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METALSGROVE MINING LTD Capital/Financing Update 2025

Dec 10, 2025

65325_rns_2025-12-10_fa715931-8ac9-471a-9efe-112f71b0d06b.pdf

Capital/Financing Update

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MetalsGrove Expands its Footprint in Côte d’Ivoire to 75 km Strike-length

11 December 2025

HIGHLIGHTS

  • MetalsGrove has expanded its gold exploration assets in Côte d’Ivoire , West Africa, by securing the high-potential Stellar Joint Venture (JV)

  • This acquisition complements the earlier acquisition of three gold JV permits earlier this year

  • The Zuénoula permit (PR-750) , owned by TSX-V-listed Stellar AfricaGold Inc., is strategically located between MetalsGrove’s Kounahiri West and Vavoua permits, and gives MetalsGrove contiguous exploration control over 75-strike-km of this highly prospective greenstone belt

  • The Zuénoula permit (395.78 km²) also expands MetalsGrove’s total controlled exploration footprint to 1,315 km²

  • The geological characteristics and structural complexity of MetalsGrove’s JV project areas are interpreted to be highly favourable for the discovery of large gold deposits

  • Extensive artisanal mining activity within the district also highlights untapped gold deposit discovery potential

  • Granted on April 17, 2024, the Zuénoula permit allows immediate commencement of exploration activities by MetalsGrove

  • MetalsGrove is well positioned to initiate surface sampling activities this month , with the objective of defining gold corridors to be followed by drill testing.

MANAGEMENT COMMENTARY

Managing Director and CEO, Mr Lijun Yang, commented:

“The acquisition of the Zuénoula permit through forming a joint venture with Stellar AfricaGold marks a significant milestone in the expansion of our West African gold exploration portfolio. This strategic addition builds on our recent consolidation of three gold permits in central-west Côte d’Ivoire, increasing our total landholding to 1,315 km² in one of the most prospective yet underexplored gold provinces in the region.

The location of the Zuénoula permit, adjacent to our existing Kounahiri West and Vavoua permits, creates a contiguous exploration corridor with shared geological characteristics, including favourable lithological sequences, complex structural features, and active artisanal workings, all of which are strong indicators of gold mineralisation potential.

Through this acquisition, we are rapidly moving forward and will commence surface sampling programs this month, with the objective of identifying gold trends (gold corridors) and significant gold anomalies along these trends. Drill testing of these gold exploration targets will follow soon after. Our approach remains methodical and data-driven, leveraging regional knowledge and partnerships to unlock value efficiently and sustainably.”

Page 1 of 13

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MetalsGrove Mining Limited ( ASX: MGA ) (“ MetalsGrove ” or the “ Company ”) is pleased to announce that, following the acquisition of three Central West Gold joint venture (JV) permits in Côte d’Ivoire, West Africa, earlier this year, the Company has entered into another JV with Aucrest Sarl, an Ivorian subsidiary of TSX-V listed Stellar AfricaGold Inc. (TSX-V-SPX) (“ Stellar JV” ) covering its PR750-Zuénoula permit (Zuénoula), which is located between the existing MetalsGrove controlled Kounahiri West and Vavoua Permits in the same Birimian greenstone belt.

The addition of the Zuénoula permit to the Company’s existing three joint ventured gold permits, now covering a combined area of 1,315 km² , are strategically situated along the Abujar–Napié gold trend within the Oumé–Fetekro Birimian greenstone belt in central Côte d’Ivoire, 100km north of the Abujar Gold Mine and 160 km south of the Napié Gold Deposit (Figure 1). Further details of the permits are provided in Table 1.

