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Stellar Africagold - 10,000M Auger Drilling Planned to Test 7 Potential Drill Target Areas at the Zuénoula Permit, Côte D’Ivoire

Drill Results Corporate Updates

STELLAR AFRICAGOLD - 10,000M AUGER DRILLING PLANNED TO TEST

7 POTENTIAL DRILL TARGET AREAS AT THE ZUÉNOULA PERMIT, CÔTE D’IVOIRE

Vancouver, BC – June 23, 2026 Stellar AfricaGold Inc. (“Stellar” or the “Company”) (TSXV: SPX, TGAT:

6YP and FSX: 6YP) is pleased to announce a 10,000 meter auger drill program at the Stellar-MetalsGrove

Joint Venture Zuénoula Gold Project, Cote d’Ivoire.

Highlights

• Joint venture operator MetalsGrove Mining Ltd. (“MetalsGrove”) has consolidated the

exploration targets at the Zuénoula Permit into four principal prospects - Fifty-Five, Central, South East

and South West Prospects following ongoing technical review and field verification of multiple gold

anomalies.

• A two -rig, two -stage 10,000-meter auger drilling program is planned to test gold

anomalous clusters at the Fifty-Five, Central and South East Prospects, with mobilisation and

commencement targeted for end June.

• Recent soil geochemistry interpretation has defined a total of 7 Potential Drill Targets

within the consolidated 4 prospects on the permit. These targets will be progressively refined

through ongoing infill soil sampling and auger drilling before drilled by Aircore/Reverse Circulation

(AC/RC) or diamond drilling (DD) from late 2026.

• Infill soil sampling programs continue across all four prospects at varying grid spacings,

with results continuing to enhance target definition and prioritisation for drill testing.

About the Stellar-MetalsGrove Joint Venture Zuénoula Gold Project, Cote d’Ivoire.

The Stellar-MetalsGrove Zuénoula Gold Project is a joint venture exploration project between Stellar’s

Ivorian subsidiary Aucrest SARL (“Aucrest”) and MetalsGrove Mining Ltd. ’s Ivorian subsidiary

MetalsGrove CDI Pty Ltd (MetalsGrove) to advance Stellar’s 395.78 square kilometer early -stage

exploration permit called Zuénoula in Côte d’Ivoire (see Figure 2 below). Pursuant to the joint venture

agreement MetalsGrove, the project operator, may earn up to a 50% interest in the Zuénoula Gold

Project by incurring U S$3,000,000 in exploration expenditures and up to an 80% interest in the

Zuénoula Gold Project by incurring a total of US$6,000,000 in exploration expenditures. ( For further

details of the Stellar-MetalsGrove Joint Venture Agreement see Stellar news release December 9, 2025.)

Stellar Management Commentary

Stellar President and CEO J. François Lalonde commented:

"Following extensive soil sampling and target refinement, the joint venture exploration team has

consolidated the Zuénoula Permit into four principal prospect areas and are preparing to commence a

10,000-meter auger drilling program across the 7 defined potential drill targets. The program is

designed to test the bedrock potential beneath surface gold anomalies and represents a critical step

towards AC, RC and diamond drilling later this year.

The definition of seven potential drill targets marks an important milestone in the systematic exploration

approach and highlights the growing scale and prospectivity of the Zuénoula Gold Project . Several

targets exhibit kilometre-scale strike lengths and remain open to further refinement through ongoing

infill soil sampling. With more than 1,700 soil samples currently awaiting assay results, there is

significant potential to further expand these targets and discover more targets across the permit.

We look forward to updating shareholders as auger drilling commences and additional soil sampling

assay results continue to strengthen the discovery potential at Zuénoula."

MULTIPLE NORTHEAST-TRENDING GOLD ANOMALOUS TRENDS IDENTIFIED

Stellar is pleased to announce the planned commencement of a two-rig, two-stage, 10,000 meter auger

drilling program at its Zuénoula Permit in Côte d’Ivoire to test the area’s seven potential drill targets

defined from multiple gold anomalies identified through the Company’s systematic soil geochemistry

programs.

The joint venture operator has consolidated the exploration targets at the Zuénoula Permit into four

principal prospects following ongoing technical review and field verification of multiple gold anomalies

identified from completed various surface soil sampling programs to date (Figure 1). The Fifty -Five

Prospect now incorporates the original Fi fty-Five Prospect and its northeastern extension, while the

South East Prospect combines the former Konezra Prospect with the South East Prospect. The Central

Prospect and South West Prospect remain unchanged from previous reporting. This refinement

provides a clearer framework for exploration targeting and reflects the Company's growing

understanding of the distribution and continuity of gold anomalism across the project area.

Figure 1. Zuénoula Soil Sampling Progress Across the Four Consolidated Exploration Prospects

A two -rig, two -stage, 10,000 m auger drilling program within the Fifty -Five, Central and South East

Prospects has been designed (Figure 2) to test the most significant gold anomalous clusters identified.

