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6-K

Solaris Resources Inc. (SLSR)

6-K 2025-05-15 For: 2025-05-15
View Original
Added on April 11, 2026

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 6-K


Report of Foreign Private IssuerPursuant to Rule 13a-16 or 15d-16 ofthe Securities Exchange Act of 1934


For the month of May 2025


Commission File Number 001-42015


Solaris Resources Inc.

(Translation of registrant’s name into English)

Neuhofstrasse 5A BaarSwitzerland 6340

(Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40F:

Form 20-F ☐ Form 40-F ☒

Incorporation by Reference

Exhibits 99.1 and 99.2 to this Form 6-K of Solaris Resources Corp. (the “Company”) is hereby incorporated by reference as an exhibit to the Registration Statements on Form F-10 (File No. 333-280241) and Form S-8 (File No. 333-283247) of the Company, as amended or supplemented.

The following documents are being submitted herewith:

Exhibit Description
99.1 Condensed Consolidated Interim Financial Statements of Solaris Resources Inc. for the three months ended March 31, 2025
99.2 Management’s Discussion and Analysis of Solaris Resources Inc. for the three months ended March 31, 2025
99.3 Certification of Interim Filings Full Certificate of Solaris Resources Inc. in connection with filing of interim financial statements and interim MD&A by CEO dated May 14, 2025
99.4 Certification of Interim Filings Full Certificate of Solaris Resources Inc. in connection with filing of interim financial statements and interim MD&A by CFO dated May 14, 2025
1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Solaris Resources Inc.
(Registrant)
Date: May 15, 2025 By: /s/ Richard Hughes
Name: Richard Hughes
Title: Chief Financial Officer and Secretary

2

Exhibit 99.1

Solaris Resources Inc.

Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(Unaudited)

Solaris Resources Inc.

Condensed Consolidated Interim Statements of Financial Position

(Unaudited – In thousands of United States dollars)

Note March 31,<br> 2025 December 31,<br> 2024
Assets
Current assets
Cash and cash equivalents $ 14,242 $ 31,738
Prepaids and other 3, 13 778 842
15,020 32,580
Restricted cash 5 571 571
Exploration and evaluation assets 4 20,179 20,179
Property, plant and equipment 4,529 3,866
Total assets $ 40,299 $ 57,196
Liabilities and Equity
Current liabilities
Accounts payable and accrued liabilities $ 8,612 $ 12,839
Lease liability 184 216
8,796 13,055
Long-term liabilities
Lease liability 329 217
Reclamation provision 5 3,870 3,765
Loans and borrowings 6 50,746 49,206
Other long-term liability 293 240
Total liabilities 64,034 66,483
Shareholders’ equity
Common shares 7 245,100 244,718
Reserves 7 21,921 20,664
Deficit (298,650 ) (282,583 )
Equity attributable to shareholders of the Company (31,629 ) (17,201 )
Non-controlling interests 7,894 7,914
Total shareholders’ equity (23,735 ) (9,287 )
Total liabilities and equity $ 40,299 $ 57,196

Nature of operations and going concern (Note 1)

Commitments (Notes 6(b), 8, 11(c), 13)

Subsequent event (Note 15)

Page 2 of 15

Solaris Resources Inc.

Condensed Consolidated Interim Statements of Net Loss and Comprehensive Loss

For the three months ended March 31, 2025 and 2024

(Unaudited - In thousands of United States dollars, except share and per share amounts)

For the three months ended<br><br> March 31,
Note 2025 2024
Exploration expenses 8 $ 12,317 $ 10,193
General and administrative expenses 9 2,931 2,146
Loss from operations 15,248 12,339
Finance cost 1,548 1,027
Interest income, other income and loan foreign currency revaluation, net (708 ) (614 )
Net loss $ 16,088 $ 12,752
Other comprehensive loss (income)
Items that may be reclassified to profit or loss:
Foreign currency translation (265 ) 147
Total comprehensive loss $ 15,823 $ 12,899
Net loss attributable to:
Shareholders of the Company $ 16,068 $ 12,731
Non-controlling interest 20 21
$ 16,088 $ 12,752
Total comprehensive loss attributable to:
Shareholders of the Company $ 15,803 $ 12,878
Non-controlling interest 20 21
$ 15,823 $ 12,899
Net loss per share attributable to shareholders of the Company
Basic and diluted $ 0.10 $ 0.08
Weighted average number of shares outstanding
Basic and diluted 163,415,726 150,813,530

The accompanying notes form an integral partof these condensed consolidated interim financial statements.

Page 3 of 15

Solaris Resources Inc.

Condensed Consolidated Interim Statements of Cash Flows

For the three months ended March 31, 2025 and 2024

(Unaudited - In thousands of United States dollars, except share and per share amounts)

For the three months ended<br><br> March 31,
Note 2025 2024
Cash provided by (used in):
Operations
Net loss for the period $ (16,088 ) $ (12,752 )
Adjustments for:
Finance cost 1,548 1,027
Finance income (211 ) (469 )
Foreign exchange and other 255 (79 )
Share-based compensation 7 1,072 829
Amortization 218 235
Reclamation provision 88 333
Gain on loss from lease termination (12 )
Net changes in non-cash working capital items:
Prepaids and other 47 (671 )
Accounts payable and accrued liabilities (4,222 ) 1,518
Reclamation provision settlement (1 ) (1 )
Other long-term liability 54 (14 )
(17,252 ) (10,044 )
Financing
Proceeds from private placements of common shares 7 244
Share issuance and loan finance costs paid (5 )
Deferred share issue costs paid (184 )
Proceeds from the exercise of stock options 56 2
Payment of lease liability (57 ) (44 )
Finance income received and other, net 253 458
496 227
Investing
Capital expenditures (764 ) (242 )
(764 ) (242 )
Effect of exchange rate change on cash and cash equivalents 24 (33 )
Decrease in cash and cash equivalents (17,496 ) (10,092 )
Cash and cash equivalents, beginning of period 31,738 38,865
Cash and cash equivalents, end of period $ 14,242 $ 28,773

Supplemental cash flow information (Note 14)

The accompanying notes form an integral partof these condensed consolidated interim financial statements.

Page 4 of 15

Solaris Resources Inc.

Condensed Consolidated Interim Statements of Changes in Equity

For the three months ended March 31, 2025 and 2024

(Unaudited - In thousands of United States dollars, except share and per share amounts)

Share Capital Reserves
Note Number of Shares Amount Options, RSUs and warrants Foreign currency translation Total Deficit Non-<br><br> controlling<br><br> interest Total equity
Balance, December 31, 2024 163,234,932 $ 244,718 $ 18,546 $ 2,118 $ 20,664 $ (282,582 ) $ 7,914 $ (9,286 )
Private placement equity financing 7 83,333 244 244
Shares issued on exercise of stock options 7 182,062 138 (82 ) (82 ) 56
Share-based compensation 7 1,074 1,074 1,074
Net loss and comprehensive loss 265 265 (16,068 ) (20 ) (15,823 )
Balance, March 31, 2025 163,500,327 $ 245,100 $ 19,538 $ 2,383 $ 21,921 $ (298,650 ) $ 7,894 $ (23,735 )
Balance, December 31, 2023 150,811,195 $ 206,357 $ 15,148 $ 1,576 $ 16,724 $ (205,566 ) $ 7,911 $ 25,426
Share issue costs (1 ) (1 )
Shares issued on exercise of stock options 7 4,166 4 (2 ) (2 ) 2
Share-based compensation 7 829 829 829
Net loss and comprehensive loss (147 ) (147 ) (12,731 ) (21 ) (12,899 )
Balance, March 31, 2024 150,815,361 206,360 15,975 1,429 17,404 (218,297 ) 7,890 13,357

The accompanying notes form an integral partof these condensed consolidated interim financial statements.

Page 5 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

1. NATURE OF OPERATIONS AND<br> GOING CONCERN

Solaris Resources Inc. (the “Company” or “Solaris”) was incorporated under the Business Corporations Act of British Columbia on June 18, 2018 as a wholly owned subsidiary of Equinox Gold Corp. (“Equinox”). Equinox subsequently completed a spin-out of Solaris pursuant to a plan of arrangement (the “Arrangement”). Solaris’ common shares trade on the Toronto Stock Exchange under the symbol “SLS” and the NYSE American under the symbol “SLSR”.

