YANDAL RESOURCES LIMITED — Capital/Financing Update 2025

Aug 31, 2025

ASX Announcement

1 September 2025

RC Drilling Commences Across Arrakis

• A ~2,000m RC drilling program has commenced across the Arrakis Prospect .

• The program will include six to ten RC holes below recent air-core intercepts that define the more than 2.2km mineralised Arrakis trend , including:

• 11m @ 2.1 g/t Au[1] from 90m in 25IWBAC023* , including

  • 7m @ 3.1 g/t Au from 92m.

• 12m @ 1.1g/t Au[1] from 45m in 25IWBAC032.*

• 12m @ 0.5 g/t Au[1] from 70m to EOH in 25IWBAC032.*

• 11m @ 1.4 g/t Au[1] from 71m in 25IWBAC044* , including

  • 6m @ 2.3 g/t Au from 72m.

• 22m @ 0.5g/t Au[1] from 75m in 25IWBAC099* , including

  • 7m @ 1.2 g/t Au from 75m.

• 5m @ 0.7 g/t Au[1] from 112m to EOH in 25IWBAC052.*

*1: Previously released air-core drilling results see ASX releases dated 10 July 2025, 31 July 2025 & 18 August 2025.

• The anticipated completion time for the RC program is 10-16 days , with assays expected within 5-7 weeks.

• The results from the remaining 14 holes from the large-scale Caladan aircore program are expected in the coming weeks.

• Heritage surveys to clear 200m spaced lines across the Arrakis Prospect are scheduled to commence in the next week.

For further information or to ask questions in relation to this announcement, please visit our Investor Hub at https://yandalresources.com.au/link/r8KJve

Yandal Resources Ltd (ASX: YRL , “ Yandal Resources ” or the “ Company ”) is pleased to report that RC drilling has commenced across the Arrakis Prospect located within the large-scale Caladan

Contact Us

A: Suite 1, Level 3, 1138 Hay Street, West Perth WA 6005 T: +61 (0)8 9389 9021

Board and Management

Chris Oorschot Managing Director/CEO Greg Evans Non-Exec Chair Katina Law Non-Exec Director Greg Fitzgerald Company Secretary

E: yandal@yandalresources.com.au yandalresources.com.au | ASX:YRL

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target area . The RC drilling program follows a string of broad-spaced air-core drilling intercepts that have defined the more than 2.2km striking mineralised Arrakis structure (see ASX releases 10 July 2025 , 31 July 2025 & 18 August 2025 ). The 6 to 10 hole RC program aims to test the fresh rock positions below recent air-core intercepts (see Figure 1 ) to confirm mineralisation continuity within fresh rock and define the geometry of the host structures . The completion time for the RC program is 10-16 days, and assays are expected within 5-7 weeks.

The Caladan target area, including the Arrakis Prospect (within E 53/1843, E 53/2304, E 53/2192 and E 53/1882) , is part of the broader Ironstone Well-Barwidgee Gold Project (see Figure 6 ), located 60km south of the Jundee mining complex ( ASX: NST ), and 18km north of the recent Siona discovery , within the Yandal Greenstone Belt.

Looking Ahead

The Company maintains a robust cash position and a very active exploration schedule for the second half of 2025. Notable near-term activities and news flow include;

1. Results from the remaining 14 holes from the large-scale Caladan AC program are anticipated over the coming weeks;

2. The completion of RC drilling across the Arrakis Prospect within 10-16 days;

3. Heritage surveys to clear closer spaced lines across the Caladan target area , including the Arrakis Prospect, are scheduled for late August and September ;

4. RC drilling results from the Arrakis Prospect are expected in 5-7 weeks ;

5. The second phase of AC and RC drilling will commence after the August heritage survey;

6. First results from AC drilling across the New England Granite target area are anticipated in the coming weeks;

7. Completion and settlement of the Gordons Gold Project Tenement Sale Agreement for a total consideration of A$2.81m in cash and Horizon Minerals ( ASX: HRZ ) Shares in the coming months .

Authorised by the board of Yandal Resources

For further information, please contact:

Chris Oorschot Greg Fitzgerald Managing Director Company Secretary Yandal Resources Limited +61 8 9389 9021 yandal@yandalresources.com.au yandal@yandalresources.com.au

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5m @ 0.7 g/t Au to EOH
11m @ 2.1g/t Au Incl.
7m @ 3.1g/t Au
Caladan
12m @ 1.1 g/t Au &
Fold 12m @ 0.5 g/t Au to EOH
11m @ 1.4 g/t Au &
1m @ 1.0 g/t Au to EOH
22m @ 0.5 g/t Au Incl.
7m @ 1.2 g/t Au
Interpreted
Arrakis
Structure
9m @ 1.2 g/t Au Incl.
1m @ 7.7 g/t Au
5m @ 0.4 g/t Au &
5m @ 0.3 g/t Au
----- End of picture text -----

Figure 1: A collar plan over the Caladan target area , showing simplified bedrock geology interpretation across the Caladan and northern Irulan target areas (interpretation based on bottom-of-hole geology). The locations of effective historic drilling (>20m depth, excluding all Eagle Mining and Hunter Resources RAB drilling from 1995) and all Yandal drilling are plotted. Collars are thematically coloured by max Au (g/t) in the hole. Please note that collars coloured black represent holes that have been drilled, with assays yet to be received .

