Re Contract

Porvair PLC
17 April 2007


                            Porvair plc ('Porvair')



   Milestone reached in key growth project for improved metals filter product

Porvair today announces that customer deliveries have started on one of its key
growth projects - a new generation of filters for nickel and cobalt based metal
alloys used in high grade metal castings. The technology for these filters was
originally developed at the Sandia National Laboratory in the USA and has been
in development by Porvair and its partners for 5 years.

Porvair has a multi-year customer commitment for the new filter and will scale
up its production during the rest of 2007. Full capacity, worth $5 million per
annum in revenue, is expected to be reached by the middle of 2008.

Ben Stocks, CEO of Porvair plc said:

'We have been working closely with our technology partners and customers to
bring this new filter to market. We are delighted that sales have now started
against a multi-year customer commitment. This work will underpin the improving
results we are seeing in our Metals Filtration Division which, along with the UK
Filtration Group, has started 2007 well.

Porvair plc
Ben Stocks, Chief Executive                                        01553 765 500
Chris Tyler, Group Finance Director                                01553 765 500

Buchanan Communications                                            0207 466 5000
Charles Ryland / Ben Willey / Susanna Gale



Notes to editors

Porvair is a group of specialist filtration and environmental technology
businesses. Its products are used in a range of niche filtration markets, and
are derived from its expertise in the development and manufacture of porous and
microporous ceramics, metals, plastics and carbons.




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