming Mercantile Investment Trust plc

PORVAIR ORD 2P

Registered Holder 

Fleming Mercantile Investment Trust plc          1,203,751

TOTAL INTEREST 3.27%                             1,203,751



From: J.P. Morgan Securities Ltd.

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