Solaris Resources - September 2023

Copper Growth and Discovery in the Americas
Corporate Presentation
September 2023
World’s Greatest Explorer
Our Discoveries Honor His Legacy
TSX: SLS; OTCQB: SLSSF

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This presentation does not constitute an offering of securities and the information contained herein is subject to the information contained in the Company's continuous disclosure documents. All amounts expressed in
Canadian $ unless otherwise stipulated.
Forward-looking Statements
This presentation includes certain statements that constitute "forward-looking statements", and "forward-looking information" within the meaning of applicable securities laws (collectively, "forward-looking
statements"). All statements, other than statements of historical fact, are forward-looking statements. These statements appear in a number of places in this presentation and include statements made with respect to
anticipated exploration and development activities. When used in this presentation words such as "intends", "expects", "will be", "underway", "targeted", "planned", "objective", "expected", "potential", "continue",
"estimated", "would", "subject to" and similar expressions are intended to identify these forward-looking statements. Although Solaris Resources Inc. (the "Company") believes that the expectations reflected in such
forward-looking statements are reasonable, undue reliance should not be placed on forward-looking statements since the Company can give no assurance that such expectations will prove to be correct. These
statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements, including risks
related to the business of the Company; global outbreaks and contagious diseases (including COVID-19); business and economic conditions in the mining industry generally; the supply and demand for labour and other
project inputs; adverse claims made by local communities; changes in commodity prices; unanticipated exploration and development challenges (including failure of equipment or processes to operate in accordance
with specifications or expectations, cost escalation, unavailability of materials and equipment, government action or delays in the receipt of government approvals, industrial disturbances or other job action, and
unanticipated events related to health, safety and environmental matters); adverse weather conditions; political risk and social unrest; changes in interest and currency exchange rates; and the risks, uncertainties and
other factors identified in the Company's periodic filings with Canadian securities regulators.
These forward-looking statements were derived using numerous assumptions, including assumptions regarding general business and economic conditions; the Company’s ability to develop and maintain relationships
with local communities (including the local Shuar Centres of Warints and Yawi); commodity prices; anticipated costs and expenditures; the Company’s ability to advance exploration efforts at Warintza and its other
projects; and the results of such exploration efforts. While the Company considers these assumptions to be reasonable based on information currently available, they may prove to be incorrect. Forward-looking
statements speak only as of the date those statements are made. Except as required by applicable law, we assume no obligation to update or to publicly announce the results of any change to any forward-looking
statement contained herein to reflect actual results, future events or developments, changes in assumptions or changes in other factors affecting the forward- looking statements. If we update any forward-looking
statements, no inference should be drawn that we will make additional updates with respect to other forward-looking statements. All forward-looking statements contained in this presentation are expressly qualified in
their entirety by this cautionary statement.
Technical Information
The technical information contained in this document related to the mineral resource estimate at Warintza was approved by, or based upon disclosure prepared by, Mario E. Rossi, FAusIMM,RM-SME, Principal
Geostatistician of Geosystems International Inc., a “Qualified Person” as defined in National Instrument 43-101 Standards of Disclosure for Mineral Projects (“43-101”). See the corresponding technical report entitled
"NI 43-101 Technical Report for the Warintza Project, Ecuador" with an effective date of April 1, 2022 and available on SEDAR under the Company's profile at www.sedar.com. The remaining technical information
contained in this document has been reviewed and approved by Jorge Fierro, M.Sc., DIC, PG, Vice President Exploration of Solaris who is a “Qualified Person” as defined in NI 43-101. Jorge Fierro is a Registered
Professional Geologist through the SME (registered member #4279075).
Cautionary Note to U.S. Investors Concerning Estimates of Mineral Resources
The mineral resource estimates described in this presentation have been prepared in accordance with the requirements of Canadian securities laws, which differ from the requirements of U.S. securities laws. The terms
"mineral resource", "measured mineral resource", "indicated mineral resource" and "inferred mineral resource" are defined in accordance with Canadian National Instrument 43 101— Standards of Disclosure for
Mineral Projects (“NI 43 101”) and the Canadian Institute of Mining, Metallurgy and Petroleum (the “CIM”) – CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as
amended. These definitions differ from the definitions in requirements under United States securities laws adopted by the United States Securities and Exchange Commission. Under Canadian rules, estimates of
inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. Investors are cautioned not to assume that all or any part of an inferred mineral resource exists or is
economically or legally mineable. An “inferred mineral resource” is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling.
Geological evidence is sufficient to imply but not verify geological and grade or quality continuity. An inferred mineral resource has a lower level of confidence than that applying to an indicated mineral resource and
must not be converted to a mineral reserve. It is reasonably expected that the majority of inferred mineral resources could be upgraded to indicated mineral resources with continued exploration. Investors are
cautioned not to assume that all or any part of mineral resources determined in accordance with NI 43-101 and CIM standards will qualify as, or be identical to, mineral resources estimated under the standards of the
SEC applicable to U.S. companies. Accordingly, information contained in this presentation may not be comparable to similar information made public by U.S. companies subject to the reporting and disclosure
requirements under the United States federal securities laws and the rules and regulations thereunder.
Forward-Looking and Cautionary Statements

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Tamarugo
Ricardo
La Verde
Warintza
Peru JVs
Leverage through drilling to
multiple-times resource
growth and discovery potential
Global Scale Resource at
Flagship Warintza, Ecuador
579 Mt at 0.59% CuEq (Ind)
887 Mt at 0.47% CuEq (Inf)
(0.3 Bt @ 0.8% CuEq Starter Pit),
> 100% growth potential
Robust Economics
Open pit, high grades, clean met,
primary infrastructure
> billions in capex savings
Warintza Project| Investment Summary
Social License to Operate
Impact & Benefits Agreement
> explicit community consent
for project
Near Term Project Timeline
“Strategic Priority Project”
provides executive branch
oversight for permitting
Unique Opportunity
Market dislocation provides
extreme relative valuation
discount to M&A precedents
Solaris is advancing a portfolio of copper assets
in the Americas:
Regulatory & Fiscal Stability
Regulatory and Tax Stability via
Investment Contract to 2041
> lowest taxes in Latin America

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Canada-based management group, focused on mining sector
Highly-specialized in exploration and development stage projects
Unrivaled track record of creating value, with over $4.5B in exit transactions
Part of The Augusta Group | Unrivaled Track Record of Value Creation
Sold for $1.6B in 2011 Sold for $667M in 2014 Co-Founded in 2017;
$2.0B Market Cap
Sold for $2.1B in 2018
Past Returns
(12,960% return) (3,300% return) (6,100% return) (>1,700% return)
Note: The results for Ventana Gold Corp., Augusta Resource Corp., Equinox Gold. and Arizona Mining Inc. are independent of the results of Solaris Resources and are no guarantee of the future performance.
Undue reliance should not be placed thereon when considering an investment in Solaris.

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1. Capital structure as at Aug 9, 2023 and cash balance as at Jun 30, 2023.
SLS
TSX
148M
Common Shares Outstanding
11M
Stock Options
159M
Fully Diluted Shares Outstanding
US$15M
Cash
US$600M
Market Cap
Capital Structure
Summary¹
>$200M Invested by Management Analyst Coverage: Avg Target $19
Richard Warke
40%
BlackRock
9%
Lundin 5%
Lowell 2%
Mgmt 5%
Fidelity
1%
Float
38%
Share Distribution
Leading all issuers in TSX
materials sector
2/3 purchased >25%
above current share price
Zero insider selling
FY'20 FY'21 FY'22 YTD'23
$15.5M at 37%
Premium to Market
(Oct 2022)
Cumulative Investment ($M)

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Richard Warke, Executive Chairman
Arizona Mining, Equinox Gold,
Augusta Resource, Ventana Gold
Daniel Earle, President & CEO
TD Securities
Sunny Lowe, CFO
Kinross Gold, Inmet Mining
Purni Parikh, SVP Corporate Affairs
Arizona Mining, Augusta Resource, Ventana Gold
Federico Velasquez, President Latin America
Equinox Gold, Anglo American, Alta Gas
Chad Wolahan, VP Projects
Ivanhoe Mines, Stantec, Newcrest
Jorge Fiero, VP Exploration
Equinox Gold, Lowell Copper, BHP
Tom Ladner, VP Legal
Augusta Gold, Titan Mining, BLG LLP
Jacqueline Wagenaar, VP Investor Relations
Guyana Goldfields
Poonam Puri, Director
Davies Ward Phillips & Vineberg LLP,
Arizona Mining
Donald Taylor, Director
Arizona Mining, BHP Minerals, Bear Creek
Kevin Thomson, Director
Barrick, Davies Ward Phillips & Vineberg LLP
Ron Walsh, Director
Walsh King LLP, Canadian Tax Foundation,
Vancouver Stock Exchange
Board & Management
Strategic Partners
Richard Warke
Richard Warke has led multiple successful mining
companies, including Ventana Gold (sold for $1.6B);
Augusta Resource (sold for $670M); Co-Founded to
form Equinox Gold ($2.0B Market Cap); and Arizona
Mining (sold for $2.1B).
Augusta Group
Mining sector-focused management group based in
Canada and the U.S. with an unrivaled track record
of value creation totaling over $4.5B in exit
transactions since 2011 and has strategic
partnerships with leading entrepreneurs in the
mining sector.
Leadership | Track Record of Success
Lundin Group
Lundin Group has led companies to numerous
discoveries and major transactions, including
Lundin Mining’s $3.3B merger with EuroZinc,
the $2.0B sale of Tanganyika Oil, and the $7.1B
sale of Red Back Mining.

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David Lowell made more discoveries of greater
consequence than anyone in history, with over a
dozen major discoveries, including the largest copper
mine in the world, La Escondida, which produced
~$10B of copper last year.
Assembled our pipeline of grassroots exploration
projects targeting future discoveries; programs led by
his protégé, Jorge Fierro, VP, Exploration.
Co-defined porphyry copper deposit model in 1970.
Direct application led to first discoveries (exposed
deposits); evolved technique for second wave
discoveries (obscured deposits); final evolution
targets blind discoveries.
El Teniente
Mirador, 2001
Pierina, 1996
Toromocho, 2005
Los Calatos, 1992
Maria Rosa, 1985
Leonor, 1989
San Cristobal, 1985
Zaldivar, 1981
Escondida, 1981
Bajo Alumbrera, 1968
Andina
Los Bronces
Los Pelambres
Radomiro Tomic
Spence
Chuquicamata
Collahuasi
Toquepala
Cerro Verde
Antamina
Warintza, 2000
Lowell Discoveries
Major Mines
Obscured Deposits (80-90s)
Partly covered by capping, cover,
e.g., La Escondida
Blind Deposits (2000-Future)
Completely covered or deep,
e.g., Tamarugo, Ricardo
Exposed Deposits (60-80s)
Alteration systems visible from air,
e.g., Bajo Alumbrera, San Cristobal
David Lowell | World’s Greatest Explorer (1928-2020)

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Ecuador | Political Transition, Outlook Secure
1. Fraser Institute Annual Survey of Mining Companies 2022
2. See Company press release dated Dec 22, 2022
2.85%
4.65%
6.86%
8.40%
11.10%
13.34%
103.00%
Ecuador
Brazil
Mexico
Peru
Chile
Colombia
Argentina
Low Inflation
69 61 60
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Ecuador Peru Chile DRC
Mining Investment
Attractiveness Index¹
45
(2015)
Elections
Run-off Oct 15 to set President,
contest between Luisa González (33%)
and Daniel Noboa (24%)
Both candidates represent continuity
of government policy stance supporting
mining development in Ecuador
US Dollar-based
economy
Risk Mitigation Milestones
Social
Lowest capex
intensity in region
Fastest permitting
timelines
Lowest effective
tax rates
Political Risk Paradox
Election perceived as political risk event,
however, mining stands to benefit
Top issues were security, growth and job
creation with consensus around economic
imperative of mining development
Recent Mining Events
Mirador amended permit for
expansion to 51 Mtpa (250kt/yr Cu)
Solgold 25-yr renewal of concession,
Exploitation Agreement for Cascabel
$300M investment from Wheaton
Investor Protection Agreement for
>$400M gold project
Regulatory
& Tax
Permitting
Impact & Benefits Agreement – 2022
> explicit consent from communities
Investment Contract² – 2022
> regulatory and fiscal stability
“Strategy Priority Project” designation,
executive oversight of permitting timeline
Candidates
“Natural resources are a great opportunity” “You cannot say no to oil or
mining because development is necessary to lift the country out of poverty”
Rafael Correa, UNES
Luisa González (UNES – Correa’s party)
Left-wing, former Correa cabinet
minister, promises to continue agenda
that facilitated major mining
development, with statements in
support of further development to
support social spending
Daniel Noboa (ADN)
Center-right, business-aligned
lawmaker, US-educated son of Bonita
banana magnate Álvaro Noboa,
focused on fostering job creation via
tax reform, attracting FDI with
international free trade agreements
and increasing resource sector
production
“We are going to promote legal and responsible mining to compensate for
the gap in the fiscal”
Daniel Noboa, ADN

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Southeastern Ecuador: Mining Success Story
Ecuador | Political Shift Favoring Mining
Southeastern Ecuador mining district straddles the border between Morona Santiago and
Zamora-Chinchipe, which share common geographic, demographic context
Major mining development in Zamora-Chinchipe has transformed the region with remote
cantons hosting projects rising from poorest to rank among the wealthiest in the country
Dramatic improvement in economic and social outcomes, access to services and development of
infrastructure have shifted public sentiment in favor of formal mining development
Morona Santiago politics are following those of Zamora-Chinchipe
> Strong support for candidates recognizing economic imperatives of mining
> National anti-mining protests in June turned out zero protestors in these provinces
Lowest crime rate region in Ecuador vs highest along Pacific port regions and Colombian border

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Responsible Mining | New Model for Responsible Mining in Ecuador
Warintza Success Story
World class discovery
by David Lowell in
2000, sat largely
dormant since 2001
due to a breakdown in
social acceptance from
local communities
Extensive dialogue led to
understanding root
causes of conflict,
resolution of underlying
issues mid-2019;
instituted an informed,
innovative CSR program
Government-Sponsored
Prior Consultation process
and signed Memorandum
of Understanding in 2019,
Impacts and Benefits
Agreement in 2020
(Amended March 2022)
Warintza Model
Inclusive development model
based on transparency, dialogue,
and trust relationship between
government, communities and
company with the objective of
sustainable socio-economic
development of community and
people together with project
“The people of Limón Indanza
benefit the most with jobs and as
suppliers of the Warintza Project.
We will work on a plan so that the
people of Limón continue to benefit
from the responsible use of our
natural resources.”
Antonio Castillo Orellana,
Mayor of Limón
“The Company’s presence in Morona
Santiago has generated an important
impact on the economy through its
responsible approach. This positive
impact and beneficial relations with local
communities have driven expectations for
further favorable outcomes.”
Edwin Erazo,
Governor of Morona Santiago
Strategic Alliance governed by Board
of Directors from host Shuar Centres;
community development alongside
project, with investments in health,
education, training, infrastructure,
environment, entrepreneurship,
gender equality, labor, cultural and
human rights and security
“We are excited to be part of the successful
advancement of Warintza and show the
industry that it is possible to develop a mining
project in a responsible and inclusive way.
The people of Warints and Yawi welcome
President Lasso’s approach which promotes
the development of remote communities as
this has had a direct impact on our families’
economy, living conditions and opportunities.”
Vicente Tsakimp, Coordinator,
Warintza Project Strategic Alliance

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Warintza Community
Population
Number
Community
600
Warints
200
Yawi
800
Total
Direct Community
Employment
Number
Community
194
Warints, Yawi
246
Amazonia sector
61
Resto del país
501
Total
Responsible Mining | Partnership with Host Communities
Community involvement
at each step, enhanced
with capacity-building
program
Maximizing community involvement
key to strong and resilient alliance
Innovative approach:
commitment to
transparency,
education & inclusion
Government & community
understanding of impacts
and benefits of project
Over 525 indirect
service providers
Vicente Tsakimp, Coordinator
Warintza Project Strategic Alliance
“The Shuar Nations of Warints and Yawi have
been working with Solaris for more than
three years in the exploration and study of
our Ancestral Lands.
It has been a partnership, with two-way
learning and knowledge exchange.”

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Warintza| Precedent-Setting CSR Programs Empowering Local Communities
In
Ecuador
to have:
Completed Prior
Consultation
process in 2019
Signed Impact and
Benefits Agreement
in 2020
(Amended 2022)
Committed to
national
Zero Carbon
Program
in 2021
Developed
framework for
Formalization of
Artisanal Mining
in 2021
Environmental
Responsibility and
Stewardship Programs
• First Company to
participate in Ecuador’s
Zero Carbon Program
• Environmental
management plan and
community engagement
• Capacity building/
training/workshops for
environmental
stewardships
Education Initiatives
 Financial education
workshops
 Capacity skills training
 Post secondary
scholarships &
internship program
• Community educational
centres
• Dental hygiene campaign
• Covid-19 cooperation
and vaccination program
Local Entrepreneurship
and Innovation Programs
 Full employment
achieved with Shuar
Nations of Warints &
Yawi and surrounding
communities
 Training and workshops
on leadership, corporate
entrepreneurship,
mining easement and
governance
Gender Equity and Female
Empowerment Initiatives
• Women’s Empowerment
Principles – Signed
principles and
committed to
implementation
• Scholarship Program ‘Soy
Minera’ – Developed in
coordination with
Women in Mining
Ecuador.
• Entrepreneurship
programs
Investment in Community
Health and Wellbeing
Initiatives
• Sports program
• Recreational
infrastructure
Warintza
Green
Warintza
Education
Warintza
Entrepreneur
Warintza
Woman
Warintza
Sports

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$11,200
$20,303
$25,000
$29,412
$31,518
$60
$84
$122
$100
$159
Ecuador Panama Peru Argentina Chile
Mirador Cobre Panama Quellaveco Josemaria QB2
$/tpa CuEq
$/tpa
Mining District | Proven Low-Cost Setting
Access to grid
power, adjacent
Santiago
development
(US$3B/2.4GW)
Primary Infrastructure: Major Capital Savings
1. See Company press release dated March 21, 2022
2. Source: Scotiabank GBM estimates; Company reports. Analysis excludes acquisition costs and pre-sanctioning expenditures.
Mirador includes Phases 2 expansion permit to 46 Mtpa. Josemaria assumes estimated development capex
268km2
property,
100%-owned;
40km north of
Mirador mine
Access road to
highway connecting
Pacific ports,
transmission lines,
airport, skilled labor,
fresh water
MOU signed for
100% supply of
hydroelectric
power¹; Ecuador
7c/kWh vs Chile 15c
No Infrastructure
High Elevation
High-Cost Labor
Desalination
Infrastructure
Low Elevation
Low-Cost Labor
Fresh Water
$2.8B / 46Mtpa $6.7B / 80Mtpa $5.5B / 45Mtpa $5.5B / 55Mtpa $8.1B / 51Mtpa
Competing Project
Challenges:
Extreme Elevation,
No Infrastructure
Complex Met,
Arsenic Issues
High Strip/Low
Grades at Surface
Block Caving
Requirements
Capital Intensity²

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Capital Intensity / Price Mismatch will Constrain Growth
Ecuador Competitive Advantage
1. Source: Scotiabank GBM estimates, Analysis excludes acquisition costs and pre-sanctioning expenditures. Commodity Markets Are Tighter Than You Think, January 2023, Company reports.
2. Source: Wood Mackenzie. Includes greenfield projects only. Excludes projects using the solvent extraction and electrowinning method of production. Bubble size refers to life of mine average
copper equivalent production. Weighted by life of mine average copper equivalent production.
2025
Mirador, SE Ecuador
Industry-low capex intensity,
project viability >15% IRR at $3.00 Cu
Increasing Capital Intensity of Greenfield Open Pit Copper Projects and Long-Term Incentive Pricing Implications¹ ²
2001 to 2010 ~$7k/t
$2.50 Cu for 15% IRR
Quellaveco, Peru
QB2, Chile
Recent Projects >US$25k/t
2011 to 2020 ~$18k/t
2030
US$/t CuEq
50,000
40,000
30,000
20,000
10,000
2020
2015
2010
2005
2000
,

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Warintza| Natural Infrastructure Supports Low-Cost Development
1.See Company press release dated March 21, 2022
Natural Advantages Leading Technologies Results
100% renewable, hydroelectric power¹
Favorable topography
Abundance of freshwater
Energy rich mining district Electrified mining fleet
Gravity-assisted materials movement
Efficient comminution powered by renewables
Hybrid transport of concentrate
products to coast
Low Emissions
High Efficiency
Low Capex Intensity
Low Operating Costs

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Resource Estimate
Warintza In-pit Mineral Resources
Contained Metal
Grade
Tonnes
Category
Cut-off
Au
(Moz)
Mo
(Mt)
Cu
(Mt)
CuEq
(Mt)
Au
(g/t)
Mo
(%)
Cu
(%)
CuEq
(%)
(Mt)
CuEq
(%)
1.11
0.18
2.95
3.84
0.05
0.02
0.40
0.52
736
Indicated
0.2% 1.63
0.19
4.80
5.80
0.03
0.01
0.31
0.37
1,558
Inferred
2.73
0.36
7.76
9.64
0.04
0.02
0.34
0.42
2,294
0.93
0.15
2.70
3.45
0.05
0.03
0.47
0.59
579
Indicated
0.3%
(Base)
1.08
0.13
3.48
4.17
0.04
0.01
0.39
0.47
887
Inferred
2.01
0.28
6.18
7.61
0.04
0.02
0.42
0.52
1,466
0.77
0.12
2.38
2.97
0.05
0.03
0.54
0.67
442
Indicated
0.4% 0.71
0.08
2.53
2.96
0.04
0.01
0.47
0.55
539
Inferred
1.49
0.20
4.91
5.93
0.05
0.02
0.50
0.60
981
‘Indicative Starter Pit’
0.38
0.06
1.20
1.49
0.07
0.03
0.67
0.82
180
Indicated
0.6% 0.17
0.02
0.69
0.79
0.05
0.02
0.64
0.73
107
Inferred
0.55
0.07
1.89
2.27
0.06
0.03
0.66
0.79
287
1.The mineral resource estimates are reported in accordance with the CIM Definition Standards for Mineral Resources & Mineral Reserves, adopted by CIM
Council May 10, 2014. 2. Reasonable prospects for eventual economic extraction assume open-pit mining with conventional flotation processing and were tested
using NPV Scheduler™ pit optimization software with the following assumptions: metal prices of US$3.50/lb Cu, US$15.00/lb Mo, and US$1,500/oz Au; operating
costs of US$1.50/t + US$0.02/t per bench for mining, US$4.50/t milling, US$0.90/t G&A; recoveries of 90% Cu, 85% Mo, and 70% Au. 3. Resource includes grade
capping and internal dilution. Grade was interpolated by ordinary kriging populating a block model with block dimensions of 25m x 25m x 15m. 4. The ‘Indicative
Starter Pit’ is based on the same assumptions as the Resource except utilized metal prices of US$1.00/lb Cu, US$7.50/lb Mo, and US$750/oz Au. No economic
analysis has been completed by the Company and there is no guarantee an “Indicative Starter Pit’ will be realized or prove to be economic. 5. Mineral resources
that are not mineral reserves do not have demonstrated economic viability. 6. Copper equivalent assumes recoveries of 90% Cu, 85% Mo, and 70% Au based on
preliminary metallurgical test work, and metal prices of US$3.50/lb Cu, US$15.00/lb Mo, and US$1,500/oz Au. CuEq formula: CuEq (%) = Cu (%) + 4.0476 ×
Mo (%) + 0.487 × Au (g/t). 7. The Qualified Person is Mario E. Rossi, FAusIMM,RM-SME, Principal Geostatistician of Geosystems International Inc. 8. All figures
are rounded to reflect the relative accuracy of the estimate. 9. The effective date of the mineral resource estimate is April 1, 2022. 10. See the corresponding
technical report entitled "NI 43-101 Technical Report for the Warintza Project, Ecuador" with an effective date of April 1, 2022 and available on SEDAR under the
Company's profile at www.sedar.com.
Central Pit
1.5 Bt at 0.52% CuEq (at 0.3% CuEq)
o 579 Mt at 0.59% CuEq Indicated
o 887 Mt at 0.47% CuEq Inferred
Starter Pit
287 Mt at 0.79% CuEq (at 0.6% CuEq)
Grades discounted by recoveries
Ordinary kriging constrained by geological domains
Grade capping
Dilution to 25 x 25 x 15m blocks
Exceptional Metallurgy
Rapid flotation, low reagents, coarse grind
Over 90% Cu and 80% Mo recoveries
High Cu (Au) conc grades from supergene (40% Cu)
and hypogene (22% Cu); high Mo concs ≥ 51% Mo
No high sulphidation or skarn mineralization –
no arsenic or other deleterious elements

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Warintza Project | High-Grade Discovery Potential within Cluster
Source: The information in this slide is based upon the Company’s
news releases dated Jan 18, Feb 28, April 4, May 26, Jul 20, Sep 7,
Oct 13, Dec 5, 2022 and Feb 13, Mar 13, May 2, June 1, 14, 28,and
Jul 24, 2023, Sep 12, 2023 other than the 2022 Resource Outline.

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Warintza Project | Regional Potential Beyond Warintza Cluster
1. Panantza and San Carlos are independent of Solaris. Readers should not infer that Solaris will obtain similar results and undue reliance should not be placed thereon when
considering an investment in Solaris
Proposed Spin-Out of
Solaris Exploration including:
Covered high sulphidation
system at Caya (pathfinder
signature, clay alteration,
vuggy silica)
Porphyry targets at Clemente,
Cora, Mateo and Medio
Camino
Skarn targets at Playas,
Justo, Betty, Yawi,
La Celestina
Hydrothermal breccia
with chalcopyrite Andesite porphyry
with potassic
alteration Dacite porphyry with
pyrite-chalcopyrite
Polymetallic vein with
sphalerite, galena, and
chalcocite
Advanced argillic
alteration, vuggy silica
Brecciated porphyry
with chalcopyrite
Rest of project portfolio in
Chile, Peru, Mexico

19
$4
$6
$8
$10
$12
$14
$16
Aug-22 Nov-22 Feb-23 May-23 Aug-23
Solaris
Spot Copper (Indexed)
Peer Average (Indexed)
Solactive Global Copper Miners (Indexed)
Warintza | Market Dislocation Leaves Relative Valuation Gap
1. EPFR, Haver, Deutsche Bank Asset Allocation as of May 31, 2023
2. BofA Global Fund Manager Survey
3. Results for Arizona Mining Inc. and Ventana Gold Corp. are independent of the results of Solaris Resources and are no guarantee of the future performance. Undue reliance should not be
placed thereon when considering an investment in Solaris
4. BMO Capital Markets base metals developer M&A greater than $50M as of August 2023
5. Warintza Project 2022 MRE resource and P/NAV analyst consensus estimates dated as at Aug 10, 2023 and are independent of the results of Solaris and no guarantee of future performance
6. FactSet - Peers include group of development-stage copper equities
P/NAV
M&A Transactions
Past Augusta Group Returns³:
1.0x
Arizona Mining
1.0x
Ventana Gold Corp.
Recent Copper Development Transactions⁴:
1.0x
Glencore – 56% MARA (Pan American)
0.6x
Solgold – Cornerstone
0.8x
Harmony Gold – Eva (Copper Mountain)
1.3x
Glencore – MARA (Newmont)
0.7x
Agnico – San Nicolás JV (Teck)
0.3x
Lundin Mining – Josemaría
0.8x
Median
0.2x
Solaris Resources (Warintza Project 2022 MRE)⁵
Excess distribution of >$150M in shares
30% Gap to
Peers Closing
Solaris – Aug 2023
C$5.50 / US$0.6B
0.2x P/NAV
¹
⁶
²

20
Catalysts| Growth and Discovery Drilling
Step-Out Expansion drilling at Warintza Southeast discovery
Resource drilling complete year-end delivering
Major growth
Ongoing drilling at Warintza Central and East
Spin-out of Solaris Exploration Inc. on potential
transaction
Step-Out Expansion drilling at Patrimonio discovery

Joint Ventures

22
Solaris option to earn up to 75%
4,600-hectare property, 60km SE of Las
Bambas, Haquira
Outcropping porphyry exposed >300m during
recent landslip
Samples from this outcrop grade up to 3% Cu
Community consultation ongoing
Capricho and Paco Orco | Discovery Potential via JV in Peru
Capricho Paco Orco
Solaris option to earn up to 75%
4,400-hectare property, northern extension of
Southern Peru Copper Belt
Polymetallic CRD gossan outcropping in
limestone extending >2km
Surface samples up to 0.5% Pb, 0.26% Zn and
58 g/t Ag from leached material
Community consultation ongoing

23
16,000 hectares in the most prolific section of the
West Fissure fault, which controls Chile’s largest
copper deposits
Earlier efforts at drilling stymied by fault, but
encountered rock types and alteration similar to
those seen at Chuquicamata
Ricardo Project | Discovery Potential in Chile
Discovery potential on the same structure
as one of Chile’s largest copper mines,
Chuquicamata

24
Tamarugo Project | Discovery Potential in Chilean Copper Belt
Solaris can earn up to a 75% interest in Tamarugo for
gross expenditures of US$5.5M / 5-yrs from Freeport
5,100-hectare property in a mineralized corridor that
hosts numerous porphyry deposits
5km NE of Copiapo with excellent access to
infrastructure including power and nearby water
Same geologic and structural setting as El Salvador and
Potrerillos Copper Mines, located ~50km to the NE
Discovery potential in the same geologic area
that hosts Chile’s largest copper porphyry
deposits

25
La Verde Project | Leverage via Development-Stage JV in Mexico
Development stage project with excellent infrastructure,
provides leverage to higher copper prices
60% ownership with Teck Resources holding 40%
Located in Michoacán state, ~ 320 km west of Mexico City
Michoacán is rich in natural resources; Mining is a leading
industry with significant production of gold, silver, zinc, iron
and copper
Excellent Infrastructure: Close proximity to highway, railway,
power, port and water
500-year mining history, stable government and attractive
mining investment environment
Well-structured and supportive mining regulatory framework
Project with excellent infrastructure, provides leverage to
higher copper prices

Appendix

27
Warintza Project | Multiple-Times Growth Potential
Two Objectives: Starter Pit Growth, Overall Growth
World class inventory forms baseline for growth
1.5 Bt @ 0.5% CuEq (0.3 Bt @ 0.8% CuEq Starter Pit)
Resource drilling cut-off Nov 2021, growth drilling ongoing
Resource update due H2/23 targeting “Starter Pit” growth at
Warintza Central and overall resource growth at Warintza East
Multiple-times growth over long term within Warintza Cluster
1.Reported at a cut-off grade at 0.3% CuEq. Copper equivalent assumes recoveries of 90% Cu, 85% Mo, and 70% Au based on preliminary metallurgical test work, and metal prices
of US$3.50/lb Cu, US$15.00/lb Mo, and US$1,500/oz Au. CuEq formula: CuEq (%) = Cu (%) + 4.0476 × Mo (%) + 0.487 × Au (g/t). 2. Reported at a cut-off grade at 0.6% CuEq. No
economic analysis has been completed by the Company and there is no guarantee an ‘Indicative Starter Pit’ will be realized or prove to be economic. The ‘Indicative Starter Pit’ is
based on the same assumptions as the Resource except utilized metal prices of US$1.00/lb Cu, US$7.50/lb Mo, and US$750/oz Au.
Long Section
Cross Section

28
0
2
4
6
8
10
12
14
16
18
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
Number
of
Discoveries
Discovery Year
Copper Discovery Rate Remains Dismal
Source: 2023 S&P Global Market Intelligence
4.1 Mt Cu discovered in past 5 years —
huge fall from 70.6 Mt in 2013–17
2010: Muji,
2011: Cobre Panama, Timok, Cerro Negro, etc.
2012: Copa Sur
2013: Cascabel, Onto, Calingiri, West Musgrave
2014: Kamoa-Kakula, La Huifa, Jebel Ohier
2015: Cachorro
2016: Marimaca, Encierro
2017: Tatogga, Winu, Kainantu
2018: -
2019: Llaguen
2020: Porvenir, Julimar
2021: Chapada
2022: -

29
Dearth of Discoveries Leaves Pipeline Empty
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
0
20
40
60
80
100
120
140
160
Copper
Exploration
Budget
(US$M)
Copper
in
Major
Discoveries
(Mt)
Copper in reserves, resources & past production* Copper in recent initial resources Copper exploration budget
2010: Muji,
2011: Cobre Panama, Timok, Cerro Negro, etc.
2012: Copa Sur
2013: Cascabel, Onto, Calingiri, West Musgrave
2014: Kamoa-Kakula, La Huifa, Jebel Ohier
2015: Cachorro
2016: Marimaca, Encierro
2017: Tatogga, Winu, Kainantu
2018: -
2019: Llaguen
2020: Porvenir, Julimar
2021: Chapada
2022: -
Source: 2023 S&P Global Market Intelligence

