DATELINE RESOURCES LIMITED — Director's Dealing 2026

Mar 17, 2026

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Market Announcement
ASX: DTR | OTCQB: DTREF | FSE: YE1
18 March 2026
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Dateline Resources Limited (ASX: DTR, OTCQB: DTREF, FSE: YE1) ( Dateline or the Company ) provides the attached ASX Appendix 3Y (Change of Director's Interest Notice) on behalf of the Company's Non-Executive Chairman, Mr Mark Johnson.

On 16 March 2026, Mr Johnson transferred all of his shares and all of his options in Dateline that that he held directly (i.e. in his own name) to Mutual Trust Pty Ltd, a third-party custodian services provider. The Transfer was conducted for nil cash consideration.

Importantly, this was an administrative change only. Mr Johnson has not sold any shares or options and remains the Company’s largest shareholder. There has been no change to the number of securities in which he has a relevant interest

While the Transfer results in a change in the nature of Mr Johnson's relevant interest in his Shares under the Corporations Act 2001 (Cth) and notifiable interest in his Shares and Options under the Listing Rules of ASX, there has been no change in the number of Shares or Options in which Mr Johnson has a relevant interest or notifiable interest in.

This ASX announcement has been authorised for release by the Board of Dateline Resources Limited.

For more information, please contact:

Stephen Baghdadi Managing Director +61 2 9375 2353 www.datelineresources.com.au

Andrew Rowell Corporate & Investor Relations Manager +61 400 466 226 a.rowell@dtraux.com

Colosseum Gold-REE Project*

(100% DTR, California, USA) 27.1Mt @ 1.26g/t Au for 1.1Moz Au Over 67% in Measured & Indicated Mineralisation open at depth Bankable Feasibility Study underway Rare earths potential with geology similar to nearby Mountain Pass mine * ASX announcement 26 May 2025

About Dateline Resources Limited

Dateline Resources Limited (ASX: DTR, OTCQB: DTREF, FSE: YE1) is an Australian company focused on mining and exploration in North America. The Company owns 100% of the Colosseum Gold-REE Project in California.

The Colosseum Gold Mine is located in the Walker Lane Trend in East San Bernardino County, California. On 6 June 2024, the Company announced to the ASX that the Colosseum Gold mine has a JORC-2012 compliant Mineral Resource estimate of 27.1Mt @ 1.26g/t Au for 1.1Moz. Of the total Mineral Resource, 455koz @ 1.47/t Au (41%) are classified as Measured, 281koz @1.21g/t Au (26%) as Indicated and 364koz @ 1.10g/t Au (33%) as Inferred.

On 23 May 2025, Dateline announced that updated economics for the Colosseum Gold Project generated an NPV6.5 of US$550 million and an IRR of 61% using a gold price of US$2,900/oz.

The Colosseum is located less than 10km north of the Mountain Pass Rare Earth mine. Planning has commenced on drill testing the REE potential at Colosseum.

Dateline has also acquired the high-grade Argos Strontium Project, also located in San Bernadino County, California. Argos is reportedly the largest strontium deposit in the U.S. with previous celestite production grading 95%+ SrSO4.

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Follow Dateline on socials:

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@Dateline_DTR

@dateline_resources dateline-resources @dateline.resources

Forward-Looking Statements

This announcement may contain “forward-looking statements” concerning Dateline Resources that are subject to risks and uncertainties. Generally, the words “will”, “may”, “should”, “continue”, “believes”, “expects”, “intends”, “anticipates” or similar expressions identify forward-looking statements. These forwardlooking statements involve risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. Many of these risks and uncertainties relate to factors that are beyond Dateline Resources’ ability to control or estimate precisely, such as future market conditions, changes in regulatory environment and the behaviour of other market participants. Dateline Resources cannot give any assurance that such forward-looking statements will prove to have been correct. The reader is cautioned not to place undue reliance on these forward-looking statements. Dateline Resources assumes no obligation and does not undertake any obligation to update or revise publicly any of the forward-looking statements set out herein, whether as a result of new information, future events or otherwise, except to the extent legally required.

The Company confirms it is not aware of any new information or data that materially affects the information included in the announcements dated 23 October 2024 with regard to the Colosseum MRE and 23 May 2025 with regard to Colosseum Project Economics. Similarly, the Company confirms that all material assumptions and technical parameters underpinning the estimates and the forecast financial information referred to in those previous announcements continue to apply and have not materially changed.

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Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

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: DATELINE RESOURCES LIMITED

ABN: 63 149 105 653

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 Mark Johnson Date of last notice 5 September 2025

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.	All of the Shares and Options which Mr Johnson has a notifiable interest in are held by Mutual Trust Pty Ltd, a third-party custodian services provider.
Date of change	16 March 2026
No. of securities held prior to change	• 488,970,438 fully paid ordinary shares in Dateline (each, aShare); and • 97,668,802 quoted options over unissued Shares (2c exercise, 2/8/26 expiry) (each, anOption)
Class	Shares and Options
Number acquired	Nil
Number disposed	Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	N/A
No. of securities held after change	• 488,970,438 Shares; and • 97,668,802 Options.

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

Appendix 3Y Change of Director’s Interest Notice

Nature of change As announced to ASX on 17 March 2026, Mr Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, Johnson transferred all of his Shares and Options participation in buy-back to a Mutual Trust Pty Ltd. While this transfer has resulted in a change in the nature of Mr Johnson's notifiable interest in the Shares and Options the subject of this Appendix 3Y, there has been no change to the number of Shares and Options in which Mr Johnson has a notifiable interest.

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

• See chapter 19 for defined terms. Appendix 3Y Page 2

01/01/2011