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Montage GOLD Delineates Higher Grade Satellite Deposits at Its Koné Project Where Construction Continues to Rapidly Advance

Mine Development & Operations

Press

Release

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MONTAGE GOLD DELINEATES HIGHER GRADE SATELLITE DEPOSITS

AT ITS KONÉ PROJECT WHERE CONSTRUCTION CONTINUES TO RAPIDLY ADVANCE

HIGHLIGHTS:

› Over 81,000 meters were drilled in 2024, focused on identifying higher grade satellite targets, with the goal of

supplementing production from the commencement of operations

› Results provide significant confidence in achieving the previously published short-term objective of discovering over

1Moz of M&I resources for satellites at a 50% higher grade compared to the Koné deposit

− Mineralisation was confirmed at all 18 targets drilled in 2024 out of the 52 exploration targets identified

− Starter maiden resources delineated for 7 new higher grade satellites, with grades ranging between 0.9 and 1.6 g/t Au,

or between approximately 60% to 180% higher than the Koné deposit

− Efforts on the satellite deposits have added 160koz at 1.16 g/t Au and 270koz at 1.0 g/t Au of Indicated and Inferred

Resources, respectively, with deposits remaining open as the focus was to delineate only a small portion of the

orebodies to assess the grade profiles in order to prioritize 2025 drill efforts

− 6 other targets were progressed to pre-resource definition stage, which are currently being pursued given the high

grade intercepts received (11.0m at 4.4 g/t Au and 15.0m at 2.17 g/t Au at Soman 1 & 2; 7.0m at 9.20 g/t Au at ANVIII)

› Koné deposit Indicated resource increased by 150koz to 4.49Moz at 0.57 g/t Au and Inferred Resource increased by

110koz to 0.51Moz at 0.43 g/t Au

› Koné project overall Indicated Resource grew by 340koz to 5.21Moz at 0.62 g/t Au and Inferred Resource grew by

380koz to 780koz at 0.54 g/t Au following the first drill campaign under the leadership of the new management team

› 90,000-meter drill programme was launched in early 2025 with the goal of continuing to delineate and test higher-

grade satellites

Abidjan, Côte d’Ivoire — April 8, 2025 — Montage Gold Corp. (“Montage” or the “Company”) (TSXV: MAU, OTCQX: MAUTF) is

pleased to announce that the results of its 2024 Koné project exploration programme , in C ôte d’Ivoire, provide significant

confidence in achieving its previously published short-term exploration target of discovering more than 1Moz of Measured and

Indicated Resources, at a grade 50% higher than the Koné deposit, with the goal of further improving the production profile from

the commencement of production in Q2-2027.

A total of 81,815 meters were drilled in 2024, amounting to US$13 million, under the leadership of the new management team,

with the goal of delineating resources at selected advanced targets, in addition to continuing to drill test and progress oth er

targets. Given the extensive 2,138km2 land package encompassing over 5 2 identified targets, the approach undertaken is to

systematically drill test best selected targets to confirm their potential and define starter resources to validate their high-grade

content before undertaking larger step-out drilling campaigns. Consequently, 18 targets were drill tested last year , which

successfully delineated starter resources for 7 higher grade satellite deposits, while another 6 targets have advanced to the pre-

resource definition stage and are currently being followed up.

As a result, the Koné project now hosts 8 satellite deposits, inclusive of the Gbongogo Main deposit. Efforts on the new satellite

deposits have added 160koz at 1.16 g/t Au and 270koz at 1.0 g/t Au of Indicated and Inferred Resources, respectively, at grades

ranging between 0.9 and 1.6 g/t Au , or between approximately 60% and 180% higher than the Koné deposit , as summarised in

Tables 1 and 2 below. All deposits delineated remain open as the focus was to delineate only a small portion of the orebodies to

assess the grade profiles in order to prioritize 2025 drill efforts.

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In addition, exploration efforts at the Koné deposit resulted in adding near-surface mineralization and confirming mineralization

at depth. As shown in Table 1 below, the Koné deposit Indicated Resource increased by 150koz to 4.49Moz at 0.57 g/t Au while

the Inferred Resource increas ed by 110koz to 0.5 1Moz at 0.43 g/t Au . Coupled with the resource additions for the satellite

deposit, the Koné project’s Indicated Resources grew by 340koz to 5.21Moz at 0.62 g/t Au and Inferred Resources grew by 380koz

to 780koz at 0.54 g/t Au.

