Porvair Regulatory News (PRV)

5 May 2006 11:24

Schroders PLC05 May 2006 FORM SAR 3 DISCLOSURE OF ACQUISITIONS (Rule 3 of The Rules Governing Substantial Acquisitions of Shares) Name of acquirer Schroders plcBeneficial owner, if different from above Clients under discretionary management agreements with Schroder Investment Management Limited and its associates and subsidiaries. Names of any other persons acting by agreement n/aor understanding (see SAR 5)Company dealt in Porvair Plc Class of voting shares (eg ordinary shares) Ord 2p Date of acquisition 04.05.06 Number of shares acquired 10,000 Number of rights over shares acquired # n/aNature of rights over shares n/a Total holding of voting shares (and percentage 9,339,271 (23.018%)of total voting shares in issue) Total holding of rights over shares (and n/apercentage of total voting shares in issue) Combined total holding (and percentage) of 9,339,271 (23.018%)voting shares and rights over shares Date of disclosure 05.05.06 Contact name Albion Onojobi Telephone number 020 7658 2962 # See the definition of "rights over shares" in the Definitions Section of theSARs. For details of the SARs disclosure requirements, see SARs 3 and 5 and theirNotes which can be viewed on the Takeover Panel's website atwww.thetakeoverpanel.org.uk. This information is provided by RNS The company news service from the London Stock Exchange