Sankamap Metals Inc. (CSE: SCU) (‘Sankamap’ or the ‘Company’) is pleased to announce the completion of data processing and reports from Expert Geophysics for the 374 line-kilometer Airborne Magnetotelluric EM Survey (‘Mobile MT’) completed in July 2025. The survey covered 3,500 hectares of Sankamap’s 4,500-hectare (‘Ha’) Kuma property (‘Kuma’) (populated areas excluded) located 37 kilometers (‘km’) southeast of Honiara in south-central Guadalcanal, Solomon Islands.

CEO John Florek commented:

‘We are very encouraged by the results of the airborne geophysical survey, which reveal clear signatures consistent with porphyry-style mineralization. The strong alignment between these geophysical features, surface geochemistry, and alteration mapping gives us greater confidence in the continuity of mineralization at depth and helps refine our upcoming drill targets.’

Highlights

• The results of the Mobile MT survey at Kuma reveals a broad 5 x 2 km ring-shaped zone of high conductivity that flanks a central 2 x 3 km highly resistive feature (see Figure 2), with the conductive feature spatially correlating to the mapped lithocap.
• Geophysical data indicate potential for multiple intrusive centers and porphyry systems, while the alignment of magnetic and conductive trends suggests structural controls or fluid pathways associated with mineralization.
• The resistive and conductive trends display typical porphyry signatures, similar to other economic porphyry systems currently being mined.

The results from the 2025 Mobile MT survey delineate resistive and conductive features consistent with porphyry, epithermal, and skarn-style mineral systems. The geophysical data further corroborate earlier surface exploration findings at the Kuma property, which delineated a well-developed lithocap exceeding two kilometers in extent. Hyperspectral analysis has outlined extensive phyllic, argillic, and advanced argillic alteration zones, while grab sampling has returned impressive assay results of up to 11.7% copper (‘Cu’) and 13.5 g/t gold (‘Au’), underscoring the strength and continuity of mineralization within the system.

The Kuma Project is strategically located along a highly prospective trend that hosts several major deposits; Lihir containing 71 Moz Au¹ (310 Mt containing 23 Moz Au at 2.3 g/t Proven+Probable (‘P&P’), 520 Mt containing 39 Moz Au at 2.3 g/t indicated, 81 Mt containing 5 Moz Au at 1.9 g/t measured, 61 Mt containing 4.9 Moz Au at 2.3 g/t Inferred) and Panguna containing 19.3 Moz Au + 5.3 Mt Cu² (1.5 Mt containing 16.1 Moz Au at 0.33 g/t and 4.6 Mt Cu at 0.3 % Indicated, 300 Mt containing 3.2 Moz Au 0.4 g/t and 0.7 Mt Cu Inferred), both share geological similarities to the Kuma project.

Technical Discussion

Porphyry Cu-Au systems can exhibit a broad spectrum of electromagnetic (EM) responses, reflecting different host rocks, alteration styles, erosional levels and geological conditions unique to each system. For example, systems with intact lithocaps, which is potentially the case at Kuma, often differ from those with eroded or exposed mineralized cores, producing either predominantly conductive or resistive EM signatures.

As at Kuma, most calc-alkaline porphyry systems exhibit elevated electrical conductivity, largely attributable to extensive pyritic halos and mica-rich alteration zones that envelop a potassic core (as displayed in Figure 2 and 3). This core typically appears as a distinctly resistive feature, reflecting zones of magnetite or K-feldspar alteration characterized by relatively low sulfide concentrations.

In July 2025, Expert Geophysics was engaged to conduct a 374 line-kilometer airborne geophysical survey (Mobile MT), which was flown along north-south lines at 100-meter intervals (Figure 1).

The final geophysical data processing has been completed. Sankamap, together with Expert Geophysics and independent geophysical consultants familiar with this type of data, have reviewed the results. The survey highlights several significant geophysical features that will assist in defining the next phase of exploration and drill targeting.

Figure 1: Kuma property and lithocap extent with Mobile MT survey flight lines.

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https://images.newsfilecorp.com/files/11623/272353_a2474b4434dceb50_002full.jpg

The geophysical models reveal a highly conductive feature that forms a continuous ring-shaped zone flanking a central resistive body. This conductive anomaly appears consistent with a potassic intrusive core or a resistive intrusive complex at depth. Notably, the highest conductivity corresponds with surface zones of advanced argillic and clay-mica alteration (Figure 2).

