Blocklisting Application

For immediate release 19 June 2025

Blocklisting Application

Porvair plc ("Porvair", the "Group" or the "Company"), the specialist filtration and environmental technologies group, announces that application has been made to the Financial Conduct Authority and the London Stock Exchange for the blocklisting of 105,560 ordinary shares of 2p each.

The block admission relates to ordinary shares which will be allotted from time to time in accordance with the exercise of options under the Porvair SAYE scheme 2024. New Ordinary Shares issued under the block listing will rank parri passu in respect with the exiting Ordinary Shares of the Company. It is expected that admission will become effective on or around 20 June 2025.

The Company's issued share capital will not change as a result of the block listing application set out above.

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Notes to editors

Porvair plc

Porvair is a group of specialist filtration, laboratory and environmental technology businesses. Its businesses design and manufacture a range of bespoke consumable filtration products that are used in a range of niche filtration markets. It operates in three divisions: Aerospace & Industrial; Laboratory; and Metal Melt Quality.