IMDEX LIMITED — Regulatory Filings 2007

Feb 25, 2007

26 February 2007

The Manager Company Announcements Office Australian Stock Exchange Limited Exchange Centre 20 Bridge Street SYDNEY NSW 2001

Dear Sirs

Appendix 3Y - Change of Directors Interest

Please find attached the Appendix 3Y notice in respect of Mr Bernie Ridgeway, Managing Director of Imdex Limited. This advises the off market sale of 1.5 million shares by Mr Ridgeway to Mr Richard Parfitt and related parties, the former owner of Chardec Technology Ltd.

Yours faithfully Imdex Limited

Paul Evans Company Secretary

About Imdex:

Imdex is a Perth-based public company listed on the Australian Stock Exchange, whose core business is the supply of drilling products and services in Australia and internationally to the oil and gas, mining, water well, horizontal directional drilling and civil industries

For further information, please contact: Bernie Ridgeway, Managing Director; Paul Evans, Company Secretary

Rule 3.19A.2

Appendix 3Y

Change of Director's Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX's property and may be made public.

Introduced 30/9/2001.

Name of entity	IMDEX LIMITED
IA BN	78 008 947 813

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Bernie RIDGEWAY
Date of last notice	28 November 2005

Part 1 - Change of director's relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of "notifiable interest of a director" should be disclosed in this part.

Direct or indirect interest	Indirect
Nature of indirect interest	Interest held by Wear Services Pty Ltd, a
(including registered holder)	Company of which Mr Ridgeway is a
Note: Provide details of the circumstances giving rise to the relevant isterest.	Director
Date of change	23 February 2007
No. of securities held prior to change	5,000,000 ordinary shares held by Wear Services Pty Ltd
	2,000,000 Managing Director Options
Class	Ordinary shares
Number acquired	Nii
Number disposed	1,500,000 ordinary shares

$+$ See chapter 19 for defined terms.

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	\$1,642,500
No. of securities held after change.	ordinary shares held by Wear 3,500,000 Services 2,000,000 Managing Director's Options
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buv-back-	Off-market trade

Part 2 - Change of director's interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of "notifiable interest of a director" should be disclosed in this part.

Detail of contract
Nature of interest
Name of registered holder (if issued securities)
Date of change
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed
Interest acquired
Interest disposed
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation
Interest after change

⁺ See chapter 19 for defined terms.