#1SUMMA SILVER Corporate Presentation OTCQX:SSVRF Frankfurt: 48X TSXV:SSVR May 2023#2Cautionary Note Regarding Forward- Looking Statements This presentation includes certain "forward-looking information" and "forward-looking statements" (collectively "forward-looking statements") within the meaning of applicable Canadian and United States securities legislation including the United States Private Securities Litigation Reform Act of 1995. These forward-looking statements are made as of the date of this presentation. Forward-looking statements are frequently, but not always, identified by words such as "expects", "anticipates", "believes", "plans", "projects", "intends", "estimates", "envisages", "potential", "possible", "strategy", "goals", "objectives", or variations thereof or stating that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved, or the negative of any of these terms and similar expressions. Forward-looking statements in this presentation relate to future events or future performance and reflect current estimates, predictions, expectations or beliefs regarding future events and include, but are not limited to, statements with respect to: (i) the Company's focus on advancing its assets towards production; (ii) realizing the value of the Company's projects for the Company's shareholders; (iii) future prices of gold, silver, base metals and certain other commodities; and (iv) the timing and amount of estimated future production. All forward-looking statements are based on the Company's or its consultants' current beliefs as well as various assumptions made by them and information currently available to them. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Forward-looking statements reflect the beliefs, opinions and projections on the date the statements are made and are based upon a number of assumptions and estimates that, while considered reasonable by the respective parties, are inherently subject to significant business, economic, competitive, political and social uncertainties and contingencies. Many factors, both known and unknown, could cause actual results, performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements and the parties have made assumptions and estimates based on or related to many of these factors. Such factors include, without limitation: reliability of historical data; fluctuations in the spot and forward price of gold, silver, base metals or certain other commodities; fluctuations in the currency markets (such as the Canadian dollar versus the U.S. dollar); changes in national and local government, legislation, taxation, controls, regulations and political or economic developments; risks and hazards associated with the business of mineral exploration, development and mining (including environmental hazards, industrial accidents, unusual or unexpected formations, pressures, cave-ins and flooding); the presence of laws and regulations that may impose restrictions on mining; employee relations; relationships with and claims by local communities, indigenous populations and other stakeholders; availability and increasing costs associated with mining inputs and labour; the speculative nature of mineral exploration and development; title to properties; and the additional risks described in the Company's disclosure documents filed with the Canadian securities regulatory authorities under the Company's SEDAR profile at www.sedar.com. Summa Silver cautions that the foregoing list of factors that may affect future results is not exhaustive. When relying on our forward-looking statements to make decisions with respect to Summa Silver, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. Summa Silver does not undertake to update any forward-looking statement, whether written or oral, that may be made from time to time by the Company or on our behalf, except as required by law. The potential quantity and grade of any exploration target in this presentation is conceptual in nature, there has been insufficient exploration to define a mineral resource and it is uncertain if further exploration will result in the exploration target being delineated as a mineral resource. Mineralization hosted on adjacent and/or nearby and/or geologically similar properties is not necessarily indicative of mineralization hosted on the Company's property. Galen McNamara, P.Geo., the Chief Executive Officer of the Company, and a qualified person pursuant to NI 43-101, has reviewed and approved the scientific and technical information contained in this presentation. Mr. McNamara has verified the data disclosed herein, including sampling and drilling data underlying the technical information contained herein, by reviewing blanks, duplicates and certified reference material that the Company inserted into the sample stream and confirming that they fall within limits as determined by acceptable industry practice. Summa Silver Corp. | TSXV:SSVR OTCQX:SSVRF | Frankfurt: 48x Page 2#3Summa Silver Overview Advancing the Hughes Project in Nevada & Mogollon Project in New Mexico >>>> Prolific high-grade past producing silver-gold districts with large-scale ounce potential High-grade results in drilling with multiple zones over 2,000 g/t Ag equivalent => Substantial drilling planned at spacing required for first resource estimates United States focused silver and gold development company Moving to 43-101 resources on two high-grade silver projects Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF | Frankfurt: 48X Page 3#4Summa Silver Team Galen McNamara CEO & DIRECTOR Co-founder and geologist with over 15 years of discovery and capital markets experience, former Senior Project Manager at NexGen Energy, Co-founder and Chairman of Goldshore Resources and Angold Resources Christopher Leslie SENIOR GEOLOGIST Economic geologist with over 15 years of experience in mineral exploration focused on the discovery and advancement of gold and silver deposits, co-discoverer of the 8.2 million ounce Blackwater Gold Deposit Chris York VICE PRESIDENT, EXPLORATION Economic geologist with over 12 years experience focused on sediment hosted and epithermal narrow vein deposits, former Exploration Manager for Klondex Gold and Silver running all field activities Giordy Belfiore INVESTOR RELATIONS & CORP DEVELOPMENT Capital markets & Finance background with experience working in junior precious metals companies while specializing in investor relations and corporate development. Thomas O'Neill DIRECTOR Michael Konnert DIRECTOR Founder, CEO and Director of Vizsla Silver Corp, Co-founder and managing partner of Inventa Capital, 10+ years experience in mining and capital markets Brian Goss DIRECTOR 15+ years of extensive mineral exploration and project management experience in the, founder of Rangefront Geological, a leading geological consulting company project generator in the western United States President of Thomas O'Neill and Associates Inc, a national leader in insurance planning, group employee benefits and retirement planning, widely recognized expert in the life insurance and financial planning industry Garrett Ainsworth TECHNICAL ADVISOR Highly accomplished geologist and mining executive, key role in two world-class uranium discoveries, President, CEO and Director of District Metals Corp Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF | Frankfurt: 48X Page 4#5Capital Structure Recent Share Price* $0.71 Retail Investors Common Shares Issued 91,117,820 29% Incentive Stock Options 6,127,500 (Price average $0.88) Warrants 23,977,426 (Price average $1.42) Market Cap $64.7M Eric Sprott 18% Working Capital ~$10.5M Debt Nil Analyst Total Fully Diluted 121,222,746 coverage As of May 2, 2023 Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF | Frankfurt: 48X Management, Insiders & Close Associates 26% Institutional & High Net Worth Investors 27% RESEARCH CAPITAL Author: CORPORATION Stuart McDougall BUY: Price Target $2.00 Page 5#6SUMMA SILVER Mogollon Project NEW MEXICO, USA 66 The Mogollon district presents a very rare discovery opportunity, and for good reason. It is my strong belief that the district has the potential to be one of the great remaining vein fields still left in the United States" Galen McNamara, CEO and Director VAVAY A#7The Mogollon Project Highlights Under explored opportunity with potential to be one of the last great vein fields in the US Unfinished business with extensive drilling required to test extensions of a prematurely shuttered mine Multiple Targets emerging from detailed ground work and historic data compilation with extensive undrilled high-grade mineralization at surface Project is progressing under a minimal impact exploration permit Largest historic silver producer in New Mexico with at least 16.4 Moz Ag and 339 koz Au of production at grades of 298 g/t Ag and 6.16 g/t Au or 795 g/t AgEq between the 1880's and 1942 * Located in an area rich in natural resource development, with ongoing community engagement with stakeholders in the region First program will only test 1% of the prospective strike length of veins on the project *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)) Sources: USGS 1927, Blackhawk Mines corporate production records 1942 A Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 7#8Mogollon Project Drilling Hole ID Length Ag Au AgEq (m) (g/t) (g/t) (g/t) Viewed Area MOG23-16 MOG22-05 31.0 129 3.88 448 incl. 1.8 220 19.80 1,891 433 23.2m Incl 2,686 1.1m incl. 0.5 638 66.80 6,286 incl. 2.0 431 9.32 1,185 MOG23-18 MG-55 MOG23-19 GC-48 MSC-54 MOG23-14 MOGOLLON PROPERTY MOG22-10 1.7 73 1.37 183 MOG22-05 and 0.8 102 1.93 256 MOG23-16 and 1.2 182 3.00 420 448 Incl and 16.6 207 3.00 445 31m 1,891 1.8m MGR-12 MGR-14 MOG22-13 MGR-38 MGR-40 incl. 9.9 306 4.26 640 MGR-15 incl. 2.0 1002 12.90 2,004 MOG22-12 MOG23-16 0.7 92 2.44 292 and 1.0 57 1.08 144 and 0.8 21 1.00 104 250 15.6m Incl 579 2.4m and 23.2 134 3.66 433 MGR-08 MGR-13 incl. 1.1 484 26.30 2,686 MOG22-10 MOG23-15 MOG22-12 and 1.4 88 1.27 197 MOG22-12 15.6 60 2.29 250 incl. 2.4 115 5.56 579 445 16.6m Incl 640 9.9m MGR-35 MGR-10 and 1.2 28 1.32 138 1 km and 2.5 37 1.78 185 and 10.3 59 2.12 234 incl. 4.2 98 4.13 442 *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 Page 8#9A Consolidated Extension Drilling MOG22-10 640 9.9m MGR-35 1,078 2.7m Consolidated Mine Stopes O O MGR-40 607 4.3m По 500m Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X O O ୦୦ Consolidated Stopes 639 g/t AgEq** A' 4.7 g/t Au 264 g/tag 2200m LEGEND Hole Number 2100m 12 Drill Hole Pierce Point O MOG23-16 448 g/t AgEq* 433 23.2m 31m Intercept Length 2000m MOG22-05 448 31m O O NAVA 1900m > >500 g/t AgEq* 1800m 1700m ○ >300 g/t AgEq* >100 g/t AgEq* O No significant intervals *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)) Holes 01 through 19 have been previously released **Historic Production Source: Blackhawk Mines corporate production records 1942 Page 9#10A 父父 500 m Queen Vein Targets Consolidated Mine Eberle Mine Levels OPEN ZONES Drill Target laud S Vein 父 父ㄧ父父一父 A 11 " Clifton Tunnel II 11 11 11 " 11 Fanney/Socorro Vein Graveyard vein ------ Drill Targets "I 11 Fanney Shaft 1.5 km Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Stopes 1937-1942 Drill Targets о O • 00 *Assays Pending Page 10#11Independence Target Independence-Ida May Plan View Alberta (Crescent) Adit Independence Ida May Vein Trace Vein Consolidated Mine \//\\X\/ Queen Vein Little Fanney Mine 150 m Ida May Vein Longitudinal Projection NW Alberta Stope 1,130 g/t AgEq* 249 g/t Ag 10.6 g/t Au 150 m Fanney 500 Level Ida May Stopes Productive Zone Last Chance / Little Fanney Independence Vein Longitudinal Projection Alberta Stope 1,130 g/t AgEq* 249 g/t Ag 10.6 g/t Au *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)) Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X 150 m Drill Target Productive Zone Last Chance / Little Fanney Fanney Shaft SE 7400' Fanney Vein 7200' 7000' 6800' 6600' 6400' 6200' 6000' E 7400' 7200' Consolidated Mine 7000' Queen Vein 6800' 6600' 6400' 6200' Sources: Blackhawk Mines corporate 6000' production records Page 11#12Simplified Plan Lower Adit Elev. 2100m View A N 150m Simplified Longitudinal Section Gold Dust Target Pacific Structure Upper Adit Elev. 2220m 388 g/t AgEq 175 g/t Ag 2.7 g/t Au Gold Dust Vein 7240 Level Target Area Historic Production Elevation for District Elev. 1,800m - 2,100m Undrilled 2300m 2200m 2100m 2000m 1900m 1800m *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)) LEGEND = Prospect Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 12#13Mogollon Project Drilling and Target Areas Mogollon 1,024 g/t AgEq 116 g/t Ag 10.8 g/t Au (Outcrop) LEGEND Mogollon Claims Prospective faults and veins Great Western Ext. N Golden Arrow 583 g/t AgEq 180 g/t Ag 4.9 g/t Au 2 km Hughes/Tonopah 1,344 g/t AgEq* 344 g/t Ag 12.1 g/t Au (Outcrop) 2,116 g/t AgEq 740 g/t Ag 17.0 g/t Au (Outcrop) 2 km 4,058 g/t AgEq 397 g/t Ag 43.3 g/t Au (Outcrop) Maud Ext. Last Chance Ext. (Outcrop) 1,051 g/t AgEq* 170 g/t Ag 10.5 g/t Au (Outcrop) Consolidated Ext. Target Current drilling area represents 1% of total vein and fault strike length. Two drill rigs in full operation. AgEq** (g/t) • 0-0.5 • 0.5-10 <- 10-50 50-100 O 100 2,450 Las Chispas* 213 g/t AgEq 70.9 g/t Ag 2 km SilverCrest Metals Inc 1.7 g/t Au (Outcrop) 1,484 g/t AgEq* 376 g/t Ag 13.4 g/t Au (Outcrop) 2,155 g/t AgEq* 371 g/t Ag 21.3 g/t Au (Outcrop) 2 km Note: Grab samples are selective in nature and the resultant assays may not be representative of all mineralization on the project *Previously released, See January 20th,, 2022 News Release **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)). Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 13#14District Structural Setting Extensive Vein System with dozens of prospective targets and areas West-Northwest Vein Set hosts the most significant historically mined deposits in the district but remains underexplored North-South Vein Set is the comprises veins up to 50m wide and the Queen Vein is the current drill target Untested Potential to the East of the Queen Vein where the productive zone has been down-dropped and is largely unexplored Quartz vein Quartz vein projected Last Chance Andesite Fanney Rhyolite Mineral Creek Andesite Pacific Confidence Gold Dust PRODUCTIVE ZONE Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Great ste Great Western Independence Fanney Maud S Anna E Last Chance Queen N 600 m Page 14#15Mogollon Project Option Terms 3 year option to own 75% USD $350,000 cash payments Year Cash (USD) Shares (USD) Work Commitment (USD) 200,000 shares Effective Date $50,000 (paid) 200,000 shares (paid) USD $1,450,000 stock payments 1st Anniversary $100,000 (paid) $300,000 $250,000 (paid) USD $3M work commitment 2nd Anniversary $100,000 (paid) $500,000 (paid) $1,250,000 Option to purchase remaining 25% for $3,000,000 in shares and cash at end of option $100,000 $650,000 3rd Anniversary $1,500,000 $1,000,000 Total $2,800,000+ 200,000 shares $3,000,000 0-4% NSR (2% after buy-back on current drilling area) Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 15#16SUMMA SILVER Hughes Project NEVADA, USA Located in the heart of the famous historic Tonopah District and covering 5km of its possible eastern extension, the Hughes Property represents a unique opportunity to both revitalize a historic district and make new discoveries in the shadows of the headframes of some of America's great historic silver producers. Galen McNamara, CEO and Director#17The Hughes Project Highlights The prospective eastern side of the Tonopah district, second largest historic silver producer in Nevada Total production of 175 Moz of Ag and 1.86 Moz of Au at grades of 679 g/t Ag and 7.3 g/t Au or 1,235 g/t AgEq* from the district 5,504 acres - 5.5 km strike length Formerly owned by Howard Hughes High-grade Ag-Au in recent drilling Company is committed to strong stakeholder engagement 2020 & 2021 Highlights include: SUM21-30 3,971 g/t AgEq over 2.8 m SUM20-06 536 g/t AgEq over 18.1 m SUM21-31 1,529 g/t AgEq over 4.3 m Multiple zones of >1,000 g/t Ag equivalent intersected over a 3.5 km trend, mineralized zones largely open, un-tested drill targets common *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)). Silver and gold grades comprising AgEq are listed on page titled "Hughes Property Drilling" in this presentation Historic Production Source: United States Geological Survey, 2018 Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 17#18Mogollon 2 km Hughes/Tonopah 2 km 2 km Las Chispas* SilverCrest Metals Inc Hughes Project Overview Total Size: 5,504 acres 100% owned Tonopah Belmont Mine Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X US HWY 6 2 km Powerline Property claims Nevada • Reno Hughes Property Las Vegas Page 18#19Hughes Project Drilling Hole ID Length Ag Au AgEq (m) (g/t) (g/t) (g/t) SUM21-30 2.8 2,252 21.6 3,971 Belmont incl. 0.9 5,969 60.2 10,790 VIEWED AREA SUM21-31 4.3 913 7.86 1,529 incl. 0.6 4,338 56.5 8,989 SUM20-20 1.4 1495 16.9 2,867 Belmont Mine incl. 0.7 2,910 33.1 5,598 SUM20-06 18.5 286 3.1 536 incl. 2.5 1,762 19.99 3,385 SUM20-19 0.8 1480 15.15 2,696 OPEN OPEN SUM20-21 2.0 103 4.58 505 incl. 0.4 460 24.7 2,637 SUM20-01 2.3 805 3.77 1,064 incl. 0.8 1,870 5.53 2,181 Murray SUM21-42 5.7 337 2.1 492 Mizpah Ext. Targets Ruby Discovery incl. 0.9 1,301 7.86 1,878 3.5 km Ruby SUM20-10 2.0 258 2.63 469 incl. 0.5 790 8.07 1,437 SUM20-17 0.9 560 5.19 971 *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)). Murray SUM21-40 6.1 253 2.53 455 True thicknesses are estimated to be 70-80% of drilled intercept length incl. 60 0.9 543 5.42 977 Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 19#20100m 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#21OPEN SUM22-57 inc 372 2,793 2.1m 0.2m and 535 inc 1,273 4.6m 1.4m Longsection of the Murray Vein SUM22-54 SUM21-37 LEGEND SUM21-XX Drill Hole Pierce Point >500 g/t AgEq* 1600m >300 g/t AgEq* 11,992 0.9m g/t AgEq* >150 g/t AgEq* <150 g/t AgEq* Intercept Length SUM22-56 SUM22-52 4,116 0.4mand 303 4.1m SUM21-40 1500m 506 1,085 SUM21-36 6.1m 0.9m 264 404 and 4.1m 1.8m SUM22-53 233 1,812 inc 5.8m 0.2m SUM22-55 SUM22-51 * intervals previously reported in news releases dated: September 22, 2021, December 8, 2021 **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)) SUM21-39 1,200 0.8m Property Outline 1400m Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X 100m SUM22-57 @ 419 m 1,274 g/t AgEq over 1.4 m Ruby Mizpah Ext Rescue 725 Montana Murray open open 4.0 km untested +1500m +1300m Page 21#22SUM20-10 469 2.0m inc. 1,437 0.5m Looking to the northeast Ruby Discovery Area *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. Silver and gold grades comprising AgEq are listed on page titled "Hughes Property Drilling" in this presentation 1.4 km inverted 3D chargeability and resistivity model Chargeability - High Chargeability - High Undrilled Targets Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Resistivity - High LEGEND SUM21-XX 450 11.6m Drill Hole intercepts > 100 g/t AgEq g/t AgEq* Intercept Length Page 22#23District Comparison District Strike Length Million ounces Ag Million ounces Au Tonopah, Nevada 4 km 175 1.9 Guanajuato, Mexico 18 km >1,000 4 San Dimas, Mexico 7.5 km 582 11 Pachuca, Mexico 7.5 km 1,500 6.2 Comstock, Nevada 5 km 200 8.3 SUM20-10 6 zones of mineralization Tonopah 175M Oz Ag + 1.9M Oz Au 1,437 g/t AgEq over 0.5m OPEN 4 km 1.3 km Guanajuato 815M Oz Ag + 3.6M Oz Au San Dimas 582M Oz Ag + 11M Oz Au 7.5 km Pachuca 1,500M Oz Ag + 6.2M Oz Au 7.5 km Comstock 200M Oz Ag + 8.3M Oz Au 5 km Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X 18 km Source: USGS Mineralization hosted on adjacent and/or nearby and/or geologically similar properties is not necessarily indicative of mineralization hosted on the Company's property. *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. Silver and gold grades comprising AgEq are listed on page titled "Hughes Property Drilling" in this presentation Page 23#242 km Las Chispas* SilverCrest METALS Footprint Comparisons San Dimas fm FIRST MAJESTIC SILVER CORP Panuco ✓ VIZSLA SILVER CORP. Mogollon SUMMA SILVER Hughes/Tonopah SUMMA SILVER Sonora, Mexico Ag-Au epithermal veins 138 Moz grading 1,055 g/t AgEq 30 km of cumulative vein strike 5 km Durango, Mexico Polymetallic epithermal vein hosted 188 Moz grading 686 g/t AgEq 171 km of cumulative vein strike 5 km Sinaloa, Mexico > Polymetallic epithermal vein hosted 107 Moz grading 3 66 g/t AgEq 86 km of cumulative vein strike 2 km Southwestern New Mexico, USA Ag-Au epithermal veins Pre-Resource 50 km of cumulative vein strike 2 km Central Nevada, USA > Ag-Au epithermal veins Pre-Resource Dozens of veins Source: Company reports, Primero mining - 2014 San Dimas Property Technical Report. T. Maunula & Associates 2022 Panuco Property Technical Report. Tetra Tech Canada Inc -2018 Las Chipas Technical Report. Note: San Dimas, Las Chipas, & Panuco are nearby projects not owned by Summa Silver. There is no guarantee Summa will return similar exploration results or resources as San Dimas, Las Chipas or Panuco Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 24#25Summa Silver Work Program Q1-Q2 2023 Continue drill program at Mogollon with multiple holes planned to drill vein of know high-grade mineralization Evaluate consolidation opportunities at Mogollon Continue resource-stage metallurgical work Advance studies to support permitting of additional drill targets Q3-Q4 2023 Return to Hughes and initiate drill program to test high potential exploration targets Continued data compilation and target generation Additional drilling at Mogollon of new targets Assess potential for 43-101 compliant resource in 2023 Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 25#26The Opportunity Two famous high-grade past producers currently being drilled with excellent results to date Proven management team with track record of multiple discoveries, creating shareholder value Large scale ounce potential with significant leverage to silver and gold prices, substantial drilling planned and upcoming resources Excellent access and infrastructure in stable and established mining jurisdictions Summa Silver Corp. | TSXV:SSVR | OTCQX:SSVRF Frankfurt: 48X Page 26#27SUMMA SILVER For more information, please contact Galen McNamara CEO & Director +1-604-288-8004 [email protected] TSXV:SSVR OTCQX:SSVRF Frankfurt: 48X 1030 West Georgia St, Suite 918 Vancouver, BC, V6E 2Y3 www.summasilver.com @SummaSilver