TOC.CN · 2026-06-02 12:00:00

Tocvan Intersects Three New GOLD-Silver Zones at Gran Pilar Project Exploration Drilling; Provides Pilot MINE Development Update

Drill Results Corporate Updates

TOCVAN INTERSECTS THREE NEW GOLD-SILVER ZONES AT GRAN

PILAR PROJECT EXPLORATION DRILLING; PROVIDES PILOT MINE

DEVELOPMENT UPDATE

EXPANDS SURFACE EXPLORATION PROGRAM

Hermosillo, Mexico – May 28, 2026 – Tocvan Ventures Corp. (the “Company” or “Tocvan”) (CSE: TOC) (OTCQB:

TCVNF) ( WKN: TV3 / A2PE64) is pleased to announce positive drill results from its ongoing 20,000 -meter

exploration program at the 100%- controlled Gran Pilar Gold -Silver Project in Sonora, Mexico. Three new

mineralized zones have been identified in step -out exploration drilling, significantly expanding the known

footprint of the system beyond the Main Zone. To date, Tocvan has completed over 6,200 met ers of the fully

funded 20,000 -meter program. Results from 19 additional drill holes totaling more than 3,800 met ers are

pending and will be released as they become available. The program is focused on resource expansion, new

zone discovery, and definition of high-grade feeder structures on 100% owned ground.

Pilot Program Update

Tocvan continues to advance its pilot mine development at Gran Pilar. The Company has finalized

procurement of the pilot plant equipment and is on track for commissioning in 2026. Significant on- site

infrastructure progress includes the installation of the field office, perimeter fencing , preparation of clays for

the heap leach pad, and ongoing stockpiling of 100% owned material. Site preparation, including road

upgrades and water management infrastructure, is complete. Bulk sampling and metallurgical test work

continue. The pilot program is designed to process up to 50,000 tonnes of material and generate critical data

for future permitting and feasibility studies.

Completed Tasks

 Long-term Community Agreement

 10-year Pilot Facility Permit

 Water monitoring wells

 Condemnation holes

 Soil mechanics

 Land clearing, office and storage

 Perimeter fence (ongoing)

 Initial trenching and stockpiling (ongoing)

 Deposit for processing facility

 Clay-bed for heap leach pad

CSE: TOC | OTCQB: TCVNF | FSE: TV3

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Upcoming Tasks

o Ongoing trenching and stockpiling

o Heap leach pad build

o Containment pond build

o Crushing and stacking

o Processing facility setup and testing

o Full leach operation for gold and silver recovery

o Reporting and analysis for next-stage testing and full-scale optimization

Drill Highlights (New Zones):

New Zone 1 (South Block El Mezquite Trend South): Hole JES-26-134 intersected 3.1 metres of 1.5 g/t Au and 25

g/t Ag from 27.5 metres depth (14 meters vertically from surface), including 1.5 metres of 2.4 g/t Au, 33 g/t Ag

and 5,640 ppm As . Mineralization starts near surface and extends to 48.8 meters downhole depth , with

anomalous mineralization averaging 0.15 g/t Au over 39.7 meters from 9.2 meters depth. This hole extends

mineralization along El Mezquite Trend 1,000 meters south of initial Discovery hole JES -26-135, 1,700 meters

from the Main Zone (see news release April 1, 2026).

New Zone 2 (South Block Mag High Target ): Hole JES -26-139 returned five mineralized zones including 1.5

metres of 0.4 g/t Au and 23 g/t Ag from 125 metres depth, within an ano malous zone of 9.2 metres at 0.12 g/t

Au, 5 g/t Ag and 274 g/t As. This represents the first significant mineralization in a previously untested structural

corridor 1,100 metres east of the Main Zone.