The Company is engaged in the acquisition, exploration and development of mineral property interests. The Company’s assets consist primarily of the Warintza property (“Warintza”) in Ecuador, the 60% owned La Verde property (“La Verde”) in Mexico and the Tamarugo property (“Tamarugo”) in Chile. The Company has not yet determined whether the properties contain mineral reserves where extraction is both technically feasible and commercially viable. The business of mining and exploration for minerals involves a high degree of risk and there can be no assurance that such activities will result in profitable mining operations.

These consolidated financial statements have been prepared in accordance with IFRS Accounting Standards applicable to a going concern, which assumes that the Company will be able to realize its assets and discharge its liabilities in the normal course of operations as they come due for the foreseeable future. The Company does not generate operating cash flow from a producing mine and has incurred operating losses to date. The Company has relied on cash received from share issuances and advances from the senior secured debt facility (the “Senior Loan”) to fund its business activities, including planned corporate expenditures, exploration expenses, as well as the development activities for the Warintza project. The Company’s ability to continue as a going concern is dependent upon the successful execution of its business plan, meeting certain Warintza project milestones, raising additional capital and/or evaluating strategic alternatives for its mineral property interests. The Company expects to continue to raise the necessary funds primarily through advances from the Senior Loan (see below), and/or the issuance of common shares in support of its business objectives. While the Company has been successful in securing financing to date, there can be no assurances that future equity financing, debt facilities or strategic alternatives will be available on acceptable terms to the Company or at all.

As at March 31, 2025, the Company had cash and cash equivalents of $14,242. In December 2023, the Company entered into definitive agreements to a financing package consisting of up to $80,000 in financing including a $60,000 Senior Loan of which $45,000 has been received to date with the remaining amount to be made available in a final tranche based on achieving certain milestones. There are no guarantees that the Company will meet the conditions to receive the additional amount under the financing package. In addition, the Senior Loan has a financial covenant which requires the Company to maintain an unrestricted cash balance of $5,000 in Canada. Subsequent to March 31, 2025, the Company obtained a waiver from the lender of the Senior Loan to allow the Company to accelerate the drawdown of the remaining $15,000 of the Senior Loan (note 15). Based on its current forecasted expenditures, the Company requires the additional financing from the Senior Loan or additional new financing to fund ongoing operations for the next twelve months and to ensure it meets the covenant requirement under the Senior Loan. As a result, material uncertainty exists that casts significant doubt about the Company’s ability to continue as a going concern. These consolidated financial statements do not reflect the adjustments to the carrying values of assets and liabilities, the reported expenses and the consolidated statement of financial position classifications that would be necessary if the going concern assumption was inappropriate. These adjustments could be material.

2. Basis of preparation

Statement of compliance

These condensed consolidated interim financial statements have been prepared in accordance with International Financial Accounting Standard 34 (“IAS 34”), Interim Financial Reporting, and do not include all of the information required for annual financial statements prepared in accordance with IFRS Accounting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). However, selected explanatory notes are included to explain events and transactions that are significant to an understanding of the changes in the Company’s financial position and performances since the last annual financial statements.

These condensed consolidated interim financial statements should be read in conjunction with the Company’s most recent annual audited financial statements for the year ended December 31, 2024. The accounting policies, significant judgments made by management in applying these policies and key sources of estimation uncertainty are the same as those applied in the Company’s annual audited consolidated financial statements for the year ended December 31, 2024.


These condensed consolidated interim financial statements were approved and authorized for issuance by the Board of Directors on May 15, 2025.


Page 6 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

3. prepaids and other
Note March 31,<br> 2025 December 31,<br><br> 2024
--- --- --- --- --- ---
Prepaid expenses and deposits $ 507 $ 534
Supplies inventory 117 143
Taxes recoverable 86 101
Amounts receivable and other 43 38
Due from a related party 25 26
$ 778 $ 842
4. Exploration and evaluation assets
--- ---
Note March 31,<br> 2025 December 31, <br><br> 2024
--- --- --- --- --- ---
La Verde (Mexico) a) $ 19,741 $ 19,741
Warintza (Ecuador) b) 188 188
ENAMI Concessions (Ecuador) c) 250 250
$ 20,179 $ 20,179
a) La Verde
--- ---

La Verde is situated in the Sierra Madre del Sur west of Mexico City in Michoacán State, Mexico and consists of the Unificación Santa Maria claim. The project is held 60% by the Company and 40% by a subsidiary of Teck Resources Ltd. The joint venture agreement governing the operation and funding of La Verde was formalized effective February 28, 2015 (the “Agreement”). The Agreement provides that Solaris is the operator of the project. The Agreement further provides for dilution of either parties’ ownership should funding not be provided in accordance with their respective participating interests. La Verde is subject to a 0.5% net smelter royalty held by Minera CIMA, S.A. de C.V.

b) Warintza

The Company owns a 100% interest in Warintza. Warintza is located in southeastern Ecuador in the province of Morona Santiago, Canton Limon Indanza. It consists of nine mining concessions (the “Concessions”) covering a total of 26,774 hectares. The Concessions have a term of 25 years and can be renewed for additional periods of 25 years. South32 Royalty Investments Pty Ltd holds a 2% net smelter royalty on the original four concessions covering a total of 10,000 hectares.

c) ENAMI Concessions

Solaris has entered into an option agreement to acquire up to a 100% interest in 10 new explorations concessions from the Ecuadorian state-owned mining company, Empresa Nacional Minera (“ENAMI EP”). These concessions comprise a land package of ~40,000 hectares adjacent to the Warintza Project and the San Carlos-Panantza porphyry copper-molybdenum deposits in southeastern Ecuador.

The Company made an upfront payment to ENAMI EP of $250 on May 10, 2024 and, in order to exercise the option to acquire one or more of the 10 concessions, the Company is required to (i) incur exploration expenditures of $25,000 during the exploration phase of the concessions, as defined by the Ecuadorian Mining Law and (ii) pay the exercise price, the amount of which will be determined for each of the concessions that the Company elects to acquire by independent experts at the time of exercise. The term of the option agreement ends at the earlier of (i) the execution of the specific commercial agreement for each concession, which will stipulate a new term or (ii) four years from May 7, 2024 and is renewable with the agreement of the parties.

Page 7 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

d) Tamarugo

Tamarugo is a grass-roots copper porphyry target strategically located in northern Chile approximately 85 kilometres northeast of Copiapo and approximately 65 kilometres southwest of Codelco’s El Salvador Copper Mine. The Company owns a 100% interest in Tamarugo, which consists of claim blocks covering a total of approximately 12,300 hectares.

e) Other projects

Solaris has earn-in agreements on certain other projects including the Capricho and Paco Orco projects in Peru. The Capricho project is a 4,200-hectare copper-molybdenum-gold property. The Paco Orco project is a 4,400-hectare lead, zinc and silver property.

5. RECLAMATION PROVISION
March 31,<br> 2025 December 31,<br> 2024
--- --- --- --- --- --- ---
Balance, start of period $ 3,765 $ 1,529
Additions 46 2,244
Accretion 18 33
Settlement (1 ) (13 )
Change in estimate 42 (28 )
Balance, end of period $ 3,870 $ 3,765

The reclamation provision represents the estimated costs for restoration and rehabilitation for environmental disturbances at Warintza, estimated to be incurred in the year 2027. The total undiscounted estimated cash flows required to settle these obligations as at March 31, 2025 are $4,323 (December 31, 2024 – $4,274), which have been inflated at an average rate of 2.07% per annum (December 31, 2024 – 2.07%) and discounted at an average rate of 3.89% (December, 31, 2024 – 4.27%).

Restricted cash of $571 (December 31, 2024 – $571) represents funds being used to collateralize guarantees issued to support environmental bonding requirements with respect to the environmental disturbances at Warintza.

6. WARINTZA PROJECT FINANCING

On December 11, 2023, the Company entered into a financing package with OMF Fund IV SPV D LLC and OMF Fund IV SPV E LLC (collectively “OMF”), entities managed by Orion Mine Finance Management LP, to provide up to approximately $80,000 in aggregate funding for the advancement of the Warintza project in Ecuador. The financing package is comprised of a $60,000 Senior Loan, a subscription for $10,000 in common shares with a commitment for $10,000 in additional equity financing and a copper offtake agreement to purchase concentrate produced by the Warintza project. On December 19, 2023, the Company also signed a molybdenum offtake agreement with OMF.

a) Senior Loan –<br> OMF Fund IV SPV D LLC

A first advance of $30,000 was received on December 21, 2023. An additional advance of $15,000 was received on September 13, 2024. A subsequent advance of $15,000 will be made available upon the approval and adoption of a pre-feasibility study by the Company's Board of Directors.

