Notice of AGM and Posting of Annual Report

6 April 2018

Microsaic Systems plc

("Microsaic" or the "Company")

Notice of Annual General Meeting and Posting of Annual Report

Microsaic Systems plc (AIM: MSYS), the developer of point of need mass spectrometry ("MS") instruments, is pleased to announce that its Annual General Meeting will be held at 11.00 a.m. on 4 May 2018 at the offices of Nplus1 Singer Advisory LLP, One Bartholomew Lane, London, EC2N 2AX. The Annual Report (including the Notice of Annual General Meeting) and the Form of Proxy will be posted to shareholders today. The Annual Report is available on the Company's website at http://www.microsaic.com/investors/documents/.

About Microsaic Systems

Microsaic Systems plc (AIM: MSYS) is a high technology company developing chip-based, bench-top and point-of-analysis mass spectrometry ("MS") instruments that are designed to improve the efficiency of pharmaceutical R&D. The Company is working with established global life science companies to co-develop new solutions to improve productivity in the development of small molecule and novel biologic (peptides, antibodies) medicines. MS is a powerful method of analysis to enable earlier decision making relating to product identification, purity and bioactivity, and is the analytical technique of choice for biochemists across many industry sectors.

Microsaic's core product, the 4500 MiD®, is a robust and compact MS system, retaining the functionality of larger conventional MS systems, is easier to use by non-specialists, consumes less energy and has lower running costs. For more information, please go to www.microsaic.com.