New Zone 3 (South Block New Eastern Trend) Multiple mineralization intersections are reported in holes JES -

26-141, 142 and 143. This represents the first drilling 2,000 -meters northeast of the Main Zone on a ne w trend,

400 meters northeast of the El Mezquite discovery. These holes are also 1,500 meters north and on the same

magnetic trend as new surface target , Bojorquez (see news release May 13, 2026) . JES -26-141 returned

anomalous gold mineralization and alteration from surface down to 39.7 meters, including 4.6 meters of 0.3

g/t Au from 1.5 meters depth and 1.5 meters of 0.5 g/t Au from 38.1 meters depth. JES-26-142 returned

anomalous gold mineralization over 25.1 meters including 1.5 meters of 1.0 g/t Au from 36.6 meters and 3.1

meters of 0.4 g/t Au from 56.4 meters. JES-26-143 returned anomalous gold mineralization over 54.9 meters

from 18.3 meters depth including, 1.5 meters of 0.4 g/t Au from 35.1 meters and 1.5 meters of 0.7 g/t Au from 67.1

meters.

Zones were discovered through aggressive step -out drilling targeting geophysical and surface geochemical

anomalies.

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“These early exploration successes at Gran Pilar, highlighted by the discovery of three new gold- silver

zones, mark an outstanding start to our 2026 program,” commented Brodie Sutherland. “While these

initial drill results are not yet representative of the higher -grade structures we believe occur within the

broader system, they are extremely encouraging given we are stepping out into entirely new areas with

no prior drilling. The results clearly demonstrate that the mineralized footprint at Gran Pilar extend s well

beyond the Main Zone and validate our district-scale exploration model. As is typical in early-stage

discovery drilling, the key objective at this stage is identifying the major structural corridors and

alteration systems that can host stronger gold grades as we refine our targeting. With over 6,200 metres

drilled to date and results pending from an additional 19 holes, we believe we are building significant

momentum across the district.”

“We are equally excited about the rapid progress on our pilot plant build, where the field office is now

installed, perimeter fencing is going up, clays for the heap leach pad have been prepped, and stockpiling

of 100%-owned material is well underway-all setting the stage for commissioning later this year and

near-term pilot-scale production.”

Surface Exploration Expanded

Concurrent with drilling, the Company has expanded its surface exploration program across the North and

South Blocks. Over 4 00 new rock and soil samples have been collected, extending geochemical coverage

across most of the South Block . Multiple high-priority targets have been identified, including a 1.2 -kilometre-

long gold-in-soil anomaly coincident with a strong magnetic low in the South Block. Follow- up mapping and

geophysical interpretation are scheduled for Q3 2026 to refine additional drill targets.

Figure 1. South Block highlighting new target areas.

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Table 1. Summary of Drillhole results in this news release. As this is first pass

reconnaissance drilling, true drill widths are unknown at this time.

Hole ID From

(m)

Interval

(m)

(g/t)

(ppm)