Page 8 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

The following table sets out the details of the Company’s loans and borrowings as of March 31, 2025

March 31,<br> 2025 December 31,<br> 2024
Balance, start of period $ 49,206 $ 29,363
Advances 15,000
Transaction Costs (4 )
Accrued Interest 1,506 4,746
Amortization of transaction cost 34 101
Balance, end of period $ 50,746 $ 49,206

Amounts drawn on the Senior Loan bear interest payable quarterly at the higher of (a) adjusted term secured overnight financing rate (“SOFR”) and (b) 2.00%, plus either 7.00% per annum in the case of interest paid in cash, or 7.50% in the case of interest that is accrued to the loan balance in accordance with the Senior Loan agreement. At March 31, 2025, the Senior Loan is measured at amortized cost using an effective interest rate of 12.37% (December 31, 2024 – 12.80%).

The Company has the option quarterly to elect to pay the interest in cash or accruing it to the principal amount of the Senior Loan and pay it upon maturity. The quarterly interest for the period ended March 31, 2025 was accrued to the principal amount of the Senior Loan. The principal amount and all accrued and unpaid interest are due on its maturity date on December 11, 2027. The Company may prepay all or any part of the principal amount owing at any time without any premium or penalty.

Any net proceeds received by the Company from the sale of particular assets, the issuance of securities, or compensation for liquidated damages must be allocated toward repaying a portion or all of the Senior Loan, along with accrued interest. However, this repayment requirement does not apply to net proceeds raised from the issuance of securities, provided such net proceeds are: (i) used in connection with the Warintza project; or (ii) used for general corporate and administrative expenses unrelated to the Warintza project in an amount up to $2,500 annually.

The Senior Loan is secured by a first-priority security ranking over the Warintza property and all the presently held and acquired undertakings, property, and assets including the equity interests in, the Company’s wholly owned subsidiaries Lowell Mineral Exploration Ecuador S.A. and Lowell Copper Holdings Inc., but excluding subsidiaries and assets that are not related to the Warintza project. The Company must comply with certain covenants including maintaining a minimum unrestricted balance of $5,000 in cash in Canada.

b) Offtake agreements

Under the terms of the offtake agreements, OMF will purchase the greater of (i) 20% of the copper and molybdenum concentrates produced from the Warintza project in each contract year, and (ii) the percentage of production of concentrates required to deliver a minimum 30,000 tonnes of copper and 1,500 tonnes of molybdenum in each contract year as well as the corresponding amount of gold and silver contained in the copper concentrate.

The offtake agreements will expire 20 years after the achievement of commercial production as defined in the agreements. If commercial production has not been achieved by December 31, 2027, then the term will extend by one year for each calendar year that commercial production has not been achieved, and if commercial production has not been achieved by December 31, 2032, then the term is extended for the duration of the mine life as defined in the offtake agreements.

If prior to the 18-month anniversary of the Senior Loan closing date a change of control transaction (as defined in the offtake agreements) is approved by the Company’s board and announced, either party may terminate the offtake agreements prior to the end of the term which will require the Company to then pay $27,000 to OMF to terminate the copper offtake agreement and $3,000 to terminate the molybdenum offtake agreement.

Page 9 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

7. SHARE CAPITAL
a) Common shares
--- ---

Authorized: Unlimited common shares, with no par value

Issued and fully paid: 163,500,327 (December 31, 2024 – 163,234,932)

b) Share placement

On January 15, 2025, the Company issued 83,333 common shares at a price of C$4.20 for gross proceeds of $244 in a private placement.

c) Share purchase options

For the period ended March 31, 2025 the Company recognized a share-based compensation expense included in general and administrative expenditures of $1,072 (three months ended March 31, 2024 – $829). The following table shows the change in the shares issuable for Arrangement options and Solaris options during the three months ended March 31, 2025 and 2024:

As at March 31,<br> 2025 March 31,<br> 2024
Balance, start of period 14,165,000 10,556,688
Granted 900,000
Exercised (182,062 ) (4,166 )
Forfeited / Expired / Cancelled^1^ (192,938 ) (285,000 )
Balance, end of period 13,790,000 11,167,522

^^

^1^ Includes options<br> cancelled as part of an exercise on a cashless basis.

The weighted average exercise price per share issuable of options exercised and forfeited during the three months ended March 31, 2025 was C$0.80 and C$10.39, respectively. The weighted average exercise price per share issuable of options granted, exercised and forfeited during the three months ended March 31, 2024 was C$3.79, C$0.80 and C$5.03, respectively.

The assumptions used in the Black-Scholes option pricing model for the options granted in the three months ended March 31, 2025 and 2024 were as follows.

Weighted average 2025 2024
Exercise price per share issuable C$ C$ 3.79
Expected term (years) 5
Volatility^1^ 59 %
Expected dividend yield
Risk-free interest rate 3.55 %
Weighted average fair value per share 2.06
^1^ The expected<br> volatility of Solaris is based on the historical volatility of the shares of a comparative<br> peer group of companies.
--- ---
Page 10 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

The following is a summary of the Company’s outstanding and exercisable options as at March 31, 2025:

Outstanding Exercisable
Grant date Exercise price (C) Number of<br> options Weighted<br> average<br> remaining<br> contractual<br> life (years) Number of<br> options Weighted<br> average<br> remaining<br> contractual<br> life (years)
May 27, 2020 2,510,000 0.16 2,510,000 0.16
November 2, 2020 2,025,000 0.59 2,025,000 0.59
March 16, 2021 300,000 0.96 300,000 0.96
August 9, 2022 300,000 2.36 150,000 2.36
February 24, 2023 2,775,000 2.90 1,687,500 2.90
February 23, 2024 900,000 3.90 425,000 3.90
September 18, 2024 2,415,000 4.47 200,000 4.47
October 4, 2024 305,000 4.52 - -
November 19, 2024 1,300,000 4.64 150,000 4.64
December 13, 2024 175,000 4.71 - -
December 20, 2024 300,000 4.73 - -
December 27, 2024 485,000 4.75 - -
13,790,000 2.68 7,447,500 1.39

All values are in US Dollars.

d) Restricted share units

Pursuant to the Arrangement, holders of Equinox restricted share units (“RSUs”) or RSUs with non-market-based performance vesting conditions (“pRSUs”) received RSUs or pRSUs of Solaris (“Arrangement RSUs”), which were proportionate to, and reflective of the terms of, their existing RSUs or pRSUs of Equinox. The holder of the Arrangement RSUs acquires one-tenth of a Solaris share upon vesting. During the three months ended March 31, 2025, there were no RSUs redeemed under the provision of the Company’s RSU plan and as of March 31, 2025, 260,836 RSUs and pRSUs are outstanding with 26,085 of Solaris shares issuable.

8. EXPLORATION EXPENDITURES

The Company’s exploration expenditures by activity are as follows:

For the three months ended March 31, 2025 2024
Salaries, geological consultants and support, and travel $ 3,965 $ 2,928
Site preparation, supplies, field and general 2,364 2,288
Drilling and drilling related costs 972 1,501
Assay and analysis 460 144
Community relations, environmental and permitting 2,172 1,934
Concession fees 459 452
Studies 1,619 378
Reclamation provision 88 333
Amortization 218 235
$ 12,317 $ 10,193

Pursuant to agreements with local communities, the Company is required to make certain monthly community support payments.

Page 11 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

The Company’s exploration expenditures by jurisdiction are as follows:

For the three months ended March 31, 2025 2024
Ecuador $ 10,810 $ 9,872
Chile 22 2
Mexico 53 52
Peru and other 1,432 267
$ 12,317 $ 10,193
9. General and administrative expenditures
--- ---
For the three months ended March 31, 2025 2024
--- --- --- --- ---
Share-based compensation $ 1,072 $ 829
Salaries and benefits 1,063 462
Office and other 332 242
Filing and regulatory fees 52 75
Professional fees 305 357
Marketing and travel 107 181
$ 2,931 $ 2,146
10. Segmented information
--- ---

The Company has determined that it has one operating segment, being the exploration of mineral properties.

Information about the Company’s non-current assets by jurisdiction is detailed below:

For the three months ended March 31, 2025 2024
Mexico $ 19,749 $ 19,753
Ecuador 5.455 2,636
Chile 7 10
Peru 68 117
Canada - 6
$ 25,279 $ 22,522

Information about the Company’s exploration expenditures by jurisdiction is detailed in Note 8.

11. Financial instrument risk exposure and risk<br> management

The Company is exposed in varying degrees to a variety of financial instrument related risks. The Board of Directors approves and monitors the risk management process.

a) Credit risk

Credit risk is the risk of financial loss to the Company if a counterparty to a financial instrument fails to meet its contractual obligations and arises principally from the Company’s financial assets.

The Company is primarily exposed to credit risk on its cash and cash equivalents and amounts receivable. Credit risk exposure is limited through maintaining its cash with high-credit quality financial institutions. The carrying value of these financial assets of $15,071 represents the maximum exposure to credit risk.

Page 12 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

b) Interest rate risk

Interest rate risk is the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market interest rates. The Company’s exposure to the risk of changes in market interest rates relates primarily to the Senior Loan which has a floating interest rate.

With all other variables held constant, a 1% change in secured overnight financing rate would have changed net loss by approximately $125 for the period ended March 31, 2025 (March 31, 2024 – $75).

c) Liquidity risk

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company ensures that there is sufficient capital in order to meet short term business requirements after taking into account the Company’s holdings of cash (Note 1).

At March 31, 2025, the Company had contractual cash flow commitments as follows:

< 1 Year 1-3 Years 4-5 Years > 5 Years Total
Accounts payable and accrued liabilities $ 8,612 $ $ $ $ 8,612
Lease liabilities 184 329 513
Senior loan principal and interest^1^ 71,350 71,350
Exploration expenses and other 808 1,235 2,043
$ 9,604 $ 72,914 $ $ $ 82,518

^^

^1^ The interest<br> is calculated using the interest rate in effect at March 31, 2025.
d) Foreign currency risk
--- ---

The Company is exposed to currency risk on transactions and balances in currencies other than the functional currency. At March 31, 2025, the Company had not entered into any contracts to manage foreign exchange risk.

The functional currency of the Company is the Canadian dollar, therefore, the Company is exposed to currency risk from the assets and liabilities denominated in the US dollar. As at March 31, 2025, cash of $905 (December 31, 2024 – $15,858), loans and borrowings of $50,746 (December 31, 2024 – $49,206), and accounts payable and accrued liabilities of $403 (December 31, 2024 - $421) are denominated in the US dollar. For the period ended March 31, 2025, if the US dollar to Canadian dollar currency exchange rate changes by 5% with all other variables held constant, the impact on the Company’s net loss for the three months ended March 31, 2025 would be $2,516 (March 31, 2024 – $164).

The Company is also exposed to currency risk on financial assets and liabilities denominated in Peruvian soles, Mexican pesos and Guatemalan quetzals. However, the impact on such exposure is not currently material.

12. Fair value measurements

The carrying values of cash and cash equivalents, amounts receivable, due from a related party, restricted cash and accounts payable and accrued liabilities approximate fair value due to their short terms to maturity. The fair value of loans and borrowings is $51,339. There were no transfers between fair value levels in the periods presented.

Page 13 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

13. Related party transactions

Compensation of key management personnel

Key management personnel include those persons having authority and responsibility for planning, directing and controlling the activities of the Company, and comprises the Company’s Chairman, President and Chief Executive Officer, Chief Financial Officer, Chief Operating Officer and Directors.

Key management compensation for the three months ended March 31, 2025 and 2024 is comprised of the following:

For the three months ended March 31, 2025 2024
Share-based compensation $ 693 $ 655
Salaries and benefits 313 223
Professional fees 41
$ 1,006 $ 919

During 2021, the Company entered an agreement with Augusta Capital Corporation (“Augusta”) for consulting services. The owner of Augusta Capital Corporation is the Chairman and a major shareholder of the Company. The agreement with Augusta Capital Corporation was terminated on December 31, 2024. No amounts were charged by Augusta for the three months ended March 31, 2025 (three months ended March 31, 2024 – $41).

Related party transactions

On January 2, 2020, the Company entered into an arrangement to share office space, equipment, personnel, consultants and various administrative services with other companies related by virtue of certain directors and management in common. These services have been provided through a management company equally owned by each company party to the arrangement. Costs incurred by the management company are allocated and funded by the shareholders of the management company based on time incurred and use of services. All of the parties have jointly entered into a rental agreement for office space. On January 1, 2025, the Company terminated the arrangement to share office space, equipment, personnel, consultants and various administrative services with other companies related by virtue of certain directors and management in common. The agreed settlement cost associated with the termination of the agreement was $104.

The Company was charged for the following with respect to these arrangements in the three months ended March 31, 2025 and 2024:

For the three months ended March 31, 2025 2024
Salaries and benefits $ $ 367
Office and other 104 116
Filing and regulatory fees
Marketing and travel 5
$ 104 $ 488

Page 14 of 15

Solaris Resources Inc.

Notes to the Condensed Consolidated Interim Financial Statements

For the three months ended March 31, 2025 and 2024

(In thousands of United States dollars, unless otherwise noted)

14. Supplemental cash flow information
For the three months ended March 31, 2025 2024
--- --- --- --- ---
Non-cash items:
Accrued share issuance and finance costs $ - $ 113
Accrued interest expense $ 1,512 $ 986
Right of use asset acquired $ 126 $ 83
15. subsequent event
--- ---

On May 7, 2025, the Company entered into a waiver agreement with OMF relating to the drawdown requirements for the final $15,000 advance under the Senior Loan. The final advance is now available prior to the publication of a Pre-Feasibility Study (PFS) for the Warintza Project. The Company submitted a Notice of Drawdown and received the final $15,000 advance under the Senior Loan on May 14, 2025.

Page 15 of 15

Exhibit 99.2

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Introduction

This management’s discussion and analysis (“MD&A”) of Solaris Resources Inc. (the “Company”, “Solaris”, “we”, “us”, or “our”) covers the three months ended March 31, 2025, with comparative information for the three months ended March 31, 2024. This MD&A is dated May 15, 2025 and takes into account information available up to and including that date. This MD&A should be read in conjunction with the Company’s condensed consolidated interim financial statements for the three months ended March 31, 2025 and the annual consolidated financial statements for the year ended December 31, 2024, and the related notes contained therein, which are available on the Company’s website at www.solarisresources.com and on the System for Electronic Data Analysis and Retrieval (“SEDAR+”) at www.sedarplus.ca and on Electronic Data Gathering, Analysis, and Retrieval (“EDGAR”) at www.sec.gov. Additional information relating to the Company, including the Company’s Annual Information Form, is also set out on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov.

All dollar amounts reported herein are expressed in thousands of US dollars unless indicated otherwise.

Solaris was incorporated under the Business Corporations Act of British Columbia on June 18, 2018 as a wholly owned subsidiary of Equinox Gold Corp. (“Equinox”). Equinox subsequently completed a spin-out of Solaris pursuant to a plan of arrangement (the “Arrangement”). Solaris’ common shares (the “Common Shares”) are listed on the Toronto Stock Exchange (“TSX”) and trade under the symbol “SLS” as well as on the NYSE American LLC (“NYSE American”) and trade under the symbol “SLSR”.

CautionaryNote Regarding Forward-Looking Information


Certain information contained in this document constitutes forward-looking statements. All statements, other than statements of historical facts, are forward looking statements, including but not limited to statements with respect to future plans and objectives of Solaris; Solaris’ exploration plans, including plans for follow-up drilling and other work, that exploration activities continue to target growth of the MRE (as defined below), timing of such exploration plans, and potential results of such exploration plans; the Company’s plans for the ensuing year; the timing, content, and results of the Company’s upcoming MRE; the publication and timing of the pre-feasibility study (“PFS”); use of proceeds from the Company’s financings; closing of the undrawn portion of the Orion (as defined below) financing; drawdown of the Senior Loan (as defined below; approval of the Environmental Impact Assessment (“EIA”) for the Warintza Project (as defined below); that further funds may be required to fund future obligations and exploration plans; potential mineralization; exploration results; the availability of financial resources; capital, operating and cash flow estimates; and intentions for its Warintza Project in Ecuador. Forward-looking statements are often, but not always, identified by the use of words such as may, will, seek, anticipate, believe, plan, estimate, budget, schedule, forecast, project, expect, intend, or similar expressions.

The forward-looking statements are based on a number of assumptions which, while considered reasonable by the Company, are subject to risks and uncertainties, including assumptions made about the Company satisfying all closing conditions for the unclosed portion of the $80,000 financing; the Company’s ability to advance exploration and development efforts at its projects; the results of such exploration and development efforts; copper, gold and other base and precious metal prices; cut-off grades; accuracy of mineral resource estimates and resource modeling; timing and reliability of sampling and assay data; representativeness of mineralization; timing and accuracy of metallurgical test work; anticipated political and social conditions; expected government policy, including reforms; ability to successfully raise additional capital; and other assumptions used as a basis for preparation of the Company’s current technical reports. The Company cautions readers that forward-looking statements involve and are subject to known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements to differ materially from those expressed in or implied by such forward-looking statements and forward-looking statements are not guarantees of future results, performance or achievement.

