HYDROCARBON DYNAMICS LIMITED — AGM Information 2023

Apr 16, 2023

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17 April 2023

Dear Shareholder,

Hydrocarbon Dynamics Limited (ASX:HCD) Annual General Meeting

The Board of Hydrocarbon Dynamics Limited ( Company ) will hold its Annual General Meeting (AGM) of Shareholders at 10.30am (Melbourne time) on Thursday, 18 May 2023 at Baker McKenzie, Level 19, 181 William Street, Melbourne, Victoria.

Shareholders are encouraged to lodge their completed proxy forms in accordance with the instructions in the Notice of Meeting.

The Company will not be dispatching physical copies of the Notice of Meeting (“Notice”) to Shareholders. The Notice is being made available to Shareholders electronically and can be viewed and downloaded online at the following link:

= https://web.automic.com.au/er/public/api/documents/HCD?fileName HCD_Notice_of_Meeting_ __May_2023.pdf

Alternatively, the Notice will also be available on the Company’s ASX market announcements page.

The Company encourages shareholders to submit their votes in advance of the meeting as this will provide the Company with the best opportunity to prepare for the meeting. However, votes may also be submitted during the meeting. Proxy forms must be received by the Company’s share registry, Automic, by 10.30am (AEST) on 16 May 2023.

If it becomes necessary or appropriate to make any changes to the Notice of Meeting the Company will make further information available through the ASX website at asx.com.au (ASX:HCD) and on its website.

Yours Sincerely,

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Julie Edwards Company Secretary

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