JES-26-134 18.30 19.83 1.53 0.06 4.1 205 31 211 86

JES-26-134 27.45 28.98 1.53 0.65 16.4 162 1265 2270 1615

JES-26-134 28.98 30.50 1.53 2.38 33.1 117 2330 1770 5640

JES-26-134 47.28 48.80 1.53 0.45 0.7 3 179 82 79

JES-26-134 73.20 74.73 1.52 0.25 0.6 11 49 190 597

JES-26-134 96.08 97.60 1.52 0.20 1.1 25 91 151 520

JES-26-134 141.83 143.35 1.53 0.16 1.4 21 105 96 1245

JES-26-134 143.35 144.88 1.53 0.01 6.5 48 374 447 90

JES-26-134 144.88 146.40 1.53 0.03 21.2 580 4700 6750 59

JES-26-136 9.15 10.68 1.53 0.13 0.5 19 19 121 345

JES-26-139 7.63 9.15 1.53 0.19 2.7 21 513 881 1335

JES-26-139 21.35 22.88 1.53 0.17 0.9 13 114 224 38

JES-26-139 22.88 24.40 1.53 0.16 0.5 5 77 178 37

JES-26-139 94.55 96.08 1.53 0.12 1.3 24 173 471 196

JES-26-139 117.43 118.95 1.53 0.13 0.5 26 49 138 25

JES-26-139 123.53 125.05 1.52 0.07 4.8 29 1120 983 114

JES-26-139 125.05 126.58 1.53 0.44 22.5 180 4000 5960 1405

JES-26-139 167.75 169.28 1.53 0.10 0.3 4 84 190 31

JES-26-141 1.53 3.05 1.53 0.13 0.8 20 98 153 105

JES-26-141 3.05 4.58 1.53 0.42 2.0 24 319 247 152

JES-26-141 4.58 6.10 1.53 0.31 1.5 12 132 223 279

JES-26-141 33.55 35.08 1.53 0.11 0.6 18 104 161 123

JES-26-141 35.08 36.60 1.53 0.03 0.8 22 89 158 91

JES-26-141 36.60 38.13 1.53 0.02 1.2 74 102 87 112

JES-26-141 38.13 39.65 1.53 0.51 1.2 35 205 66 295

JES-26-142 36.60 38.13 1.53 0.96 7.5 57 387 1135 580

JES-26-142 48.80 50.33 1.53 0.12 0.7 14 38 186 56

JES-26-142 56.43 57.95 1.53 0.29 2.3 55 155 366 87

JES-26-142 57.95 59.48 1.53 0.50 1.4 22 355 464 141

JES-26-143 24.40 25.93 1.53 0.25 1.6 19 248 492 45

JES-26-143 33.55 35.08 1.53 0.11 1.1 53 133 199 45

JES-26-143 35.08 36.60 1.53 0.38 0.8 16 95 167 58

JES-26-143 39.65 41.18 1.53 0.29 2.6 43 389 348 178

JES-26-143 45.75 47.28 1.53 0.17 10.7 31 3060 311 285

JES-26-143 67.10 68.63 1.53 0.69 0.7 17 211 278 34

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Table 2. Summary of Drillholes in this news release.

Collar Easting Northing Elevation (m) Azimuth Dip Depth

JES-26-134 619086 3144188 509 310 -45 199.8

JES-26-136 618594 3145301 466 115 -45 199.8

JES-26-139 618489 3144263 457 154 -45 199.8

JES-26-141 619397 3145418 428 200 -45 250.1

JES-26-142 619438 3145347 431 220 -45 250.1

JES-26-143 619387 3145499 426 45 -45 154.0

JES-26-144 619380 3145500 426 220 -40 259.5

Photo 1: 6-hectare area cleared for permitted 10-year pilot facility.

Photo 2: Onsite office installation.

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Photo 3: Onsite fuel storage for pilot equipment and drilling.

Photo 4 and 5: Stockpiled material from recent trenching.

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Figure 2. Gran Pilar target summary. Drone magnetic survey map showing tilt derivative of the

Reduced to Pole (RTP) and priority target areas identified to date by geological mapping and

surface geochemistry. Location of the new El Mezquite target area.

The Gran Pilar Project, Sonora, Mexico

100% CONTROLLED PRIORITY TARGETS FOR TRENCHING & DRILLING

1. South Block Main Zone Expansion

a. Follow-up on 2025 Drill Success

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

Release)

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

iii. 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)

a. Placer Corridor (900-meter strike length)

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

b. Placer Source Area

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

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

3. North Block

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

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

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

Gran Pilar Drill Highlights:

• 2025 Diamond Drilling Highlights include:

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

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

o 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)

o 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:

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

o 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):

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

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

o 16.8m @ 0.8 g/t Au and 19 g/t Ag

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

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

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

o 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):

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

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

o 29m @ 0.7 g/t Au

o 35.1m @ 0.7 g/t Au

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

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

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

o 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:

o 61.0m @ 0.8 g/t Au

o 21.0m @ 38.3 g/t Au and 38 g/t Ag

o 13.0m @ 9.6 g/t Au

o 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

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