Table 1: Koné project resource update variance

PREVIOUS RESOURCE ESTIMATE1 UPDATED RESOURCE ESTIMATE2

Resources shown

on a 100% basis

Tonnage Grade Content Tonnage Grade Content Variance

(Mt) (Au g/t) (Au koz) (Mt) (Au g/t) (Au koz) (Au koz)

Koné deposit

Indicated Resources 229 0.59 4,340 245 0.57 4,490 +150

Inferred Resources 25 0.5 400 37 0.43 510 +110

Satellite deposits (including Gbongogo)

Indicated Resources 11 1.48 520 16 1.38 720 +200

Inferred Resources - - - 8.4 1.00 270 +270

Total

Indicated Resources 240 0.63 4,870 261 0.62 5,210 +340

Inferred Resources 25 0.5 400 45 0.54 780 +380

1) Updated Feasibility Study available on Montage’s website and on SEDAR+. See “Technical Disclosure” below. 2) Updated Mineral Resource Estimates (the “2025 MRE”) are reported

in accordance with National Instrument 43 -101 Standards of Disclosure for Mineral Projects (“NI 43-101”) with an effective date of January 31, 2025 for satellite deposits and the

Gbongogo deposit, and February 20, 2025 for the Koné deposit. Mineral Resource Estimates follow the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) Definitions

Standards for Mineral Resources and have been completed in accordance NI 43-101. This 2025 MRE was prepared by Mr. Jonathon Abbott of Matrix Resource Consultants of Perth,

Australia who is a Qualified Person as defined by NI 43 -101. Rounding errors are apparent. The 2025 MRE are reported on a 100% basis and are constrained within optimal pit shells

generated at a gold price of US$2,000/ounce. The estimates at are reported at gold cut-off grades of 0.20 g/t (Kone), 0.50g/t (Gbongogo, Koban North, Sena, Gbongogo South, Diouma

North and Lokolo Main) and 0.60g/t (Yere North and ANV) Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. No Measured Resources have

been estimated. See “Technical Disclosure” below for details.

A subsequent 90,000-meter drill programme , for US$14 million , was launched in early 2025 with the goal of continuing to

delineate and test higher-grade satellites. As part of the programme, significant infill and step out drilling has been planned on

the 7 maiden higher-grade satellite deposits delineated in 2024 . In addition, infill drilling is planned on the newly identified

advanced targets that have shown significant potential through reconnaissance drilling during 2024.

Martino De Ciccio, CEO of Montage, commented: “We are very pleased with the progress being made to unlock value at our

Koné project in Côte d’Ivoire by aggressively exploring while construction continues to rapidly advance.

Today’s published updated resource estimate demonstrates the project's large scale and confirms our belief in the potential f or

numerous high-grade satellite deposits, with eight already identified. Moreover, it provides significant confidence in achieving

our previously published short-term objective of discovering at least 1 million ounces of Measured and Indicated Resources for

satellite deposits at a 50% higher grade compared to the Koné deposit, to be achieved prior to production commencing in Q2-

2027. This would represent significant returns on our exploration investment and aligns with our strategic objective of boosting

production from the onset while maintaining an annual production of at least 300koz for more than 10 years.

I would like to thank our exploration team for their strong efforts and congratulate them on the rapid success achieved, especially

considering most of the drilling took place in the latter part of the year, following the end of the rainy season and the ra mp-up

of the exploration team, which now totals more than 150 people.

The success achieved thus far positions us well to continue unlocking exploration value and further build on the momentum

generated to advance our strategy of creating a premier African gold producer and delivering value for all our stakeholders.”

Silvia Bottero, EVP Exploration of Montage, stated: “We are very pleased with the rapid exploration progress achieved, as it

significantly boosts our confidence in reaching our ambitious target of discovering at least one million ounces of higher -grade

satellite resources before production commences in Q2-2027.

With our extensive land package encompassing over 50 identified targets, our approach is to systematically drill test best selected

targets to define starter resources and validate their higher-grade content before undertaking larger step-out drilling campaigns.

Consequently, last year we drilled over 18 targets, successfully delineating resources for seven deposits, while another six targets

have advanced to the pre-resource definition stage and are currently being followed up.

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Building upon this approach to enhance our understanding of the project's potential, we launched a larger 90,000-meter drilling

program earlier this year. Half of this program is dedicated to infill and extension drilling of recent discoveries, while th e other

half will focus on drill testing and generating new targets. As a result, t his year we anticipate growing the newly de lineated

deposits while also delineating initial maiden resources for additional targets, enabling us to prioritize infill and step -out drilling

for 2026 as we approach production.

