Tocvan Announces Initial Findings From Drone Magnetic Survey At Gran Pilar Gold-Silver Project: Discovery Of Structural Complex In South Block Aligns With Permitted Drill Targets

Rhea-AI Summary

Tocvan (OTCQB:TCVNF) announced preliminary results from a drone magnetic survey at the Gran Pilar gold‑silver project in Sonora, Mexico dated October 7, 2025. The 224‑line‑km survey identified a 2.0 x 2.5 km structural complex in the South Block that aligns with anomalous surface assays (up to 21.2 g/t Au and >2,000 g/t Ag). Magnetic highs suggest a possible magmatic heat source beneath correlated high‑grade geochemistry. The company is integrating the full dataset, continuing surface sampling, and expects trenching and permitted drilling to start shortly on 100% controlled targets.

Positive

• Drone magnetic survey covered 224 line kilometers
• Structural corridor mapped over 2.0 x 2.5 km
• Surface assays up to 21.2 g/t Au and >2,000 g/t Ag
• Metallurgical tests: 95–99% Au recovery on composites

Negative

• Pilar bulk sample gold recovery 62% over 46 days
• Bulk sample included only the coarse fraction
• Several geophysical anomalies remain untested/mapped

CALGARY, AB, BC / ACCESS Newswire / October 7, 2025 / Tocvan Ventures Corp. ("Tocvan" or the "Company") (CSE:TOC)(OTCQB:TCVNF)(WKN:TV3/A2PE64), a leading exploration and near-term producer focused on gold and silver projects in Sonora, Mexico, is pleased to announce the preliminary results from its ongoing drone-based airborne magnetic survey at the Gran Pilar Gold-Silver Project in Sonora, Mexico. The survey has identified a significant structural complex in the South Block, which shows strong correlation with anomalous surface geochemistry, highlighting new high-priority targets for upcoming fully permitted drilling and exploration activities.

The drone magnetic survey, covering approximately 224-line kilometers, was designed to map subsurface geological structures and potential mineralization zones across the expansive Gran Pilar property. Key findings include:

• Identification of a Structural Complex: A prominent structural corridor, characterized by intersecting fault zones across the South Block. This complex extends over a 2.0 by 2.5-kilometer area and exhibits magnetic signatures indicative of magmatic activity potentially tied to mineralization.

• Correlation with Surface Geochemistry: The newly identified structures align closely with previously reported surface rock and soil samples showing elevated gold and silver values, including assays up to 21.2 g/t Au and >2,000 g/t Ag from earlier sampling programs. This correlation suggests the potential for deeper-seated mineralization, enhancing the prospectivity of the area for epithermal gold-silver deposits.

• Expansion of Target Areas: The survey data has refined existing targets and generated several new ones, including extensions to the known Placer Corridor in the South Block, where placer gold mining has historically occurred. There remain several geophysical anomalies to the east and southeast that have not been mapped or sampled.

Video Link Here: Magnetics Update

"We are thrilled with the early outcomes of this drone magnetic survey, which not only validates our geological model but also uncovers exciting new opportunities in the underexplored South Block," said Brodie Sutherland, CEO of Tocvan. "The strong alignment between the magnetic anomalies and our surface geochemistry data underscores the potential for significant discoveries at Gran Pilar. This positions us well to advance our exploration efforts and move closer to realizing the project's full value for our shareholders."

Figures 1 & 2. Upper, First Vertical Derivative (1VD) map of magnetic data with geochemistry. The magnetics are filtered to show near to surface anomalies with major faults and structures associated with lows (blues). Magnetic highs (violet) are associated with magnetite-rich areas tied to magmatic activity (heat drivers for mineralization). The map outlines a 2x2.5 km prospective area. Lower, Total Magnetic Field Reduced to Pole (TMI-RTP) map with geochemistry. A large magnetic high (violet) lies in the centre of the area and correlates to anomalous gold and silver values that potential signals a magmatic centre or heat driving source underneath. The surrounding lows are associated with structural features and alteration connected to epithermal mineralization.

