18 November 2025

Initial Mineral Resource Estimate at La Debo Project, Côte d'Ivoire

Resolute Mining Limited ("Resolute" or "the Company") (ASX/LSE: RSG), the Africa-focused gold miner, is pleased to announce an initial Mineral Resource Estimate ("MRE") at the La Debo Project in Côte d'Ivoire - a strategically important jurisdiction for Resolute.

La Debo is one of Resolute's key exploration assets in Côte d'Ivoire. The new MRE comprises 643 koz of contained gold which is 60% larger than historical estimates. This has been achieved through exploration success at the G3S prospect on the La Debo permit. The focus of future exploration is on extending the high-grade mineralisation at G3S as well as drill testing targets in the south-western half of the permit. In October 2025, Resolute was granted two new exploration permits, Serihio and Okroyou, that are contiguous to the south of the La Debo permit. Resolute plans to start exploration across these permits in 2026 and sees potential for the resources at the La Debo project to expand further. Depending on results, the MRE may be updated in late 2026.

The Company has over 7 Moz of gold resource across three assets in Côte d'Ivoire. Doropo is the most advanced project with an updated feasibility study expected in December 2025. Following this and granting of the exploitation permit, construction is planned to commence in 2026 with first gold production in 2028. The Company's other exploration project in Côte d'Ivoire is the ABC Project which has a current MRE of 2.2 Moz. An exploration program consisting of approximately 25,000m of RC drilling has commenced and will continue over the next six months.

Exploration remains central to Resolute's growth strategy and a key driver of long-term shareholder value. The Company's ongoing exploration programs are designed to expand resource potential, extend mine life, and unlock new opportunities across its portfolio. In addition to the active exploration campaigns in Côte d'Ivoire, the Company expects to announce updates on its exploration and mine extension activities in Senegal before year-end, reinforcing its commitment to sustained value creation through discovery and development.

Highlights

•    Inferred Mineral Resource Estimate for La Debo (G3N and G3S prospects) of 17.6Mt grading 1.14 g/t Au for 643 koz of contained gold at 0.5g/t cut-off grade versus the historic resource of 400koz grading 1.3 g/t at 0.3 g/t cut-off

•    The gold mineralisation at G3N and G3S is from surface with consistent along strike and downdip grade continuity

•    The Mineral Resources at the G3N and G3S prospects remain open down dip with grades encountered so far increasing at depth at G3S

•    Future exploration will focus on extending mineralisation at depth at G3S as well as testing the strong gold anomaly at the G1 prospect area to the southwest

Chris Eger, Managing Director and CEO commented:

"We are pleased to release an initial JORC resource for the La Debo project in Côte d'Ivoire. The exploration team has done a great job adding over 250 koz of contained gold to the historic resource.

The initial MRE of over 640koz of contained gold forms a strong foundation at La Debo. We are confident of expanding the resources further and will continue exploration over other prospects on the La Debo permit. Moreover, initial exploration work is planned on the two newly granted exploration permits that are only 15 km from the resource announced today.

I would like to highlight that Resolute now has three projects in Côte d'Ivoire - two exploration (La Debo and ABC) and one development (Doropo) - all of which have sizeable gold resources outlined. The country is a key jurisdiction for the Company as we focus on progressing Doropo towards construction.

Overall, today's result demonstrates Resolute's ability to create value through exploration. With exploration projects in Côte d'Ivoire, Senegal and Guinea, Resolute is well-positioned to continue building a diversified pipeline of high-quality projects."

Côte d'Ivoire Portfolio

As shown on Figure 1, Resolute has three projects in Côte d'Ivoire - Doropo, ABC and La Debo - which have a combined gold resources of over 7 Moz.

Doropo is a development project in the northeast of the country. An update of the DFS is underway and is expected to be complete by year-end. Resolute is awaiting granting of the Exploitation Permit after which construction activities are expected to commence in H1 2026. First gold at Doropo is targeted for 2028.

ABC is a greenfield exploration project in the western part of Côte d'Ivoire. The Project consists of four exploration permits (Farako-Nafana, Kona, Windou and Gbemanzo) with two further permit applications (Kato and Gouramba). Currently there is a NI 43-101-compliant Inferred MRE of 2.16 Moz grading 0.9 g/t Au contained within the Kona permit. A first stage RC program of 10,000m has commenced on the Farako-Nafana permit. On the Kona and Windou permits 15,000m of RC and diamond drilling has commenced.

Figure 1: Resolute's Projects in Côte d'Ivoire

The La Debo project is located 280 km west of Abidjan. In Q4 2024, Resolute signed a JV agreement and can earn up to 100% of the project.

In 2016, an initial Preliminary Economic Assessment established a NI 43-101 compliant Inferred Mineral Resource of 400 koz at a grade of 1.3 g/t Au (at 0.5 g/t cut-off). After subsequent deeper Diamond drilling in 2022, the resource was increased but was not reported as NI 43-101 compliant. 

Figure 2: La Debo Project Permits and Prospect Locations

Drilling

Resolute commenced exploration at La Debo in December 2024 with an RC and diamond drilling program to confirm and expand the resources over the two main prospect areas at G3N and G3S. Drilling continued throughout 2025 with a total of 10,037m of RC drilling and 6,600m diamond drilling completed by Resolute to date.

