HYDROCARBON DYNAMICS LIMITED — Share Issue/Capital Change 2026

May 5, 2026

Appendix 3A.3 - Notification of security consolidation or split

Announcement Summary

Entity name

HYDROCARBON DYNAMICS LIMITED

Applicable security for the reorganisation

HCD
ORDINARY FULLY PAID

Announcement Type

Update to previous announcement

Date of this announcement

6/5/2026

Reason for the Update

Consolidation completed

Refer to below for full details of the announcement

Appendix 3A.3 - Notification of security consolidation or split
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Appendix 3A.3 - Notification of security consolidation or split

Announcement Details

Part 1 - Entity and announcement details

1.1 Name of +Entity
HYDROCARBON DYNAMICS LIMITED

1.2 Registered Number Type
ABN

1.3 ASX issuer code
HCD

1.4 The announcement is
Update/amendment to previous announcement

1.4a Reason for update to a previous announcement
Consolidation completed

1.4b Date of previous announcement(s) to this update
27/3/2026

1.5 Date of this announcement
6/5/2026

1.6 Securities affected by the consolidation or split
ASX +Security Code
HCD
ASX +Security Description
ORDINARY FULLY PAID

Part 2 - Approvals

2.1 Are any of the below approvals required for the consolidation or split before business day 0 of the timetable?
- Security holder approval
- Court approval
- Lodgement of court order with +ASIC
- ACCC approval
- FIRB approval
- Another approval/condition external to the entity required to be given/met before business day 0 of the timetable for the consolidation or split.

Yes

2.2 Approvals
| Approval/Condition | Date for determination | Is the date estimated or actual? | Approval received/condition met? |
| --- | --- | --- | --- |
| +Security holder approval | 28/4/2026 | Actual | Yes |

Comments

Appendix 3A.3 - Notification of security consolidation or split

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Appendix 3A.3 - Notification of security consolidation or split

Part 3 - Consolidation or split timetable and details

3.1 +Record date
1/5/2026

3.2 Date of +security holder meeting
28/4/2026

3.2a Effective date of consolidation or split
28/4/2026

3.3 Last day for trading in the pre consolidation or split +securities
29/4/2026

3.4 Trading in the post consolidation or split +securities commences on a deferred settlement basis.
30/4/2026

3.5 Record date
1/5/2026

3.6 First day for entity to update its register and to send holding statements to +security holders reflecting the change in the number of +securities they hold.
4/5/2026

3.7 Last day for entity to update its register and send holding statements to +security holders reflecting the change in the number of +securities they hold and to notify ASX that this has occurred. (+Issue Date)
8/5/2026

3.8 Trading starts on a normal T+2 basis
11/5/2026

3.9 First settlement of trades conducted on a +deferred settlement basis and on a normal T+2 basis
13/5/2026

Part 4 - Event type and details

4.1 The event is
+Security consolidation

4.1a Consolidation ratio: the +securities will be consolidated on the basis that every
10
(pre-consolidation) +securities will be consolidated into
1
(post-consolidation) +security (/ies).

4.2 Scrip fraction rounding
Fractions rounded up to the next whole number

Appendix 3A.3 - Notification of security consolidation or split

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Appendix 3A.3 - Notification of security consolidation or split

Part 5 - +Securities on issue before and after consolidation or split

5.1 +Securities on issue before and after the consolidation or split

ASX +Security Code	ASX +Security Description
HCD	ORDINARY FULLY PAID
Quoted/unquoted	Number on issue pre consolidation or split	Number on issue post consolidation or split	Estimate/Actual
Quoted	1,437,479,598	143,748,272	Estimated

Part 6 - Further information

6.1 Further information relating to the consolidation or split

6.2 Additional information for inclusion in the Announcement Summary

Appendix 3A.3 - Notification of security consolidation or split