The conductivity and resistivity highs coincide with a previously mapped annular topographic depression, suggesting potential preferential erosion within the propylitic alteration zone surrounding a core of phyllic-altered rocks (Figure 2). The alignment of these geophysical, geological, and geomorphological features supports a coherent porphyry-style hydrothermal model, with a resistive intrusive core surrounded by conductive alteration halos and erosional depressions marking outer alteration zones.

The integration of these datasets provides a strong 3D framework for ongoing exploration and drill targeting.

Figure 2: Apparent conductivity map from Mobile MT survey on the Kuma property at -200m elevation.

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Figure 3: Resistivity section at 8919250 mN from Mobile MT survey on the Kuma property.

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Strategic Plan

• Acquisition and deployment of drilling equipment underway in preparation for the January 2026 drilling campaign.

Kuma Property

• Target Refinement: Ongoing analysis of newly released geophysical and geological datasets to define and prioritize high-quality drill targets.
• Pad & Camp Construction: Scheduled to begin in late November.
• Field Visit: Planned for early November to ground-truth targets, verify geological interpretations, and finalize logistics.
• Drilling Program: Inaugural campaign to commence in January 2026, marking a key milestone in advancing the Kuma Project toward discovery.

Fauro Property

• Prospecting activities to begin, following up on additional magnetic highs associated with elevated gold and copper values (see press release dated July 16, 2025).

Corporate & Investor Relations

• Upcoming exploration milestones to serve as key catalysts for shareholder value creation.
• Targeted marketing campaign underway to showcase the company’s exploration potential and investment opportunity.

Grant of Options

Subject to regulatory approval, the Company has granted 2,250,000 stock options to its directors, officers and consultants, exercisable for five years at a price of $0.30.

About Sankamap Metals Inc.

Sankamap Metals Inc. (CSE: SCU) is a Canadian mineral exploration company dedicated to the discovery and development of high-grade copper and gold deposits through its flagship Oceania Project, located in the South Pacific. The Company’s fully permitted assets are strategically positioned in the Solomon Islands, along a prolific geological trend that hosts major copper-gold deposits; including Newmont’s Lihir Mine, with a resource of 71.9 million ounces of gold¹ (310 Mt containing 23 Moz Au at 2.3 g/t P+P, 520 Mt containing 39 Moz Au at 2.3 g/t indicated, 81 Mt containing 5 Moz Au at 1.9 g/t measured, 61 Mt containing 4.9 Moz Au at 2.3 g/t Inferred).

Exploration is actively advancing at both the Kuma and Fauro properties, part of Sankamap’s Oceania Project in the Solomon Islands. Historical work has already highlighted the mineral potential of both sites, which lie along a highly prospective copper and gold-bearing trend, suggesting the possibility of further, yet-to-be-discovered deposits.

At Kuma, the property is believed to host an underexplored and largely untested porphyry copper-gold (Cu-Au) system. Historical rock chip sampling has returned consistently elevated gold values above 0.5 g/t Au, including a standout sample assaying 11.7% Cu and 13.5 g/t Au²; underscoring the area’s significant potential.

At Fauro, particularly at the Meriguna Target, historical trenching has returned highly encouraging results, including 8.0 meters at 27.95 g/t Au and 14.0 meters at 8.94 g/t Au³. Complementing these results are exceptional grab sample assays, including historical values of up to 173 g/t Au³, along with recent sampling by Sankamap at the Kiovakase Target, which returned numerous high-grade copper values, reaching up to 4.09% Cu. In addition, limited historical shallow drilling intersected 35.0 meters at 2.08 g/t Au³, further underscoring the property’s strong mineral potential and the merit for continued exploration. With a commitment to systematic exploration and a team of experienced professionals, Sankamap aims to unlock the untapped potential of underexplored regions and create substantial value for its shareholders. For more information, please refer to SEDAR+ (www.sedarplus.ca), under Sankamap’s profile.

1. Newcrest Technical Report, 2020 (Lihir: 310 Mt containing 23 Moz Au at 2.3 g/t P+P, 520 Mt containing 39 Moz Au at 2.3 g/t indicated, 81 Mt containing 5 Moz Au at 1.9 g/t measured, 61 Mt containing 4.9 Moz Au at 2.3 g/t Inferred)

2. Historical grab, soil and BLEG samples from SolGold Kuma Review June 2015, and SolGold plc Annual Report 2013/2012

3. September 2010-June 2012 press releases from Solomon Gold Ltd. and SolGold Fauro Island Summary Technical Info 2012

QP Disclosure

The technical content for the Oceania Project in this news release has been reviewed and approved by John Florek, M.Sc., P.Geol., a Qualified Person in accordance with CIM guidelines. Mr. John Florek is in good standing with the Professional Geoscientists of Ontario (Member ID:1228) and a director and officer of the Company.

