Proposed Migration of Shares

24 February 2014

TyraTech, Inc.

("TyraTech" or the "Company")

Proposed Migration of Shares

TyraTech, Inc. (AIM: TYR and TYRU), a natural life sciences company, announces that it intends to carry out a sponsored migration in relation to certain of its common shares of US$0.001 in the Company ("Common Shares"), which trade on the Company's restricted trading line under TIDM 'TYR' with ISIN number USU890581080, to the Company's unrestricted trading line under TIDM 'TYRU' with ISIN number US90239R2031.

The migration is in response to requests received from a number of the Company's shareholders to remove the trading restrictions on their shares and migrate such shares from the restricted to the unrestricted line of stock.

Removal of the trading restrictions allows the shares to be:

· transferred to its unrestricted trading line (TIDM: TYRU); and

· settled (at the election of the shareholder), by means of Depositary Interests, through the CREST electronic settlement system.

The Company is making the necessary arrangements to carry out the migration and will contact shareholders who it believes are eligible to migrate their shares in due course in order to provide them with further instructions on how to do so.

In general, under U.S. securities law, Common Shares that have been in issue for more than one year and are not held by an 'affiliate' of the Company qualify for characterisation as unrestricted Common Shares ("Unrestricted Common Shares"). An affiliate for this purpose is a person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, the Company or a director or officer of the Company. All Unrestricted Common Shares are eligible for migration to, and trading on, the Company's unrestricted TYRU line.

For further information please contact: