ORBMINCO LIMITED — Capital/Financing Update 2022

Oct 17, 2022

18 October 2022

ASX ANNOUNCEMENT

ISSUE OF PLACEMENT SHARES

Woomera Mining Limited (ASX: WML) (‘Woomera’ or ‘the Company’) is pleased to announce that it has today issued 96,153,846 ordinary shares to professional and sophisticated investors pursuant to the share placement announced on 11 October 2022.

The Company issued a total of 96,153,846 ordinary shares at $0.013 per share to raise $1,250,000 which were issued pursuant to the Company’s 15% placement capacity pursuant to ASX Listing Rule 7.1.

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 which is excluded information (as defined in section 708A(7) of the Corporations Act), except for, as previously announced, the Company completed a 10 hole drilling program at the Mt Cornell and Mt Warren prospects over May and June 2022. With some results received and released to the ASX[1] , and with the other assays being progressively received, once all assay results have been received and subject to QA/QR procedures, Woomera will be able to provide final drilling results as is the Company’s normal protocol. The information is currently incomplete and is not able to released in accordance with the ASX Listing Rules and the JORC Code. Accordingly, at this time, the information is not considered to be information that investors and their professional advisers would reasonably require for the purposes of making an informed assessment of the assets and liabilities, financial position and performance, profits and prospects of the Company, or the rights and liabilities attaching to the Shares.

For further information please contact:

Ian Gordon Luke Forrestal (Media Relations) Duncan Gordon (Investor Relations) Chairman Director, Financial Communications Executive Director Woomera Mining Limited GRA Partners Adelaide Equity Partners + 61 477 306 669 +61 411 479 144 + 61 404 006 444

1 Refer ASX Announcement dated 18 July 2022.

1

About Woomera Mining Limited

Woomera Mining Limited is a focussed mineral explorer. The Company is exploring for battery metals (lithium nickel, copper + PGEs) and gold in the Yilgarn and Pilbara Cratons of Western Australia plus the Musgrave Province in South Australia along with copper-gold mineralisation in the Gawler Craton of South Australia.

2