The Canadian Securities Exchange has not approved nor disapproved this press release.

Forward-Looking Statements

Forward-Looking Statements Certain statements in this release constitute ‘forward-looking statements’ or ‘forward-looking information’ within the meaning of applicable securities laws including, without limitation, the timing, nature, scope and details regarding the Company’s exploration plans and results at its projects. Such statements and information involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of the Company, its projects, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such statements can be identified by the use of words such as ‘may’, ‘would’, ‘could’, ‘will’, ‘intend’, ‘expect’, ‘believe’, ‘plan’, ‘anticipate’, ‘estimate’, ‘scheduled’, ‘forecast’, ‘predict’ and other similar terminology, or state that certain actions, events or results ‘may’, ‘could’, ‘would’, ‘might’ or ‘will’ be taken, occur or be achieved. These statements reflect the company’s current expectations regarding future events, performance and results and speak only as of the date of this release.

Forward-looking statements and information contained herein are based on certain factors and assumptions regarding, among other things, the estimation of mineral resources and reserves, the realization of resource and reserve estimates, metal prices, taxation, the estimation, timing and amount of future exploration and development, capital and operating costs, the availability of financing, the receipt of regulatory approvals, environmental risks, title disputes and other matters. While the Company considers its assumptions to be reasonable as of the date hereof, forward-looking statements and information are not guarantees of future performance and readers should not place undue importance on such statements as actual events and results may differ materially from those described herein. The Company does not undertake to update any forward-looking statements or information except as may be required by applicable securities laws.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/272353

Saga Metals Corp. (‘SAGA’ or the ‘Company’) (TSXV: SAGA,OTC:SAGMF) (OTCQB: SAGMF) (FSE: 20H), a North American exploration company advancing critical mineral discoveries, is pleased to confirm the full mobilization of exploration crews and equipment for its highly anticipated major diamond drill program at the 100% owned Radar Titanium-Vanadium-Iron (Ti-V-Fe) Project in southeastern Labrador, Canada.

With site preparations now in the final stages of completion, SAGA is ready to mobilize the rest of its exploration team as drilling is set to commence in early November, targeting the expansion of known oxide mineralization at the Radar project and advancing toward a maiden mineral resource estimate (MRE) over the Trapper Zone.

This major program represents a key milestone in delineating the project’s potential as a strategic domestic source of titanium, vanadium, and high-grade iron ore—minerals critical for defense, aerospace, renewable energy storage, and advanced steel production.

Figure 1: Radar Project’s Trapper Zone depicting a 3+ km Total Magnetic Intensity (TMI) anomaly from the 2025 ground survey and the oxide layering trend. The Trapper Trail (in black) will be the target of the planned 15,000 m diamond drilling program aimed at establishing Saga’s maiden mineral resource estimation.

Final Camp and Equipment Preparations:

With the geologists and drilling team set to arrive in the coming days, SAGA’s on-site team is working through the final stages of camp preparations including personnel and kitchen trailer placement as well as furnishing a full core shack, cutting shack and logging facility.

Figure 2: Brandon Sainsbury and Saga Technicians building core facility in Cartwright

Figure 3: Saga’s team from Cartwright preparing the metal core racks on site.

Meanwhile, the Gladiator Drilling crew from Springdale, Newfoundland has been doing final checks and maintenance on the Duralite 800 drill and associated equipment. They are currently packing up and loading the trailers for mobilization.

Figure 4: Gladiator Drilling team finalizing drill maintenance prior to mobilization to the Radar Project

‘The Gladiator crew is busy at the shop today getting ready for the upcoming drill program for Saga Metals in Labrador,’ stated Josh Blundell, CEO of Gladiator Drilling. ‘We are incredibly privileged and excited about being part of the team with Saga Metals and drilling the Trapper zone at the Radar Project. We had great success drilling the Hawkeye zone earlier this year and look forward to doing what we do best once again, putting rocks in the box.’

Drill Program Objectives:

The Phase 1 Trapper Zone drill campaign will target:

• Grade continuity across a 3 km strike length.
• Oxide layering widths and continuity to depths of about 200 metres.
• Integration of structural insights from trenching and drilling into collar orientation and drill design.
• Initial drilling of 1,500-2,500 m in 6-10 holes, each about 250 m in depth will be completed before the December break.
• Test both the North and South sections of the Trapper zone prior to the break in order to fully grasp grade, width and structure prior to initiating the detailed grid and drill sections in 2026 for the purposes of a mineral resource estimate.
• Drilling will be complemented by metallurgical sampling through the winter, with core from both the Hawkeye and Trapper zones undergoing detailed metallurgical testing.

Figure 5: Trapper base map – Oriented to base line in which 100-meter drill sections have been laid out across the Trapper Zone, perpendicular to the magnetite-oxide layers (seen above as magnetic highs on TMI anomaly from the 2025 ground survey ).

Outlook on Phase 1 of Drilling at the Trapper Zone:

Phase 1 drilling at the Trapper Zone builds on significant milestones from 2025, including:

• Hawkeye drilling success: maiden drill program in early 2025, featuring a 2,209-metre, seven-hole diamond drill campaign across the Hawkeye Zone. The program intersected broad zones of titanomagnetite-rich oxide layering, with cumulative intersections displaying consistent grades of titanium dioxide (TiO ₂ ), vanadium pentoxide (V ₂ O ₅ ) and iron (Fe).
• Metallurgical readiness: Ongoing petrographic and mineralogical studies by Dr. Al Miller confirm those primary magmatic textures favourable for downstream processing.
• Exploration momentum: Expanded property vision with preliminary metallurgical insights and confirmation of large-scale oxide continuity across the Dykes River intrusive complex.

Together, these achievements support SAGA’s strategy of advancing Radar toward resource definition and positioning it as a potential cornerstone critical minerals project in North America.

Advancing the Radar Project

The Radar Property spans 24,175 hectares and hosts the entire Dykes River intrusive complex (~160 km²), a unique position among Western explorers. Geological mapping, geophysics, and trenching have already confirmed oxide layering across more than 20 km of strike length, with mineralization open for expansion.

Vanadiferous titanomagnetite (‘VTM’) mineralization at Radar is comparable to global Fe–Ti–V systems such as Panzhihua (China), Bushveld (South Africa), and Tellnes (Norway), positioning the Project as a potential strategic future supplier of titanium, vanadium, and iron to North American markets.

Figure 6: Radar Property map, depicting magnetic anomalies, oxide layering and the site of the 2025 drill program in the Hawkeye zone. The Property is well serviced by road access and is conveniently located near the town of Cartwright, Labrador. A compilation of historical aeromagnetic anomalies is overlaid by ground-based geophysics as shown. SAGA has demonstrated the reliability of the regional airborne magnetic surveys after ground-truthing and drilling in the 2024 and 2025 field programs.

‘With the final team members mobilizing and the Gladiator drill rigs ready for the Trapper Zone, we’re on the cusp of transforming Radar from discovery to resource. The 3+ km oxide trend we’ve sampled and trenched is now ready for systematic drilling, and Phase 1 will give us the grade, width, and structural clarity needed to design the full 15,000-metre grid for our maiden MRE in 2026. The camp is built, the core shack is furnished, and the community of Cartwright has been our biggest supporter since day one. This is execution season for SAGA, and we look forward to providing updates along the way,’ stated Michael Garagan, CGO & Director of SAGA .

Investor Relations Agreements

SAGA has re-engaged Think Ink Marketing Data & Email Services (‘ Think Ink ‘) to provide corporate awareness and digital marketing services commencing on November 1, 2025.

Think Ink will leverage its expertise in native and display advertising, video content distribution, social media coverage, and targeted email marketing to enhance the Company’s digital presence and expand market awareness in exchange for cash consideration in the amount of USD$100,000. The IR Agreement has an initial term of 31 days unless earlier terminated or renewed in accordance with its terms. The Company may renew the IR Agreement for successive 31-day periods upon providing notice to Think Ink.

Compensation to Think Ink does not include any securities of the Company, and Think Ink does not hold any interest, directly or indirectly, in the Company. Think Ink is at arm’s length to the Company and has no relationship with the Company outside of this engagement.

Think Ink Data & Email Services, Inc., is a California-based marketing firm established in 1991 that provides its customers with a complete range of marketing services that span both digital and direct mail venues. With its digital services ranging from data appending, email marketing and pay-per-click online banner and native ads, Think Ink helps its clients to reach a network of potential investors.

For further information about Think Ink Marketing, please contact: Claire Stevens, 310-760-2616, 3308 W. Warner Ave, Santa Ana CA 92704, Email claire@thinkinkmarketing.com .

Qualified Person

Paul J. McGuigan, P. Geo., is an Independent Qualified Person as defined under National Instrument 43-101 and has reviewed and approved the technical information disclosed in this news release.

About Saga Metals Corp.