Stage 1 will comprise approximately 5,000m of drilling on a nominal 400m × 50m drill pattern, followed

by Stage 2 infill drilling on a 250m × 25m spacing, subject to the results obtained from the initial phase.

Auger drilling is planned to an average depth of approximately five metres to test the mineralisation

potential from the upper saprolite horizon. Results from ongoing soil infill programs across all three

auger target areas will be incorporated into final drill planning to further refine and optimise drill line

locations prior to commencement. The two-rig mobilisation and commencement date is scheduled for

end June 2026.

Interpretation of the current soil geochemistry dataset (Figure 1 & Table 1) has increased the definition

of potential drill targets to 7 (Figure 2), each exhibiting kilometre-scale prospective strike length (Figure

3 and 4). These targets will continue to be refined through ongoing infill soil sampling and auger drilling

programs, with the objective of defining coherent bedrock-related mineralisation suitable for follow-up

AC/RC or DD from late 2026.

Infill soil sampling continues at varying grid spacings across all four prospects at the Zuénoula Permit.

To date, assay results have been received for 1,617 soil samples , while a further 1,755 samples are

awaiting laboratory analysis. An additional 306 samples are scheduled for collection.

Figure 2. Planned Auger Drilling Areas and 7 Potential Drill Targets Defined at Zuénoula Permit

Figure 3. Planned Auger Drilling Areas and Potential Drill Targets Defined

at Fifty-five and Central Prospects

Figure 4. Planned Auger Drilling Area and Potential Drill Targets at South East Prospect

Next Phases of Work

The Company has planned the following next phases of exploration programs to advance the

identification of new potential drill targets and refine existing potential drill targets for drill testing:

➢ Auger drilling:

• Auger drilling across 3 Prospects: 10,000 meters in 2 stages.

• Soil Sampling:

• Fifty-Five Prospect NE: 200m*200m (pending sampling)

• South East Prospect: 200m*200m (pending assay results)

• Fifty-Five Prospect: 2000*50m (pending assay results)

• Central Prospect: 2000*50m (pending assay results)

• Five-Five Prospect East: 200*200m (pending assay results)

• South West Prospect: 400m*400m (pending assay results)

Qualified Person

The technical information contained in this release has been reviewed and approved by Mr. Robert

Perring, a current member of the Australian Institute of Geoscientists (MAIG) and Exploration Manager

of MetalsGrove Mining Limited. Mr. Perring is a Qualified Person under National Instrument 43-101.

About Stellar Africagold Inc.

Stellar AfricaGold Inc. is a Canadian precious metal exploration company focused on precious metals

in North and West Africa, with active programs in Morocco and Côte d’Ivoire. Stellar’s principal

exploration projects are its advancing gold discovery at the Tichka Est Gold Project in Morocco, and its

early-stage exploration Zuénoula Gold Project in Côte d’Ivoire which is operated in Joint Venture with

MetalsGrove Mining Ltd subsidiary, MetalsGrove CDI Pty Ltd.

The Company is listed on the TSX Venture Exchange symbol TSX.V: SPX, the Tradegate Exchange TGAT:

6YP and the Frankfurt Stock Exchange FSX: 6YP.

The Company maintains its head office in Vancouver, BC and has a country office in Marrakech,

Morocco.

QA/QC

JORC Code, 2012 Edition – Table 1

Section 1- Sampling T echniques and Data

Criteria JORC Code Explanation Commentary

Sampling

Techniques

• Nature and quality of sampling (e.g.

cut channels, random chips, or

specific specialized industry standard

measurement tools appropriate to the

minerals under investigation, such as

down hole gamma sondes, or

handheld XRF instruments, etc.) These

examples should not be taken as

limiting the broad meaning of

sampling.

• Include reference to measures taken

to ensure sample representivity and

the appropriate calibration of any

measurement tools or systems used.

• Aspects of the determination of

mineralisation that are Material to the

Public Report.

In cases where ‘industry standard’ work

has been done, this would be

relatively simple (e.g. ‘reverse

circulation drilling was used to obtain

1 m samples from which 3 kg was

pulverised to produce a 30 g charge for

fire assay’). In other cases, more

explanation may be required, such as

where there is coarse gold that has

inherent sampling problems. Unusual

commodities or mineralisation types

(e.g. submarine nodules) may warrant

disclosure of detailed information.

No drilling has been undertaken on Zuénoula

PR-750

All soil samples collected on Zuénoula PR -

750 have been analysed for gold by fire assay

at Bureau Veritas laboratory in Abidjan, Côte

d’Ivoire.

