AMEX Gold Mining Inc. (TSX-V: AMX) (FSE: MX0) (OTCQX: AMXEF) is pleased to announce the discovery of a new gold zone, to be named the Rosé Zone, at the Perron Project in the northwestern Abitibi region of Quebec (Figure 1). The newly identified zone of mineralization commences approximately 165 m directly below the ramp development currently being advanced for the ongoing bulk sample and the planned future mine. The Rosé Zone provides Amex with an exciting opportunity to continue to add important, accretive ounces to the project. The zone has seen minimal drilling with one of the deepest holes drilled, PE-26-950 (see Figures 2 and 3 below) at 410 m, containing VG (‘visible gold’), leaving the zone open at depth for expansion. In addition, Amex is pleased to provide an update on the on-going exploration at Perron and Perron West. See Tables 5 and 6 for drill hole coordinates.

Drill highlights from the Rosé Zone include (see Table 1):

• 8.02 g/t Au over 4.30 m including 23.93 g/t Au (and 8.80 g/t Ag) over 1.15 m at a vertical depth of ~210 m in hole PE-26-934
• 11.78 g/t Au over 1.80 m including 30.86 g/t Au (and 4.70 g/t Ag) over 0.65 m at a vertical depth of ~290 m in hole PE-26-908
• 10.94 g/t Au over 1.20 m including 21.22 g/t Au (and 4.30 g/t Ag) over 0.55 m at a vertical depth of ~280 m in hole PE-25-878

The discovery of the Rosé Zone in close proximity to the planned underground infrastructure is beneficial to Amex for multiple reasons:

1. Exploration Savings – Potential to drill for the extensions of the new zone at depth from the ongoing underground development,
2. Limited underground development would be needed in the future mine plan to reach the new zone, considering its proximity to underground development currently in progress*

*Readers are cautioned that no economic assumptions can be made on newly encountered mineralization until an updated mineral resource estimate and accompanying updated economic assessment of the project would take place.

“Our 2026 drill program to date has been successful across multiple fronts,” said Aaron Stone, Vice President Exploration of Amex Gold Mining. “The discovery of a new zone in such close proximity to our fully financed ramp development is what truly sets the Rosé zone apart. While it is early days in the life of this discovery, the Rosé zone has the potential to add important ounces to the future proposed operation. The team’s initial observations are that the mineralization is hosted within a set of tension veins stemming from a larger structure that may also be controlling the mineralization of the Alizée Zone to the north-northwest. Further drilling and modelling to validate this theory is planned.”

Interpretation of the zone will continue to be developed, but early-stage observations draw similarities to the Alizée Zone to the north, where the discovery hole generated an intercept of 31.87 g/t Au over 5.10 m (see press release dated January 25, 2021). Currently, the new zone can be traced for 275 m of vertical extension and 70 m of strike length and remains open in multiple directions.

Figure 1: Geological Map of the Perron Project, highlighting the location of today’s newly announced zone (Rosé Zone – 13) and drill holes.

Figure 2: Screenshot looking west showing the emplacement of the newly discovered Rosé Zone and its proximity directly below the Perron underground ramp currently being developed.

Figure 3: Photos displaying VG (‘visible gold’) mineralization from drill holes PE-26-934 and PE-26-950 in the newly discovered Rosé Zone.

Table 1: Assay results from the new discovery Rosé Zone.

50

1

40

0

64

0

50

2

30

5

30

1

The Company is also pleased to provide an update below on drilling across various zones on Perron in addition to a first update on drilling activities on Perron West in Ontario, where Amex is continuing with its maiden drill program. Across Amex’s various lab partners, 3765 samples are outstanding for the Quebec drill program and 6021 samples outstanding for Ontario (in addition to 1654 soil samples), showing the significant amount of information remaining to be received as drilling continues.

Gratien, Grey Cat, Central Polymetallic and N110 Zones

Drill hole PEX-26-319 into the N110 Zone provided a high-grade intercept of 43.41 g/t Au over 1.20 m starting from 141.00 m including 82.70 g/t Au over 0.60 m (Figure 4 and Table 2). Currently, all ounces within the N110 Zone are in the inferred category, providing an opportunity to potentially upgrade these ounces to indicated and add them to future feasibility studies. The geological team is currently investigating this result to plan follow-up drilling.

Figure 4: Core photos showing VG (‘visible gold’) mineralization in drill hole PEX-26-319 of the N110 Zone.

Drilling in both the Gratien and Grey Cat Zones continue to provide important results and improve Amex’s understanding of the mineralization in these respective zones (Figures 5 and 6, Table 2). Deeper drilling is planned to extend these zones at depth. The proposed pads are located in swampy areas of the property, so road building and/or a winter drill campaign are being considered.

Figure 5: Updated longitudinal of the Gratien Zone showing today’s released drill holes.

Figure 6: Updated longitudinal of the Grey Cat Zone showing today’s released drill holes.

Only a singular drill hole has been completed in the Central Polymetallic Zone (‘CPZ’) so far in 2026, producing a high-grade polymetallic intercept of 4.09 % Zn, 0.82 g/t Au and 2.03 g/t Ag over 1.50 m including 11.35 % Zn, 1.38 g/t Au and 3.50 g/t Ag over 0.50 m at a vertical depth of ~675 m (see Figure 7 below and Table 3). The result shows that the CPZ remains open at depth for expansion with the potential for polymetallic grades to increase at depth.

Figure 7: Core photo displaying the high-grade VMS mineralization encountered in drill hole PEG-25-888 of the Central Polymetallic Zone.

Table 2: Assay results from the N110, Gratien and Grey Cat Gold Zone

17

0

19

0

22

0

Table 3: Assay results from the Central Polymetallic Zone.

