HYTERRA LTD — Board/Management Information 2009

Nov 3, 2009

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www.brainzinstrumentsltd.com ARBN 116 829 675

ASX Announcement

4 November 2009

The Manager Company Announcements Office Australian Securities Exchange Ltd 4th Floor, 20 Bridge Street SYDNEY, NSW 2000

BOARD CHANGES

The Board of Directors of BrainZ Instruments Limited (“BrainZ” or the “Company”) wish to advise that it has today accepted the resignations of Dr Damian Pethica as Chairman and Dr James Brown as a Director of the Company. The Board wish to thank Dr Pethica and Dr Brown for their contributions and wish them well with their future endeavours.

The Board is pleased to announce the appointments of Mr Keith Goodall as Chairman and Mr Garry Ralston as a non-executive Director of the Company.

Mr Goodall has over 30 years experience in the chartered accounting profession in both New Zealand and the United Kingdom. A large part of his professional work is involved in providing advice on mergers and acquisitions, business sales and purchases, valuing businesses and shares in companies, undertaking forensic accounting assignments and providing advisory services with respect to corporate structuring and financing.

Mr Goodall established Keith Goodall and Associates in 1989. Prior to this he was a partner in the National Chartered Accounting firm of Lawrence Andersen Buddle which at that time was the Arthur Andersen associated firm in New Zealand which was then one of the major eight international accounting and consulting firms.

Mr Goodall is currently Chairman of several major private company groups, Deputy Chairman of a substantial charitable Trust involved in education services in New Zealand and internationally and a non-executive Director of a significant telecommunications company. He has previously sat on the Boards of public companies both in New Zealand and Australia and also held appointment as a Government appointee to a substantial state owned business. He was deputy Chairman of Perth based, ASX listed company iiNet Limited for three years until late 2006.

Mr Goodall has regularly given evidence as an expert in Family Court and High Court proceedings as well as in arbitrations and mediations since 1984.

Mr Ralston has been directly involved in the banking and finance industry for over 35 years. Mr Ralston was a co-founder and until recently a director of Finance and Systems Technology (FAST) which is one of Australia's premier mortgage aggregators. Mr Ralston is also a director and cofounder of Select Mortgage Services.

Mr Ralston was the founding Chairman of Prudential West Pty Ltd which subsequently changed its name to Enviromission Limited and is an ASX listed company. During the last three years Mr Ralston has served as a Director or Chairman of Fortuna Minerals Limited, Tomahawk Energy Limited (resigned 23 May 2007) and Augustus Minerals Limited.

Yours faithfully,

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Mathew Walker Director

For further information please contact:

James Robinson, Company Secretary, BrainZ Instruments Limited, Tel: + 61 (8) 6460 4960