The Company is currently processing the full dataset as additional data is acquired for the North Block and integrating it with existing geophysical, geological, and geochemical information to prioritize drill targets. Surface sampling is underway, with drilling and trenching expected to commence shortly. Tocvan remains committed to a systematic approach to exploration, leveraging advanced technologies to minimize environmental impact while maximizing discovery potential.

Tocvan remains well-positioned with a strong balance sheet and a dedicated team of local experts to execute this program efficiently. Work planned will be conducted on 100% controlled ground. The Company will provide updates as results become available.

100% CONTROLLED PRIORITY TARGETS FOR TRENCHING & DRILLING

1. South Block Main Zone Expansion

   1. Follow-up on 2025 Drill Success

      1. 19.4 g/t Au over 3.1 meters within 106.6 meters of 0.6 g/t Au (February 25, 2025 News Release)

      2. 5.4 g/t Au over 6.1 meters within 41.2 meters of 1.0 g/t Au (May 7, 2025 News Release)

      3. 136 g/t Ag over 10.7 meters within 42.7 meters of 41 g/t Ag (June 25, 2025 News Release)

2. South Block (November 12, 2024 News Release)

   1. Placer Corridor (900-meter strike length)

      1. Soil samples up to 21.2 g/t Au and >2,000 g/t

   2. Placer Source Area

      1. Soil samples up to 2.4 g/t Au and 22 g/t Ag

      2. Rock samples up to 7.3 g/t Au and 389 g/t Ag

3. North Block

   1. North Alteration Zone (3.2 km by 1.5 km area)

      1. 2-meter chip sample, 5.6 g/t Au and 106 g/t Ag (October 19, 2023 News Release)

      2. Historic mine working sample, 3.2 g/t Au and 1,225 g/t Ag (March 8, 2024 News Release)

Figure 3. Gran Pilar Project Overview, > 22km² of prospective ground with two primary targets: South Block, the direct extension and expansion of the historic Main Zone defined by an expanding vein field of untested drill targets; North Block a 3.2-km by 1.5-km pyrite and clay alteration zone that coincides with high-grade gold-silver, the area remains largely untested

Gran Pilar Drill Highlights:

• 2025 Diamond Drilling Highlights include:

  • 83.5m @ 1.3 g/t Au, including 9.7m @ 10.3 g/t Au (March 11, 2025 News Release)

  • 97.4m @ 0.7 g/t Au, including 36.3m @ 1.6 g/t Au (March 19, 2025 News Release)

  • 64.9m @ 1.2 g/t Au, including 3.0m @ 21.6 g/t Au and 209 g/t Ag (March 26, 2025 News Release)

  • 46.9m @ 0.5 g/t Au, including 2.6m @ 7.2 g/t Au and 80 g/t Ag (April 16, 2025 News Release)

• 2025 RC Drilling Highlights include:

  • 106.8m @ 0.6 g/t Au, including 3.1m @ 19.4 g/t Au (February 25, 2025 News Release)

  • 41.2m @ 1.0 g/t Au, including 6.1m @ 5.4 g/t Au (May 7, 2025 News Release)

• 2024 RC Drilling Highlights include (all lengths are drilled thicknesses):

  • 42.7m @ 1.0 g/t Au, including 3.1m @ 10.9 g/t Au

  • 56.4m @ 1.0 g/t Au, including 3.1m @ 14.7 g/t Au

  • 16.8m @ 0.8 g/t Au and 19 g/t Ag

• 2022 Phase III Diamond Drilling Highlights include (all lengths are drilled thicknesses):

  • 116.9m @ 1.2 g/t Au, including 10.2m @ 12 g/t Au and 23 g/t Ag

  • 108.9m @ 0.8 g/t Au, including 9.4m @ 7.6 g/t Au and 5 g/t Ag

  • 63.4m @ 0.6 g/t Au and 11 g/t Ag, including 29.9m @ 0.9 g/t Au and 18 g/t Ag

• 2021 Phase II RC Drilling Highlights include (all lengths are drilled thicknesses):

  • 39.7m @ 1.0 g/t Au, including 1.5m @ 14.6 g/t Au

  • 47.7m @ 0.7 g/t Au including 3m @ 5.6 g/t Au and 22 g/t Ag

  • 29m @ 0.7 g/t Au

  • 35.1m @ 0.7 g/t Au

• 2020 Phase I RC Drilling Highlights include (all lengths are drilled thicknesses):

  • 94.6m @ 1.6 g/t Au, including 9.2m @ 10.8 g/t Au and 38 g/t Ag;

  • 41.2m @ 1.1 g/t Au, including 3.1m @ 6.0 g/t Au and 12 g/t Ag ;

  • 24.4m @ 2.5 g/t Au and 73 g/t Ag, including 1.5m @ 33.4 g/t Au and 1,090 g/t Ag

• 15,000m of Historic Core & RC drilling. Highlights include:

  • 61.0m @ 0.8 g/t Au

  • 21.0m @ 38.3 g/t Au and 38 g/t Ag

  • 13.0m @ 9.6 g/t Au

  • 9.0m @ 10.2 g/t Au and 46 g/t Ag

Pilar Bulk Sample Summary:

• 62% Recovery of Gold Achieved Over 46-day Leaching Period

• Head Grade Calculated at 1.9 g/t Au and 7 g/t Ag; Extracted Grade Calculated at 1.2 g/t Au and 3 g/t Ag

• Bulk Sample Only Included Coarse Fraction of Material (+3/4" to +1/8")

• Fine Fraction (-1/8") Indicates Rapid Recovery with Agitated Leach

  • Agitated Bottle Roll Test Returned Rapid and High Recovery Results: 80% Recovery of Gold and 94% Recovery of Silver after Rapid 24-hour Retention Time

Additional Metallurgical Studies:

• Gravity Recovery with Agitated Leach Results of Five Composite Samples Returned

  • 95 to 99% Recovery of Gold

  • 73 to 97% Recovery of Silver

  • Includes the Recovery of 99% Au and 73% Ag from Drill Core Composite at 120-meter depth.

About Tocvan Ventures Corp.

Tocvan Ventures Corp. is a dynamic exploration and near-term producer advancing high-potential gold and silver projects in the mine-friendly jurisdiction of Sonora, Mexico. At its flagship Gran Pilar Gold-Silver Project, Tocvan holds a 100% interest in over 21 km² of prospective ground, bolstered by the pivotal 2023 land acquisition that provides ample space for scalable mine infrastructure, including a planned 50,000-tonne pilot production facility. The Company also maintains a 51% interest in a 1 km² joint venture area with Colibri Resources, further expanding its footprint. Recent exploration successes, including near surface 3.1 meters at 19.4 g/t Au, underscore Gran Pilar's potential as a premier gold-silver asset. Additionally, Tocvan's 100% owned Picacho Gold-Silver Project, located in the prolific Caborca Trend-home to some of Mexico's largest gold deposits-positions the Company for further growth. With robust metallurgical results (up to 99% gold and 97% silver recovery) and a strategic capital to bolster growth, Tocvan is poised to deliver significant shareholder value in a market buoyed by record-high gold prices. With approximately 64 million shares outstanding, Tocvan is committed to unlocking the full potential of its assets through innovative exploration, strategic development, and investor-focused initiatives.