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Figure 1. Map illustrating location of Stellar JV permit together with Central West Gold JV permits in Côte d’Ivoire

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Figure 2. Map of the Kounahiri Area JV Projects and Historical Exploration Results[1]

Table 1. MetalsGrove Gold JV Permits

Name Permit ID Type Status MGA Ownership Area
**(Km2) **
Zuénoula PR-750 Exploration Granted Earning up to 80% 395.78
Vavoua PR-454 Exploration Application Earning up to 80% 378.25
Kounahiri West PR-1063 Exploration Application 90% on granting 338.48
Vavoua West 0544DMICM31/03/2022 Exploration Application 90% on granting 203.33
Total Area 1,315.84

1 Historical BLEG results sourced from African Gold Limited Annual Report 2023; Historical Auger drilling result sourced from Ricca Resources Limited Financial Report for half year ending 31 December 2021

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Zuénoula Permit (PR750) and Exploration Plans

The Zuénoula permit was granted on 17 April 2024 and covers a highly prospective area of structurally disrupted greenstone intruded by granite. The Central West Gold JV tenements (3) and the Stellar JV tenement (1) together provide MetalsGrove a commanding exploration position along this gold mineralised belt of volcanic and metasediment greenstone, with the Abujar Gold Mine (3.3 Moz.) to the south。 In addition, there are historical auger and BLEG gold soil geochemistry anomalies in areas immediately adjacent to, and along-strike of the MetalsGrove project area (Figure2). MetalsGrove is not aware of any historical systematic exploration having been conducted within the Zuénoula permit area.

Initial Soil Sampling Program (Program 1)

An initial soil sampling program on the Zuénoula permit, excluding agricultural areas and settlements, shall commence in this month (Figure 3). Approximately 300 soil samples shall be collected on a 1km by 1km offset grid pattern, with the samples assayed on-site using the new and innovative PortablePPB technique developed in Australia. The sampling and assaying shall be conducted by the highly professional and experienced SEMS Exploration Services (SEMS) team which have been operating in West Africa for over 20 years. The assay results will be available within 48 hours of sample collection, enabling infill soil sampling to be conducted before the sampling crew has been demobilised. It is anticipated that the first results shall be reported in February 2026.

will be conducted on 400m by 100m and then 200m by 50m spacing to fine-tune the gold targets. The follow up sampling will be analyses with conventional fire assay and should provide robust targets for drill hole planning.

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Figure 3. Map illustrating planned initial soil sampling program on Zuénoula permit

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Joint Venture Summary

Payment:

  • MetalsGrove to pay US$50,000 upon signing to secure exclusivity and initiate the partnership.

  • MetalsGrove to pay US$1,000,000 in cash upon reaching 1,000,000 ounces of gold resources with at least 500,000 ounces in the Indicated category.

Management & Governance :

  • Management Committee : comprising two representatives from Stellar and two representatives from MetalsGrove to oversee the JV. While MetalsGrove is sole funding the JV or has a contributing JV interest of more than 50% it can nominate the Chaiman, who has a casting vote. When the parties each hold a 50% JV interest and are contributing to expenditure, the Chairmanship role rotates on an annual basis.

  • Operatorship : MetalsGrove has operatorship of the Zuénoula project while it is sole-funding exploration.

Earn-in Structure and Joint Venture Equity :

  • MetalsGrove is required to spend a minimum of US$150,000 by 16 April 2026 before it can withdraw from the JV.

  • If MetalsGrove elects to withdraw before earning a 50% stake, it retains no interest in the JV.

  • MetalsGrove is required to invest US$1,000,000 by 16 July 2027 to maintain its interest in the JV.

  • MetalsGrove can then invest an additional US$2,000,000 by 16 April 2029 to acquire a 50% interest in the JV, at which stage Aucrest can elect:

  • to allow MetalsGrove to continue funding up to an additional US$3,000,000 to take its JV interest to 80% ; or

  • to co-fund the JV.

  • If Aucrest elects to allow MetalsGrove to continue sole funding, MetalsGrove may elect at any time to cease sole funding, and it will have a 50% joint venture interest.

  • When both parties are contributing to expenditure, if a party ceases funding, its JV interest will dilute pursuant to an industry standard formula.

  • If either party’s JV interest falls below 10% it converts to a 1% Net Smelter Royalty.

Pre-existing Arrangements :

  • There is a 1% Net Smelter Royalty to Elemental Altus which will remain a JV obligation .

