Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

MAU.TO ·

MONTAGE GOLD REPORTS ON ITS Q2 AND H1-2025 ACTIVITIES Koné project construction on-budget and well on-schedule

Mine Development & Operations

Press

Release

All amounts in US dollar,

unless otherwise specified

montagegold.com 1

MONTAGE GOLD REPORTS ON ITS Q2 AND H1-2025 ACTIVITIES

Koné project construction on-budget and well on-schedule • Strong continued exploration focus • Robust liquidity sources

CONSTRUCTION ACTIVITIES

› Over 3.0 million hours worked without a Lost Time Injury, with more than 2,500 employees and contractors on-site

› Well on track for first gold pour in Q2-2027 and on budget with over $370 million of capital committed as at today,

representing approximately 44% of the total capital expenditure, with prices in line with expectations

› Rapid progress achieved on key process plant activities including the ball mill foundations, pre-leach and tailings

thickeners, with notably the start of CIL tank erection occurring 2 months ahead of schedule which marks a key milestone

› Other key infrastructure is well advanced including the river abstraction facility, TSF, relocation site, and plant buildings,

while the water storage facility was completed and is already holding water

EXPLORATION ACTIVITIES

› 2025 exploration programme increased from 90,000 to 120,000 meters, with 83,280 meters already drilled in H1 -2025,

focused on delineating higher-grade resources with the goal of supplementing production from the onset

› Step-out and in-fill drilling is underway at all 7 new higher-grade satellite deposits for which starter maiden resources

were published in early 2025, whilst drilling progressed on the 6 targets which were advanced to pre-resource stage

› Maiden resources for new discoveries and updated resources for the recently made discoveries are expected to be

published throughout the year

FINANCIAL POSITION

› Robust liquidity and available sources of financing totalling $735 million compared to remaining capital disbursements of

$676 million

Vancouver, Canada — August 12, 2025 — Montage Gold Corp. (“Montage” or the “Company”) (TSX: MAU, OTCQX: MAUTF) is

pleased to report on its construction and exploration activities for Q2-2025, with highlights provided in Table 1 below.

Table 1: Business and financial highlights

THREE MONTHS ENDED SIX MONTHS ENDED

All amounts in $ million unless otherwise specified

June 30,

2025

March 31,

2025

June 30,

2024

June 30,

2025

June 30,

2024

Δ Q2-2025

vs. Q1-2025

CONSTRUCTION ACTIVITIES

Cumulative hours worked, million hrs 2.7 1.0 - 2.7 - +1.7

Lost-Time Injuries Frequency Rate, % 0.0 0.0 - 0.0 - 0.0

Total cumulative capital committed, inclusive of amount disbursed 339.2 217.5 - 339.2 - +121.7

- Cumulative capital disbursed 158.8 84.6 - 158.8 - +74.2

- Cumulative capital committed and to be disbursed 180.4 132.9 - 180.4 - +47.5

EXPLORATION ACTIVITIES

Meters drilled, meters 37,393 45,887 20,543 83,280 20,543 (8,494)

Exploration expenditure 6.4 6.9 3.9 13.3 5.8 (0.5)

CASH FLOW AND LIQUIDITY POSITION1

Cash flows used in investing activities (88.3) (56.7) (0.3) (145.0) (0.3) (31.6)

Cash flows generated from financing activities 150.5 0.4 0.3 151.0 26.4 +150.1

Cash and cash equivalents, end of period 99.9 42.7 24.3 99.9 24.3 +57.2

Total Liquidity and Available Financing 734.8 832.9 24.3 734.8 24.3 (98.1)

1As referenced in the Company’s Financial Statements and Management’s Discussion and Analysis for the three and six months ended June 30, 2025, available on SEDAR+ and on

the Company’s website.

The Company’s interim consolidated Financial Statements and associated Management’s Discussion and Analysis for the three

and six months ended June 30, 2025 and 2024, have been filed under the Company’s profile on SEDAR+ (www.sedarplus.ca) and

are available for download on the Company’s website.

TSX MAU OTCQX MAUTF

montagegold.com 2

Rapid construction progress is being made at the Company’s flagship Koné project in Côte d’Ivoire which remains well on -

schedule to pour gold in Q2-2027 and on-budget. A total of 1,765,720 construction hours were worked in Q2-2025, totalling over

3.0 million since the commencement of the project until today, safely without a Lost Time Injury (“LTI”). Significant progress is

being made on the key processing infrastructure including the ball mill, CIL area, and pre-leach and tailings thickeners. The water

storage facility (“WSF”) has been completed and the tailings storage facility (“TSF”) commenced. The construction of the 225KV

electrical substation, preparation for grid connection , storage buildings, administrative and plant offices, relocation site,

permanent camp and airstrip preparation are advancing well. A total of $339.2 million of capital had been committed as at

quarter-end (inclusive of $ 158.8 million disbursed), which has further increased to approximately $369.6 million as at today,

representing approximately 44% of the total $835 million capital expenditure, with prices in line with expectations.