Given our recent successes and our rapidly evolving understanding of the geological potential, we are highly enthusiastic abo ut

continuing our exploration efforts to unlock further value.”

ABOUT THE EXPLORATION PROGRAMME

Exploration Outlook and Objectives

The 2024 exploration programme results validate management’s conviction that significant potential exists to add further higher-

grade satellites, with the aim of enhancing the profile of the Koné project by slotting these discoveries early in the mine plan. In

line with its commitment to accountability and transparency, on October 7, 2024, Montage published an aggressive target of

discovering of at least 1 million ounces of Measured and Indicated Resources at a grade of over 1 g/t Au, which would be 50%

higher compared to the current Koné deposit grade1, to be achieved before the commencement of production.

Achieving the set exploration target would represent a significant return on the exploration investment and aligns with the

Company’s strategic objective of boosting production from the commencement of production , while maintaining an annual

production of at least 300koz for more than 10 years. As shown in Figure 1 below, the objective is to replicate the explorati on

success that resulted in the addition of the Gbongogo Main higher grade satellite deposit which is to be blended with the Koné

deposit ore feed over the first three years of oper ations, resulting in an average gold production of 349,000 ounces per year

during this period given that the Gbongogo Main deposit reserve grade is approximately 95% higher than that of the Koné deposit

ore feed over the life of mine1.

Figure 1: Current production profile1

1Source: For further information on the discovery target please refer to the Company’s news release dated October 7, 2024, and for inf ormation regarding the Koné deposit please

refer to the Updated Feasibility Study available on Montage’s website and on SEDAR+. See “Technical Disclosure”.

Overview of the exploration potential and programme

The Koné project is endowed with significant exploration potential across a 1,679.3km2 existing land package where the Company

has, to date, identified a total of 52 exploration targets across 7 mineralised trends , as shown in Figure 2 below . The Company

has a further 458.5km 2 of additional adjacent exploration properties currently under permit application, which would increase

its total land package to 2,138km2.

In total, 26 exploration targets are located within the permitted mining area within 3 major trends (Gbongogo -Korotou Trend,

Lokolo Trend and Bafretou -Niondje Trend) which are located near the planned haul road, and host potential for higher grade

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discoveries. On the exploration permits, a further 26 targets have been identified across 4 major trends (Gbongogo -Korotou

Trend, Sissédougou Trend, Yere Trend and TZ4 Trend), which also hosts the potential for higher grade mineralisation. Exploration

efforts are focused on both the permitted mining area, due to its potential immediate benefits, as well as on the exploration

permit to the north given the lead time required from discovery to permitting. Management anticipates that a trucking distance

of 75km would result in an increase of approximately 0.2 g/t Au on the cut-off grade, thereby supporting its strategy of targeting

over 1 g/t Au discoveries that would therefore have the potential to displace 0.7 g/t Au material sourced from the Koné deposit.

Following the delineation of a maiden resource on the Sissédougou exploration permit (PR842) , Montage has launched the

environmental studies in support of an Environmental, Social Impact Assessment on the Sissédougou exploration permit.

Figure 2: Koné project map illustrating the 7 mineralised trends

As detailed in Table 2 below, a total of 81,815 meters were drilled in 2024, amounting to US$13 million, completed across 1,995

holes, which comprised 80 Diamond Drilling (“DD”) holes for 12,682 meters, 566 Reverse Circulation (“RC”) holes for 50,059

meters, 8 RC -DD for 1,23 3 meters, 342 Aircore holes for 11,872 meters, and 999 Auger holes for 5,969 meters. The first drill

campaign of 2024, totalling 30,170 meters with results previously announced on October 7, 2024, was supplemented with a

further 51,645 meters drilled from mid-September until the end of the year.

Priority was attributed to targets along the Gbongogo -Korotou Trend, given their proximity to the already identified Gbongogo

Main deposit and its infrastructure, along with targets along the Lokolo trend and within the Sissédougou Trend (PR842).