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This announcement was authorised for release by the MetalsGrove Mining Ltd Board of Directors.

SHAREHOLDER ENQUIRIES MEDIA ENQUIRIES Mr Lijun Yang Sam Burns Managing Director & CEO SIXº Investor Relations MetalsGrove Mining Ltd +61 400 164 067 [email protected] [email protected]

COMPETENT PERSON STATEMENT – EXPLORATION STRATEGY

The information in this announcement relating to exploration strategy and results is based on information provided to and compiled by Mr Robert Perring, who is a current member of the Australian Institute of Geoscientists (MAIG) and Exploration Manager of MetalsGrove Mining Limited.

Mr Perring has sufficient experience, which is relevant to the style of mineralisation and exploration processes as reported herein, 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 Perring consents to the inclusion of the information contained herein in the form and context in which it appears in this announcement.

FORWARD LOOKING STATEMENTS

This announcement may contain certain “forward-looking statements” which may not have been based solely on historical facts but rather may be based on the Company’s current expectations about future events and results. Where the Company expresses or implies an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and believed to have a reasonable basis.

However, forward-looking statements are subject to risks, uncertainties, assumptions, and other factors which could cause actual results to differ materially from future results expressed, projected or implied by such forward-looking statements. Such risks include, but are not limited to, exploration risk, mineral resource risk, metal price volatility, currency fluctuations, increased production costs and variances in ore grade or recovery rates from those assumed in mining plans, as well as political and operational risks in the countries and states in which we sell our product to, and government regulation and judicial outcomes.

For a more detailed discussion of such risks and other factors, see the Company’s website about the Company’s other filings. Readers should not place undue reliance on forward-looking information. The Company does not undertake any obligation to release publicly any revisions to any “forward-looking statement” to reflect events or circumstances after the date of this announcement, or to reflect the occurrence of unanticipated events, except as may be required under applicable securities laws.

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JORC Code, 2012 Edition – Table 1

Section 1- Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections)

Criteria
JORC Code Explanation
Commentary
Sampling
Techniques
Nature and quality of sampling (e.g.
cut channels, random chips, or
ifi ilid idt tdd
• No drilling has been undertaken.
Sil Sli (PtblPPB)Iitil bd
specc specaze nusry sanar
measurement tools appropriate to the
o ampng orae:na roa-
spaced (1km by 1km) soil sampling
minerals under investigation, such as supported by rapid field analysis of samples
down hole gamma sondes, or using the PortablePPB analytical technique is
handheld XRF instruments, etc.) These planned so that gold anomalous trends can
examples should not be taken as be identified, and infill sampling conducted
limiting the broad meaning of before the field crew is demobilized.
sampling. • MGA has provided SEMS Exploration
Include reference to measures taken Services with an Excel table listing the
to ensure sample representivity and designated sample point locations using
the appropriate calibration of any WGS-84 UTM zone 29N coordinates
measurement tools or systems used. • Each soil sample to be collected from
Aspects of the determination of within 100 metres of the designated
mineralisation that are Material to the sample point, with the actual sample
Public Report. point then recorded

• At each sample point: 1) brush away all
In cases where ‘industry standard’ work organic material from the surface, 2) dig a

has been done, this would be

15cm deep hole and collect the sample

relatively simple (e.g. ‘reverse

by taking a channel-cut along the entire
circulation drilling was used to obtain length of the hole, 3) collect 600g of the
1 m samples from which 3 kg was minus 2mm fraction of soil from each
pulverised to produce a 30 g charge for
sample point, 4) use the hand-held XRF to
fire assay’). In other cases, more
explanation may be required, such as
determine and record arsenic, copper,
nickel, tungsten, iron and manganese
where there is coarse gold that has concentrations 5) gold to be determined
inherent sampling problems. Unusual at the SEMS field compound using the
commodities or mineralisation types PortablePPB technique
(e.g. submarine nodules) may warrant • Duplicate sample is to be collected every
disclosure of detailed information. 20th sample and given the next sample
number
• No Standards will be used to avoid low-
level gold contamination. Gold
anomalous sample sites (+50ppb Au)
shall be resampled and assayed using the
fire assay technique
• Samples are to be stored and processed