Figure 1: CIL tank installation

In parallel, the Company continues to be focused on unlocking value through its exploration programme . Since the start of the

year, a total of 83,280 meters has been drilled, already exceeding the 81,815 meters completed during the full year of 2024. Due

to the ongoing successful results and drilling efficiency, the 2025 exploration programme has been increased from 90,000 meters

to 120,000 meters, with a corresponding budget increase of US$4 million to US$18 million. H1-2025 exploration efforts focussed

on three parallel tracks: infill and extension drilling of previously delineated starter deposits, advancing pre -resource targets

toward maiden resource definitio n, and testing new targets. An updated Mineral Resource Estimate was published on July 21,

2025, for the Gbongogo South and Koban North deposits , which were prioritized given their proximity to the haulage road

already built. Both deposits are expected to continue to grow this year given the ongoing drill programme and drill results not

yet incorporated in the current Mineral Resource Estimate . Furthermore, resource updates are expected for year -end for other

targets such as Yere North, Lokolo Main, Sena and Diouma North, where drilling has been done in H1-2025.

Martino De Ciccio, Chief Executive Officer of Montage, commented: “We are very pleased with the rapid progress being made to

unlock value at our Koné project in Côte d’Ivoire, which is one of the largest gold projects currently under construction globally.

On the construction front, we remain on budget and well on schedule for first gold pour in Q2 -2027. With over 2,500 employees

and contractors on -site, we are pleased to have already achieved over 3.0 million hours worked without a lost -time injury.

Moreover, we ha ve commenced building the CIL tanks more than two months ahead of schedule , due to the rapid ramp -up of

construction activities and efficient execution of the earthworks and foundations.

On the exploration front, the continued delineation of resources, as recently published, provides significant confidence in

achieving our previously announced short-term objective of discovering at least 1 million ounces of Measured and Indicated

Resources 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 commencement of production while maintaining an annual production of at least 300koz for more than 10 years. Given

the continued success of the programme, we have upsized the 2025 exploration campaign from 90,000 meters to 120,000 meters,

with 83,280 meters already drilled since the start of the year—making it one of the largest single-asset exploration programmes

globally.

Our continued success builds on the momentum generated thus far to advance our strategy of creating a premier African gold

producer and delivering value for all our stakeholders.”

TSX MAU OTCQX MAUTF

montagegold.com 3

KONÉ PROJECT UPDATE

Construction continues to progress on -budget and well on-schedule for first gold pour in Q2 -2027, with key highlights

summarized below:

› On-site workforce now exceeds 2,500 employees and contractors, with over 90% local employment, demonstrating the

Company’s commitment to local content and community engagement.

› Montage’s construction team has ramped -up construction activities, with key self -perform tasks undertaken including

earthworks, concrete and civils works, building and camp construction, and electricals. These activities are supported by the

vocational training programmes which were launched in Q3-2024, in partnership with the government -accredited Lycée

Technique de Mankono. On-site training encompasses steel fixing, building, electric al, masonry, carpentry, plumbing,

firefighting, working at heights, environmental management, and heavy equipment operation.

› Strong continued safety record with over 3.0 million hours without a LTI since construction commenced until today.

› Process plant construction continues to rapidly advance:

─ CIL tank construction has commenced, occurring 2 months ahead of schedule which marks a key milestone.

─ Mill foundation and first lift is complete, with the second lift underway.

─ Pre-leach and tails thickener concrete pours are complete.

─ Reagent, cyanide and lime storage areas are progressing well with concrete foundations complete, and construction of

steel-framed buildings has commenced 7 weeks ahead of schedule.

─ Construction of the plant site office, control room and main admin buildings have progressed rapidly, with the site

construction and admin teams already operating from the new plant site office.

─ Gold room pad structural fill placement has been completed.

Figure 2: Process plant key infrastructure

› Engineering, design, and procurement progress continues to advance alongside the site works, with infrastructure engineering

expected to be 90% complete in the coming weeks.

TSX MAU OTCQX MAUTF

montagegold.com 4

› Fabrication of long-lead items such as the crushers, mill, thickeners, HPGR and structural steel are all progressing on schedule

with pricing in line with or below budget.

› Water supply remains on track with the installation of decant tower units complete at the river abstraction site. Concrete pours

and rock fill are complete. The transfer, booster station, and decant concrete are complete. Field fabricated tanks have been

completed and hydrostatically tested. Mechanical and piping installation is well advanced. Electrical switchrooms are in plac e

and field wiring has commenced. Welding of the high-density polyethylene (“HDPE”) pipes continues to progress on schedule.

