Holding(s) in Company

15 Nov 2006 11:30

Porvair PLC15 November 2006 To: RNSDated: 14 November 2006 SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST We have been advised of the following holding by M&G Investment ManagementLimited held in portfolios managed by them on a discretionary basis. Registered owner No. of shares % holding Nortrust Nominee Ltd A/C MKK01 5,320,632 13.11 Total held 5,320,632 13.11 CHRIS TYLERCOMPANY SECRETARYPORVAIR PLC This information is provided by RNS The company news service from the London Stock Exchange