Holding in Company

Porvair PLC
7 December 2000


SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following declarable holdings by Schroder
Investment Management Limited:


Registered owner                         No. of shares          % holding

Schroder Unit Trusts Limited               3,937,750
Imperial Pensions Nominees Limited           350,000
Chase Nominees Limited                         1,600
                                           ---------
                                           4,289,350               16.673