Saga Metals Corp. is a North American mining company focused on the exploration and discovery of a diversified suite of critical minerals that support the global transition to green energy. The Radar Titanium Project comprises 24,175 hectares and entirely encloses the Dykes River intrusive complex, mapped at 160 km² on the surface near Cartwright, Labrador. Exploration to date, including a 2,200m drill program, has confirmed a large and mineralized layered mafic intrusion hosting vanadiferous titanomagnetite (VTM) with strong grades of titanium and vanadium.

The Double Mer Uranium Project, also in Labrador, covers 25,600 hectares featuring uranium radiometrics that highlight an 18km east-west trend, with a confirmed 14km section producing samples as high as 0.428% U ₃ O ₈ and uranium uranophane was identified in several areas of highest radiometric response (2024 Double Mer Technical Report).

Additionally, SAGA owns the Legacy Lithium Property in Quebec’s Eeyou Istchee James Bay region. This project, developed in partnership with Rio Tinto, has been expanded through the acquisition of the Amirault Lithium Project. Together, these properties cover 65,849 hectares and share significant geological continuity with other major players in the area, including Rio Tinto, Winsome Resources, Azimut Exploration, and Loyal Metals.

With a portfolio that spans key minerals crucial to the green energy transition, SAGA is strategically positioned to play an essential role in the clean energy future.

On Behalf of the Board of Directors
Mike Stier, Chief Executive Officer

For more information, contact:
Rob Guzman, Investor Relations
Saga Metals Corp.
Tel: +1 (844) 724-2638
Email: rob@sagametals.com
www.sagametals.com

Neither the TSX Venture Exchange nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Disclaimer

This news release contains forward-looking statements within the meaning of applicable securities laws that are not historical facts. Forward-looking statements are often identified by terms such as ‘will’, ‘may’, ‘should’, ‘anticipates’, ‘expects’, ‘believes’, and similar expressions or the negative of these words or other comparable terminology. All statements other than statements of historical fact, included in this release are forward-looking statements that involve risks and uncertainties. In particular, this news release contains forward-looking information pertaining to the exploration of the Company’s Radar Project. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company’s expectations include, but are not limited to, changes in the state of equity and debt markets, fluctuations in commodity prices, delays in obtaining required regulatory or governmental approvals, environmental risks, limitations on insurance coverage, inherent risks and uncertainties involved in the mineral exploration and development industry, particularly given the early-stage nature of the Company’s assets, and the risks detailed in the Company’s continuous disclosure filings with securities regulations from time to time, available under its SEDAR+ profile at www.sedarplus.ca. The reader is cautioned that assumptions used in the preparation of any forward-looking information may prove to be incorrect. Events or circumstances may cause actual results to differ materially from those predicted, as a result of numerous known and unknown risks, uncertainties, and other factors, many of which are beyond the control of the Company. The reader is cautioned not to place undue reliance on any forward-looking information. Such information, although considered reasonable by management at the time of preparation, may prove to be incorrect and actual results may differ materially from those anticipated. Forward-looking statements contained in this news release are expressly qualified by this cautionary statement. The forward-looking statements contained in this news release are made as of the date of this news release and the Company will update or revise publicly any of the included forward-looking statements only as expressly required by applicable law.

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(TheNewswire)

Brossard, Quebec TheNewswire – le 28 octobre 2025 CORPORATION CHARBONE (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (« CHARBONE » ou la « Société »), un producteur et distributeur nord-américain spécialisé dans l’hydrogène propre Ultra Haute Pureté (« UHP ») et les gaz industriels stratégiques, a le plaisir d’annoncer que les travaux de construction civil ont officiellement débuté hier, le 27 octobre 2025 sur le site de Sorel-Tracy, conformément à l’échéancier présenté dans le communiqué du 22 octobre dernier .

Ce jalon marque le lancement concret de la phase de construction du premier module de production d’hydrogène propre UHP de CHARBONE au Québec. Les travaux visent la préparation complète des infrastructures techniques et la mise en place des fondations nécessaires à la réinstallation des équipements principaux, dont la livraison avait été complétée avec succès plus tôt ce mois-ci.

