Additional Listing

6 January 2015

Immunodiagnostic Systems Holdings plc (the "Company")

Additional Listing

Application has today been made to AIM for admission of 8,345 new Ordinary Shares of 2 pence each in the Company ("Shares"). These Shares, which will rank pari passu in all respects with the existing shares in issue, are being issued pursuant to the exercise of options granted in 2004, under a bespoke share option agreement.

Admission is expected to become effective on 12 January 2015. Following admission to trading of the Shares, the Company will have 29,215,175 Ordinary Shares of 2 pence each in issue.

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About Immunodiagnostic Systems Holdings PLC:

The Group's vision is to be a leading solution provider to the clinical laboratory diagnostic market. IDS's strategy is focused on developing, internally and through partnership, its automated assay menu for its proprietary automated immunoassay analyser, the IDS-iSYS system. Internally the Group is focused on developing an endocrinology excellence menu and externally IDS works with partners to develop assay panels in complementary indication fields. The Group sells its products primarily in the clinical laboratory market across a range of customers from reference laboratories to physician office laboratories. IDS has field sales forces in certain European countries, including France and Germany, the United States and Brazil and works with distributors in other markets including China, Italy and Spain.