THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION

FOR IMMEDIATE RELEASE

Microsaic Systems plc

("Microsaic" or the "Company")

Update re. Publication of
Annual Report & Accounts

Further to the announcement made on 19 June 2024, Microsaic Systems plc (AIM: MSYS), the developer of micro-electronic instruments and provider of integrated analytical water testing solutions, provides an update on the expected publication date of its annual report and accounts for the year to 31 December 2023 (the "FY23 Accounts").

The Company continues to work with its auditors to complete the audit of the FY23 Accounts, which is progressing more slowly than expected due to unforeseen difficulties in the handover of prior year information between the former and current finance teams. The board have ensured strong financial and governance controls have remained effective throughout this transition. The Company will therefore not be in a position to publish the FY23 Accounts before the end of July 2024 as previously notified. As a result, trading in the Company's ordinary shares on AIM will continue to be suspended pending the publication of the FY23 Accounts.

Notwithstanding the temporary suspension of trading in the Company's ordinary shares, the Company will continue to make announcements as and when there are developments that require announcement in accordance with its obligations under the AIM Rules for Companies.

About Microsaic Systems and Modern Water

Microsaic is highly experienced in microelectronics and development of instrumentation. Having acquired the Modern Water business it has reset, diversified and widened its capabilities into a broader based analytical equipment supply and services company with combined technologies resulting in comprehensive water testing capabilities. The Company has an extensive existing and newly acquired innovative patent portfolio in industry-leading technology designed and developed for "Industry 4.0" application serving markets in diversified Industries, Human and Environmental Health. Microsaic's mini-mass spectrometer system and Modern Water's water testing solutions enables micro level analytics, including PFAS (forever chemicals) detection and characterisation at the point-of-need, whether within a mobile testing capability, conventional laboratory setting, or within a bioprocessing facility for continuous detection of data at multiple steps in the process workflow.

Microsaic's products and solutions are commercially available through global markets via a network of regional and local partners, including manufacturing to service its wider scope point-of-need applications.