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Luca Mining Corp. Reports New Underground Drill Results At Campo Morado Mine
Luca Mining Corp. announced new underground drill results from its ongoing exploration program at the Campo Morado polymetallic VMS mine in Guerrero State, Mexico. Surface drillhole CMRY-26-10 intersected 28.4 metres of 2.28 g/t Au, 134.89 g/t Ag, 0.57% Cu, 0.95% Pb and 3.69% Zn from 104.2m, expanding the known mineralized footprint in the unmined El Rey zone. Underground drillhole CMUG-26-44 intersected 19.6 m of 2.78 g/t Au, 103.12 g/t Ag, 0.52% Cu, 0.67% Pb and 2.75% Zn from 40.5 m in the unmined Naranjo zone. Underground drillhole CMUG-26-42 intersected 20.6 m of 3.05 g/t Au, 50.69 g/t Ag, 0.65% Cu, 0.43% Pb and 1.57% Zn from 41.5 m, expanding previously defined mineralization in the unmined Naranjo zone. Exploration drilling operations continue at Campo Morado with two surface drill rigs and one underground drill rig – 12,035 m drilled from underground in 52 drillholes and 16,535 m drilled from 68 surface drillholes to date. Underground drillhole CMUG-26-42 through CMUG-26-45 targeted the Largo Norte zone and successfully intersected mineralization in each of these drillholes from this unmined zone. CMUG-26-42: 47.2 m of 1.79 g/t Au, 44.63 g/t Ag, 0.68% Cu, 0.46% Pb and 2.49% Zn from 25.8 m, including 20.6 m of 3.05 g/t Au, 50.69 g/t Ag, 0.65% Cu, 0.43% Pb and 1.57% Zn from 41.5 m which includes 0.7 m of 3.35 g/t Au, 113.80 g/t Ag, 4.20% Cu, 0.24% Pb and 1.79% Zn from 43.0 m. CMUG-26-43: 93.7 m of 0.86 g/t Au, 48.21 g/t Ag, 1.14% Cu, 0.14% Pb and 1.06% Zn from 0.0 m, including 15.0m of 0.93 g/t Au, 81.20 g/t Ag, 3.08% Cu, 0.09% Pb and 1.31% Zn from 29.5 m. CMUG-26-44: 64.0 m of 1.43 g/t Au, 54.47 g/t Ag, 0.52% Cu, 0.30% Pb and 1.30% Zn from 0.0m, including 19.6 m of 2.78 g/t Au, 103.12 g/t Ag, 0.52% Cu, 0.67% Pb and 2.75% Zn from 40.5 m. CMUG-26-45: 107.6 m of 0.95 g/t Au, 33.74 g/t Ag, 0.64% Cu, 0.22% Pb and 1.33% Zn from 0.0 m; including 29.6 m of 1.37 g/t Au, 48.27 g/t Ag, 0.55% Cu, 0.52% Pb and 2.39% Zn from 75.7 m. CMRY-26-10: 28.4 m of 2.28 g/t Au, 134.89 g/t Ag, 0.57% Cu, 0.95% Pb and 3.69% Zn from 104.2m, including a high-grade interval of 9.7 m of 4.09 g/t Au, 208.99 g/t Ag, 0.74% Cu, 1.33% Pb and 5.05% Zn from 111.3 m. CMRY-26-11: 5.8 m of 2.15 g/t Au, 74.72 g/t Ag, 0.49% Cu, 0.64% Pb and 0.65% Zn from 103.4 m, and 7.6 m of 1.11 g/t Au, 80.35 g/t Ag, 0.68% Cu, 0.44% Pb and 5.62% Zn from 111.0 m. CMRY-26-12: 2.2 m of 3.45 g/t Au, 8.58 g/t Ag, 0.06% Cu, 0.07% Pb and 0.28% Zn from 123.0 m. These recent intersections from the unmined Naranjo zone highlight the multiple opportunities to add additional mineable resources proximal to current development headings, existing infrastructure and expand previously defined mineral resources. The El Rey drillholes analytical results continue to showcase the potential to add tonnage to new areas currently being developed into the long-term Campo Morado mine plan. Surface drilling continues, with the current focus on Estrella de Oro and Naranjo in conjunction with on-going underground drilling planned to target the A9, Muneco, Bajo and Fish deposits, which all contribute to the 2026–2028 mine plans. Table 1: Highlight Diamond Drill Assay Results from UG Drillholes CMUG-26-42 through CMUG-26-45 and CMRY-26-10 through CMRY-26-12. Hole ID From (m) To (m) Interval (m) Au g/t Ag g/t