HYTERRA LTD — Capital/Financing Update 2025

May 25, 2025

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----- Start of picture text ----- HyTerra Limited Phone +61 8 6478 7730Unit 6, 335 Hay Street info@hyterra.comSubiaco Western Australia 6008 ABN 68 116 829 675ASX: HYT hyterra.com----- End of picture text -----

26[th] May 2025

ASX RELEASE

Letter to Option Holders

HyTerra Limited (ASX: HYT) ( HyTerra or the Company ) confirms the attached correspondence has been sent to registered Holders of HYTOA listed Options exercisable at $0.025 per Option with an expiry date of Monday, 30[th] June 2025.

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This announcement has been authorised for release by the Board of Directors.

For more information:

Benjamin Mee Avon McIntyre Executive Director Executive Director info@hyterra.com info@hyterra.com

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----- Start of picture text ----- HyTerra Limited Phone +61 8 6478 7730Unit 6, 335 Hay Street info@hyterra.comSubiaco Western Australia 6008 ABN 68 116 829 675ASX: HYT hyterra.com----- End of picture text -----

26 May 2025

Expiry of Listed Options (ASX: HYTOA)

Dear Option Holder,

We are writing to you as a registered holder of HYTOA listed options ('Options') in HyTerra Limited (ASX: HYT) (Company or HYT), to remind you that the Options will expire on Monday, 30 June 2025.

There are three courses of action available to holders of these soon to expire Options:

1. Exercise the Options

   • To exercise the Options, please complete the personalised Notice of Exercise accompanying this letter and provide the completed Notice of Exercise, together with payment of $0.025 per Option being exercised, in accordance with the instructions on the Notice of Exercise. The completed Notice of Exercise and payment of cleared funds must be received by the Company no later than 30 June 2025. Your Option holding may be exercised in whole or in part.

2. Sell the Options

   • Official quotation of the Options on ASX will cease at close of trading on 24 June 2025, being four business days before the Expiry Date.

3. Do nothing (i.e. allow your Options to expire)

   • If you do not exercise or sell your Options, they will expire on 30 June 2025 and your right to subscribe for fully paid ordinary shares in the capital of the Company at $0.025 per share will lapse.

In accordance with Item 5.2 of Appendix 6A of the ASX Listing Rules, HYT provides Option Holders with the following information:

• The name of the Option Holder, number of Options held and the number of fully paid ordinary shares in the capital of the Company to be issued on exercise of the Options, are contained on the accompanying personalised Notice of Exercise.

• The total number of Options on issue is 219,100,000.

• On exercise, each Option entitles the holder to receive one fully paid ordinary share in the capital of the Company. If all of the Options on issue are exercised, 219,100,000 fully paid ordinary shares in the capital of the Company will be issued.

• The exercise price of each Option is $0.025 ('Exercise Price').

• The due date for payment of the Exercise Price is 30 June 2025 ('Expiry Date').

• If the Options are not exercised or sold by the Expiry Date, they will expire and the Option Holder's right to subscribe for fully paid ordinary shares in the capital of the Company at $0.025 per share will lapse.

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----- Start of picture text ----- HyTerra Limited Phone +61 8 6478 7730Unit 6, 335 Hay Street info@hyterra.comSubiaco Western Australia 6008 ABN 68 116 829 675ASX: HYT hyterra.com----- End of picture text -----

• Official quotation of the Options will cease at close of trading on 25 June 2025, being four business days before the Expiry Date.

• The market price of the Company’s fully paid ordinary shares on 23 May 2025, being the last trading day prior to the date of this notice, was $0.028.

• The highest market price of the Company’s fully paid ordinary shares during the 3 months immediately before this notice was issued was $0.039 on 6 May 2025. The lowest market price of the Company’s fully paid ordinary shares during the 3 months immediately before this notice was issued was $0.028 on 9 April 2025.

• The exercise of the Options is not underwritten.

For the avoidance of doubt, please note the name of the Option Holder is set out in the personalised Notice of Exercise accompanying this letter.

If you have any further questions, please do not hesitate to contact our Registry at 1300 288 664 or via email at hello@automicgroup.com.au.

Yours faithfully Arron Canicais Company Secretary

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