Figure 3: River abstraction site and pumping infrastructure

› Water Storage Facility is complete and is already holding water.

Figure 4: Water storage facility

› Grid connection: The 22.5km power line to the main 225KV grid connection point has now been cleared, paving the way for

the installation of the tower bases. On site, underground conduits for high voltage electrical cables are well advanced

connecting key processing and administrative buildings.

TSX MAU OTCQX MAUTF

montagegold.com 5

Figure 5: Electrical substation and high-voltage grid connection preparation

› Gbongogo haul road clearing has been completed between the Kon é processing plant and the Marahoué river crossing.

Culverts have been emplaced, with erosion protection ongoing across the length of the haul road. The remaining haul road

north of the Marahoué river is scheduled to commence in Q4-2025.

› Tailings Storage Facility (“TSF”) key equipment, including TSF liners and rip rap, are ongoing with deliveries tracking ahead of

schedule. The rapid earthworks progress across the entire project has enabled TSF earthworks to commence 3 months ahead

of schedule.

› Airstrip earthworks is complete . Construction of the airstrip hanger pad and installation of concrete runway markers is

ongoing. The airstrip was approved by the Autorité Nationale de l'Aviation Civile in Q1 -2025.

Figure 6: Airstrip and TSF clearing

› The permanent camp construction is advancing well as 240 rooms have been completed. Water treatment facility is now

operational, with final works underway at facility and recreational buildings.

Figure 7: Permanent camp

TSX MAU OTCQX MAUTF

montagegold.com 6

› The Livelihood Restoration Plan (“LRP”) continued with the implementation of the four pilot programmes aiming to restore

and enhance the livelihoods of Persons Affected by the Project (“PAPs”). These pilot programmes include the design and

implementation of farming and gardening projects, as well as the training of PAPs to utilise the program mes to increase crop-

generated revenues. The pilot projects currently involve 162 PAPs following agreements with affected communities. The results

of the pilot programmes will be used to develop a complete LRP programme in the coming months. Additionally, th e literacy

programme continues to be rolled out to the surrounding communities, benefiting over 500 individuals.

› Resettlement village construction is now 85% complet e, with strong progress on construction of the village school and on

places of worship. A total of 42 buildings have already been seen roofs installed 2 months ahead of schedule , with interior

plastering and painting ongoing.

Figure 8: Resettlement village construction and pilot farming project

Timeline to first gold pour

The Company remains on track for first gold pour in Q2 -2027, based on a 27 -month construction period for the process plant ,

with key upcoming milestones presented in Table 2 below. As noted above, major construction works for the water storage dam,

power supply, site infrastructure, and earth and concrete works are well underway.

Table 2: Koné project timeline to first gold pour

Work Stream Q1-2025 Q2-2025 Q3-2025 Q4-2025 Q1-2026 Q2-2026 Q3-2026 Q4-2026 Q1-2027 Q2-2027

Tailings Dam & Water Dams

Tailings Dam * * *

Water Storage & Dam * *

Construction

Power Supply * * * * *

Site Infrastructure * * * * * * *

Earth works & Concrete Works * * * * * *

Structural, Mechanical, Piping * * * * * *

Electrical * * * *

Process Plant Commissioning * *

First Gold *

In order to have greater mining flexibility and agility to bring into production new discoveries made, along with potential cost

savings, owner mining with vendor equipment financing is being evaluated alongside contract mining, with a full tender process

undertaken on both options. A decision is expected to be announced in the coming months.

CASH FLOW, LIQUIDITY SOURCES AND CAPITAL REQUIREMENTS

Cash flows generated from financing activities increased by $150.1 million from $0.4 million in Q1 -2025 to $150.5 million in Q2-

2025, driven by the partial draw down of the Wheaton Stream in Q2 -2025. Cash flows used in investing activities increased by

$31.6 million from $56.7 mill ion in Q1 -2025 to $88.3 million in Q2 -2025. This increase reflects the ongoing ramp -up of

construction activities for the Koné project.

TSX MAU OTCQX MAUTF

montagegold.com 7

As at June 30, 2025, the Company had a consolidated cash balance of $99.9 million, compared to $42.7 million as at March 31,

2025, as the Company drew $156.3 million of the Wheaton Stream in Q2 ‑2025, partially offset by the investments in mineral

property, plant and equipment (Koné Project construction), as well as operating cash outflows for general and administrative

expenses and exploration activities.