Page 2 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

These risks, uncertainties and factors include the ability to raise funding to continue exploration, development and mining activities; debt risk; global economic conditions; limited supplies, supply chain disruptions and inflation; negative operating cash flow; uncertainty of future revenues or of a return on investment; no defined reserves with no mineral properties in production or under development; uncertainty relating to inferred mineral resources; speculative nature of mineral exploration and development; risks from international operations; risks associated with an emerging and developing market; relationships with, and claims by, local communities and Indigenous Groups; geopolitical risk; risks related to obtaining future environmental licenses for exploitation; permitting risk; Ecuadorian constitutional court rulings suspending licenses; anti-mining sentiment; failure to comply strictly with applicable laws, regulations and local practices; pressure from artisanal and illegal miners; risks associated with mining, exploration and development; land title risk; surface rights and access risks; changes in U.S. laws and policies regulating international trade; Middle Eastern conflicts; Russia-Ukraine conflict; global outbreaks and contagious diseases; fraud and corruption; ethics and business practices; future legal proceedings; tax regime in Ecuador; mineral assets being located outside Canada and held indirectly through foreign affiliates; commodity price risk; exchange rate fluctuations; joint ventures; property commitments; infrastructure; water management; properties located in remote areas; lack of availability of resources; dependence on highly skilled personnel; competition; significant shareholders; reputational risk; conflicts of interest; uninsurable risks; information systems; public company obligations; reliability of financial reporting and financial statement preparation; foreign subsidiary operations may impact the Company’s ability to fund operations efficiently; Common Share (as defined below) price fluctuation; value of Common Shares; future sales of Common Shares by existing shareholders; costs of land reclamation; measures to protect endangered species; environmental risks and hazards and changes in climate conditions; differences in U.S. and Canadian reporting of mineral reserves and resources; the Company’s “foreign private issuer” status; and claims under U.S. securities law.

Although the Company has attempted to identify important risks, uncertainties and other factors that could cause actual performance, achievements, actions, events, results or conditions to differ materially from those expressed in or implied by the forward-looking information, there may be other risks, uncertainties and other factors that cause performance, achievements, actions, events, results or conditions to differ from those anticipated, estimated or intended. Unless otherwise indicated, forward-looking statements contained herein are as of the date hereof and the Company disclaims any obligation to update any forward-looking statements, whether due to new information, future events or results or otherwise, except as required by applicable law.

Cautionary Note Regarding Presentation of Mineral Reserve and Mineral Resource Estimates

This MD&A was prepared in accordance with Canadian standards for reporting of mineral resource estimates, which differ from United States standards. In particular, and without limiting the generality of the foregoing, the technical and scientific information contained and incorporated by reference in this MD&A was prepared in accordance with 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) under the guidelines set out in the Canadian Institute of Mining, Metallurgy and Petroleum Standards for Mineral Resources and Mineral Reserves, Definitions and Guidelines (the “CIM Standards”), which differs from the standards adopted by the U.S. Securities and Exchange Commission (the “SEC”) under the U.S. Securities Exchange Act of 1934, as amended (the “Exchange Act”). Accordingly, estimates of the Company’s mineral reserves and mineral resources, and other technical and scientific information included or incorporated by reference in this MD&A, may differ materially from the information that would be disclosed by a United States company subject to the SEC standards under the Exchange Act.

Description of Business

Solaris is a copper-gold exploration and development company, committed to a sustainable future by empowering communities and stakeholders through our dedication to participatory and responsible mining. The Warintza Project, a large copper-gold porphyry deposit, is a unique, global scale asset located in southeast Ecuador. The Company also owns a series of grassroot exploration projects with discovery potential in Peru and Chile and a 60% interest in the La Verde joint-venture project with a subsidiary of Teck Resources in Mexico.

Page 3 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Highlights and Activities

The following activities and developments were achieved during the quarter:

Announced<br> the expansion of the Solaris leadership team as well as announcing that the final emigration<br> steps are complete, subject to a few administerial matters.
Signed a Letter of Intent (“LOI”) with the Pueblo Shuar<br>Arutam (“PSHA”) to establish an inter-institutional working group alongside the host communities of Warints and Yawi and the<br>Ecuadorian State, aiming to advance dialogue towards a cooperation agreement. The Company has completed its resource drilling program<br>at Warintza and expects to publish an updated Mineral Resource Estimate (“MRE”) in mid-2025, based on over 80,000 meters of<br>drilling. This update will be incorporated into the PFS, scheduled for release in Q3 2025.
--- ---

Subsequent to quarter-end:

The<br> Company announced the completion of a significant drilling campaign at its flagship Warintza<br> Project in southeastern Ecuador, alongside key developments that continue to strategically<br> de-risk and enhance the value of this globally significant copper asset.
The Company entered into a waiver agreement with Orion relating<br>to the drawdown requirements for the final $15,000 advance under the Senior Loan. The final advance is now available prior to the publication<br>of a Pre-Feasibility Study (PFS) for the Warintza Project. The Company submitted a Notice of Drawdown and received the final $15,000<br>advance under the Senior Loan on May 14, 2025.
--- ---

OUTLOOK

Following the submission of the EIA for the Warintza Project for regulatory review and approval, submitted in August 2024, the Company is working alongside the Government of Ecuador’s technical teams and expects to receive the technical approval for the project around mid-year 2025.

In addition, between January 2024 and February 2025, Solaris completed over 82,000 metres of infill drilling, positioning the Company to upgrade a substantial portion of Inferred Resources to the Measured and Indicated categories. An updated MRE, targeted for Q3 2025, will incorporate this data, adding precision and confidence ahead of economic studies and advancing the Warintza Project toward development. The drilling campaign also included more than 15,000 metres of geotechnical, hydrogeological and metallurgical holes that will support the technical studies for the project.

Solaris is simultaneously performing work to unlock value across its broader 100%-owned land package of over 260 km², which contains several high-priority regional targets. Step-out field exploration activities are ongoing.

As announced in May 2024, the Company has been working alongside leading international consulting firms, including: Ausenco Engineering, Knight Piésold Consulting and AMC Consultants to deliver a PFS. Solaris is advancing its PFS with completion targeted for Q3 2025. Work will then transition into the Bankable Feasibility Study, to advance a fully optimized and financeable development plan.

The receipt of the technical approval for the EIA for the Warintza Project in addition to the publication of the PFS will form the basis for the Exploitation permitting application, working alongside the Government of Ecuador’s technical teams. The Company will look to begin this process in late 2025.

Solaris remains committed to its participatory mining model, fostering strong local partnerships and social license while building long-term value for all stakeholders. With sustained progress across technical, environmental, and social fronts, the Company is on track to deliver a Final Investment Decision by year-end 2026, a pivotal milestone aligned with a robust global copper market outlook.

Page 4 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Warintza


Warintza is a large-scale porphyry copper-molybdenum-gold project located in southeastern Ecuador in the province of Morona Santiago, Canton Limon Indanza, north of the Mirador copper-gold mine (owned by CRCC-Tongguan) and the Fruta del Norte gold mine (owned by Lundin Gold) and adjacent to the San Carlos-Panantza copper project (owned by CRCC-Tongguan) (the “Warintza”, the “Warintza Project” or the “Project”).

The property includes nine metallic mineral concessions covering 26,774 hectares. Four concessions with an area of 9,997 hectares are permitted for exploration activities including drilling and path construction. South32 Royalty Investments Pty Ltd. holds a 2% net smelter royalty on the original four concessions. Concessions have a term of 25 years and can be renewed for additional periods of 25 years. As at March 31, 2025, the Company has incurred approximately $218,000 in exploration expenses at Warintza.

Warintza enjoys the support of its local Shuar Centres of Warints and Yawi with whom the Company shares an IBA, which was first signed in September 2020, renewed in March 2022 and again renewed in April 2024. The IBA provides certainty of community support for the responsible advancement of the Warintza Project from exploration and development through to production and is a major milestone in the Company’s innovative corporate social responsibility program. This was the first IBA established in Ecuador and set the precedent for industry best practice for inclusive and mutually beneficial resource development in partnership with Indigenous Peoples. The IBA formalizes commitments toward supporting partner communities in their social and cultural practices. It also provides for eliminating or mitigating adverse impacts, employment, contracting and business opportunities supported by a robust program of education, skills and training together with community infrastructure development and financial benefits to maximize community participation and positive outcomes for Indigenous Peoples. In March 2024, Solaris announced a trilateral cooperation agreement with FICSH, the highest authority and largest Shuar indigenous organization legally established by statute of the Ministry of Social Welfare of Ecuador in 1964 and includes 50 associations comprising 500 Shuar communities and approximately 143,000 Shuar indigenous people, and with the AEI of Ecuador. The agreement aims to promote the economic and social development of Shuar communities represented by FICSH, including the communities of Warints and Yawi, with programs in health, education, skills training, entrepreneurship, innovation and sustainable mineral resource development.

Further to the above, on January 18, 2025, at the Yawi Shuar Center, the PSHA resolved to form the working group and on February 5, 2025, ratified this process by the signing of the LOI with Solaris. The PSHA, located in the southeast of the province Morona Santiago, is made up of nearly ten thousand people organized into 47 Shuar centers. The objective of the Inter-Institutional working group and its subsequent ratification through the signing of the LOI is to develop transparent dialogue processes and workshops in order to promote the signing of a future Cooperation Agreement, under the consent of the communities.

In July 2024, the Company reported the results of an updated MRE for the Warintza Project with In-Pit Measured and Indicated Mineral Resources of 909 Mt at 0.53% CuEq (0.37% Cu, 0.02% Mo, 0.05 g/t Au) and additional Inferred Mineral Resources of 1,426 Mt at 0.37% CuEq (0.27% Cu, 0.01% Mo, 0.04 g/t Au) at a base case 0.25% CuEq cut-off grade.

The Warintza Project successfully completed a phase change of the environmental license from initial exploration to advanced exploration following the completion of an EIA and community consultation process in late 2022. The Company continues to work with the Government of Ecuador on obtaining key permits and licenses for the advancement of the Project.

In December 2022, Solaris and the Government of Ecuador signed an Investment Contract for the Warintza Project which provides for the following protections and incentives for the duration of the title of the Project which extends with renewal to 2066: security of investment, stability of mining law, stability of taxes at a reduced income tax rate of 20% (25% previously), exemption from capital outflow tax (5% previously), exemption from import duties (up to 5% previously), and detailed procedures for dispute resolution and international arbitration protection.

Page 5 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

La Verde


La Verde is situated in the Sierra Madre del Sur west of Mexico City in Michoacán State, Mexico and consists of the Unificación Santa Maria claim. The project is accessible year-round by paved roads and is strategically located next to key infrastructure with easy access to water, power and rail.

The project is held 60% by the Company and 40% by a subsidiary of Teck Resources Ltd.

The joint venture agreement governing the operation and funding of La Verde was formalized effective February 28, 2015 (the “La Verde Agreement”). The La Verde Agreement provides that Solaris is the operator of the project. The La Verde Agreement further provides for dilution of either parties’ ownership should funding not be provided in accordance with their respective participating interests. La Verde is subject to a 0.5% net smelter royalty held by Minera CIMA, S.A. de C.V.

ENAMI CONCESSIONS


Solaris has entered an option agreement to acquire up to a 100% interest in 10 new explorations concessions from the Ecuadorian state-owned mining company, ENAMI EP. These concessions comprise a land package of ~40,000 hectares adjacent to the Warintza Project and the San Carlos-Panantza porphyry copper-molybdenum deposits in southeastern Ecuador. The new concessions are interpreted to host porphyry copper and epithermal gold potential.

The Company made an upfront payment to ENAMI EP of $250 and, in order to exercise the option to acquire one or more of the 10 concessions, the Company is required to (i) incur exploration expenditures of $25,000 during the exploration phase of the concessions, as defined by the Ecuadorian Mining Law; and (ii) pay the exercise price, the amount of which will be determined for each of the concessions that the Company elects to acquire by independent experts at the time of exercise. The term of the option agreement ends at the earlier of (i) the execution of the specific commercial agreement for each concession, which will stipulate a new term; or (ii) four years from May 7, 2024 and is renewable with the agreement of the parties.

Fieldwork at the new ENAMI EP exploration concessions have identified targets with a similar signature across multiple layers of data to Warintza. A number of porphyry copper targets have been identified by open-ended annular magnetic highs enclosing magnetic lows and erosional depressions, consistent with outcropping deposits within the Warintza porphyry cluster for follow-up.

Tamarugo

Tamarugo is a grass-roots copper porphyry target strategically located in northern Chile approximately 85 kilometres northeast of Copiapo and approximately 65 kilometres southwest of Codelco’s El Salvador Copper Mine. The Company owns a 100% interest in Tamarugo, which consists of claim blocks covering a total of approximately 12,300 hectares.

Other projects

Solaris has earn-in agreements on certain other projects including the Capricho and Paco Orco projects in Peru. The Capricho project is a 4,200-hectare copper-molybdenum-gold property. The Paco Orco project is a 4,400-hectare lead, zinc and silver property. Solaris is focused on obtaining surface access agreements with local landholders and communities for the purposes of permitting exploration programs at both Capricho and Paco Orco.

Page 6 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Exploration expenses

The following tables summarize exploration expenses by activity and jurisdiction.

For the three months ended March 31, 2025:

Ecuador Mexico Chile Peru and<br><br> other Total
Salaries, geological consultants and support, and travel $ 2,622 $ $ $ 1,343 $ 3,965
Site preparation, supplies, field and general 2,281 24 22 37 2,364
Drilling and drilling related costs 972 972
Assay and analysis 460 460
Community relations, environmental and permitting 2,140 32 2,172
Concession fees 431 28 459
Studies 1,619 1,619
Reclamation provision 88 88
Amortization 197 1 20 218
$ 10,810 $ 53 $ 22 $ 1,432 $ 12,317

For the three months ended March 31, 2024

Ecuador Mexico Chile Peru and<br><br> other Total
Salaries, geological consultants and support, and travel $ 2,754 $ $ $ 174 $ 2,928
Site preparation, supplies, field and general 2,222 19 47 2,288
Drilling and drilling related costs 1,501 1,501
Assay and analysis 144 144
Community relations, environmental and permitting 1,896 38 1,934
Concession fees 420 32 452
Studies 378 378
Reclamation provision 333 333
Amortization 224 1 2 8 235
$ 9,872 $ 52 $ 2 $ 267 $ 10,193

The increase in exploration expenses to $12,317 for the three months ended March 31, 2025, from $10,193 for the three months ended March 31, 2024, was primarily related to the increase in the salaries, geological consultants and support, and studies activities at Warintza in Ecuador.

Salaries, geological consulting and support, and travel costs were higher in Ecuador for the three months ended March 31, 2025, compared to the same period in 2024, mainly due to the increase in geological consultants’ costs in support of drilling activities, as well as higher mobilization of supplies, materials and personnel to and within the site.

The increase in site preparation, supplies, field and general costs was due to higher expenses related to the maintenance of the Warints – Limon road which required additional excavator rental, machinery and transportation. There was also an increase in civil engineering and infrastructure costs resulting from additional Kallpa rotative and technical personnel who focused on road maintenance of the Warints – Limon road. Other consultant costs were also higher than previous quarter primarily due to an increase in geology technical consulting support required including for the logging and analysis of core samples and due to higher paramedic consultants costs and assistants support to assist the additional rotative and technical personnel.

Page 7 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Drilling and drilling-related costs at Warintza, decreased for the three months ended March 31, 2025, compared to the same period in 2024 due to lower meters drilled 5,079 meters vs 6,569 meters.

Pursuant to agreements with local communities, the Company is required to make certain monthly community support payments, included in community relations, environmental, and permitting costs. Community relations, environmental, and permitting costs increased for the three months ended March 31, 2025, compared to the same period in 2024, due to the regulatory permitting fees incurred to obtain the advanced exploration environmental license for the Warintza Project.

Reclamation provision represents the estimated costs for restoration and rehabilitation for environmental disturbances at Warintza. For the three months ended March 31, 2025, the reclamation provision expensed was higher than the prior year primarily due to additional drilling platforms and expansion of the existing ones for the infill drilling programme. This includes consideration of the advance exploration EMP.

Loss from Operations

Three Months Ended March 31, 2025 Comparedto the Three Months Ended March 31, 2024


The Company incurred exploration expenses of $12,317 for the three months ended March 31, 2025 (March 31, 2024 – $10,193). The increase is mainly attributable to the continued increase in exploration and drilling activities at Warintza.

The Company incurred general and administrative expenses of $2,931 for the three months ended March 31, 2025 (March 31, 2024 – $2,146). The increase is mainly due to higher costs in professional fees as a consequence of the increase in exploration and drilling activities at Warintza partially.

Summary of Quarterly Financial Information

The Company’s quarterly financial statements are reported under IFRS, as applicable to interim financial reporting. The following table provides highlights from the quarterly results of the Company’s unaudited condensed consolidated interim financial statements for the past eight quarters.

2025<br> Q1 2024<br> Q4 2024<br> Q3 2024<br> Q2
Exploration expenses $ 12,317 $ 19,271 $ 17,659 $ 14,384
General and administration expenses 2,931 4,033 2,808 2,482
Net loss 16,088 25,881 20,805 17,643
Comprehensive loss 15,823 25,491 20,671 17,478
Net loss attributable to Solaris shareholders 16,068 25,868 20,651 17,633
Net loss per share – basic and diluted $ 0.10 $ 0.16 $ 0.13 $ 0.12
2024<br> Q1 2023<br> Q4 2023<br> Q3 2023<br> Q2
--- --- --- --- --- --- --- --- ---
Exploration expenses $ 10,193 $ 6,869 $ 7,001 $ 7,682
General and administration expenses 2,146 2,778 2,323 2,485
Impairment of exploration and evaluation assets 251
Change in fair value of derivatives – loss (gain)
Net loss 12,752 10,049 9,060 9,996
Comprehensive loss 12,899 9,873 9,311 9,616
Net loss attributable to Solaris shareholders 12,731 10,037 9,039 9,973
Net loss per share – basic and diluted $ 0.08 $ 0.07 $ 0.06 $ 0.06

The Company has not generated any income to date other than interest income. Exploration expenditures in the three months ended March 31, 2025 were lower than the three months ended December 31, 2024, reflecting reduced drilling activities at the Warintza Project.

Page 8 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Liquidity and Capital Resources

March 31,<br> 2025 December 31,<br> 2024
Cash and cash equivalents $ 14,242 $ 31,738
Prepaids and other 778 842
Accounts payable and accrued liabilities 8,612 12,839
Lease liability – current 184 216
Total current assets 15,020 32,580
Total current liabilities $ 8,796 $ 13,055

Cash used in operating activities during the three months ended March 31, 2025 was $17,252 (March 31, 2024 – $10,044). The increased use of cash during the three months ended March 31, 2025, compared to the same period in 2024, is primarily attributable to the increase in exploration expenses. Cash used in operating activities was also impacted by the timing of receipts and payments from non-cash working capital items, primarily accounts payable and accrued liabilities.

Cash outflow from investing activities during the three months ended March 31, 2025 was $764 (March 31, 2024 – $242). The increase in cash outflow from investing activities for the three months ended March 31, 2025, relates primarily to more purchases of equipment and infrastructure at Warintza compared to the three months ended March 31, 2024.

The Company does not generate operating cash flow from a producing mine and has incurred operating losses to date. The Company has relied on cash received from share issuances and loan financing to fund its business activities, including planned corporate expenditures, exploration expenses, as well as the development activities for the Warintza Project.

The condensed consolidated interim financial statements have been prepared in accordance with IFRS applicable to a going concern, which assumes that the Company will be able to realize its assets and discharge its liabilities in the normal course of operations as they come due for the foreseeable future.

As at March 31, 2025, the Company had cash and cash equivalents of $14,242. In December 2023, the Company entered into definitive agreements to a financing package consisting of up to $80,000 in financing including a $60,000 senior secured debt facility (the “Senior Loan”) of which $45,000 has been received to date the remaining amount to be made available based on achieving certain milestones. There are no guarantees that the Company will meet the conditions to receive the additional amount under the financing package. In addition, the Senior Loan has a financial covenant which requires the Company to maintain an unrestricted cash balance of $5,000 in Canada..Subsequent to March 31, 2025, the Company obtained a waiver from the lender of the Senior Loan to allow the Company to accelerate the drawdown of the remaining $15,000 of the Senior Loan (note 15). Based on its current forecasted expenditures, the Company requires the additional financing from the Senior Loan or additional new financing to fund ongoing operations for the next twelve months and to ensure it meets the covenant requirement under the Senior Loan

Management is committed to diligently managing its liquidity and capital resources, including prioritizing spending in the areas of the business with the highest impact, such as advancing the development of the Warintza Project. Should it be necessary, Management has the ability to relatively quickly curtail cash outflows, including exploration expenditures, and to prudently manage the Company’s liquidity position to conserve cash resources. The Company’s ability to continue as a going concern is dependent upon the successful execution of its business plan, raising additional capital and/or evaluating strategic alternatives for its mineral property interests.

The Company expects to continue to raise the necessary funds primarily through the issuance of Common Shares and/or advances from the Senior Loan in support of its business objectives. While the Company has been successful in securing financing to date, there can be no assurances that future equity financing, debt facilities or strategic alternatives will be available on acceptable terms to the Company or at all, and therefore, a material uncertainty exists that casts significant doubt about the Company’s ability to continue as a going concern.

Page 9 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Financing Use of Proceeds

Orion Financing Package

In December 2023, the Company completed a financing package with OMF Fund IV SPV D LLC and OMF Fund IV SPV E LLC, entities managed by Orion Mine Finance Management LP (collectively, “Orion”), consisting of up to $80,000 in financing for the advancement of the Warintza Project in Ecuador. The Orion financing package includes a $60,000 Senior Loan of which $30,000 was received on closing, $15,000 received in September 2024, and the remaining $15,000 to be made available upon the approval and adoption by the Board of a PFS for the Warintza project. Additionally, $20,000 was received on issuance of Common Shares.

In relation to the $45,000 Senior Loan and $20,000 equity financing received by the Company, funds were spent in the following manner, as compared with the planned use of proceeds.

Planned use of proceeds of $65,000 Warintza Project Approximate use of proceeds spent to<br><br> March 31,<br><br>2025
The intended use of proceeds is (i) to fund the development and working capital requirements of the Warintza Project, including exploration, infill drilling, technical and environmental programs and studies, permitting and community social relations programs, and (ii) general corporate and administrative expenses of the Company in respect of the Warintza Project, while maintaining a minimum unrestricted cash balance of $5,000 in Canada. Salaries, geological consultants and support, and travel $ 13,691
Site preparation, supplies, field and general 12,996
Drilling and drilling related costs 5,476
Assay and analysis 469
Community relations, environmental and permitting 10,115
Concession fees 851
Studies 2,852
Reclamation provision settlement 12
Property, plant and equipment 1,521
Payment of lease liability 267
Working capital changes (2,845 )
Total $ 45,405

As at March 31, 2025, the Company has used the proceeds as intended, with approximately $45,405, of total spent to-date since the receipt of the proceeds to fund the development and working capital requirements of the Warintza Project, including exploration, environmental programs and studies, community social relations programs and general corporate and administrative expenses of the Company.

Private Placement

On January 15, 2025, the Company issued 83,333 Common Shares at a price of C$4.20 per Common Share for gross proceeds of $244 in a private placement.

Page 10 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Bought Deal Equity Offering

In relation to the bought deal equity offering received by the Company in June 2024, funds were spent in the following manner, as compared with the planned use of proceeds.

Planned<br> use of proceeds of 29,270 (C40,290), Approximate use of proceeds<br><br> spent to March 31, 2025
net of issue costs of<br>1,838 (C2,528) (in US) (in C$)
The intended use of proceeds is to: (i) fund an expanded exploration<br>and infill drilling program at the Warintza Project; (ii) fund regional exploration activities in prospective areas surrounding the Warintza<br>Project, including fieldwork on ten new exploration concessions which comprise a land package of approximately 40,000 hectares surrounding<br>the Warintza Project for which an option to acquire was awarded to the Company; and (iii) for working capital and general corporate purposes.
$ 5,474 7,856
2,926 4,199
5,310 7,620
1,069 1,534
54 77
12,599 18,082
$ 27,432 39,368

All values are in US Dollars.

As at March 31, 2025, the Company has used the proceeds as intended, with approximately $27,432 (C$39,368), of total spent-to-date since the receipt of the proceeds to fund an expanded exploration and infill drilling program at the Warintza Project, regional exploration activities, including fieldwork on ten new exploration concessions for which an option to acquire was awarded to the Company, and for working capital and general corporate purposes.