30
Goldman Sachs Forecasting Record High Prices
Cuts to exploration & early-stage project development mean the size &
no. of copper projects is substantially lower than a decade ago
Copper projected to trade up to $15,000/t by mid-decade
to mitigate depletion risks
Long-term supply gap implies significant
further upside to copper prices
Long-term copper price near $10,000/t is needed to incentivize
to enough approvals to mitigate the record LT gap
Source: Goldman Sachs Global Investment Research, April 2021

31
Copper Sell-Offs: Bull vs Bear Market
Source: Goldman Sachs, How Low Can We Go, July 2022
1
1.5
2
2.5
3
3.5
4
4.5
5
2004 2006 2008 2010 2012 2014 2016 2018 2020 2022
US$/lb
22% fall
followed by
33% rise
32% fall
followed by
56% rise
70% fall
followed by
258% rise 36% fall
followed by
124% rise
31% fall
Selloffs in structurally
soft market are not
followed by a bounce
back in prices
Copper sell-offs in the prior structural bull market were short, sharp, but followed by strong rebounds
versus the prolonged commodity bear market that followed

32
Looming Shortages; Mine Development Lagging
Source: Glencore Investor Update – Dec 6, 2022

33
Electrification & Decarbonization Trends; Demand for Copper Increases
Global near-term passenger EV sales and share of new passenger vehicle sales by market
Cumulative global EV market opportunity by region – Economic Transition Scenario
Source: BloombergNEF’s 2023 Electric Vehicle Outlook. Note: ETS = Economic Transition Scenario. NZS = Net Zero Scenario.
Battery factory requirements include investment needed to meet EV demand as well as stationary energy storage.
Annual metals demand from lithium-ion batteries
under the Net Zero Scenario
Annual battery factory investment by scenario

34
Copper Outlook: Higher Long-Term Incentive Prices
Source: Scotiabank GBM estimates, Commodity Markets Are Tighter Than You Think, January 2023

35
Record Size Structural Deficits Fast Approaching
1. Goldman Sachs, How Low Can We Go, July 2022
2. S&P Global, The Future of Copper, July 2022
3. Based on Government timeline presented in the Ministry of Energy & Mines Ecuador, PDAC, June 13, 2022 presentation
Projected deficit:
2030: 7.6 Mt¹
2035: 9.9 Mt²
New discoveries now would not reach
production until mid-2030s; lead times
for projects lengthening due to social
and regulatory risks
Peak copper supply in 2024 as top 10 global mega
mines (25% supply) begin terminal decline due to
grades, depletion, water, and other constraints
S&P estimates copper demand will
double to over 50 Mt by 2050
Discovery
Exploration & Definition Feasibility, Permitting, Financing Construction Operation
Pre-Discovery Exploration
Warintza Construction
begins (est.)³
Rapid growth from copper-intensive energy transition applications
(power grid, renewables, EVs, charging network, batteries) on top
of steady 2.4% p.a. growth from traditional end uses

36
Source: BHP Climate Change Briefing -Sept 10, 2020, S&P Market Intelligence
Future-Facing
Commodities
Copper
•
Nickel
•
Potash
Robust demand growth from “electrification mega-trend” superimposed on growth
from traditional end uses
Supply shortfalls due to grade decline, resource depletion, increased input costs, water
constraints, and scarcity of quality projects
Gaping supply-demand gap cannot be filled with brownfield expansions; 6 Mtpa
production required from greenfield projects
BHP Copper Outlook: Sustained Upside for Prices
Strategic Focus for Majors
‘We need to secure more options
in copper… through exploration
and early stage entry in early-stage
resources in Canada, Mexico and
Ecuador’
- BHP Group CEO, Mike Henry
‘Copper is our preference. A bit like BHP,
we’d love a Tier 1, large-scale and low-cost
asset. Ideally, shallow and near the coast,
with good infrastructure would be ideal’
– Rio Tinto GM Exploration, Lynn
Olssen

37
3
10
12
6
4
1
2
3
4
5
2008 2009 2010 2011 2012 2013 2014
US$/lb)
Number of Transactions
Copper Price (US$/lb)
Solving Structural Deficit to Require Record M&A
Source: BMO Capital Markets M&A database for transactions greater than US$50M, FactSet. Historical results are no guarantee of the future performance. Undue reliance should not be
placed thereon when considering an investment in Solaris.
Post-GFC cycle - 35 transactions
Current cycle - structural deficits from 2024 on, largest supply shortfall in history by >2x… only 5 transactions announced to date:
MATSA - US$1.9B
Sierra Gorda (45%) - US$1.6B
Josemaria - US$0.5B
Turquoise Hill (49%) - US$3.3B
OZ Minerals - US$6.5B

Solaris Resources - September 2023

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