SDI Group plc

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

(AIM: SDI)

Board Appointment

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 Andrew Hosty to the Board as an Independent Non-Executive Director on 8 August 2022.

Andrew spent over twenty years in senior positions at FTSE 250 listed engineering group Morgan Advanced Materials plc, including as CEO of Morgan Ceramics. After leaving Morgan Ceramics, Andrew was CEO at the Sir Henry Royce Institute, the UK's national institute for advanced materials research and innovation. He is currently a Non-Executive director at a number of start-up businesses and has previously been a Non-Executive director of AIM Listed James Cropper PLC and FTSE 250 RHI Magnesita Plc. Andrew has a PhD in Materials Science and is a Fellow of the Royal Academy of Engineering and the Institute of Materials.

Ken Ford, Chairman of SDI, commented:

"We are delighted to announce the forthcoming appointment of Andrew to the Board as Non-Executive Director. His strong background in engineering and technology and extensive board experience will be invaluable to the Board and the Executive team as we continue to focus on all facets of our buy and build strategy"

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

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.

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 Andrew Hosty pursuant to Rule 17 and Schedule 2, paragraph (g) of the AIM Rules.