SDI Group plc

("SDI", the "Company" or the "Group")

Grant of Share Option Awards

25 September 2025 - SDI Group plc, the buy and build group, focused on companies which design and manufacture specialist lab equipment, industrial and scientific sensors and industrial & scientific products, announces details of the grant of share option awards on 24 September 2025 to the Company's Executive Directors in respect of Ordinary Shares of 1p each in the Company. Two separate awards were granted to each Executive Director.

One award is a deferred bonus award in respect of SDI's financial year ended 30 April 2025 granted under the Company's Long Term Incentive Plan 2025. The other award is a performance based LTIP award, also granted under the Company's Long Term Incentive Plan 2025 ("LTIP") (together, the "Grants").

The deferred bonus awards have an exercise price per share of 1 pence and are exercisable one year from grant and have no performance conditions.

The LTIP awards have an exercise price per share of 1 pence and are ordinarily exercisable three year from grant subject to continued service and to the extent that performance conditions measured over a 3-year performance period are met. The LTIP awards are also subject to net of tax post vesting holding period to be determined by the Remuneration Committee. The performance conditions for the awards are linked to the Company's growth in EPS and total shareholder return.

Each of the awards are subject to the rules of the LTIP including its good/bad leaver terms and its malus and claw back provisions.

The following awards have been made:

Separate from the above, the Company also announces that it has issued and allotted a total of 21,800 new ordinary shares of 1 penny each in the capital of the Company ("Ordinary Shares") following an exercise of approved options by an employee.

Application has been made to the London Stock Exchange for the 21,800 new Ordinary Shares to be admitted to trading on AIM ("Admission") and it is expected that Admission will become effective, and trading will commence at 8:00 a.m. on or around 26 September 2025.

Following Admission, the total number of Ordinary Shares in issue will be 104,573,126 and the total number of voting rights will therefore be 104,573,126. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

About SDI Group plc:

SDI Group plc is a group of small to medium size companies with specialist industrial and scientific products in growth sector niches which help solve customers' key challenges.

It specialises in the acquisition and development of companies that design and manufacture specialist products for use in lab equipment, industrial & scientific sensors and industrial & scientific products.

Its portfolio of businesses supplies the life sciences, healthcare, plastics and packaging, manufacturing, precision optics and measurement instrumentation markets.

SDI aims to continue its growth through driving the organic growth of its portfolio companies and by the acquisition of complementary technology businesses with established reputations in global markets.

For more information, please see: www.SDIGroup.com

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them: