22 July 2026

Drilling Expands ABC Mineral Resource to over 3.0 Moz of Contained Gold

Resolute Mining Limited ("Resolute" or the "Company") (ASX/LSE: RSG), the Africa-focused gold miner, is pleased to provide an update for its 100%-owned ABC Project ("ABC" or the "Project") in northwest Côte d'Ivoire including an expanded Mineral Resource Estimate ("MRE") and ongoing technical studies.

ABC is a priority growth project, and the Company continues to believe it has the potential to become its fourth mine furthering Resolute's strategy of diversification in West Africa.

Highlights

•     Additional drilling of over 31,000m delivers an expanded Inferred MRE of 133 Mt grading 0.71 g/t Au for 3.0 Moz (at 0.3 g/t cut off, US$3,250/oz Au pit shell)

•     Majority of the updated Mineral Resource is within 250m of surface and both Kona South and Kona Central deposits remain open along strike and at depth, supporting further resource growth potential

•     Planned $15-25 million work programme to drill out deposits and to progress feasibility studies and mining application by the end of 2027

•     Seven rigs on site currently at ABC which will increase to eleven rigs in August with planned 80,000m drill programme underway

•     The work programme over the next twelve to eighteen months is focused on infill drilling, technical studies, environmental and social baseline work, metallurgical testwork and site infrastructure upgrades

Since acquiring ABC in 2025, Resolute has completed over 31,000 m of drilling to expand the existing Inferred MRE of 2.16Moz. Drilling to date by Resolute has confirmed extensions to mineralisation outside the previous Mineral Resource block models, and both Kona South and Kona Central remain open along strike and at depth.

The updated MRE represents an important milestone for the Project. The scale and continuity of mineralisation at Kona South and Kona Central deposits provides confidence in the potential for further resource growth at ABC.

The approved next phase work programme, expected to cost approximately $15-25 million over the next twelve to eighteen months, is designed to advance through feasibility studies. This includes a major infill drill campaign of more than 80,000 m focusing on converting Inferred Mineral Resources to the Indicated category that has commenced in Q2 2026. In parallel, permitting, environmental and technical workstreams will be progressed.

Chris Eger, Managing Director and CEO commented:

"ABC continues to advance as a priority growth project for Resolute in Côte d'Ivoire. Since acquiring the asset last year, we have built strong momentum through exploration with the updated MRE representing a key milestone in the Project's development pathway.

The updated MRE shows the potential scale of ABC. Importantly, mineralisation remains open along strike and at depth at both deposits, and we see clear opportunities for further resource growth through ongoing drilling.

Our focus has now shifted to the next phase of project de-risking and progressing feasibility studies. This will be achieved from the approved work programme which will include further drilling, metallurgical testwork, environmental and social baseline studies, permitting, geotechnical and infrastructure work.

ABC is being advanced with the objective of becoming Resolute's fourth mine in West Africa and our second mine in Côte d'Ivoire. We believe ABC can be an important contributor to our strategy of building a diversified, multi-asset gold platform."

ABC Project Update

The ABC Gold Project is located in northwest Côte d'Ivoire, approximately 550km northwest of Abidjan. Resolute acquired ABC from AngloGold Ashanti in 2025. The Project consists of four exploration permits: Faraka-Nafana, Kona, Windou and Gbemanzo, all of which are 100% owned by Resolute.

Resolute is now progressing the next phase of project definition and de-risking. This includes resource expansion and infill drilling, metallurgical testwork, environmental and social baseline studies, permitting, geotechnical and hydrogeological work and site infrastructure upgrades.

Figure 1: ABC Project Permit Areas

The MRE is over the Kona South and Kona Central deposits. The deposits are approximately 3km apart and are in the southern area of the Kona exploration permit.

The Moya prospect is located 8km north of Kona Central and represents a new growth target within the Kona permit.

Figure 2: Prospect Areas

Drilling Program

Drilling at Kona commenced in February 2026 with the strategy to expand the mineralised footprint of the Kona South and Kona Central prospects. RC and diamond drilling has been undertaken to test the extensions of the mineralised zones to the north and south and down dip.

The programme was successful with economic intersections returned along strike at both Kona South and Kona Central, further demonstrating the continuity and growth potential of the mineralised system. Recent diamond drilling at Kona South also identified extensions to mineralisation at depth, highlighting additional opportunities to expand the resource footprint.

At Kona a total of 149 holes has been completed in 2026 comprised of 124 RC holes for 23,473m and 25 diamond drillholes for 7,645m.

Key Highlights

·      KNRC0525: 53m @ 0.96 g/t Au from 86m

·      KNRC0540: 9m @ 4.99 g/t Au from 19m

·      KNRC0553: 41m @ 1.47 g/t Au from 269m

·      KNRC0554: 66m @ 1.17 g/t Au from 165m

·      KNRC0613: 66m @ 1.09 g/t Au from 176m

·      KNRD0506: 30m @ 1.58 g/t Au from 231m

·      KNRD0551: 33m @ 1.41 g/t Au from 120m

·      KNRD0632: 24m @ 1.54 g/t Au from 236m

Figure 3: Kona South Cross Section at 966560N

Figure 4: Kona Central Cross Section at 972750N

At Kona South, gold is predominantly hosted in psammitic units (north-south striking) dipping approximately 70° west. This unit is sandwiched between a calc-silicate hanging wall to the west and a paragneiss footwall to the east. An additional mafic volcanic unit lies west of the calc-silicate layer, completing the local stratigraphy.

The style of mineralisation is structurally controlled and shows a strong spatial association with arsenopyrite. Arsenopyrite occurs as disseminations and aggregates aligned with the foliation of the psammitic host. Strong silicification is evident within mineralised zones, though quartz veining is rare and does not appear to play a significant role in gold control.

Figure 5: Kona South Long Section

Figure 6: Kona Central Long Section

Moya

Located 8km north of Kona Central, Moya represents a new growth target within the Kona permit. Exploration drilling conducted alongside the broader Kona programmes has successfully identified gold mineralisation at Moya, highlighting its potential to expand the project's mineralised footprint and provide an additional source of future resource growth.

Key Highlights

·      KNRC0442: 7m @ 1.80 g/t Au from 89m

·      KNRC0449: 13m @ 2.21 g/t Au from 28m

·      KNRC0461: 5m @ 4.23 g/t Au from 3m

·      KNRD0624: 31m @ 0.95 g/t Au from 310m

·      KNRD0624: 12.6m @ 1.04 g/t Au from 383m

Updated Mineral Resource Estimate

The updated Mineral Resource Estimate includes both Kona Central and Kona South deposits.

For Kona South, mineralisation was modelled as five discrete and stacked lodes, striking NNW and dipping steeply to the west. Wireframes were built using a lower domain cut-off grade of 0.2g/t and are mostly restricted to the mineralised Psammite unit. The overall modelled strike length is 2.5km with plan thickness of individual lodes up to 65m and a combined plan thickness of the mineralised zone up to 150m. The Kona South grade estimate used a wireframe constrained Ordinary Kriged ("OK") workflow.

Kona Central displays a broad mineralised zone with a modelled extent of 2.6km. Mineralisation strikes to the NNW and dips steeply west. The higher-grade zones within the overall broad envelope are less discrete than at Kona South. Therefore, a bulk zone wireframe was built to encapsulate all mineralised intercepts within the psammite units. Categorical Indicator Kriging (CIK) was applied within the bulk envelope to probabilistically define strongly and weakly mineralised sub-domains. Grade estimates were made into relatively large panel blocks using OK, and post processed through a non-linear Uniform Conditioning (UC) and Localised Uniform Conditioning (LUC) workflow. This method reproduces local grade variability and provides an indicative grade at the assumed eventual selective mining unit (SMU). Acknowledging that the LUC method can result in non-geological artifacts where conditioning data is sparse, a spatial filter was applied to ensure the LUC estimates are used only in areas closer to drill data, while deeper and more distal areas outside of the filter use the OK estimate.

The Mineral Resource for the ABC Project is constrained within an optimised pit shell assuming a gold price of US$3,250/oz and quoted above a cut-off of 0.3g/t (Table 1).

Table 1: ABC Mineral Resource Estimate (at 0.3 g/t cut off, July 2026)

Notes:

·      Mineral Resources are reported in accordance with the JORC Code 2012.

·      Mineral Resources are reported at a cut-off grade of 0.3g/t Au.

·      Mineral Resources are reported on a 100% basis.

·      Mineral Resources have been reported within an optimised pit shell at US$3,250/oz Au

·      Tonnes and ounces are rounded to reflect the precision of the estimate.

·      Mineral Resources are not Ore Reserves and do not have demonstrated economic viability.

·      No Ore Reserve has been declared for the ABC Gold Project.

