Announcement • Sep 12

Tocvan Ventures Corp. Confirms Gold Mineralization Along Entire 1,300-Metre El Mezquite Trend At Gran Pilar

Tocvan Ventures Corp. announced new drill results from the El Mezquite trend at its 100%-owned Gran Pilar Gold-Silver Project in Sonora, Mexico. The latest drilling confirms gold mineralization along the 1,300-metre El Mezquite trend and includes hole JES-26-162, which returned 247 metres of anomalous gold mineralization. The result builds on the Company’s August 6, 2026 discovery hole JES-26-155, which intersected 215 metres of 0.6 g/t gold from 36.6 metres downhole, and the initial El Mezquite discovery hole JES-26-135, which returned 22.9 metres of 0.6 g/t gold from surface. Together, these holes support a continuous mineralized corridor along the 1.3-kilometre El Mezquite trend, located approximately 1.6 to 1.9 kilometres east of the Main Zone and the planned 50,000-tonne pilot production facility, with existing road access. Mineralization confirmed along the 1,300-metre El Mezquite trend. JES-26-162 returned 247 metres of anomalous gold mineralization, one of the longest gold-bearing intervals reported to date at Gran Pilar. JES-26-162: 247.05 m of 0.10 g/t Au and 2.61 g/t Ag from surface, including 6.10 m of 0.45 g/t Au and 5.68 g/t Ag, including 1.53 m of 1.50 g/t Au and 8.50 g/t Ag, 10.68 m of 0.43 g/t Au and 7.16 g/t Ag, including 3.05 m of 1.29 g/t Au and 17.80 g/t Ag, 19.83 m of 0.27 g/t Au and 5.37 g/t Ag, including 1.52 m of 1.04 g/t Au and 26.10 g/t Ag, 13.73 m of 0.29 g/t Au and 5.28 g/t Ag, including 1.52 m of 0.96 g/t Au and 22.90 g/t Ag. Result follows discovery hole JES-26-155: 215.0 m of 0.6 g/t Au and 3 g/t Ag from 36.6 m, including high-grade intervals up to 16.0 g/t Au and 56.9 g/t Ag over 1.5 m. Initial El Mezquite discovery JES-26-135: 22.9 m of 0.6 g/t Au from surface, approximately 600 metres along trend from JES-26-155. El Mezquite remains open along strike and at depth and is hosted within a 1.3-kilometre magnetic anomaly associated with silicified hydrothermal breccia, pyrite, tourmaline, and increasing Zn-Pb-As indicators at depth. Reported intervals are drilled widths. True widths are unknown but estimated to be in the range of 60–80% of drilled widths. Plan view map showing the new discovery zone relative to the Pilot Facility and Main Zone. Long-section looking west (270 bearing) of the new gold-silver discovery along the El Mezquite trend. Reported intervals are drilled widths. True widths are unknown but estimated to be within the range of 60-80% of drilled widths. Dots on surface are gold results in soil samples, red (>90 ppb) and orange (>40 ppb) are strong indicators for mineralization. Soil samples up to 1,200 ppb or 1.2 g/t Au are found along the trend. El Mezquite is a north-south to northeast-trending target in the South Block of Gran Pilar. Mineralization is associated with a 1,300-metre magnetic anomaly surrounded by strongly elevated gold-in-soil and rock-chip values. Geology logged in nearby holes includes a vertically extensive, strongly silicified hydrothermal breccia system with continuous pyrite and arsenopyrite with tourmaline, magnetic andesite dikes, and increasing sphalerite-galena indicators at depth. Drilling to date has established near-surface mineralization in JES-26-135, a thick, continuous envelope with internal high-grade shoots in JES-26-155, and a 247-metre anomalous gold interval in JES-26-162 that supports continuity along the trend. The Company is using these results to prioritize follow-up RC and core holes along strike and down-dip. Continue step-out and infill drilling along the 1,300-metre El Mezquite trend. Assay remaining pending metres from the 2026 drill program (11,276 m drilled so far, results for 4,511 m pending). Integrate El Mezquite into district-scale targeting with the Main Zone, the near-surface silver-gold zone east of the pilot facility, Bojorquez, and the Central Corridor. Advance the permitted 50,000-tonne heap-leach pilot facility toward first gold-silver doré targeted in Fourth Quarter 2026. Results in this release are from nine reverse-circulation holes and one core hole. Together with previously reported JES-26-135 and JES-26-155, they support gold-silver mineralization along the El Mezquite corridor and show both a broad low-grade envelope and discrete higher-grade shoots. JES-26-163 was drilled as a northern step-out along the trend and returned multiple mineralized zones over more than 160 metres of hole length. From surface the hole intersected 23.15 m of 0.17 g/t Au and 5.96 g/t Ag, including a 0.60 m interval of 0.46 g/t Au and 48.60 g/t Ag and 1.25 m of 0.72 g/t Au and 7.30 g/t Ag. Deeper in the hole, mineralization included 5.65 m of 0.24 g/t Au from 79.20 m, 3.40 m of 0.93 g/t Au and 2.45 g/t Ag from 109.50 m (including 1.60 m of 1.65 g/t Au), 6.25 m of 0.34 g/t Au from 125.85 m, and a broader 16.65 m of 0.44 g/t Au and 7.37 g/t Ag from 145.80 m, including 4.15 m of 1.03 g/t Au and 19.55 g/t Ag. The combination of near-surface silver-gold and a thicker mid-hole gold-silver zone makes JES-26-163 an important strike confirmation hole north of JES-26-155 and JES-26-162. JES-26-156 intersected a broad anomalous envelope of 83.88 m grading 0.11 g/t Au and 0.95 g/t Ag from 10.68 m, including 6.10 m of 0.57 g/t Au and 5.98 g/t Ag. The result is consistent with a continuous, lower-grade halo surrounding higher-grade shoots along the trend. JES-26-159 returned 22.88 m of 0.23 g/t Au and 2.09 g/t Ag from 6.10 m, including 12.20 m of 0.38 g/t Au and 3.03 g/t Ag and a high-grade 1.53 m interval of 2.02 g/t Au and 11.40 g/t Ag. The hole supports near-surface mineralization in the central part of the corridor. JES-26-160 intersected 41.18 m of 0.12 g/t Au and 0.61 g/t Ag from 9.15 m, including 1.53 m of 1.17 g/t Au and 3.50 g/t Ag and a second 1.53 m interval of 0.56 g/t Au. The hole adds another near-surface anomalous interval on the same part of the trend as JES-26-156 and JES-26-159. JES-26-161 was collared immediately adjacent to JES-26-162 on a different azimuth and dip. It returned 10.68 m of 0.33 g/t Au and 6.30 g/t Ag from 22.88 m, including 1.50 m of 1.98 g/t Au and 7.20 g/t Ag, and a deeper 3.05 m interval of 0.39 g/t Au from 236.38 m. Together with the 247-metre anomalous interval in JES-26-162, the pair indicates the hydrothermal system has both lateral and vertical continuity at this location. JES-26-158 returned a narrow interval of 1.53 m of 1.00 g/t Au and 1.40 g/t Ag from 62.53 m. JES-26-164 intersected two 1.53 m intervals of 0.48 g/t Au and 0.44 g/t Au. JES-26-165 returned 1.53 m of 0.21 g/t Au. JES-26-157 recorded no significant values.

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