Holding in Company

Porvair PLC
30 November 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                        3,882,500     
Imperial Pensions Nominees Limited                    460,000
Chase Nominees Limited                                244,350
                                                    4,586,850         17.829