HYTERRA LTD — Share Issue/Capital Change 2010

May 6, 2010

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www.brainzinstrumentsltd.com

7 May 2010

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

ENTITLEMENT ISSUE SHORTFALL NOTIFCATION

The Board of Directors of Brainz Instruments Limited would like to advise that the shortfall from the recently competed Option Entitlement Issue was 6,367,535.

Pursuant to the previously advised timetable, holding statements for the 31,132,465 Options taken up under the Entitlement Issue will be dispatched on 10 May 2010.

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

Registered Office - Suite 9, 1200 Hay Street, West Perth WA 6005 Postal - PO Box 281, West Perth WA 6872 Auckland Office – C/- KGA Ltd, Orica House, 123 Carlton Gore Road, Newmarket, Auckland NZ ACN 116 829 675 - NZ Company Number 479754