DATELINE RESOURCES LIMITED — Major Shareholding Notification 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 ASIC Form 604 (Notice of Change of Interests of Substantial Holder) 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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page 1/3 13 March 2000

604

Form 604

Corporations Act 2001 Section 671B Notice of change of interests of substantial holder

To: Company Name/Scheme Dateline Resources Limited (“DTR”) ACN/ARSN 149 105 653 1. Details of substantial holder (1) Name Mark Roderick Granger Johnson ACN\ARSN (if applicable) There was a change in the interests of the substantial holder on 16.03.26 The previous notice was given to the company on 24.10.25 The previous notice was dated 24.10.25

2. Previous and present voting power

The total number of votes attached to all the voting shares in the company or voting interests in the scheme that the substantial holder or an associate (2) had a relevant interest (3) in when last required, and when now required, to give a substantial holding notice to the company or scheme, are as follows:

Class of securities (4)	Previousnotice	Previousnotice	Presentnotice	Presentnotice
	Person’svotes	Voting power(5)	Person’svotes	Voting power(5)
FPO shares in DTR	488,970,438	14.14%	488,970,438	13.42%

3. Changes in relevant interests

Particulars of each change in, or change in the nature of, a relevant interest of the substantial holder or an associate in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme, are as follows:

	Date of change	Person whose relevant interest changed	Person whose relevant interest changed		Nature of change (6)	Nature of change (6)	Nature of change (6)	Consideration given in relation to change (7)	Class and number of securities affected	Class and number of securities affected	Person’s votes affected	Person’s votes affected
	16.03.26	Mark Roderick Granger Johnson			Mr Johnson has transferred the entirety of his (previously) direct holding of shares in DTR to Mutual Trust Pty Ltd, a third-party custodian services provider. While there has been a change in the_nature_ of Mr Johnson's relevant interest (as that term is defined in section 608 of the Corporations Act 2001(Cth) (Corporations Act)) in the shares the subject of this ASIC Form 604, there has been no change in the _number_of DTR shares in which Mr Johnson has a relevant interest in.			N/A	488,970,438 FPO shares in DTR		488,970,438
					holder in voting securities afterthe change are asfollows:
Holder of relevant interest			Registered holder of securities			Person entitled to be registered as holder (8)	Nature of relevant interest (6)			Class and number of securities		Person’s votes

		604 page 2/3 13 March 2000	604 page 2/3 13 March 2000	604 page 2/3 13 March 2000	604 page 2/3 13 March 2000
Mark Johnson	Mutual Trust Pty Ltd	Mark Johnson	Pursuant to s608(1)(b) of the Corporations Act, Mr Johnson has a relevant interest in all of the shares the subject of this Form 604 because he has the power to exercise, or control the exercise of, a right to vote attached to those DTR shares. Pursuant to s608(1)(c) of the Corporations Act, Mr Johnson has a relevant interest in all of the shares the subject of this Form 604 because he has the power to dispose of, or control the exercise of a power to dispose of, those DTR shares.	488,844,007 FPO shares	488,844,007
Mark Johnson	Mutual Trust Pty Ltd	Stewart Capp	Mr Johnson has a relevant interest in the shares referred to across under s608(1)(b) (re votes) and s608(1)(c) (re disposal) as a result of a historical share sale and loan agreement between Mark Johnson and Stewart Capp.	107,275 FPO shares	107,275
Mark Johnson	Mutual Trust Pty Ltd	George Niumataiwalu	Mr Johnson has a relevant interest in the shares referred to across under s608(1)(b) (re votes) and s608(1)(c) (re disposal) as a result of a historical share sale and loan agreement between Mark Johnson and Mr Niumataiwalu.	15,325 FPO shares	15,325
Mark Johnson	Mutual Trust Pty Ltd	Denise Poke	Mr Johnson has a relevant interest in the shares referred to across under s608(1)(b) (re votes) and s608(1)(c) (re disposal) as a result of a historical share sale and loan agreement between Mark Johnson and Ms Poke.	3,831 FPO shares	3,831

5. Changes in association

The persons who have become associates (2) of, ceased to be associates of, or have changed the nature of their association (9) with, the substantial holder in relation to voting interests in the company or scheme are as follows:

Name andACN/ARSN(ifapplicable)	Nature ofassociation
N/A

6. Addresses

The addresses of the persons named in this form are as follows:

Name	Address
Mark Johnson	Level 17, 167 Macquarie Street, Sydney, NSW 2000
Mutual Trust Pty Ltd	Level 18, 126 Phillip Street, Sydney, NSW 2000
Stewart Capp	PO Box 1143, Devonport, TAS 7006
George Niumataiwalu	35 Reservoir Road, Suva, Fiji
Denise Poke	21 Brownriggs Road, Wynyard TAS 7325

Signature

print name Mark Johnson

capacity

sign here

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date 17.03.26