Cu% Pb% Zn% CMUG-26-42 1.0 11.5 10.5 0.18 46.40 1.55 0.10 1.06 And 25.8 73.0 47.2 1.79 44.63 0.68 0.46 2.49 Including 41.5 62.1 20.6 3.05 50.69 0.65 0.43 1.57 Including 43.0 43.7 0.7 3.35 113.80 4.20 0.24 1.79 And 74.2 95.5 21.3 0.12 20.94 0.87 0.03 1.94 CMUG-26-43 0.0 93.7 93.7 0.86 48.21 1.14 0.14 1.06 Including 1.9 6.0 4.1 0.85 34.93 0.42 0.22 1.91 9.1 25.5 16.5 1.35 48.37 0.61 0.22 1.92 Including 9.1 14.8 5.7 1.27 43.46 0.65 0.15 1.50 14.8 16.8 2.0 3.01 57.55 0.57 0.84 1.76 And 29.5 44.5 15.0 0.93 81.20 3.08 0.09 1.31 47.5 49.5 2.0 0.61 36.15 0.47 0.11 1.58 64.0 69.0 5.0 0.63 39.42 0.61 0.19 1.39 77.0 93.7 16.7 0.92 53.17 1.39 0.10 0.52 Including 77.0 84.0 7.0 1.05 50.11 1.21 0.14 0.61 0.0 64.0 64.0 1.43 54.47 0.52 0.30 1.30 Including CMUG-26-44 2.5 26.5 24.0 0.92 35.41 0.44 0.17 0.87 33.4 40.5 7.1 0.94 39.86 0.50 0.18 0.48 40.5 60.1 19.6 2.78 103.12 0.52 0.67 2.75 CMUG-26-45 0.0 107.6 107.6 0.95 33.74 0.64 0.22 1.33 Including 0.0 5.8 5.8 0.48 34.06 0.58 0.09 2.04 7.2 22.2 15.0 1.15 21.63 0.55 0.18 1.28 29.3 40.7 11.4 1.55 34.79 0.75 0.12 1.67 58.2 62.2 4.0 1.09 26.63 0.69 0.11 0.52 67.3 69.9 2.6 0.83 23.29 0.72 0.21 0.43 75.7 105.3 29.6 1.37 48.27 0.55 0.52 2.39 CMRY-26-08 No Significant Values CMRY-26-09 No Significant Values CMRY-26-10 104.2 132.6 28.4 2.28 134.89 0.57 0.95 3.69 Including 106.7 109.5 2.8 2.19 104.78 0.46 0.53 1.49 And 111.3 120.9 9.7 4.09 208.99 0.74 1.33 5.05 And 126.2 132.6 6.4 1.80 122.93 0.66 1.04 4.94 101.1 123.4 22.3 1.28 59.66 0.60 0.40 2.65 CMRY-26-11 103.4 109.3 5.8 2.15 74.72 0.49 0.64 0.65 And 111.0 118.5 7.6 1.11 80.35 0.68 0.44 5.62 CMRY-26-12 123.0 142.6 19.7 0.82 154.57 0.06 0.09 0.08 Including 123.0 125.2 2.2 3.45 8.58 0.06 0.07 0.28 And 133.6 142.6 9.0 0.31 327.13 0.05 0.12 0.02 CMUG-26-42, CMUG-26-43 and CMUG-26-45 were all drilled parallel to the mineralized body which ranges from 20 to 100m in thickness and has a known length of up to 540m and width of up to 210m. CMUG-26-44 was drilled across the mineralized body and represents ~90% of true width. Starting in late 2025, Luca initiated an extensive data compilation and analysis program supported by VRIFY Technology Inc. and its proprietary AI prospectivity mapping software, DORA. This program at Campo Morado leverages Luca's substantial datasets, including over 650,000 metres of historical drilling, more than 30,000 soil samples, and detailed geological mapping at 1:20,000, 1:10,000, and 1:5,000 scales. These datasets are complemented by a comprehensive, multi-disciplinary geophysical survey database. All Campo Morado datasets have been compiled and integrated into VRIFY's DORA software, which leverages proprietary deep learning models. These datasets form the geoscientific layers from which the selected model identifies patterns and generates prospective exploration targets. For the Campo Morado property, DORA utilized a total of 153 geophysical layers including 56 augmented and 97 non-augmented layers, all contributing to target modelling. The geophysical inputs include primary layers along with their derivatives and augmented derivatives. These encompass: magnetic data, electromagnetic data, VLF, resistivity, gravity data, radiometric data, and induced polarization. Augmented geophysical datasets were generated through advanced feature extraction and deep learning techniques within DORA, including extraction of textural layers and automated lineament detection.