SOIL SAMPLING STAGES

• Stage 1: Initial, permit -wide, broad -

spaced soil sampling on 1000m x 1000m

grid

• Stage 2: Gold anomalous clusters and

trends defined by multiple anomalous soil

samples (+20ppb Au) are then infilled with

soil samples collected on 400m x 400m

grid

• Stage 3: Coherent gold soil anomalies are

then infilled with soil samples collected on

200m x 200m grid

• Stage 4: Higher density 200m x 50m soil

sampling to sharpen definition of gold soil

anomalies

• Stage 5: Augering and trenching of

coherent gold soil anomalies

• Stage 6: Drill testing of gold soil and auger

anomalies.

SOIL SAMPLING PROCEDURES

• MGA has contracted the experienced

consulting group SEMS Exploration

Services (SEMS) to conduct all soil

sampling

• Up to four sampling crews may be active at

any one time

• The MGA Exploration Manager was onsite

at the start of the field program to instruct

the sampling crew on the Standard

Sampling Procedure required by MGA

• MGA provided SEMS Exploration Services

with an Excel table listing the designated

sample point locations using WGS-84 UTM

zone 29N coordinates

• Each soil sample is collected from within

20 metres of the designated sample point,

with the actual sample point then

recorded

• At each sample point: 1) the organic rich

soil is brushed away, 2) a 40cm deep hole

dug and the sample collected by taking a

channel-cut along the bottom 20cm of the

hole, 3) 1000g of the minus 2mm sieved

fraction of each sample is collected from

the sample point, 4) gold is determined by

fire assay (LDL 2ppb)

• Duplicate samples are collected every

20th sample, certified reference material

(CRM) inserted every 20th sample, and

blanks inserted every 20th sample.

• Samples are stored at the secure SEMS

field compound in Zuénoula prior to

transport to Bureau Veritas in Abidjan of

gold analysis.

Drilling

Techniques

• Drill type (e.g. core, reverse

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).

• No drilling has been undertaken.

Drill Sample

Recovery

• Method of recording and assessing

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.

• No drilling has been undertaken.

Logging • Whether core and chip samples

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.

• No drilling has been undertaken

• Soil samples are comprehensively logged

for a range of parameters including colour,

soil horizon, sample weight, slope,

dominant grain size (clay, silt, sand),

general topography, residual or

transported, proximity to artisanal

workings, other ground disturbances such

as field plowing, and general land use

(grassland, plantation, crop, etc.).

Sub-sampling

Techniques

and Sample

Preparation

• If core, whether cut or sawn and

whether quarter, half or all core

taken.

• 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.

• No drilling has been undertaken

• No sub -sampling of the 1000g soil

samples is undertaken prior to the sample

arriving at Bureau Veritas laboratory

• At Bureau Veritas, the entire 1000g sample

is pulped prior to the laboratory taking a

50g split for lead collection fire assay

determination of gold concentration.

• 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.

Quality of

Assay Data and

Laboratory

Tests

• The nature, quality and

appropriateness of the assaying and

laboratory procedures used and

whether the technique is considered

partial or total.

• For geophysical tools,

spectrometers, handheld XRF

instruments, etc., the parameters

used in determining the analysis,

including instrument make and

model, reading times, calibration

factors applied, and

their derivation, etc.

• Nature of quality control procedures

adopted (e.g. standards, blanks,

duplicates, external laboratory

checks) and whether acceptable

levels of accuracy (i.e. lack of bias)

and precision have been established.

• Bureau Veritas is an internationally

accredited assay laboratory located in

Abidjan, Cote d’Ivoire.

• Assay results for all samples presented in

the announcement were determined by fire

assay (Lab Code: FE450, LDL 2ppb), which

is a total gold extraction method for

analysis.

• The lower detection limit (LDL) of 2ppb is

considered appropriate for greenfields,

early stage, exploration soil sampling

• Fire assay gold is considered one of the

most reliable assay techniques for gold

analyses.

Verification of

Sampling and

Assaying

• The verification of significant

intersections by either independent

or alternative company personnel.

• The use of twinned holes.

• Documentation of primary data, data

entry procedures, data verification,

data storage (physical and electronic)

protocols.

• Discuss any adjustments to assay

data.

FIRE ASSAY ANALYSIS

• All samples have been analysed for gold

by fire assay at Bureau Veritas laboratory

in Abidjan, Cote d’Ivoire

• The 1000g -2mm sample collected in the

field is analysed for gold by fire assay (Lab

Code: FE450, LDL 2ppb)

• At the laboratory, the 1000g -2mm

sample is dried and pulverised to 85%

passing 75 microns.

• This sample pulp is then mixed with a

combination of chemical reagents, which

when heated to high temperatures

results in the formation of a lead button

and slag. The lead button that contains

the precious metals (including gold) is

cupelled at high temperature. The lead is

adsorbed by the cupel leaving behind a

bead that contains the precious metals.

• The bead is acid digested and analysed

by AAS, with a lower detection limit of

2ppb Au