at a secure SEMS field compound

• Assay results to be reported to
MetalsGrove within 48 hours so that infill
samplingcan beplanned and scheduled.
Drilling Drill type (e.g. core, reverse • No drilling has been undertaken.
Techniques
circulation, open-hole hammer, rotary
air blast, auger, Bangka, sonic, etc.)
and details (e.g. core diameter, triple

or standard tube, depth of diamond tails,
face-sampling bit or other type, whether core
is oriented and if so, by what method, etc).

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Drill Sample Method of recording and assessing
No drilling has been undertaken.
Recovery core and chip sample recoveries and
results assessed.
Measures taken to maximise sample
recovery and ensure representative
nature of the samples.
Whether a relationship exists between

sample recovery and grade, and
whether sample bias may have
occurred due to preferential loss/gain
of fine/coarse material.
Logging
Whether core and chip samples

No drilling has been undertaken.
have been geologically and
geotechnically logged to a level of

detail to support appropriate Mineral

Resource estimation, mining studies
and metallurgical studies.

Whether logging is qualitative or
quantitative in nature. Core (or
costean, channel, etc.) photography.

The total length and percentage of
the relevant intersections logged.
Sub-sampling
If core, whether cut or sawn and

No drilling has been undertaken.
Techniques whether quarter, half or all core
and Sample taken.

Preparation

If non-core, whether riffled, tube
sampled, rotary split, etc. and
whether sampled wet or dry.

For all sample types, the nature,
quality and appropriateness of the
sample preparation technique.

Quality control procedures adopted
for all sub-sampling stages to
maximise representivity of samples.

Measures taken to ensure that the
sampling is representative of the in-
situ material collected, including, for
instance, results for field

duplicate/second-half sampling.

Whether sample sizes are appropriate
to the grain size of the material being
sampled.

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Quality of
The nature, quality and

Samples are to be analysed using the
Assay Data and
appropriateness of the assaying and
patented detectORE™ process developed
Laboratory laboratory procedures used and by Portable PPB Pty Ltd in Australia.
Tests whether the technique is considered
The process involves a partial extraction
partial or total. using the safe, non-dangerous GLIX-20®

For geophysical tools,
reagent that is akin to traditional BLEG
spectrometers, handheld XRF (which uses a cyanide leach).
instruments, etc., the parameters
The 400g samples are added to the
used in determining the analysis,
reagent and tumbled for 12 hours, into
including instrument make and
model, reading times, calibration
which the detectORE collector device
had been inserted.
factors applied, and
After the bottle roll process has
their derivation, etc.
completed, the collector device is

Nature of quality control procedures

removed, washed, and dried prior to
adopted (e.g. standards, blanks, reading on a Vanta M (VMR) pXRF loaded
duplicates, external laboratory with Evident/Olympus’s detectORE™
checks) and whether acceptable mode.
levels of accuracy (i.e. lack of bias)
The entire process is managed using
and precision have been established.
Portable PPB’s Portable Lab Information

Management System (pLIMSTM), which
records all aspects of the sample
throughput, including QAQC and control
of the pXRF via the Application
Programming Interface to
Olympus/Evident’s co-developed
detectORE™ mode.

Certified Collector Devices (CCDs)
supplied by PortablePPB with known
quantities of gold ranging from 0 -1000

ppb are used to check that the pXRF was
functioning correctly and that the
instrument settings were as intended.
One CCD serves as a blank.


