SDI Group plc

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

(AIM: SDI)

Board Changes

SDI Group plc, the AIM quoted group focused on the design and manufacture of scientific and technology products for use in digital imaging and sensing and control applications, is pleased to announce the forthcoming appointment of Ami Sharma as successor to CFO Jon Abell. Ami will join the Board as Chief Financial Officer on 8 August 2022. As previously announced in January 2022, Jon Abell is due to retire in the summer and will assist in an orderly handover until the end of September 2022.

Ami was previously CFO at FTSE 250 listed Ultra Electronics Holdings plc, and Finance Director at Gibbs & Dandy plc.  He has held senior finance roles at Senior plc, Saint Gobain Building Distribution and was previously an audit manager with KPMG. He is a Fellow of the Institute of Chartered Accountants in England and Wales. Ami's commercial experience includes international manufacturing, aerospace and defence.

The Company also announces that Isabel Napper, Non-Executive Director, is stepping down from the board effective 8 August 2022. The recruitment of a new independent Non-Executive Director is well advanced and the Company look forward to making an announcement in due course.

Ken Ford, Chairman of SDI, commented:

"We are delighted to announce the forthcoming appointment of Ami to the Board as Chief Financial Officer. The skillset and experience that he brings to SDI will be invaluable as the business continues to grow.

We would also like to thank Isabel for her help and guidance over the past years. Her advice has been very valuable and we wish her all the best for the future."

Enquiries

SDI Group plc                                                                                                  01223 320480

Ken Ford, Chairman

Mike Creedon, CEO

Jon Abell, CFO

www.sdigroup.com

finnCap Ltd                                                                                                      020 7220 0500

Ed Frisby/Kate Bannatyne/Milesh Hindocha - Corporate Finance

Andrew Burdis/Sunila de Silva - ECM

INFORMATION REQUIRED UNDER RULE 17 AND SCHEDULE 2, PARAGRAPH (G) OF THE AIM RULES FOR COMPANIES ("AIM RULES")

There is no further information to be disclosed in relation to the appointment of Ami Sharma pursuant to Rule 17 and Schedule 2, paragraph (g) of the AIM Rules.

About SDI Group plc:

SDI designs and manufactures scientific and technology products for use in digital imaging and sensing and control applications including life sciences, healthcare, astronomy, manufacturing, precision optics and art conservation. SDI operates through its company divisions: Atik Cameras, Synoptics, Graticules Optics, Sentek, Astles Control Systems, Applied Thermal Control, MPB Industries, Chell Instruments, Monmouth Scientific, Uniform Engineering and Safelab Systems.

SDI continues to grow by developing its own technology advancements and by improving its global sales channels, as well as through pursuing strategic, complementary acquisitions.

www.sdigroup.com

The information contained within this announcement is deemed to constitute inside information as stipulated under the retained EU law version of the Market Abuse Regulation (EU) No. 596/2014 (the "UK MAR") which is part of UK law by virtue of the European Union (Withdrawal) Act 2018. The information is disclosed in accordance with the Company's obligations under Article 17 of the UK MAR. Upon the publication of this announcement, this inside information is now considered to be in the public domain.