Exercise of Options

Spectra Systems Corporation

("Spectra Systems" or the "Company")

Exercise of Options

Spectra Systems announces that employees have recently exercised options over 27,334 shares of common stock of $0.01 each in the Company ("Shares"). The Shares are restricted securities as defined in Rule 144 of the US Securities Act of 1933 and have been or will be issued pursuant to an exemption from registration under Rule701 promulgated under the US Securities Act of 1933.

Accordingly the Company will apply for 27,334 Shares to be admitted to trading on AIM and it is anticipated that trading in such shares will commence on 4 June 2019 ("Admission").

Following Admission the Company's issued share capital will comprise:

594,683 shares in the Regulation S stock line ISIN number USU8457D1091 (AIM:SPSC); and

45,302,948 shares in the unrestricted line ISIN number US84756T1060 (AIM:SPSY).

Spectra Systems has no Shares in treasury, therefore 45,897,631 may be used by shareholders, from Admission, as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FCA's Disclosure and Transparency Rules.

Enquiries:

Spectra Systems Corporation

Dr. Nabil Lawandy, Chief Executive Officer Tel: +1 (0) 401 274 4700

WH Ireland Limited

Chris Fielding, Managing Director, Corporate Finance Tel: +44 (0) 20 7220 1650