Director/PDMR Shareholding

25 October 2013

TYRATECH, INC.

("TyraTech" or the "Company")

Director/PDMR Shareholding

The Company has received notification that on 25 October 2013, Barry Riley, Non-Executive Director of the Company, completed the sale and repurchase, of a total of 273,334 common shares of US$0.001 in the Company ("Common Share") at a sale price of 5.5 pence per Common Share and a repurchase price of 5.52 pence per Common Share, in order to effect the transfer of 136,667 Common Shares to the Individual Savings Account ("ISA") of Barry Riley and 136,667 Common Shares to the ISA of Barry's wife, Mrs. B. Riley.

Following this transaction, Barry Riley remains beneficially interested in 2,455,556 Common Shares representing an interest of 1.46 per cent of the total voting rights of the Company. In addition, Barry Riley is interested in 550,000 stock appreciation right options over Common Shares as follows:

For further information please contact:

TyraTech Inc.Alan Reade, Non-Executive ChairmanTel: +44 7841 978 709

Bruno Jactel, Chief Executive Officer

Tel: +1 919 415 4340

N+1 Singer, Nominated Adviser and Joint BrokerJonny Franklin-Adams / Alex WrightTel: +44 20 7496 3000

First Columbus LLP, Joint BrokerChris CrawfordTel: +44 20 3002 2070

Walbrook, Financial PR and IR

Bob Huxford /Guy McDougall (Public Relations)

Tel + 44 7933 8792

Paul Cornelius (Investor Relations)

Tel +44 20 7933 8794