Holding(s) in Company

Porvair PLC
15 January 2003

Letter to RNS

SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following declarable holdings by Legal and General
Investment Management:

Registered owner                          No of shares               % holding

HSBC Global Custody Nominee (UK) Ltd       1,137,269                  3.09

From Mark Moran
Company Secretary
Porvair Plc




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