« Nous sommes très fiers de voir le projet progresser exactement selon le plan établi , grâce à l’engagement exceptionnel de nos équipes et de nos partenaires , » a déclaré Dave B. Gagnon, PDG de CHARBONE . « Le début des travaux civils concrétise notre vision d’une production locale et décarbonée d’hydrogène propre UHP au Québec. Chaque étape franchie nous rapproche de la mise en service prévue en novembre et du déploiement de notre modèle modulaire . »

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À propos de CORPORATION CHARBONE

CHARBONE est une entreprise intégrée spécialisée dans l’hydrogène propre Ultra Haute Pureté (UHP) et la distribution stratégique de gaz industriels en Amérique du Nord et en Asie-Pacifique. Elle développe un réseau modulaire de production d’hydrogène vert tout en s’associant à des partenaires de l’industrie pour offrir de l’hélium et d’autres gaz spécialisés sans avoir à construire de nouvelles usines coûteuses. Cette stratégie disciplinée diversifie les revenus, réduit les risques et augmente sa flexibilité. Le groupe Charbone est coté en bourse en Amérique du Nord et en Europe sur la bourse de croissance TSX (TSXV: CH,OTC:CHHYF) ; sur les marchés OTC (OTCQB: CHHYF) ; et à la Bourse de Francfort (FSE: K47) . Pour plus d’informations, visiter www.charbone.com .

Énoncés prospectifs

Le présent communiqué de presse contient des énoncés qui constituent de « l’information prospective » au sens des lois canadiennes sur les valeurs mobilières (« déclarations prospectives »). Ces déclarations prospectives sont souvent identifiées par des mots tels que « a l’intention », « anticipe », « s’attend à », « croit », « planifie », « probable », ou des mots similaires. Les déclarations prospectives reflètent les attentes, estimations ou projections respectives de la direction de Charbone concernant les résultats ou événements futurs, sur la base des opinions, hypothèses et estimations considérées comme raisonnables par la direction à la date à laquelle les déclarations sont faites. Bien que Charbone estime que les attentes exprimées dans les déclarations prospectives sont raisonnables, les déclarations prospectives comportent des risques et des incertitudes, et il ne faut pas se fier indûment aux déclarations prospectives, car des facteurs inconnus ou imprévisibles pourraient faire en sorte que les résultats réels soient sensiblement différents de ceux exprimés dans les déclarations prospectives. Des risques et des incertitudes liés aux activités de Charbone peuvent avoir une incidence sur les déclarations prospectives. Ces risques, incertitudes et hypothèses comprennent, sans s’y limiter, ceux décrits à la rubrique « Facteurs de risque » dans la déclaration de changement à l’inscription de la Société datée du 31 mars 2022, qui peut être consultée sur SEDAR à l’adresse www.sedar.com; ils pourraient faire en sorte que les événements ou les résultats réels diffèrent sensiblement de ceux prévus dans les déclarations prospectives.

Sauf si les lois sur les valeurs mobilières applicables l’exigent, Charbone ne s’engage pas à mettre à jour ni à réviser les déclarations prospectives.

Ni la Bourse de croissance TSX ni son fournisseur de services de réglementation (tel que ce terme est défini dans les politiques de la Bourse de croissance TSX) n’acceptent de responsabilité quant à la pertinence ou à l’exactitude du présent communiqué.

Pour contacter Corporation Charbone :

Copyright (c) 2025 TheNewswire – All rights reserved.

(TheNewswire)

Brossard, Quebec TheNewswire – October 28, 2025 CHARBONE CORPORATION (TSXV: CH,OTC:CHHYF; OTCQB: CHHYF; FSE: K47) (‘ CHARBONE ‘ or the ‘ Company ‘), a North American producer and distributor specializing in clean Ultra High Purity (‘ UHP ‘) hydrogen and strategic industrial gases, is pleased to announce that civil construction work officially began yesterday, October 27, 2025, at the Sorel-Tracy site in accordance with the timeline presented in the Company’s October 22 press release.

This milestone marks the concrete launch of the construction phase for CHARBONE’s first clean UHP hydrogen production module in Quebec. The work involves the complete preparation of technical infrastructure and the installation of foundations required for the reassembly of the main equipment, the delivery of which was successfully completed earlier this month.

‘ We are extremely proud to see the project progressing exactly according to plan, thanks to the outstanding commitment of our teams and partners ,’ said Dave B. Gagnon, CEO of CHARBONE . ‘ The start of civil construction work brings our vision of local, decarbonized clean UHP hydrogen production in Quebec to life. Each milestone achieved brings us closer to commissioning in November and to the broader deployment of our modular model .’

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About CHARBONE CORPORATION

CHARBONE is an integrated company specializing in clean Ultra High Purity (UHP) hydrogen and the strategic distribution of industrial gases in North America and Asia-Pacific. Through a modular approach, the Company is building a distributed network of green hydrogen production plants while diversifying revenues via helium and specialty gas partnerships. This disciplined model reduces risk, enhances flexibility, and positions CHARBONE as a leader in the transition to a low-carbon future. CHARBONE is listed on the TSX Venture Exchange (TSXV: CH,OTC:CHHYF) , the OTC Markets (OTCQB: CHHYF) , and the Frankfurt Stock Exchange (FSE: K47) . Visit www.charbone.com .

