RIEDEL RESOURCES LIMITED — Capital/Financing Update 2025

Nov 13, 2025

ASX / Media Announcement 14 November 2025

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Drilling Advances at the Kingman Gold Project, Arizona

HIGHLIGHTS

• Energold Drilling Corp engaged to undertake a 1,100m diamond drill program at the Kingman Gold Project

• Mobilisation scheduled to commence mid-late November, following final site preparations

• Program to target extensions of known high-grade gold and silver mineralisation, to test additional targets, and to generate metallurgical samples

Riedel Resources (ASX: RIE) ( RIE or the Company ) is pleased to announce that it has executed a drilling contract with Energold Drilling Corp to undertake approximately 30 PQ diamond drill holes up to an expected maximum length of 37m per hole (1,100m total) at the Kingman Gold Project in north-west Arizona, USA.

Mobilisation to site is scheduled for the week commencing 17 November 2025. Drilling will focus on obtaining metallurgical samples to advance heap leach testwork, infilling shallow high-grade areas of the Tintic Deposit, and step out extensions to the northwest from hole RC23TT054 (1.52m @ 4.22 g/t Au, 16.6 g/t Ag from 3m) to target future resource growth.

0.17 g/t Au, from 24.38m in RC23TT083), with conceptual holes to test additional high-priority zones.

The JORC Mineral Resource Estimate for the Tintic Deposit currently comprises 494,000t @ 4.0 g/t Au and 43.9 g/t Ag for 64,000 oz Au and 689,000 oz Ag[1] . The mineral resource is high-grade, very shallow oxide from outcrop to 40m and is thus amenable to open pit mining techniques. The resource is open in several directions.

RIE Director Scott Cuomo commented:

"The commencement of the 2025 exploration program at Kingman marks an important milestone in delineating and demonstrating the value of this project. Over the past few years, we have transformed Kingman from an underexplored historic mining area into a project with a very shallow, high-grade initial resource base supported by encouraging metallurgical test work.

This next phase of drilling is designed to build on that foundation by targeting extensions of known mineralisation, testing a series of high-priority targets across the broader project area, and generating further material for metallurgical and other technical studies, as we look to build clear momentum towards development.”

1 Refer to ASX announcement dated 6 December 2023.

Riedel Resources Limited Level 2, 480 Collins Street, Melbourne VIC 3000 admin@riedelresources.com.au | riedelresources.com.au T: + 61 3 9614 0600 | ABN: 91 143 042 022

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Figure 1: Location plan of the Western USA with the Kingman Gold Project situated at the convergence of the Southwest USA Copper Porphyry Belt and the Walker Lane Nevada Gold Belt.

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Figure 2: Kingman Project claim map.

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Figure 3: Kingman Project plan view with 2025 planned collar locations and pre-2025 drill collars.

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Figure 4: Kingman Project plan view with 2025 planned collar locations and pre-2025 drill collars overlayed by magnetics.

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This release has been authorised by the Board of Riedel Resources Limited.

-ENDS-

For further information please contact:

Scott Cuomo – Chairman Riedel Resources Limited Level 2, 480 Collins Street, Melbourne VIC 3000 T: + 61 3 9614 0600 admin@riedelresources.com.au

About Riedel Resources Limited

Riedel Resources Limited is an emerging mineral exploration company focused on advancing the historic highgrade Kingman Gold Project in north-west Arizona, USA.

Further information can be found at the Company’s website www.riedelresources.com.au

Compliance Statements

The information in this release that relates to Mineral Resources at the Tintic Prospect at the Kingman Project is extracted from the Company’s ASX announcement dated 6 December 2023 and titled “Initial High Grade Tintic mineral Resource at Kingman Project, Arizona Provides Near Term Development Opportunity”, and is available to review at www.asx.com.au/markets/company/rie

The Company confirms that it is not aware of any new information or data that materially affects the information included in the relevant original market announcements and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

Forward Looking Statements

This release includes forward looking statements. Often, but not always, forward looking statements can generally be identified by the use of forward looking words such as “may”, “will”, “expect”, “intend”, “plan”, “estimate”, “anticipate”, “continue”, and “guidance”, or other similar words and may include, without limitation statements regarding plans, strategies and objectives of management, anticipated production or construction commencement dates and expected costs or production output.

Forward looking statements inherently involve known and unknown risks, uncertainties and other factors that may cause the company’s actual results, performance and achievements to differ materially from any future results, performance or achievements. Relevant factors may include, but are not limited to, changes in commodity prices, foreign exchange fluctuations and general economic conditions, increased costs and demand for production inputs, the speculative nature of exploration and project development, including the risks of obtaining necessary licences and permits and diminishing quantities or grades of resources or reserves, political and social risks, changes to the regulatory framework within which the company operates or may in the future operate, environmental conditions including extreme weather conditions, recruitment and retention of personnel, industrial relations issues and litigation.

Forward looking statements are based on the company and its management’s good faith assumptions relating to the financial, market, regulatory and other relevant environments that will exist and affect the company’s

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business and operations in the future. The company does not give any assurance that the assumptions on which forward looking statements are based will prove to be correct, or that the company’s business or operations will not be affected in any material manner by these or other factors not foreseen or foreseeable by the company or management or beyond the company’s control. Although the company attempts to identify factors that would cause actual actions, events or results to differ materially from those disclosed in forward looking statements, there may be other factors that could cause actual results, performance, achievements or events not to be anticipate.

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