For immediate release: 15 April 2016

TyraTech, Inc.

("TyraTech" or the "Company")

Directors' Dealings

TyraTech, Inc. (AIM: TYR and TYRU), a life sciences technology company focused on nature-derived insect and parasite control products, announces that Jim Hills, Non-Executive Director, purchased 100,000 ordinary shares in the Company on the 14 April 2016 at a price of 5 pence per ordinary share.

Following this transaction, Mr. Hills is interested in 2,129,957 ordinary shares in the Company representing 0.58 per cent of TyraTech issued share capital (voting rights).

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For further information please visit: www.tyratech.com or contact: