Gatos Silver Investor Presentation Deck

Organic Growth Strategy - South-East Deeps Targeting to add 3 to 4 years of mine life by Q3 2024(¹) Continuing to infill drill South-East Deeps, targeting higher grade trends GA-SE-538 3.7m @ 150 g/t Ag, 5.71% Zn, 2.94% Pb, 0.52 g/t Au and 1.00% Cu GA-SE-546 3.3m @ 174 g/t Ag, 2.60% Zn, 1.04% Pb, 0.27 g/t Au and 0.80% Cu GA-SE-535 6.8m @ 52 g/t Ag, 1.45% Zn, 0.42% Pb and 0.11% Cu GA-SE-541 7.5m @ 201 g/t Ag, 7.96% Zn, 9.49% Pb and 0.52% Cu GA-SE-542 3.0m @ 29 g/t Ag, 2.47% Zn, 2.81% Pb, 0.17 g/t Au and 0.20% Cu 2.0m @ 39 g/t Ag, 0.66% Zn, 1.45% Pb, 0.49 g/t Au and 0.43% Cu GA-SE-DV-536-A NSV GA-SE-549 NSV GA-SE-544 3.5m @ 140 g/t Ag, 17.11% Zn, 5.61% Pb and 0.47% Cu GA-SE-540 3.5m @ 457 g/t Ag, 0.92% Zn, 2.85% Pb and 2.13% Cu GA-SE-534 5.5m @ 66 g/t Ag, 0.15% Zn, 0.12% Pb and 0.55% Cu 3.8m @ 765 g/t Ag, 3.00% Zn, 4.17% Pb, 0.58 g/t Au and 1.75% Cu GA-SE-DV-551 1.5m @ 21 g/t Ag, 6.88% Zn, 2.63% Pb 1.5m @ 79 g/t Ag, 13.35% Zn, 5.33% Pb, 0.67 g/t Au GA-SE-537 GA-SE-520 GA-SE-515 GA-SE-524 GA-SE-532 GA-SE-DV-528 GA-SE-523 GA-SE-516 GA-SE-DV-548 3.0m @ 61 g/t Ag, 2.02% Zn, 1.66% Pb, 0.46 g/t Au and 0.37% Cu 0 Plunge 00 Azimuth 030 50 100 GA-SE-DV-529 GA-SE-526A 150 GA-SE-531 GA-SE-530 9.7m @ 88 g/t Ag, 6.98% Zn, 2.15% Pb and 0.21 g/t Au 3.9m @ 550 g/t Ag, 24.53% Zn, 13.74% Pb, 0.46 g/t Au and 0.30% Cu GA-SE-545 1.5m @ 24 g/t Ag, 5.55% Zn and 1.65% Pb GA-SE-556 3.8m @ 57 g/t Ag, 4.03% Zn, 0.49% Pb and 0.81% Cu 2.0m @ 207 g/t Ag, 3.43% Zn, 10.10% Pb, 1.22 g/t Au and 0.75% Cu GA-SE-533 CGA-SE-DV-518 GATOS SILVER GA-SE-DV-550-A 7.3m @ 26 g/t Ag, 1.32% Zn, 0.40% Pb and 0.45% Cu 1.5m @ 69 g/t Ag, 3.58% Zn 0.35% Pb and 0.89% Cu 4.0m @ 18 g/t Ag, 4.10% Zn, 1.84% Pb 1.5m @ 20 g/t Ag, 7.96% Zn, 2.21% Pb GA-SE-DV-539 NSV Legend GA-SE-547 3.4m @ 123 g/t Ag, 1.94% Zn, 1.28% Pb and 0.91% Cu 4.0m @ 243 g/t Ag, 0.95% Zn, 1.36% Pb and 1.17% Cu Developed / mined 2023 Mineral Reserve 2023 Mineral Resource Measured & Indicated 2023 Mineral Resource - Inferred Drillhole intercept (Apr-Sep 2023) (2) +1200 masl GA-SE-543 4.0m @ 61 g/t Ag, 3.33% Zn, 1.34% Pb, 0.69 g/t Au and 0.29% Cu 7.0m @ 15 g/t Ag, 2.08% Zn, 1.26% Pb and 0.18 g/t Au and 0.21% Cu +1050 +900 +750 13

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