RED MOUNTAIN MINING LIMITED — Capital/Financing Update 2025

Aug 21, 2025

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22 August 2025

Dear shareholder,

NOTICE TO ELIGIBLE SHAREHOLDERS OF PRO-RATA NON-RENOUNCEABLE ENTITILEMENT OFFER

On behalf of Red Mountain Mining Limited (the, Company), I am pleased to invite you to participate in this nonrenounceable pro-rata 1 for 3 entitlement offer at an issue price of $0.001 per options ( RMXO Options ) to raise up to approximately $193,499 (before costs) ( Entitlement Offer ).

Under the Entitlement Offer, Eligible Shareholders are entitled to subscribe for 1 RMXO Options for every 3 existing Shares in the Company held on the Record Date, being 5.00pm (AWST) on 19 August 2025 ( Record Date ). Eligible Shareholders may also apply (in excess of their Entitlement) for RMXO Options not subscribed for pursuant to the Entitlement Offer at the same issue price as the Entitlement Offer ( Shortfall Offer ).

The Prospectus relating to the Entitlement Offer has been given to ASX and is available to view on the ASX website and the Company’s website https://www.redmountainmining.com.au/. Further details regarding the Entitlement Offer have also been announced to the ASX and are available on ASX’s website.

The Company will not be printing/dispatching hard copies of the Prospectus or Entitlement and Acceptance forms. Instead, an electronic copy of the Prospectus and your Entitlement and Acceptance Form is available and accessible by you (using your Securityholder Reference Number (SRN) or Holder Identification Number (HIN) from your latest Holding Statement, and your postcode) at the following link: https://investor.automic.com.au.

Shareholders should read the Prospectus in full prior to making an application under the Entitlement Offer. Your application under the Entitlement Offer must be made by making payment in accordance with the personalised payment instructions on your Entitlement and Acceptance Form which is available through Automic’s online Investor Portal.

How to Access the Entitlement Issue:

1. ONLINE - The Entitlement Offer Prospectus and personalised Entitlement and Acceptance form can be accessed via: https://investor.automic.com.au/#/home

2. PAPER - Request a paper copy of the Prospectus and your personalised Entitlement and Acceptance form by contacting the Company’s Share Registry, Automic on 1300 288 664 (within Australia) or: +61 2 9698 5414 (outside Australia).

To download your personalised Entitlement and Acceptance Form, you have the following 3 choices:

I already have an online	I don’t have an online account with	I don’t have an online account with
account with the Automic	Automic and wish to register for one	Automic – but wish to use Automic for
Share registry		this Offer only
https://investor.automic.com.auSelect: "Existing Users Sign In".Once you have successfullysigned in, click on "Documentsand Statements".Download the Prospectus]and Entitlement andAcceptance Form. Submityour payment using thepayment details provided onyour personalised Entitlementand Acceptance form.Do not return your Entitlementand Acceptance Form.	https://investor.automic.com.au/#/signupSelect Red Mountain Mining Limitedfrom the dropdown list in the ISSUERfield.Enter your holder number SRN / HIN(from your latest Holding Statement).Enter a single identifying word fromyour holder name. Enter yourPostcode (Australia) or Country ofResidence (Outside Australia). Tick box"I am not a robot", then ‘Next’ andcomplete any prompts.Once you have successfully signed in,click on "Documents and Statements".Download the Prospectus andEntitlement and Acceptance form.Submit your payment using thepayment details provided on yourpersonalised Entitlement andAcceptance form.Do not return your Entitlement andAcceptance Form.	https://investor.automic.com.au/#/loginsahSelect Red Mountain Mining Limitedfrom the dropdown list in the ISSUERfield.Enter your holder number SRN / HIN(from your latest Holding Statement).Enter a single identifying word from yourholder name. Enter your Postcode(Australia) or Country of Residence(Outside Australia). Tick box "I am not arobot", then ‘Next’ and complete anyprompts.Once you have successfully signed in,click on "Documents and Statements".Download the Prospectus andEntitlement and Acceptance form.Submit your payment using thepayment details provided on yourpersonalised Entitlement andAcceptance form.Do not return your Entitlement andAcceptance Form.

If you are unable to access https://investor.automic.com.au online, you can obtain a copy of the terms and conditions and your acceptance form – initially by calling Company’s Share Registry Automic on 1300 288 664 or emailing corporate.actions@automicgroup.com.au and asking them to mail a paper copy of the terms and conditions and your acceptance form to you free of charge. After your request has been acknowledged by Automic you will need to provide your SRN or HIN and postcode to complete this request. To accept an Offer using these paper copy documents, you will still need to make payment via BPay® or via Electronic Funds Transfer (EFT). For eligible shareholders registered outside of Australia, please follow the instructions on your personalised acceptance form to make payment via Electronic Funds Transfer (EFT).

The Offer closes at 5:00 pm (AWST time) on 2 September 2025.

OFFER TIMETABLE

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*All dates (other than the date of the [Offer Document] and the date of lodgment of the [Offer Document] with the ASIC and ASX) are indicative only. The Directors may extend the Closing Date in respect of the Entitlement Offer and Top-Up Offer by giving at least 3 Business Days' notice to ASX prior to the Closing Date. As such the date the Securities issued under the Offers are expected to commence trading on ASX may vary.

For further information about how to participate in the Offer, please contact Automic Group.

Email: corporate.actions@automicgroup.com.au

Phone: 1300 288 664 (within Australia), or +61 2 9698 5414 (international) between 8:30 am and 7:00pm (Sydney time) Monday to Friday.

Yours sincerely

Mauro Piccini Company Secretary

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Elect to receive communications electronically You have received this letter by post, as you have not provided your email address or elected to receive all communications electronically. We encourage you to elect to receive shareholder communications electronically, to update your communication preference scan the QR code to visit https://investor.automic.com.au