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About Yandal Resources Limited

Yandal Resources has a portfolio of advanced gold exploration projects in the highly prospective Yandal Greenstone Belts of Western Australia.

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Jundee
Ironstone Well-
Wiluna Wiluna Barwidgee
Caladan
Flushing
Meadows
Mt Keith New England
Granite
Bronzewing
Mt McClure
Kathleen Valley
Bellevue
Darlot
Leinster
Thunder Box
King of the Hills
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Figure 2: Yandal Resource exploration Project locations within the Yandal Greenstone Belt.

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Table 1 – Yandal Resources Ltd - Mineral Resource Summary

Deposit	Indicated Inferred Total
	Tonnes (‘000s) Grade (g/t) Au (oz) Tonnes (‘000) Grade (g/t) Au (oz) Tonnes (000’s) Grade (g/t) Au (Oz)
Ironstone Well
Flushing Meadows1	2,141 1.3 91,000 5,245 1.1 177,000 7,386 1.1 268,000
Mt McClure
Challenger2	718 1.9 44,000 718 1.9 44,000
Success3	1,255 1.9 75,000 1,255 1.9 75,000
Parmelia4	252 2.1 17,000 252 2.1 17,000
HMS Sulphur5	1010 1.2 39,000 1010 1.2 39,000
Gilmore6	134 1.7 7,200 134 1.7 7,200
Sub-total - MMC	3,369 1.7 182,200 3,369 1.7 182,200
Gordons
Gordons Dam7	365 1.7 20,000 365 1.7 20,000
Grand-total8	2,141 1.3 91,000 8,979 1.3 379,200 11,120 1.4 470,200

Due to the effects of rounding, totals may not represent the sum of the individual components.

1. Reported above 0.5g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 4 November 2020 for full details. 2. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 22 August 2022 for full details 3. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 6 September 2022 for full details.4. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 20 September 2022 for full details 5. Reported above 0.5g/t Au lower cut-off grade within this announcement 6. Reported above 1.0g/t Au lower cut-off grade within this announcement 7. Reported above 1.0g/t Au lower cut-off grade; refer to Yandal Resources Ltd ASX announcement dated 6 April 2023 for full details 8. All Resources are reported as global estimates, not constrained by optimised pit shells.

Competent Person Statement

The information in this document related to Exploration Targets and Exploration Results, geology and data compilation is based on information reviewed or compiled by Mr Christopher Oorschot, a Competent Person who is a Member of The Australasian Institute Geoscientists. Mr Oorschot is the Managing Director of the Company, is a full-time employee and holds shares and options in the Company. Mr Oorschot has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Oorschot consents to the inclusion in this announcement of the matters based on this information in the form and context in which it appears.

The information in this announcement that relates to the Flushing Meadows, Mt McClure and Gordons Dam Mineral Resource Estimates is based on information compiled and generated by Andrew Bewsher, an employee of BM Geological Services Pty Ltd (“BMGS”). Both Andrew Bewsher and BMGS hold shares in the company. BMGS consents to the inclusion, form and context of the relevant information herein as derived from the original resource reports. Mr Bewsher has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which is being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the JORC ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’.

YRL confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which

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the Competent Person’s findings are presented have not been materially modified from the original market announcement.

Forward Looking Statements

This document may contain certain forward-looking statements. Forward-looking statements include, but are not limited to, statements concerning Yandal Resources Limited’s (Yandal’s) current expectations, estimates and projections about the industry in which Yandal operates, and beliefs and assumptions regarding Yandal’s future performance. When used in this document, words such as “anticipate”, “could”, “plan”, “estimate”, “expects”, “seeks”, “intends”, “may”, “potential”, “should”, and similar expressions are forward-looking statements. Although Yandal believes that its expectations reflected in these forwardlooking statements are reasonable, such statements are subject to known and unknown risks, uncertainties and other factors, some of which are beyond the control of Yandal and no assurance can be given that actual results will be consistent with these forward-looking statements. Drilling results presented indicate geological potential for mineralisation but there can be no certainty that these results will eventually form part of a Mineral Resource Estimate.

Relevant Previous ASX Announcements

• Arrakis Extended to Over 2.2km in Strike, 18 August 2025

• Gordons Tenement Sale Agreement Executed with HRZ, 5 August 2025

• Caladan AC Results Further Extend Arrakis Mineralisation, 31 July 2025

• Caladan AC Shows Early Signs of Scale, 10 July 2025

• Caladan Air-Core Drilling Program Commences, 5 June 2025

• RIU Sydney Presentation, 7 May 2025

• Arrakis RC Drilling Results, 30 April 2025

• Ironstone Well-Barwidgee Exploration Update, 25 February 2025

• Caladan Air-Core Drilling Demonstrates Discovery Potential, 15 January 2025

• Air-core Drilling Commences Across Caladan and Irulan, 10 October 2024

• Oblique Diamond Drilling Results, 3 September 2024

• IWB Soil Results and NEG Diamond Drilling Complete, 12 August 2024

• Large-scale Gold Anomalies Across Emerging Targets, 15 July 2024

• Gold Coast Investment Showcase Presentation, 20 June 2024

• Exploration Update – IWB Ground Gravity Survey, 11 June 2024

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