ORBMINCO LIMITED — Capital/Financing Update 2021

Aug 19, 2021

Woomera Mining Limited

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Suite 116, 147 Pirie St Adelaide SA 5000 admin@WoomeraMining.com.au www.WoomeraMining.com.au

20 August 2021

ASX Announcement

EXERCISE OF OPTIONS

Woomera Mining Limited (ASX:WML) (“Woomera” or the “Company”) advises that it has today issued 78 ordinary shares (“Shares”) as a result of the exercise of 78 WMLOA Options, which are exercisable at $0.08 each on or before 18 September 2021.

An Appendix 2A has been released in conjunction with this announcement.

Cleansing Notice

The Company hereby gives notice to the ASX under section 708A(5)(e) of the Corporations Act that as at the date of this notice:

1. the Company issued the Shares without disclosure to investors under Part 6D.2 of the Act;

2. the Company has complied with the provisions of Chapter 2M of the Act as they apply to the Company;

3. the Company has complied with section 674 of the Act; and

4. as at the date of this notice, there is no information:

   • (a) that has been excluded from a continuous disclosure notice in accordance with the ASX Listing Rules;

   • (b) that investors and their professional advisers would reasonably require for the purpose of making an informed assessment of:

     • (i) the assets and liabilities, financial position and performance, profits and losses and prospects of the Company; or

     • (ii) the rights and liabilities attaching to the securities.

This ASX announcement was authorised for release by:

Jonathan W. Lindh

Company Secretary Woomera Mining Limited +61 8 8232 6201