60

1

Perron West Drilling

See Figure 8 below for an overview of Amex’s ongoing inaugural drill program at Perron West in Ontario. To date, initial drilling has been completed in Target area D, work is continuing in areas A and C, with area B remaining undrilled. A total of 7675 assays (including 1654 soil sample assays) are waiting to be received from Amex lab partners.

Figure 8: Drill plan for Amex Gold Mining’s ongoing inaugural drill program on Perron West, Ontario.

The Amex team is extremely encouraged by initial observations from the drill program. Nearly all drill holes have encountered significant sulphide mineralization and/or large quartz veins with alteration assemblages similar to those observed on the Perron Project in Quebec.

In Sector A, hole PW-26-002, the second drill hole conducted on the property, encountered a prosperous sulphide horizon and returned results of 22.20 g/t Ag, 0.29 % Cu and 0.34 % Zn over 1.20 m (see Figures 9A and 10, Table 4 below). Given the close relationship between the VMS and gold mineralization at Perron in Quebec, the Amex team is extremely encouraged not only at the prospect of a new VMS discovery, but also the opportunity of vectoring in on potential gold zones in the area.

In Sector D (see Figures 9B and 11, Table 4 below), multiple zones of significant sulphide mineralization have been intersected along with highly anomalous gold results in drill holes PW-26-010 and PW-26-012. These results point to the potential emergence of a new gold zone. With approximately 1 km between the two anomalous results, the Amex team have begun work to better understand the potential controls on mineralization in the area. Alteration packages being observed contain silica, sericite, carbonate and chlorite and hold certain similarities to what can be observed around the known resources in Quebec.

Figure 9: Geological and geophysical close-up map of Target Area A and Target Area D, highlighting the location of today’s significant intercepts on the Perron West Property.

Figure 10: Core photos from several drill holes across the Perron West property, displaying the significant sulphide mineralization and quartz veining that have been encountered. Amex is planning follow up drilling across these targets.

Multiple holes have also encountered large, multi-metre quartz veins, with many results still pending. Hole PW-26-001, which is the first hole on the property, encountered a large 1.8 m milky to smoky quartz vein with significant chlorite alteration. Chlorite alteration can often be found within the veins of the Champagne Zone. Hole PW-26-011, which lies along strike from the VMS mineralization encountered in hole PW-26-002, intersected not only significant sulphide mineralization but also multiple, large smoky quartz veins (see Figure 10). The Company is encouraged by these visuals and is planning follow-up drilling around this possible mineralized trend, which seems to also correspond to a weak electromagnetic (‘EM’) signature. To be able to more accurately measure this EM signature, Amex is planning a BHEM (Borehole Electromagnetic) survey across multiple holes on Perron West to better model the potential trend of this mineralization.

Figure 11: Core photos displaying VMS style mineralization on the Perron West property encountered in drill holes PW-26-008, 010 and 012 in Target Area D.

Table 4: Assay results from the Perron West Property.

Table 5: Drillhole coordinates for today’s results on the Perron Property, Quebec.

Table 6: Drillhole coordinates for the Perron West Property, Ontario.

32

0

About Amex

Amex Gold Mining Inc. has made significant high-grade gold discoveries, along with copper-rich volcanogenic massive sulphide zones, at its 100%-owned Perron Gold Project. It is located in the territory of Valcanton in northern Quebec, approximately 110 kilometres north of Rouyn-Noranda.

The Perron Project in Quebec consists of 183 contiguous claims for a surface area of 65.72 km². The project hosts several zones of high-grade gold mineralization, VMS mineralization and ‘hybrid’ gold-rich VMS mineralization.

When combined with the adjacent and contiguous Perron West Project and Abbotsford and Hepburn Projects (including additional claims acquired through staking) in Ontario, the consolidated land package spans a district-scale 570.94 km². This extensive property lies within highly prospective geology favourable for both high-grade gold and VMS mineralization.

The Project benefits from excellent infrastructure: it is accessible by a year-round road, located just 30 minutes from an airport, and approximately 6.5 km from the Town of Normétal. Being in close proximity to several processing plants owned by major gold producers also constitutes a strategic advantage.

Qualified Persons and QA&QC

The technical information in this news release has been reviewed and approved by Aaron Stone, P.Geo (OGQ – 2170, PGO – 3708), Vice President, Exploration of the Company and Jérôme Augustin P.Geo. Ph.D., (OGQ 2134), an Independent Qualified Person as defined by Canadian NI 43-101 standards. The drilling campaign and the quality control program have been planned and supervised by Jérôme Augustin. Core logging and sampling were completed by Laurentia Exploration.

The quality assurance and quality control protocols include insertion of blank or standard samples every 10 samples on average, in addition to the regular insertion of blank, duplicate, and standard samples accredited by Laboratoire Expert and AGAT Laboratories Ltd, during the analytical process.

For all analyses targeting gold mineralization, gold values are estimated by fire assay with finish by atomic absorption. Values over 3 ppm Au are reanalyzed by fire assay with finish by gravimetry by Laboratoire Expert Inc, Rouyn-Noranda. Samples containing visible gold mineralization are analyzed by metallic sieve. For additional quality assurance and quality control, all samples were crushed to 90% less than 2 mm prior to pulverization, in order to homogenize samples which may contain coarse gold.

For all analyses targeting gold and base metals mineralization, gold, platinum and palladium values are estimated by lead fusion fire assay with atomic absorption spectroscopy finish, by AGAT Laboratories. Metals and trace elements values are estimated using four acid digestion with ICP-EOS/MS finish, by AGAT Laboratories. For additional quality assurance and quality control, all samples were crushed to less than 2mm, and then to 85% passing 75µm, in order to homogenize samples which may contain coarse gold.