As at June 30, 2025, the Company had total liquidity and available financing of $734.8 million, comprised of $593.8 million o f

undrawn available financing composed of the $468.8 million Wheaton Stream, $50.0 million Zijin Loan Facility and $75.0 millio n

Wheaton Loan Facility, its cash on hand and other liquid assets. Subsequently, the Company drew a further $156.3 million of the

Wheaton Stream on August 4, 2025, increasing the total amount drawn on the Wheaton Stream to $312.5 million, with $312.5

million remaining undrawn.

Given the carve-out embedded into the Wheaton and Zijin Financing Package documentation to allow for a $50.0 million Working

Capital Facility, the Company ran a tender process over the recent months which prioritized West African lending banks. The

Working Capital Facility would serve to provide greater financial and operating flexibility during construction and operating

phases, and as such would rank pari -passu with existing creditors as allowed under the current Financing Package, with the use

of proceeds covering working capital, exploration, general and administration, and capital expenditures. Following a successful

tender process, Montage received competitive binding commitment letters for a Working Capital Facility of $50.0 million with a

5-year tenure, which the Company is currently evaluating.

A total of $339.2 million of capital had been committed for the Koné project construction as at June 30, 2025 (inclusive of

amounts disbursed), which further increased to $369.6 million as at today, representing 44% of the total $835 million initial

capital expenditure estimate, with prices in line with expectations. A total of $158.8 million has been disbursed for the Kon é

project construction, of which $74.2 million in Q2-2025, with approximately $676.2 million remaining to be disbursed (inclusive

of $84.0 million of contingencies).

EXPLORATION ACTIVITIES

The Company is focused on advancing the Koné project construction whilst simultaneously unlocking value through achieving its

short-term exploration target, as published on October 7, 2024, of discovering more than 1Moz of Measured and Indicated

Resources, at a grade 50% higher than the Koné deposit, 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 years1.

The Company completed 37,393 meters of drilling amounting to an exploration expenditure of $6. 4 million in Q2-2025. The

Company completed 83,280 meters, amounting to an exploration expenditure of $13.3 million, during the six -month period

ended on June 30, 2025. Due to the ongoing successful results and drilling efficiency, the 2025 exploration programme has been

increased from 90,000 meters to 120,000 meters, with a corresponding budget increase of US$4 million to US$18 million.

The H1-2025 exploration programme focussed on three parallel tracks: infill and extension drilling of previously delineated

starter deposits, advancing pre-resource targets toward maiden resource definition, and testing new targets. In total, 23 targets

have been drill tested since the start of the year, with mineralization confirmed at all targets. Targets along the Gbongogo -

Koroutou Trend, including Gbongogo South and Koban North deposits, were prioritized given their proximity to the haulage road

already built.

Based on the efforts conducted in 2024, the Company announced an updated Mineral Resource Estimate on April 8, 2025, which

included maiden resources for 7 new deposits, while another 6 targets were advanced to the pre -resource definition stage. On

July 21, 2025, the Company published an update to the Mineral Resource Estimate of both the Gbongogo South and Koban North

deposits which increased in size while exhibiting a high rate of conversion from Inferred to Indicated Resources. In-fill and step-

out drilling at the ANV deposit is also expected to yield an updated, larger Indicated Resource estimate, in late Q3 -2025, whilst

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

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

TSX MAU OTCQX MAUTF

montagegold.com 8

resource updates are expected for year -end for other targets such as Yere North, Lokolo Main, Sena and Diouma North, where

drilling has been done in H1-2025.

Additionally, pre-production drilling of approximately 56,000 meters has been launched earlier this year and is expected to be

completed in Q3 -2025. The programme is comprised of approximately 70% Grade Control (“GC”) and 30% Advanced Grade

Control (“AGC”) drilling at the Koné and Gbongogo Main deposits, designed to better identify higher-grade blocks in the resource

model ahead of the planned first gold pour. Once drilling is completed in Q3-2025, full results will be integrated into the resource

block model, and published in late 2025.

In addition to the exploration activities on the Koné project, on April 7, 2025, the Company anno unced a strategic partnership

with African Gold Limited (“African Gold”; ASX:A1G). The investment in African Gold was subsequently closed in Q2-2025, in two

tranches, with Montage obtaining a 17.5% interest in African Gold. Furthermore, on May 6, 2025, the Company anno unced a

strategic partnership with Aurum Resources (“Aurum”; ASX:AUE). The investment was subsequently closed on July 14, 2025,

with Montage obtaining a 9.9% interest in Aurum, strengthening the Company’s position along the Boundiali Belt.

TSX LISTING

The Company graduated to the TSX at market open on April 29, 2025, and continues to trade under the stock symbol “MAU”.

The graduation represents a significant milestone in the Company’s journey towards becoming a premier African gold producer

as it is expected to enhance visibility, broaden the investor base, increase liquidity, and provide potential index inclusion.