St-Georges Eco-Mining Announces Initial Revenues and New Quebec Discovery

Montréal, Québec — November 13, 2025 — Leads & Copy — St-Georges Eco-Mining Corp. (CSE: SX) (OTCQB: SXOOF) (FSE: 85G1) has announced two major milestones: its subsidiary, Metallurgie St-Georges, has recorded its first revenues, and a new high-grade nickel-copper-PGM target zone has been identified on its Manicouagan project in Quebec.

These achievements highlight the Corporation's dual strategic focus on both critical mineral exploration and revenue generation from metallurgical processes.

Metallurgie St-Georges, a wholly-owned subsidiary of the Corporation, generated its first revenues in October 2025. Further revenues may be recorded before the end of the financial year, and the subsidiary is preparing to generate new revenues in 2026. The majority of these revenues are expected to come from the processing of an initial multi-tonne shipment of geothermal material concentrate from Iceland.

The 2025 surface exploration campaign on the Manicouagan project has refined the project's geological model and discovered the new Manic Southeast Zone, located approximately 6.5 km east of the known Bob mineralized corridor.

Two samples selected from this new zone returned grades of up to 2.28% Ni, 0.37% Cu, 0.17% Co, and 0.81 g/t Pd + 0.55 g/t Pt, confirming the presence of iron-rich and magnetite-rich lenses (several samples > 70% Fe₃O₄) with high platinum group element (PGE) grades, consistent with massive magnetite-sulfide horizons.

Investors are advised that selected samples are selective in nature and may not be representative of the mineralization of the entire project.

Multi-element analysis shows a marked positive correlation between nickel, cobalt, iron and platinum group elements (r = 0.83–0.95), suggesting a common origin related to a sulfurized magmatic system.

Surface work in 2025 (in red in the images) was carried out outside the area covered by the 2022 geophysical surveys. They explore trends and structural corridors derived from the interpretation carried out by Fritz Geophysics in its 2023 report, which re-examined the 2022–2023 airborne magnetic survey.

Stream sediment samples taken east of the project (yellow ellipse) revealed traces of platinum, which adds context to the overall geophysical and structural footprint and suggests that the PGE-bearing system extends well beyond the currently sampled area.

The presence of sulfur-rich rocks outside the initial area of interest prompted the team to extend the sampling approximately 3.5 km eastward to assess the prospecting potential of this area. One of the stream sediment samples could indicate an upstream anomaly, having detected traces of platinum (0.013 g/t Pt) while palladium was below the detection limit. These results could indicate a distal dispersion plume in PGE.

According to Herb Duerr, president and CEO of St-Georges Eco-Mining Corporation, the surface campaign aimed to examine areas with a geophysical context similar to known mineralization zones, and the work confirms comparable mineralization to that observed on other project targets. Given these results, the Corporation will seek authorization to conduct drilling to test the mineralization at depth.

The 2022–2023 airborne magnetic survey and its subsequent interpretation (March 2023) by Fritz Geophysics refined the project's geological model, revealing contrasting magnetic domains, a potential deep intrusive body, and several concentric structures interpreted as secondary impact craters.

The integration of these data with the 2022-2024 drill holes and the new 2025 surface program defines a large structural corridor over 5 km long by 2 km wide, centered on the historic Bob zone. The model suggests an impact-modified magmatic system in which deep intrusions and impact structures combine to locate Ni-Cu-Co-PGM mineralization.

The Bob zone has drill intersections reaching 2 m at 3.2% Ni, 0.4% Cu, 0.2% Co, and 9 g/t of PGE (Pt+Pd+Rh+Ru) as well as continuous low-grade mineralization (e.g., 91.3 m at 0.24% Ni, 0.25% Cu, 0.01% Co) near these structures. A surface bulk sample from this mineralization showed an average composition of 2.6% Ni, 1.7% Cu, 0.10% Co and 12 g/t of PGE (Pt-Pd-Rh-Ru-Ps-Ir).

The Corporation plans to conduct a high-resolution ground magnetic and electromagnetic survey, followed by mechanized trenching and groove sampling on the new Manic Southeast Zone. The 3D geological model will be updated and a 2026 drilling program will be prepared to test both the depth extensions of the Bob zone and the new area of interest to the east.

All samples were taken by experienced field crews under the direction of the Corporation's qualified geologist and delivered to IGS Laboratories in Delson, Quebec, an ISO/IEC 17025 certified facility. Analytical methods used included 4-acid digestion with ICP-OES finish for base metals and pyrolysis analysis with ICP-OES finish for platinum group elements.

George Yordanov, an independent and qualified person within the meaning of Canadian Standard 43-101, has reviewed and approved the technical information contained in this press release.

Neha Tally, Corporate Secretary

For further information or questions: public@stgeorgesecomining.com

About St-Georges Eco-Mining Corp.

St-Georges develops new technologies and holds a diversified portfolio of assets and pending patent intellectual property within several promising subsidiaries, including EVSX, a leading North American initiative in advanced end-of-life battery processing; Metallurgie St-Georges, with metallurgical research and development and related intellectual property, including processing and recovery of high-grade lithium from spodumene; Iceland Resources, with high-grade gold and silver exploration projects, including the flagship Thor gold asset; H2SX, which is developing technology to convert methane into solid carbon and turquoise hydrogen; and exploration projects in Quebec, including the Manicouagan and Julie critical minerals projects on Quebec's North Shore and the Notre-Dame niobium project on Lac St-Jean.

See the corporation's website: https://stgeorgesecomining.com/fr/

The Canadian Securities Exchange (CSE) has not reviewed this press release and does not accept responsibility for the adequacy or accuracy of its content.

Source: St-Georges Eco-Mining Corp.