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Table 2: 2024 drill program breakdown by trend and targets

Trend Name Target Name Drilling

Koné Koné deposit; Petit Yao 2,921 m

Gbongogo-Korotou

Gbongogo Main deposit; Gbongogo South; Diouma North; Koban North; Sena;

Koban Main; Soman 1 &2; Gbongogo West; Dokeka; Marahoué Gap; Kagon NE; Matiko

45,906 m

Lokolo

Lokolo Main; Lokolo Main-North; Lokolo Northwest; Lokolo South; Lokolo East; Lokolo West;

Lokolo W-N; Lokolo South 2; Lokolo North

12,188 m

Bafretou-Niondje Niondje; Bafretou 1; Bafretou 2; Bafretou 3 3,297 m

Sissédougou ANV; ANIII 11,641 m

Yere Yere North , Yere Trend 5,862 m

TZ TZ2; TZ4 -

Total Drilled Meters 81,815 m

The 2024 exploration programme resulted in the delineation of 7 new deposits, which are further detailed in the next section,

and the discovery of 5 new targets (Soman 1, Soman 2 , Gbongogo West, Lokolo Northwest, and ANIII) that were promoted to

pre-resource definition stage and will be followed up in 2025, with best selected drill results shown in Figure 3 below.

Figure 3: Map with notable intercepts for new discoveries made

Notable results are further detailed in Appendix 2.

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Figure 4 below illustrates the significant progress made, since the last exploration update published in October 2024, to advance

targets from early-stage target to resource and pre-resource definition stage. The approach undertaken is to systematically drill

test best selected targets to define starter resources and validate their high -grade content before undertaking larger step -out

drilling campaigns.

Figure 4: Koné project exploration targets evolution

Note: Refer to press release dated October 7, 2024, for further details on target definitions.

A subsequent 90,000-meter drill programme, amounting to US$14 million, was launched in early 2025 with the goal of continuing

to delineate and test higher-grade satellites, detailed as follows:

› 25,000 meters for resource extension, conversion and geotechnical drilling on known deposits

› 20,000 meters of infill drilling on new advanced targets to delineate additional maiden resources

› 45,000 meters of exploration drilling to test and generate new targets

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Updated resource estimate

As shown in Table 3 below, an initial maiden resource for 7 new deposits was delineated with all deposits remaining significantly

open, given that they are data constrained as the focus was to outline only a portion of the orebodies to assess the grade profiles

in order to prioritize 2025 drill efforts. In addition, exploration efforts at the Koné deposit resulted in adding near -surface

mineralization and confirming mineralization at depth. Results for both the satellite deposits identified and the Koné deposit are

further detailed in the following section below.

Table 3: Koné project resource update variance by deposit

PREVIOUS RESOURCE ESTIMATE1

UPDATED RESOURCE ESTIMATE2

Resources shown on a Tonnage Grade Content Tonnage Grade Content Variance

100% basis (Mt) (Au g/t) (Au koz) (Mt) (Au g/t) (Au koz) (Au koz)

Koné deposit

Indicated Resources 229 0.59 4,340 245 0.57 4,490 +150

Inferred Resources 25 0.5 400 37 0.43 510 +110

Satellite deposits:

Gbongogo Main deposit

Indicated Resources 11 1.48 520 12 1.46 560 +40

Inferred Resources - - - 0.07 0.89 2.0 +2

Gbongogo South deposit

Indicated Resources - - - 1.7 1.20 66 +66

Inferred Resources - - - 2.6 1.1 92 +92

Koban North deposit

Indicated Resources - - - - - - -

Inferred Resources - - - 3.9 0.9 113 +113

ANV (Sissédougou) deposit

Indicated Resources - - - 1.6 1.10 57 +57

Inferred Resources - - - 0.88 1.1 31 +31

Yere North deposit

Indicated Resources - - - 0.19 1.05 6.4 +6

Inferred Resources - - - 0.43 1.1 15 +15

Lokolo Main deposit

Indicated Resources - - - 0.30 1.61 16 +16

Inferred Resources - - - 0.1 1 1.1 3.9 +4

Sena deposit

Indicated Resources - - - - - - -

Inferred Resources - - - 0.42 1.0 14 +14

Diouma North deposit

Indicated Resources - - - 0.38 0.95 12 +12

Inferred Resources - - - 0.01 1.0 0.3 +1

Sub-total Satellites deposits

Indicated Resources - - - 4.2 1.16 160 +160

Inferred Resources - - - 8.4 1.0 270 +270

Total

Indicated Resources 240 0.63 4,870 261 0.62 5,210 +340

Inferred Resources 25 0.5 400 45 0.54 780 +380

1)Updated Feasibility Study available on Montage’s website and on SEDAR+. See “Technical Disclosure”. 2 ) Updated Mineral Resource Estimates (the “2025 MRE”) are reported in

accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”) with an effective date of January 31, 2025 for satellite deposits and the Gbongogo

deposit, and February 20, 2025 for the Koné deposit. Mineral Resource Estimates follow the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) Definitions Standards fo r

