Microsaic Regulatory News (MSYS)

Microsaic Systems plc

("Microsaic" or the "Company")

Allotment of Shares and Directors' Interests

24 June 2013: Microsaic Systems plc (AIM: MSYS), the developer of chip-based scientific instruments, announces that it has allotted 17,185 ordinary shares of 0.25 pence each in the Company ("Ordinary Shares") at a price of 32p per share to The Microsaic Systems Share Incentive Plan ("SIP").

Application has been made for the 17,185 Ordinary Shares to be admitted to AIM, with trading expected to commence on 27 June 2013 ("Admission"). Upon Admission, the new Ordinary Shares will rank pari passu in all respects with the existing Ordinary Shares of the Company.

Following the allotment, Microsaic has 52,508,376 Ordinary Shares in issue.

Two of the Company Directors' interests in the Ordinary Shares of the Company have increased as a result of this allotment:

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About Microsaic Systems

Microsaic Systems develops and sells chip-based scientific instruments for the chemical identification of substances. The Company's products are based on the 'gold-standard' scientific technique of mass spectrometry.

Microsaic Systems has developed a miniaturised mass spectrometer based on its patented, chip-based technologies (ionchip®, spraychip® and vac-chip™), that is smaller, lighter, quieter, more energy efficient and cheaper to run than conventional mass spectrometer systems.

Mass spectrometry is used across many industry sectors, including government, energy, utilities, pharmaceutical, diagnostics and healthcare, environmental, food and drink, security and defence, and industrial chemicals - a combined market of $3 billion in 2012.

Microsaic Systems was established in 2001 by a team including founders from Imperial College London, and was admitted to AIM in April 2011 under the symbol MSYS.

www.microsaic.com