Forward-Looking Statements

This news release contains statements that are ‘forward-looking information’ as defined under Canadian securities laws (‘forward-looking statements’). These forward-looking statements are often identified by words such as ‘intends’, ‘anticipates’, ‘expects’, ‘believes’, ‘plans’, ‘likely’, or similar words. The forward-looking statements reflect management’s expectations, estimates, or projections concerning future results or events, based on the opinions, assumptions and estimates considered reasonable by management at the date the statements are made. Although Charbone believes that the expectations reflected in the forward-looking statements are reasonable, forward-looking statements involve risks and uncertainties, and undue reliance should not be placed on forward-looking statements, as unknown or unpredictable factors could cause actual results to be materially different from those reflected in the forward-looking statements. The forward-looking statements may be affected by risks and uncertainties in the business of Charbone. These risks, uncertainties and assumptions include, but are not limited to, those described under ‘Risk Factors’ in the Corporation’s Filing Statement dated March 31, 2022, which is available on SEDAR at www.sedar.com; they could cause actual events or results to differ materially from those projected in any forward-looking statements.

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release .

Copyright (c) 2025 TheNewswire – All rights reserved.

(TheNewswire)

Highlights:

• Three samples from the mineralized zone within the Pinos Cuates underground mine were sent to the SGS Lab in Durango, Mexico for grinding, bottle roll cyanide leach and gravity tests.

• Initial grind calibration tests in a ball milling application achieved a target grind of 80% passing 270 mesh (53 micron) particle size.

• Average unoptimized reagent consumption was 0.71 kg/t NaCN and 1.62 kg/t CaO, both within expected ranges for a preliminary test.

• Initial gravity tests utilising a Knelson concentrator and Mozley table resulted in variable recoveries ranging from 29.1% to 76.38% for gold and 3.98% to 15.91% for silver.

‘We are very pleased with the results from this preliminary round of metallurgical tests , especially for gold recoveries, and considering that there were only three samples from one of the three historic mines,’ stated Robert Archer, Pinnacle’s President & CEO.  ‘These tests were run using simple baseline parameters and without any optimization.  The results indicate that we need to conduct mineralogical tests on the mineralization to determine the nature of the gold and silver occurrences.  While it is likely that gold occurs either as free particles or in electrum, silver can occur in electrum, silver sulphides or silver sulphosalts.  Once this has been established, further testing will be able to fine tune the metallurgical processes in order to increase recoveries, particularly for silver.  Metallurgical testing is an iterative process, and it is expected that sampling of the other mines on the property will result in further variations.  However, this is the whole point of the testing as we aim to maximize recoveries and streamline the flow sheet prior to rebuilding the plant.’

The Pinos Cuates mine is the central mine of the three historic workings on the Dos de Mayo low sulphidation epithermal vein system at El Potrero.  The three metallurgical samples were taken from the raise and upper level of the mine, based upon the results of previous channel sampling.  Each sample weighed approximately 25 kg.  Samples were fire assayed with AAS finish for gold and silver, in duplicate, and analysed for 32 elements by 4-acid digestion and ICP finish.  The latter confirmed that there are negligible amounts of copper, lead, zinc, arsenic, mercury or any other deleterious elements present.  Some variation between gold analyses of the channel samples versus the metallurgical samples suggests the presence of a nugget effect, likely due to fine free gold, as silver analyses were comparable.  A comparison of the two sets of analyses can be seen in the table below:

Prior to the bottle leaching tests, a grinding calibration was carried out for each sample using a ball mill in order to achieve the target particle size for the leaching and gravity concentration tests, which was 80% passing 270 mesh (53 microns).  This information will be used in future tests on hardness and work index.

A bottle roll test was carried out for each sample, separately from the gravity test, in order to evaluate the gold and silver extraction response for each method.  The bottle roll test was performed in a 2-gallon Nalgene bottle, using 1,000 g of sample, with a retention time of 72 hours.  Monitoring was conducted at intervals of 12, 24, 48, and 72 hours to collect solution samples and evaluate the gold and silver extraction kinetics.  Additionally, sodium cyanide and lime consumptions were determined.

Dissolution kinetics showed rapid recoveries of 79-92% for gold after only 24 hours, increasing gradually to their ultimate levels of 92.81%, 95.68% and 96.79%, averaging 95.09%, after 72 hours.  Silver recoveries increased more gradually towards 41.41%, 73.53% and 49.11%, with an average of 54.68%, after 72 hours.  It is considered that a longer leach time could improve the silver recoveries.

