Investor Presentaiton

100m Rescue Vein System - Long Section Oddie Rhyolite (Post-Ore) SUM21-42 492 1,878 5.7m incl. 0.9m SUM20-06 3,385 2.5m Underground workings 1700m LEGEND SUM21-XX Drill Hole Pierce Point >1,000 g/t AgEq* 1600m 11,992 0.9m g/t AgEq* >500 g/t AgEq* >150 g/t AgEq* Intercept Length <150 g/t AgEq* 1500m SUM21-30 incl 3,971 10,790 2.8m 0.9m SUM20-20 incl SUM21-31 SUM22-58 2,867 5,598 1.4m 0.7m Incl 1,529, 8,989 4.3m 0.6m inc 141 3.4m 0.5m 496 1400m 2021, September 22, 2021 * intervals previously reported in news releases dated: September 30, 2020, March 31, 2021, July 21, **AgEq is calculated using US$20/oz Ag, US$1,800/oz Au, with metallurgical recoveries of Ag - 90% and Au - 95%. AgEq = (Ag grade x Ag recovery)+((Au grade x Au recovery) x (Au price / Ag price)). True thicknesses are estimated to be 70-80% of drilled intercept length. Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X SUM22-58 @ 417.8m 496 g/t AgEq over 0.5m Ruby Mizpah Ext Rescue 725 Montana Murray open open 4.0 km untested Page 20 +1500m +1300m

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