HYDROCARBON DYNAMICS LIMITED — Capital/Financing Update 2024

Oct 28, 2024

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Supplementary Prospectus

Important Information

This is a supplementary Prospectus ( Supplementary Prospectus ) intended to be read with the prospectus dated 10 October 2024 ( Prospectus ) issued by Hydrocarbon Dynamics Limited (ACN 75 117 382 384) ( Company ).

This Supplementary Prospectus is dated 29 October 2024 and was lodged with the Australian Securities and Investment Commission (ASIC) on that date. Neither the ASIC, the ASX, nor their respective officers take any responsibilities for the contents of this Supplementary Prospectus.

Other than as set out below, all details in relations to the Prospectus remain unchanged. Unless the context otherwise requires, defined terms used in this Supplementary Prospectus have the same meanings as given to them in the Prospectus. If there is a conflict between the Prospectus and this Supplementary Prospectus, this Supplementary Prospectus will prevail.

The Prospectus and Supplementary Prospectus may be accessed at https://www.hcdinvestor.com.

This is an important document and should be read in its entirety. If you do not understand it, you should consult your professional advisers without delay.

The Directors believe that the changes in this Supplementary Prospectus are not materially adverse from the point of view of an investor. Accordingly, no action needs to be taken if you have already subscribed for New Shares and New Options under the Prospectus.

1. Purpose of this Supplementary Information

By this Supplementary Prospectus, the Company makes the amendment to the Prospectus as set out in section 2 below to provide further information as to the purpose of the entitlement offer. The amendments to the Prospectus outlined below should be read in conjunction with Prospectus.

2. Amendment to the Prospectus

The Prospectus is amended by inserting the following sentence immediately below the table in section 5.1: Marketing and investment opportunities will be undertaken by the current directors and contractors. Whilst additional costs may be incurred should an investment opportunity be identified; these costs are not quantifiable at this stage.

3. Directors’ authorisation

The Baord confirms that this Supplementary Prospectus is issued by the Company and its issue has been authorised by a resolution of the Directors. In accordance with Section 720 of the Corporations Act each Director has consented to the lodgement of this Supplementary Prospectus with the ASIC.

This Supplementary Prospectus is signed for and on behalf of the Company by:

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Stephen Mitchell Chair Hydrocarbon Dynamics Limited

ABN: 75 117 387 354 Tel: +61 3 9642 2899 | Fax: +61 3 9642 5177 Level 6, 412 Collins Street, Melbourne VIC 3000 Australia