Quality Assurance / Quality Control

Rock and Drill samples were shipped for sample preparation to ALS Limited in Hermosillo, Sonora, Mexico and for analysis at the ALS laboratory in North Vancouver. The ALS Hermosillo and North Vancouver facilities are ISO 9001 and ISO/IEC 17025 certified. Gold was analyzed using 50-gram nominal weight fire assay with atomic absorption spectroscopy finish. Over limits for gold (>10 g/t), were analyzed using fire assay with a gravimetric finish. Silver and other elements were analyzed using a four-acid digestion with an ICP finish. Over limit analyses for silver (>100 g/t) were re-assayed using an ore-grade four-acid digestion with ICP-AES finish. Control samples comprising certified reference samples and blank samples were systematically inserted into the sample stream and analyzed as part of the Company's robust quality assurance / quality control protocol.

Soil Samples were shipped for sample preparation to ALS Limited in Hermosillo, Sonora, Mexico and for analysis at the ALS laboratory in North Vancouver. The ALS Hermosillo and North Vancouver facilities are ISO 9001 and ISO/IEC 17025 certified. Gold and multi-element analysis of soils was completed by aqua regia digestion and ICP-MS finish using a 50-gram nominal weight. Over limit gold values greater than 1 g/t were re-assayed with a more robust aqua regia digestion ad ICP-MS finish. Over limit analyses for silver (>100 g/t) were re-assayed using an ore-grade four-acid digestion with ICP-AES finish. Control samples comprising blank samples and certified reference materials were systematically inserted into the sample stream and analyzed as part of the Company's robust quality assurance / quality control protocol.

Brodie A. Sutherland, CEO for Tocvan Ventures Corp. and a qualified person ("QP") as defined by Canadian National Instrument 43-101, has reviewed and approved the technical information contained in this release.

Cautionary Statement Regarding Forward Looking Statements

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

This news release contains "forward-looking information" which may include, but is not limited to, statements with respect to the activities, events or developments that the Company expects or anticipates will or may occur in the future. Forward-looking information in this news release includes statements regarding the use of proceeds from the Offering. Such forward-looking information is often, but not always, identified by the use of words and phrases such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", or "believes" or variations (including negative variations) of such words and phrases, or state that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved.

These forward-looking statements, and any assumptions upon which they are based, are made in good faith and reflect our current judgment regarding the direction of our business. Management believes that these assumptions are reasonable. Forward-looking information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information. Such factors include, among others, risks related to the speculative nature of the Company's business, the Company's formative stage of development and the Company's financial position. Forward-looking statements contained herein are made as of the date of this news release and the Company disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results, except as may be required by applicable securities laws.

There can be no assurance that forward-looking information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information.

For more information, please contact:

TOCVAN VENTURES CORP.

Brodie A. Sutherland, CEO
1150, 707 - 7 Ave SW
Calgary, Alberta T2P 3H6
Telephone: 1 888 772 2452
Email: ir@tocvan.ca

STAY CONNECTED:

LinkedIn: TOC LinkedIn
X: TOC X
Facebook: TOC Facebook
YouTube: TOC YouTube
Web: tocvan.com

SOURCE: Tocvan Ventures Corp

View the original press release on ACCESS Newswire

FAQ

What did Tocvan (TCVNF) find in the October 7, 2025 drone magnetic survey?

The survey mapped a 2.0 x 2.5 km structural complex in the South Block that aligns with high‑grade surface geochemistry.

How large was the drone magnetic survey at Gran Pilar reported October 7, 2025?

The survey covered approximately 224 line kilometers of the Gran Pilar property.

Do the new magnetic anomalies at Gran Pilar correlate with gold and silver assays?

Yes; magnetic highs and structural lows correlate with surface assays up to 21.2 g/t Au and >2,000 g/t Ag.

When will Tocvan start drilling the newly prioritized targets at Gran Pilar?

The company said trenching and fully permitted drilling are expected to commence shortly after final data integration and ongoing sampling.

What metallurgical results support Gran Pilar’s recovery potential?

Composite metallurgical tests returned 95–99% gold recovery and 73–97% silver recovery on gravity plus agitated leach tests.

Does the Pilar bulk sample represent full deposit recoveries at Gran Pilar?

No; the Pilar bulk sample reported 62% gold recovery over 46 days and included only the coarse fraction of material.