HYTERRA LTD — Director's Dealing 2026

May 20, 2026

HYTERRA

HyTerra Ltd
Unit 6, 335 Hay Street
Subiaco Western Australia 6008
ASX: HYT
Phone +61 8 6478 7730
info@hyterra.com
ABN 68 116 829 675
hyterra.com

21 May 2026

ASX RELEASE

Change of Director’s Interest Notice

HyTerra Ltd (ASX:HYT) (the Company) provides the attached change of director’s interest notice. The Company notes that the change of director’s interest notice was lodged late due to an administrative oversight following the expiry of options. As soon as the oversight was identified, the documents were lodged with the ASX.

The Company and the Directors are aware of their obligations under ASX Listing Rules 3.19A and 3.19B to provide the necessary information to the Company to meet its disclosure requirements.

The Company considers this late lodgement as an isolated breach. The Company has reviewed its procedures regarding director holdings and believes that its current practices are adequate to ensure compliance with the ASX Listing Rules.

This announcement has been authorised for release by the Company Secretary.

For more information, please see: www.hyterra.com

Riley Kemp
Chief Executive Officer
info@hyterra.com

Avon McIntyre
Executive Director
info@hyterra.com

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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	HyTerra Limited
ABN	68 116 829 675

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	Mr. Russell Brimage
Date of last notice	25 October 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 relevant interest.	Pouvoir Pty Ltd (of which Mr Brimage is a beneficiary)
Date of change	30 June 2025 and 20 May 2026

• See chapter 19 for defined terms.
  01/01/2011 Appendix 3Y Page 1

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Appendix 3Y

Change of Director's Interest Notice

| No. of securities held prior to change | • 19,900,000 Fully Paid Ordinary Shares;
• 19,900,000 Options exercisable at $0.025 expiring on 30 June 2025;
• 2,000,000 Class A Performance Rights (Tranche 1);
• 2,000,000 Class A Performance Rights (Tranche 2); and
• 4,000,000 Class B Performance Rights.
• 2,000,000 “Class B” Zero Exercise Price Options, expiring 31 October 2026.
• 2,000,000 “Class C” Zero Exercise Price Options, expiring 31 October 2026.
• 2,000,000 “Class D” Zero Exercise Price Options, expiring 31 October 2026. |
| --- | --- |
| Class | Fully paid ordinary shares and Options exercisable at $0.025 expiring on 30 June 2025 |
| Number acquired | 1,428,571 Fully paid ordinary shares (20 May 2026) |
| Number disposed | 19,900,000 Options exercisable at $0.025 expiring on 30 June 2025 (30 June 2025) |
| Value/Consideration
Note: If consideration is non-cash, provide details and estimated valuation | $20,000 |
| No. of securities held after change | • 21,328,571 Fully Paid Ordinary Shares;
• 2,000,000 Class A Performance Rights (Tranche 1);
• 2,000,000 Class A Performance Rights (Tranche 2); and
• 4,000,000 Class B Performance Rights.
• 2,000,000 “Class B” Zero Exercise Price Options, expiring 31 October 2026.
• 2,000,000 “Class C” Zero Exercise Price Options, expiring 31 October 2026.
• 2,000,000 “Class D” Zero Exercise Price Options, expiring 31 October 2026. |

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

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Appendix 3Y

Change of Director's Interest Notice

Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	Mr Brimage’s participation in the Entitlements Offer as per the Prospectus released on 23 April 2026 and the expiry of unexercised quoted options.

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

Part 3 – $^+$ Closed period

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

Date of Notice: 21 May 2026

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3