Sodium cyanide (NaCN) consumption ranged from 0.49 to 0.94 kg/t, while lime (CaO) consumption ranged from 0.93 to 2.03 kg/t, both within expected ranges for unoptimized tests.

According to the SGS report, ‘Gravity concentration using the Knelson concentrator is based on the separation of mineral particles according to their density differences, applying centrifugal force. This equipment concentrates the heavy minerals (such as free gold or high-density sulfides) into a small volume of concentrate, while the lighter material is discharged as tailings.

The concentrate obtained from the Knelson is subsequently subjected to cleaning on a Mozley table, which allows for a finer and more selective separation. This stage improves the purity of the final concentrate by removing gangue minerals and obtaining a fraction richer in valuable minerals.

For metallurgical balance purposes, the sum of the Knelson concentrate and the Mozley ‘middlings’ is necessary, since both products belong to the same gravity concentration stream and contain a significant portion of the recovered metallic values. Combining these products provides a more accurate representation of the total recovery attributable to the gravity circuit, preventing underestimation of the metallic content in the overall balance.’

Approximately 20 kg of each sample with a particle size of 53 microns was used for the gravity tests.  Gold recoveries were somewhat variable, yielding 29.10%, 33.02% and 76.38%, whereas silver was a little more consistent, albeit lower, with recoveries of 3.98%, 7.77% and 15.31%.  As gold is heavier than silver, it is normal for gold to yield higher recoveries in a gravity circuit.  The particularly high gold recoveries of 76.38% in one sample is likely due to the presence of a higher percentage of free gold.  It is worth noting that this sample also had the highest head assay of 17.2 g/t Au and the highest recovery from leaching of 96.79%.

In subsequent metallurgical work, gravity and leaching tests will likely be conducted in series, with the high-grade gravity concentrate being removed and the tails being leached.  While it is normal for higher grade material to yield higher recoveries, it is also considered that a finer grind and extended leach times may improve recoveries at the lower end.  These along with other optimized process details will be addressed in the next testing stage.

Qualified Person

Mr. David Salari, P.Eng., a Director of Pinnacle and a Qualified Person as defined by National Instrument 43-101, has reviewed and approved this news release.

Mr. Jorge Ortega, P. Geo, a Qualified Person as defined by National Instrument 43-101, and the author of the NI 43-101 Technical Report for the Potrero Project, has also reviewed and approved this news release.

About the Potrero Property

El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies within 35 kilometres of four operating mines, including the 4,000 tonnes per day (tpd) Ciénega Mine (Fresnillo), the 1,000 tpd Tahuehueto Mine (Luca Mining) and the 250 tpd Topia Mine (Guanajuato Silver).

High-grade gold-silver mineralization occurs in a low sulphidation epithermal breccia vein system hosted within andesites of the Lower Volcanic Series and has three historic mines along a 500 metre strike length.  The property has been in private hands for almost 40 years and has never been systematically explored by modern methods, leaving significant exploration potential.

A previously operational 100 tpd plant on site can be refurbished / rebuilt and historic underground mine workings rehabilitated at relatively low cost in order to achieve near-term production once permits are in place. The property is road accessible with a power line within three kilometres.  Surface rights covering the plant and mine area are privately owned (no community issues).

Pinnacle will earn an initial 50% interest immediately upon commencing production.  The goal would then be to generate sufficient cash flow with which to further develop the project and increase the Company’s ownership to 100% subject to a 2% NSR.  If successful, this approach would be less dilutive for shareholders than relying on the equity markets to finance the growth of the Company.

About Pinnacle Silver and Gold Corp.

Pinnacle is focused on the development of precious metals projects in the Americas.  The high-grade Potrero gold-silver project in Mexico’s Sierra Madre Belt hosts an underexplored low-sulphidation epithermal vein system and provides the potential for near-term production . In the prolific Red Lake District of northwestern Ontario, the Company owns a 100% interest in the past-producing, high-grade Argosy Gold Mine and the adjacent North Birch Project with an eight-kilometre-long target horizon . With a seasoned, highly successful management team and quality projects, Pinnacle Silver and Gold is committed to building long -term , sustainable value for shareholders.

Signed: ‘Robert A. Archer’

President & CEO

For further information contact :

Email: info@pinnaclesilverandgold.com

Tel.:  +1 (877) 271-5886 ext. 110

Website: www.pinnaclesilverandgold.com

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