HYDROCARBON DYNAMICS LIMITED — Director's Dealing 2023

Jun 4, 2023

Appendix 3Y Change of Director’s Interest Notice

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 30/09/01 Amended 01/01/11

Name of entity Hydrocarbon Dynamics Limited ABN 75 117 387 354

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	Ray Shorrocks
Date of last notice	19 May 2023
Date of this notice	5 June 2023

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(including registered holder)Note: Provide details of the circumstances giving rise to the relevantinterest.	Spring Street Holdings Pty Ltd – Mr RayShorrocks is a director of the CompanyMargot Shorrocks – related personHamish Shorrocks – related personSam Shorrocks – related personStephanie Tetu–related person
Date of change	30 May 2023
No. of securities held prior to change	10,462,050 fully paid ordinary shares
Class	Ordinary Shares
Number acquired	1,000,000
Number disposed	N/A
Value/ConsiderationNote: If consideration is non-cash, provide details and estimatedvaluation	$9,700.00
No. of securities held after change	11,462,050 fully paid ordinary shares

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue On-market trade of securities under dividend reinvestment plan, participation in buyback

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

Part 3 –[+] Closed period

Were the interests in the securities or contracts detailedabove traded during a+closed period where prior writtenclearance was required?	No
If so, was prior written clearance provided to allow thetrade to proceed during this period?	N/A
If prior written clearance was provided, on what date wasthis provided?	N/A

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011