The pLIMS software confirmed the
instrument settings are correct and the
VMR is operating as expected, controlled

by the pLIMS API and Evident’s
detectORE™ firmware.
Verification of The verification of significant
The detectORE™ process is checked in
Sampling and intersections by either independent accordance with PortablePPB’s
Assaying or alternative company personnel. recommended processes and
The use of twinned holes. procedures. These include the insertion
Documentation of primary data, data of 250g reference materials (RMs).
entry procedures, data verification,
The RMs comprise mixtures of
data storage (physical and electronic) commercial Certified Reference
protocols.
Materials (CRMs) and barren regolith
til Th RM f k bt
Discuss any adjustments to assay
data.
maera. e s are o nown, u
uncertified gold concentration and are
used to check that the leach and collect
process has worked as intended during
the 12-hour bottle roll.

RMs were inserted at a rate of 1 every 44
samples throughout the sample
batches. The RMs were checked against
Portable PPB’s cloud-based database
and passed within the accepted
tolerance ranges for the technique,
currently 20% (3 sigma).

The pXRF instrument settings are
checked usinga range of Certified

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Collector Devices, which are used to
confirm the pXRF is operating as
expected. The pXRF spectral files are
reviewed by Portable PPB’s cloud and
SME procedures.
Location of
Data Points
Accuracy and quality of surveys used
to locate drillholes (collar and down-

A handheld GPS is used to locate the soil
data positions, with a +/-5m vertical and
hole surveys), trenches, mine horizontal accuracy
workings and other locations used in
Sample locations and sample
Mineral Resource estimation.
descriptions are digitally recorded in the
Specification of the grid system used. field using grid system: UTM WGS84 zone
Quality and adequacy of topographic 29N
control.
GPS measurements of sample positions
are sufficiently accurate for first pass.
Data Spacing Data spacing for reporting of
The 1km by 1km offset soil sample
and Exploration Results. pattern over the permit area is considered
Distribution
Whether the data spacing and

to be an effective technique for identifying
distribution is sufficient to establish and delimiting gold anomalous areas,
the degree of geological and grade which will then be followed up with higher

continuity appropriate for the Mineral
density sampling.
Resource and Ore Reserve estimation
procedure(s) and classifications
applied.
Whether sample compositing has
been applied.
Orientation Whether the orientation of sampling
The sample location configuration has
of data in achieves unbiased sampling of been deliberately planned to avoid
relation to possible structures and the extent to directional bias.
geological al which this is known, considering the
structure
deposit type.
If the relationship between the drilling
orientation and the orientation of key
mineralised structures is considered to
have introduced a sampling bias, this
should be assessed and reported if
material.
Sample
security
The measures taken to ensure sample
security.

Samples are collected in calico bags,
assigned individual sample numbers and
transported to the secure SEMS site
facility for gold determination by
PortablePPB.
Audits or The results of any audits or reviews of
The sampling and assay technique
Reviews sampling techniques and data. adopted by MetalsGrove has been
effectively used in the Vavoua-Kounahiri

district, and more widely in Cote d’Ivoire,
to define drill targets and is considered an
effective, initial approach for defining gold

anomalous structural trends.

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Section 2 - Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section.)

Criteria JORC Code Explanation Commentary
Mineral
Type, reference name/number, location

Following the acquisition of the three
Tenement and and ownership, including agreements or Central West Gold joint venture (JV)
Land Tenure material issues with third parties such as permits in Côte d’Ivoire, MetalsGrove
Status joint ventures, partnerships, overriding entered into another JV with TSX-V
royalties, native title interests, historical listing company Stellar AfricaGold Inc.
sites, wilderness or national park and (Stellar) for its PR-0750 Zuénoula
environmental settings. permit. PR-0750 was granted on 17 April

The security of the tenure held at the time
2024 for an initial four years period,
of reporting, along with any known renewable for two additional 3 years
impediments to obtaining a licence to period.
operate in the area.
The Zuenoula permit is located between
existing MetalsGrove controlled
Kounahiri West and Vavoua permits
along the same Birimian greenstone
belt. The two groups of joint venture
permits (4) occupy a combined area of
1,315 km², strategically situated along
the Abujar–Napie gold trend within the
Oumé–Fetekro Birimian greenstone belt
in central Côte d’Ivoire, approximately
100 km north of the Abujar gold mine
and 160 km south of the Napie gold
project.
Exploration
Acknowledgement and appraisal of

