Award of Share Options

27 April 2012

TYRATECH, INC.

("TyraTech" or the "Company")

Award of Share Options

TyraTech, Inc. (AIM: TYR), a natural life sciences company, announces that on 25 April 2012, a total of 3,965,000 Stock Appreciation Right options over common shares of US$0.001 in the Company ("SARs"), were awarded to 20 employees and the directors of the Company (the "Award").

Of the SAR's awarded, Alan Reade, James Hills, Barry Riley and Dr. Kevin Schultz, directors of the Company, were awarded 1,000,000, 350,000, 350,000 and 100,000 SARs, respectively.

The Company now has a total of 8,176,909 SARs outstanding over Common shares at an average exercise price of 18p.

Following the Award:

Alan Reade is interested in 7,561,358 Common Shares representing an interest of 7.03 per cent. of the total voting rights of the Company. In addition, Alan Reade is interested in 2,645,695 SARs in the Company as follows:

Options Held Option Exercise Price Expiry Date

1,000,000 6p 25 April 2022

100,570 12p 6 March 2022

550,000 10.5p 4 February 2020

995,125 12p 10 October 2020

James Hills is interested in 365,500 Common Shares in the Company representing an interest of up to 0.34 per cent. of the total voting rights of the Company. In addition, James Hills is interested in 550,000 SARs in the Company as follows:

Options Held Option Exercise Price Expiry Date

350,000 6p 25 April 2022

200,000 12p 10 October 2020

Barry Riley is interested in 2,255,556 Common Shares in the Company representing an interest of up to 2.10 per cent. of the total voting rights of the Company. In addition, Barry Riley is interested in 550,000 SARs in the Company as follows:

Options Held Option Exercise Price Expiry Date

350,000 6p 25 April 2022

200,000 12p 10 October 2020

Dr. Kevin Schultz is interested in 300,000 SARs in the Company as follows:

Options Held Option Exercise Price Expiry Date

100,000 6p 25 April 2022

200,000 12p 20 October 2020

For further information please contact:

TyraTech Inc.

Alan Reade, Executive Chairman Tel: +1 919 415 4310

Peter Jerome, Chief Financial Officer Tel: +1 919 415 4280

N+1 Brewin, Nominated Adviser and Joint Broker

Aubrey Powell / Robert Beenstock Tel: +44 20 3201 3170

First Columbus LLP, Joint Broker

Chris Crawford Tel: +44 20 3002 2070