SUNSTONE METALS LTD — Capital/Financing Update 2025

Mar 25, 2025

Market Announcement

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26 March 2025

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Sunstone Metals Ltd (ASX: STM) – Trading Halt

Description

The securities of Sunstone Metals Ltd (‘STM’) will be placed in trading halt at the request of STM, pending it releasing an announcement. Unless ASX decides otherwise, the securities will remain in trading halt until the earlier of the commencement of normal trading on Friday, 28 March 2025 or when the announcement is released to the market.

Issued by

ASX Compliance

Market Announcement 1/1 ASX Customer Service Centre 131 279 | asx.com.au

26 March 2025 ASX Limited

#10882750v1

ASX ANNOUNCEMENT

26 MARCH 2025

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The Manager – Companies

Australian Securities Exchange Limited

20 Bridge Street Sydney NSW 2000 By email: Tradinghaltsydney@asx.com.au

Trading Halt Request – Sunstone Metals Limited (“STM”)

I confirm that Sunstone Metals Ltd (ASX: STM; “Sunstone” or “Company”) wishes to request a Trading Halt in its securities effective immediately in accordance with Listing Rule 17.1.

The Company provides the following information in relation to the request:

• The request for the Trading Halt is pending the release of an announcement regarding a proposed capital raising.

• The Trading Halt is expected to last until the earlier of the Company releasing an announcement, or the commencement of trade on Friday, 28 March 2025.

• The Company is not aware of any reason why the Trading Halt should not be granted and is not aware of any other information to inform the market about the Trading Halt.

Please contact me if you require any further information concerning this matter.

Yours sincerely

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Lucas Welsh Company Secretary

Sunstone Metals Limited ABN 68 123 184 412 ASX: STM

L31, 120 Collins St Melbourne V 3000 Australia

REGISTERED OFFICE

+61 3 7044 2627 info@sunstonemetals.com.au sunstonemetals.com.au