Mineral Resources in accordance with the NI-43-101. The 2025 MRE was prepared by Mr. Jonathon Abbott of Matrix Resource Consultants of Perth, Australia who is a Qualified Person

as defined by NI 43 -101. Rounding errors are apparent. The 2025 MRE are reported on a 100% basis and are constrained within optimal pit shells generated at a gold price of

US$2,000/ounce. The estimates at are reported at gold cut-off grades of 0.20 g/t (Kone), 0.50g/t (Gbongogo, Koban North, Sena, Gbongogo South, Diouma North and Lokolo Main) and

0.60g/t (Yere North and ANV ) Mineral Resources th at are not Mineral Reserves do not have demonstrated economic viability . No Measured Resources have been estimated. See

“Technical Disclosure” below for additional details.

Preliminary metallurgical test results on the 7 new satellite deposits confirmed that the nature of gold on additional satellites

deposits is no n-refractory with indicative recoveries in excess of 90%. No presence of arsenopyrite, graphite or other

carbonaceous material was observed that could impact recoveries. Further recovery testwork is ongoing.

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Table 4 below presents the 2025 MRE by rock type. Saprolite and transitional Indicated Resources increased by 80Koz over the

previous estimate while saprolite and transitional Inferred Resources increased by 114koz.

Table 4: Koné project 2025 MRE by weathering zone

Resources shown

on a 100% basis

Weathering

Zone

Indicated Inferred

Tonnage

(Mt)

Grade

(Au g/t)

Content

(Au koz)

Tonnage

(Mt)

Grade

(Au g/t)

Content

(Au koz)

Koné deposit Saprolite 14 0.53 240 0.8 0.36 9.3

Transition 10 0.55 180 0.3 0.34 3.3

Fresh 221 0.58 4,120 36 0.43 500

Subtotal 245 0.57 4,490 37 0.43 510

Satellites deposits

(including Gbongogo)

Saprolite 2.3 1.22 90 2.5 0.97 76

Transition 0.9 1.23 35 1.0 0.92 31

Fresh 13 1.42 580 4.8 1.03 160

Subtotal 16 1.38 720 8.4 1.00 270

Total Saprolite 16 0.63 330 3.2 0.83 86

Transition 11 0.61 210 1.3 0.79 34

Fresh 223 0.59 4,700 41 0.50 660

Total 249 0.58 5,210 45 0.54 780

Updated Mineral Resource Estimates (the “2025 MRE”) are reported in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”) with an

effective date of January 31, 2025 for satellite deposits and the Gbongogo deposit, and February 20, 2025 for the Koné deposit. Mineral Resource Estimates follow the Canadian Institute

of Mining, Metallurgy and Petroleum (“CIM”) Definitions Standards for Mineral Resources in accordance with the NI-43-101. The 2025 MRE was prepared by Mr. Jonathon Abbott of

Matrix Resource Consultants of Perth, Australia who is a Qualified Person as defined by NI 43 -101. Rounding errors are apparent. The 2025 MRE ar e reported on a 100% basis and are

constrained within optimal pit shells generated at a gold price of US$2,000/ounce. The estimates at are reported at gold cut -off grades of 0.20 g/t (Kone), 0.50g/t (Gbongogo , Koban

North, Sena, Gbongogo South, Diouma North and Lokolo Main) and 0.60g/t (Yere North and ANV) Mineral Resources that are not Mineral Reserves do not have demonstrated economic

viability. No Measured Resources have been estimated. See “Technical Disclosure” below for additional details.

Given that the Koné deposit is mainly fresh rock, the current design (which is mainly based on the Koné deposit) limits oxide

material to 10% of total feed, and requires 18.8Mt of pre-stripping, stockpiling, and gradual reintroduction of oxide material into

the feed over the first eight years of production . The delineation of satellite deposits has however increased the availability of

oxide and transitional material, and as such the Company continues to engineer and contemplate the potential addition of an

oxide circuit consisting of a sizer and conveyor to directly feed the mill with oxide and transitional material, bypassing the hard

rock comminution and high-pressure grinding rolls . An oxide circuit , for a minimal incremental investment, would enable an

earlier first gold pour while the hard rock comminution is being commissioned, reduce rehandling costs for oxide ore mined in

pre-production, provide significant operational flexibility to continue production during maintenance of the sulphide crushing

circuit and would improve blending optionality.