MetalsGrove is not aware of any
Done by Other exploration by other parties. previous systematic exploration for gold

Parties.

being conducted with the Zuénoula
permit PR-0750.
Geology
Deposit type, geological setting and style

The Zuénoula permit (Stellar JV),
of mineralisation. together with the Vavoua, Vavoua West,
and Kounahiri West permits acquired
through the Central West Gold JV, are
located in the central west of Côte
d'Ivoire at the south edge of the West
Africa craton. This region is the world’s

largest Proterozoic gold-producing
region, and Cote d’Ivoire contains 35%
of the region’s Birimian Group rocks,
which host a number of multi-million-
ounce gold deposits.

The Central West Gold JV permits and
Stellar JV permit, together cover a
combined area of 1,315 km², and are
strategically situated along the Abujar–
Napie gold trend within the Oumé–
Fetekro Birimian greenstone belt, and
are located approximately 100 km north
of the Abujar gold mine and 160 km

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south of the Napie gold project.
A summary of all information material No drilling results are included in this
to the understanding of the exploration release.
results, including a tabulation of the
following information for all Material
drill holes:
easting and northing of the drillhole collar
elevation or RL (Reduced Level –
elevation above sea level in metres) of
the drillhole collar dip and azimuth of the
hole
down hole length and interception depth
hole length.

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south of the Napie gold project.
Drillhole
A summary of all information material

No drilling results are included in this
Information
to the understanding of the exploration

release.
results, including a tabulation of the
following information for all Material
drill holes:

easting and northing of the drillhole collar
elevation or RL (Reduced Level –
elevation above sea level in metres) of
the drillhole collar dip and azimuth of the
hole

down hole length and interception depth
hole length.
Data
In reporting Exploration Results,

No data aggregation methods were
Aggregation weighting averaging techniques, applied to the soil sampling data.
Methods maximum and/or minimum grade
truncations (e.g. cutting of high grades)
and cut-off grades are usually Material
and should be stated.

Where aggregate intercepts incorporate

short lengths of high-grade results and
longer lengths of low-grade results, the
procedure used for such aggregation
should be stated, and some typical
examples of such aggregations should be
shown in detail.

The assumption used for any reporting
of metal equivalent values should be
clearly stated.
Relationship

If the geometry of mineralisation with

Not applicable.
Between respect to the drillhole angle is known, its
Mineralisation
nature should be reported.
Widths and
Intercept
Lengths

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Diagrams
Appropriate maps and sections (with

See maps in the body of the report.
scales) and tabulations of intercepts
should be included for any significant
discovery being reported. These should
include, but not be limited to, a plan view
of drillhole collar locations and
appropriate sectional views.
Balanced
Where comprehensive reporting of all

Only the exploration strategy and
Reporting
Exploration Results is not practicable,

planned fieldwork are reported in this
representative reporting of both low and announcement. No assay data
high grades and/or widths should be collected by MetalsGrove or the
practiced, avoiding misleading reporting interpretation of that data are included
of Exploration Results. in this announcement.
Other Other exploration data, if meaningful and
Any meaningful data and relevant
Substantive
material, should be reported, including

information have been included in the
Exploration (but not limited to): geological body of this release.
Data observations; geophysical survey results;
geochemical survey results; bulk
samples – size and method of treatment;
metallurgical test results; bulk density,
groundwater, geotechnical and rock
characteristics; potential deleterious or
contaminating substances.
Further Work
The nature and scale of planned further

The initiation of the initial soil sampling
work (e.g. tests for lateral extensions, or program is a high priority for
depth extensions, or large-scale step-out MetalsGrove, and SEMS has given a
drilling). commitment to being able to

Diagrams clearly highlighting the areas of
commence sampling in December 2025
possible extensions, including the main
Field programs will also be sequentially
geological interpretations and future initiated on the adjoining Central West
drilling areas, provided this information is Gold JV permits once tenure is granted
not commercially sensitive. by the Government of Cote d'Ivoire

The images included show the location

of the current proposed field programs.

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