·      Updated MRE has an effective date of 12/07/2026

Summary of Kona Resource Parameters

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

Geology and Geological interpretation

The ABC project is situated along the main Archean-Birimian Cratonic suture zone in western Côte d'Ivoire, specifically associated with the Sassandra Fault Zone. The principal mineralised feature identified through mapping and sampling is the Lolosso structure, interpreted as a western splay off the major transcurrent Sassandra Fault.

The Kona mineralisation is predominantly hosted in psammitic units (NNW striking) dipping approximately 70° west. The psammites are sandwiched between a calc-silicate hanging wall to the west and a paragneiss footwall to the east.

At Kona South, mineralisation is modelled as five discrete and stacked lodes defining a corridor of combined plan thickness of up to 120m along a strike length of 2.5km. At Kona Central, mineralisation occurs in a broad zone, up to 240m wide, within which strongly and weakly mineralised sub domains are modelled.

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 were sampled by selecting half core.

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 collected by the company at a rate of 1:20 samples.

Sampling, sample preparation and quality control protocols are of industry standard, and all attempts were made to ensure 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 are 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 to composites).In addition, only material residing within the pit shells optimised assuming gold price of US$3,250/oz is included in the Mineral Resource.

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. It is expected that infill drilling will enable conversion of portions of the Mineral Resources to higher confidence categories.

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 0.3g/t is deemed to reflect the likely lower stockpiled grade for an open pit operation suited to the eventual mining of the Kona Mineral Resource. This is supported by preliminary scoping level studies into the Project potential.

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.

Next Phase of Work

Resolute has approved the next phase of work to advance ABC through feasibility studies. This is expected to cost $15-25 million over the next twelve to eighteen months. The work programme includes further infill and extension drilling, technical studies, environmental and social baseline work and metallurgical testwork. Key workstreams include:

Extensive Drill Programme

Resolute is ramping up drilling activity across the ABC Project, with at least 80,000m of drilling to expand the resource further and convert Inferred Mineral Resources into the Indicated category. There are currently 7 rigs onsite at Kona increasing to 11 rigs in August. This is to accelerate the drill programme which is planned to be completed by the end of 2026.

Preliminary drilling at Moya was successful in identifying potential economic mineralisation in the prospective horizon and follow up RC and diamond drilling is planned to be completed in H2 2026.

On the northern end of the Windou permit surface geochemistry has outlined an untested strong gold anomaly. This is planned to be drill tested in H2 2026.

Metallurgical testwork

A comprehensive metallurgical testwork programme is being initiated to improve understanding of ore characteristics and optimise the processing flowsheet. The programme will include additional comminution, gravity, leach, recovery and variability testwork across the Kona Central and Kona South deposits.

Results will be used to refine recovery assumptions, reagent consumption, process design criteria and operating cost estimates for future study phases

Permitting and Approvals

In H2 2026 early work will commence on the Environmental and Social Impact Assessment (ESIA) as well as land access and environmental approvals.

ESIA workstreams include environmental baseline studies, social baseline studies, stakeholder engagement, land access planning and permitting-related activities. The early commencement of the ESIA reflects Resolute's commitment to responsible project development and proactive engagement with local communities, government stakeholders and regulators.

Camp and Site Infrastructure

Resolute is progressing upgrades to the ABC exploration camp to support the expanded field programme and increased site activity. Planned works include accommodation, communications, core handling, sample preparation areas, power, water and general site logistics.

Contact

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

About Resolute Mining

Resolute is an African-focused gold miner with more than 30 years of experience as an explorer, developer and operator. Throughout its history the Company has produced more than 9 million ounces of gold from ten gold mines. The Company is now entering a growth phase through the development of the Doropo project in Côte d'Ivoire which will supplement the existing production from the Syama mine in Mali and Mako mine in Senegal. The Company trades on the Australian Securities Exchange (ASX) and the London Stock Exchange (LSE) under the ticker RSG.

Competent Persons Statement

The information in this report that relates to the Exploration Results is based on information compiled by Mr Bruce Mowat, a member of The Australian Institute of Geoscientists. Mr Bruce Mowat has more than 20 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 of 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 at Kona

Recent drilling Results at Moya

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 >20 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

Comparison with previous Mineral Resource Estimate

The table below shows the global unconstrained Mineral Resource Estimate from the historical 2021 MRE and the updated MRE in this announcement. At a 0.5 g/t cut off the MRE has increased by approximately 31%.

Table 2: ABC Mineral Resource Estimate Comparison (Unconstrained)

JORC Code, 2012 Edition

Additional technical information relating to foreign estimates ASX Listing Rule 5.12

ABC Project - Mineral Resource Estimate (July 2026)

Section 1 Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections.)