24 June 2016

Company Announcements Office ASX Limited

Exchange Centre 20 Bridge Street

SYDNEY NSW 2001

Dear Sir/Madam,

IMDEX TO APPOINT NEW CHAIRMAN

216 Balcatta Road, Balcatta Western Australia 6021

PO Box 1262, Osborne Park Western Australia 6916

Tel: +61 (0) 8 9445 4020

Fax: +61 (0) 8 9445 4042

[email protected] www.imdexlimited.com ABN 78 008 947 813

The Board of Imdex Limited (Imdex, ASX: IMD) today announces the appointment of Mr. Anthony Wooles as Non-Executive Chairman of the Company, effective, 1 July 2016.

Mr. Wooles is a highly qualified and successful professional who has held executive and advisory roles with leading private and public companies. His diverse industry experience includes: mining; oil and gas; power generation; manufacturing; telecommunications; food and beverages and retail. He also has extensive knowledge of financial and capital markets.

Mr. Wooles is currently the Chairman of Bhagwan Marine Pty Ltd, the largest inshore marine services company in Australia and HighPeak Royalties Limited (ASX: HPR). He was the Founder of PearlStreet Limited, which became the largest NDT and Metallurgical Inspection company in Australia.

In his advisory capacity Mr. Wooles was a Principal at Marakon Associates, a management consulting firm based in New York and was the founder of The Trudo Group, a Perth-based shareholder value advisory firm. Mr. Wooles has worked closely with companies including BHP Minerals; Coles Myer; Telstra; Coca-Cola Amatil; FAL and Western Power.

His professional qualifications include: a Bachelor of Commerce (Economics) from Deakin University, a Graduate Diploma of Securities Analysis from the Securities Institute of Australia and a MBA (Finance) from the Wharton School of the University of Pennsylvania.

Mr. Wooles is also a Fellow of the Australian Institute of Company Directors and a Senior Associate of the Financial Services Institute of Australasia.

Mr. Ross Kelly retires as Non-Executive Chairman on 30 June 2016. Imdex's Board of Directors and employees wish to thank him for his support and leadership of the Company since 2004.

Yours faithfully

Imdex Limited

Paul Evans

Company Secretary

Providing innovative drilling fluids and advanced down hole instrumentation worldwide.