In parallel with the drilling program at G3N and G3S, an extensive auger drilling program has been completed over the south-western half of the La Debo permit to define targets where surface geochemistry is erratic.  This program has confirmed a strong gold anomaly at the G1 prospect area which will be drill tested in early 2026.

The RC and diamond drilling program was successful proving the continuity of the gold mineralisation and confirming the down dip extensions at both G3N and G3S. Results at G3S were particularly encouraging with excellent down dip intersections along the strike length. Select results from the program are as follows.

LBDD0009 - 10.00m @ 4.88g/t from 142.00m

LBDD0024 - 14.00m @ 8.70g/t from 154.00m

LBDD0026 - 9.00m @ 13.40g/t from 155.00m

LBDD0028 - 16.00m @ 4.57g/t from 141.00m

LBRC0034 - 23.00m @ 5.76g/t from 22.00m

LBRC0035 - 5.00m @ 7.29g/t from 120.00m

LBRC0066 - 14.00m @ 4.40g/t from 42.00m

Details of the significant intersections from the drilling program are attached as Appendix 1.

Figure 3. Prospects G3N and G3S

Mineral Resource Estimate

A Mineral Resources Estimate was undertaken on the G3N and G3S prospects within the La Debo project area. The G3N and G3S MREs were developed using wireframe constrained Ordinary Kriged ("OK") estimation methodology, within Leapfrog Indicator wireframes representing a lower cut-off grade of 0.2 g/t Au to form the mineralised envelope.

Gold mineralisation varies from approximately 10 to 50m in thickness (measured across the zone from hanging wall to footwall) with a strike length of 1.6km for G3N and 1.5km for G3S.

The global Mineral Resource is quoted above a cut-off of 0.5g/t.

Table 1: La Debo Mineral Resources at November 2025 (0.5g/t cut off)

The updated MRE of 643,000 oz is a 60% increase over the 400,000 oz resource quoted by previous explorers. The G3N and G3S deposits remain open at depth with G3S drill intersections showing the grade is increasing with depth.

Mineralisation

Gold mineralisation at La Debo is hosted within a sequence of sheared and metamorphosed turbiditic sediments with some minor volcanics.  Gold is related to shears within the meta-sediments and volcanics and the intensity of gold mineralisation correlates with quartz-tourmaline-pyrite veins or disseminated pyrite and veinlets within a shear.

The style of mineralisation is typical of a Birimian orogenic gold deposit. Geometry of the gold mineralisation is NNE to NE striking and steeply south-easterly dipping. The zones vary between 3m and 20m wide.

Figure 4. G3S Cross Section

Figure 5. G3N Cross Section

Future Exploration

Future exploration at La Debo will be focused on extending the high-grade mineralisation intersected at G3S. We plan to commence drilling in the first half of 2026 to test the G3S extensions. Depending on results, the MRE at La Debo may be updated in late 2026.

An extensive auger drilling program has been completed over the south-western half of the La Debo permit to define targets where surface geochemistry is erratic. This has confirmed a strong gold anomaly at the G1 prospect area which will be drill tested in early 2026.

On the newly granted Serihio and Okroyou permits early-stage exploration programs will commence in 2026.

Contact

Authorised by Mr Chris Eger, Managing Director and Chief Executive Officer

Summary of La Debo Resource Parameters

A summary of JORC Table 1 is provided below for compliance regarding the Mineral Resources reported within and in-line with requirements of ASX Listing Rule 5.8.1.

Geology and Geological interpretation

Mineralisation is currently interpreted to have a relatively simple geometry, comprising mineralised shears dipping at approximately 60 degrees to the east-south-east.

G3N shows an unbroken mineralised zone of approximately 1.5km striking at 030°. The mineralised zone dips at approximately 60° to the ESE and shows a relatively tabular zone

Sampling and sub-sampling techniques

Reverse circulation samples were collected on 1m intervals by riffle split (dry) or by scoop (wet) to obtain a 1-3kg sample.

Diamond drill core has been systematically cut lengthwise into half core with a diamond saw. Half core samples were selected for analysis.

Sample preparation includes oven drying, crushing to 10mm, splitting and pulverising to 85% passing - 75μm. These preparation techniques are deemed to be appropriate to the material being sampled.

Reverse circulation and core field duplicates were inserted by the company at a rate of 1:20 samples.

Sampling, sample preparation and quality control protocols are of industry standard, with the intention of ensuring an unbiased representative sample was collected.

Drilling techniques

Drill types used include reverse circulation with face sampling bit and core drilling using HQ and NQ sized bits.

Classification criteria

Mineral Resources were classified in accordance with the Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC, 2012).

The deposit has been classified as Inferred Mineral Resource based on a combination of quantitative and qualitative criteria which include geologic continuity, confidence in volume models, data quality, sample spacing, lode continuity, and estimation parameters (number of informing composites, estimation pass number, kriging quality parameters, and minimum and average distance composites). Even where the geological and statistical factors may support a higher classification, the Inferred status recognised the need for more comprehensive metallurgical understanding. 

