Holding(s) in Company

Porvair PLC
05 February 2007

To:    RNS


3% NOTIFIABLE INTEREST

We have been advised of changes to the following holding by F&C Asset Management
plc held in portfolios managed by them on a discretionary basis.

Registered owner                No. of shares     No. of shares      %holding
                                   previously               now


Stewardship Inv Funds           1,460,262         2,007,062           4.95
ICVC Stewardship Growth
Fund

FPCP Stewardship                1,861,276         2,585,776           6.37

Stewardship Inv Funds           1,367,717         Below 3%
ICVC Stewardship Income                           threshold
Fund


CHRIS TYLER
COMPANY SECRETARY
PORVAIR PLC





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