SDI Group Regulatory News (SDI)

SDI Group plc

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

Exercise of Options and Total Voting Rights

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 control applications, announces the exercise of share options by an employee of the Company over 32,000 new ordinary shares of 1 pence each in the capital of the Company ("Ordinary Shares") at an exercise price of 23.0 pence per share.

Application has been made to the London Stock Exchange for the 32,000 Ordinary Shares to be admitted to trading on AIM and admission is expected to occur on or around 8.00am 12 April 2021. The new Ordinary Shares will rank pari passu with the existing Ordinary Shares in issue.

Total Voting Rights

For the purpose of the Disclosure Guidance and Transparency Rules, following the above issue of equity, the issued share capital of the Company will comprise 98,291,264 Ordinary Shares. The above 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 Company, under the Disclosure Guidance and Transparency Rules.

FOR FURTHER INFORMATION

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 and Monmouth Scientific.

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.thesdigroup.net