The input data is consistent in its coverage of the modelled zones and does not favour or misrepresent the in-situ mineralisation. The definition of the mineralised zones is based on a moderate level of geologic understanding from good quality sample data. Validation of the block model shows good correlation of the input data to the block estimated grades.

Sample analysis method

All samples were dispatched to MSA Yamoussoukro for sample preparation and gold analysis by Chrysos Photon Assay. The analytical method is considered appropriate for the style of mineralisation.

No geophysical tools were used to determine elemental concentrations.

Quality control (QC) procedures included the use of certified standards (1:40), non-certified sand blanks

(1:40) and reverse circulation/core field duplicates (1:20).

Laboratory quality control data, including laboratory standards, blanks, duplicates, repeats, grind size results and sample weights were also captured into the digital database.

Analysis of the QC sample assay results indicates that an acceptable level of accuracy and precision has been achieved.

Basis for selected cut-off grade

The cut-off grade of 0.5g/t is selected based on this being historically used to define the Mineral

Resources at similar deposits in terms of grade, scale and proximity to surface in the Resolute portfolio. Further economic analysis will determine if a different cut-off grade is more appropriate for future La Debo Mineral Resource calculations.

Mining and metallurgical methods and other material modifying factors

Basic metallurgical testwork has been performed with more extensive investigations planned for future sampling campaigns. No mining modifying factors are yet applied to the MRE.

Competent Persons Statement

The information in this report that relates to the Exploration Results, Mineral Resources and Ore Reserves is based on information compiled by Mr Bruce Mowat, a member of The Australian Institute of Geoscientists. Mr Bruce Mowat has more than 5 years' experience relevant to the styles 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" (the JORC Code). Mr Bruce Mowat is a full-time employee of the Resolute Mining Limited Group and holds equity securities in the Company. He has consented to the inclusion of the matters in this report based on his information in the form and context in which it appears. This information was prepared and disclosed under the JORC Code 2012 except where otherwise noted.

The information in this announcement that relates to the Mineral Resource estimate has been based on information and supporting documents prepared by Mr James Woodward, a Competent Person who is a member of The Australasian Institute of Mining and Metallurgy. Mr Woodward is a full-time employee Resolute Mining Limited Group and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which has been undertaken to qualify as a Competent Person. Mr Woodward confirms that the Mineral Resource estimate is based on information in the supporting documents and consents to the inclusion in the report of the Mineral Resource estimate and related content based on the information in the form and context in which it appears.

Cautionary Statement about Forward-Looking Statements

This announcement contains certain "forward-looking statements" including statements regarding our intent, belief or current expectations with respect to Resolute's business and operations, market conditions, results of operations and financial condition, and risk management practices. The words "likely", "expect", "aim", "should", "could", "may", "anticipate", "predict", "believe", "plan", "forecast" and other similar expressions are intended to identify forward-looking statements. Indications of, and guidance on, future earnings, anticipated production, life of mine and financial position and performance are also forward-looking statements. These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause Resolute's actual results, performance and achievements or industry results to differ materially from any future results, performance or achievements, or industry results, expressed or implied by these forward-looking statements. 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 reserves, political and social risks, changes to the regulatory framework within which Resolute 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 Resolute's good faith assumptions as to the financial, market, regulatory and other relevant environments that will exist and affect Resolute's business and operations in the future. Resolute does not give any assurance that the assumptions will prove to be correct. There may be other factors that could cause actual results or events not to be as anticipated, and many events are beyond the reasonable control of Resolute. Readers are cautioned not to place undue reliance on forward-looking statements, particularly in the current economic climate with the significant volatility, uncertainty and disruption caused by the COVID-19 pandemic. Forward-looking statements in this document speak only at the date of issue. Except as required by applicable laws or regulations, Resolute does not undertake any obligation to publicly update or revise any of the forward-looking statements or to advise of any change in assumptions on which any such statement is based. Except for statutory liability which cannot be excluded, each of Resolute, its officers, employees and advisors expressly disclaim any responsibility for the accuracy or completeness of the material contained in these forward-looking statements and excludes all liability whatsoever (including in negligence) for any loss or damage which may be suffered by any person as a consequence of any information in forward-looking statements or any error or omission.

Appendix 1: Recent Drilling Results

La Debo

Notes to Accompany Table:

•      Grid coordinates are WGS84 Zone 29 North

•      RC intervals are sampled every 1m by dry riffle splitting or scoop to provide a 2-3kg sample

•      Diamond core are sampled every 1m by cutting the core in half to provide a 2-4kg sample

•      Cut-off grade for reporting of intercepts is >0.5g/t Au with a maximum of 3m consecutive internal dilution included within the intercept; only intercepts >=3m and >25 gram x metres are reported

•      Recent drill samples are analysed for gold by MSA Labs CPA-Au1 500g sample gamma ray analysis by photon assay instrument whilst prior drill programs included fire assay aas techniques

La Debo

Section 1 Sampling Techniques and Data

Section 2 Reporting of Exploration Results

Section 3 Estimation and Reporting of Mineral Resources