Commitments and Contingencies

At March 31, 2025, the Company had contractual cash flow commitments as follows:

< 1 Year 1-3 Years 4-5 Years > 5 Years Total
Accounts payable and accrued liabilities $ 8,612 $ $ $ $ 8,612
Lease liabilities 184 329 513
Senior loan principal and interest^1^ 71,350 71,350
Exploration expenses and other 808 1,235 2,043
$ 9,604 $ 72,914 $ $ $ 82,518

^^

^1^ The interest is calculated using interest rate in effect at<br>March 31, 2025.

Share Capital Information

As at May 15, 2025, the Company had the following securities issued and outstanding:

164,595,970<br> Common Shares
12,545,000<br> Common Shares issuable pursuant to exercise of stock options
--- ---
26,085<br> shares issuable pursuant to redemption of restricted share units (“RSUs”)^1^
--- ---
^1^ Issuance of the Common Shares underlying the vested RSUs has been deferred<br>by the holders of the RSUs.
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Page 11 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Off-Balance Sheet Arrangements

The Company does not have any material off-balance sheet arrangements, other than the Company’s obligation for future rental payments described in “Related Party Transactions”.

Related Party Transactions

Compensation of key management personnel

Key management personnel include those persons having authority and responsibility for planning, directing and controlling the activities of the Company, and comprises the Company’s Chairman, President and Chief Executive Officer, Chief Financial Officer, Chief Operating Officer and Directors.

Key management compensation for the three months ended March 31, 2025 and 2024 is comprised of the following:

For the three months ended March 31, 2025 2024
Share-based compensation $ 693 $ 655
Salaries and benefits 313 223
Professional fees 41
$ 1,006 $ 919

During 2021, the Company entered an agreement with Augusta Capital Corporation (“Augusta”) for consulting services. The owner of Augusta Capital Corporation is the Chairman and a major shareholder of the Company. The agreement with Augusta Capital Corporation was terminated on December 31, 2024. No amounts were charged by Augusta for the three months ended March 31, 2025 (three months ended March 31, 2024 – $41).

Related party transactions

On January 2, 2020, the Company entered into an arrangement to share office space, equipment, personnel, consultants and various administrative services with other companies related by virtue of certain directors and management in common. These services have been provided through a management company equally owned by each company party to the arrangement. Costs incurred by the management company are allocated and funded by the shareholders of the management company based on time incurred and use of services. All of the parties have jointly entered into a rental agreement for office space. On January 1, 2025, the Company terminated the arrangement to share office space, equipment, personnel, consultants and various administrative services with other companies related by virtue of certain directors and management in common. The agreed settlement cost associated with the termination of the agreement was $104.

The Company was charged for the following with respect to these arrangements in the three months ended March 31, 2025 and 2024:

For the three months ended March 31, 2025 2024
Salaries and benefits $ $ 367
Office and other 104 116
Filing and regulatory fees
Marketing and travel 5
$ 104 $ 488
Page 12 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

MATERIAL Accounting Policies and Estimates

In preparing the accompanied condensed consolidated interim financial statements in conformity with IFRS, management has made judgements, estimates and assumptions that affect the application of the Company’s accounting policies and the reported amounts of assets, liabilities, income and expense. Actual results may differ. All estimates and underlying assumptions are reviewed on an ongoing basis. Revisions are recognized in the period in which the estimates are revised and in any future periods affected. Information about critical judgements and estimates in applying accounting policies that have the most significant effect on amounts recognized in the condensed consolidated interim financial statements are the same as those described in the consolidated annual financial statements for the year ended December 31, 2024.

Judgements and estimates that have the most significant effect on the amounts recognized in the Company’s condensed consolidated interim financial statements are as follows:

a) Determination of functional currencies

The functional currency for the Company and its subsidiaries is the currency of the primary economic environment in which the entity operates. The Company has determined the functional currency of Solaris is the Canadian dollar, and the functional currency of each subsidiary entity is the US dollar. Assessment of functional currency involves certain judgements to determine the primary economic environment and the Company reconsiders the functional currency of its entities if there is a change in events and conditions which determined the primary economic environment.

b) Reclamation provision

The ultimate costs for reclamation and rehabilitation are uncertain, and cost estimates can vary in response to many factors, including estimates of the nature, extent and timing of rehabilitation activities, technological changes, regulatory changes, changes in inflation rates, the risk-free interest rate used for discounting future cash flows, foreign exchange rates, and estimates of the underlying currencies in which the provisions will ultimately be settled. The Company estimates its costs based on studies using current restoration standards and techniques, and the provision at the reporting date represents management’s best estimate of the present value of the future rehabilitation costs required. Significant assumptions related to the reclamation provision are disclosed in Note 5 of the condensed consolidated interim financial statements .

c) Valuation of exploration and evaluation assets

The application of the Company’s accounting policy for exploration and evaluation assets requires estimates in determining whether it is likely that future economic benefits will flow to the Company, which may be based on assumptions about future events or circumstances. Capitalized acquisition costs are assessed for impairment at least annually or when facts and circumstances suggest that the carrying amount of an exploration and evaluation asset may exceed its recoverable amount. Judgement is required in determining whether indicators of impairment exist, including factors such as the period for which the Company has the right to explore, expected renewals of exploration rights, whether expenditures on further exploration and evaluation of resource properties are planned, results of exploration and evaluation activities on the exploration and evaluation assets and future commodity prices.

d) Share-based compensation

The Company utilizes the Black-Scholes option pricing model to estimate the fair value of stock options granted to directors, officers, employees and consultants of the Company. The use of the Black-Scholes option pricing model requires management to make various estimates and assumptions that impact the value assigned to the stock options including the expected volatility of the stock price, the risk-free interest rate, dividend yield, the expected life of the stock options and the number of options expected to vest. The expected term of the options granted is determined based on historical data of the average hold period before exercise, cancellation or expiry. Expected volatility is estimated with reference to the historical volatility of the share price of a peer group of companies as applicable given the short period for which the Company’s shares have been publicly listed. Any changes in these assumptions could change the amount of share-based compensation recognized. Significant assumptions related to share-based payments are disclosed in Note 7 of the condensed consolidated interim financial statements .

e) Going concern evaluation

As discussed in Note 1 of the condensed consolidated interim financial statements , the condensed consolidated interim financial statements have been prepared under the assumptions applicable to a going concern. If the going concern assumption were not appropriate for the condensed consolidated interim financial statements, then adjustments would be necessary to the carrying value of assets and liabilities, the reported expenses, and the statement of financial position classifications used and such adjustments could be material. The Company reviews the going concern assessment at the end of each reporting period. The Company’s assessment of its ability to continue as a going concern requires significant judgement about whether there are material uncertainties that may cast significant doubt about the Company’s ability to continue as a going concern. The Company must determine whether sufficient financing will be obtained in the near term.

Page 13 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Financial Instrument Risk Exposure and Risk Management

The Company is exposed in varying degrees to a variety of financial instrument related risks. The Board approves and monitors the risk management process.

a) Credit risk

Credit risk is the risk of financial loss to the Company if a counterparty to a financial instrument fails to meet its contractual obligations and arises principally from the Company’s financial assets.

The Company is primarily exposed to credit risk on its cash and cash equivalents and amounts receivable. Credit risk exposure is limited through maintaining its cash with high-credit quality financial institutions. The carrying value of these financial assets of $15,071 represents the maximum exposure to credit risk.

b) Interest rate risk

Interest rate risk is the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market interest rates. The Company’s exposure to the risk of changes in market interest rates relates primarily to the Company’s Senior Loan which has a floating interest rate.

With all other variables held constant, a 1% change in secured overnight financing rate would have changed net loss by approximately $125 for the three months ended March 31, 2025 (three months ended March 31, 2024 – $75).

c) Liquidity risk

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company ensures that there is sufficient capital in order to meet short term business requirements after taking into account the Company’s holdings of cash (discussed in Note 1 of the condensed consolidated interim financial statements ). As at March 31, 2025, the Company had cash and cash equivalents of $14,242.

d) Foreign<br>currency risk

The Company is exposed to currency risk on transactions and balances in currencies other than the functional currency. At March 31, 2025, the Company had not entered into any contracts to manage foreign exchange risk.

The functional currency of the Company is the Canadian dollar, therefore, the Company is exposed to currency risk from the assets and liabilities denominated in the US dollar. As at March 31, 2025, cash of $905 (December 31, 2024 – $15,858), loans and borrowings of $50,746 (December 31, 2024 – $49,206), and accounts payable and accrued liabilities of $403 (December 31, 2024 - $421) are denominated in the US dollar. For the three months ended March 31, 2025, if the US dollar to Canadian dollar currency exchange rate changes by 5% with all other variables held constant, the impact on the Company’s net loss would be $2,516 (March 31, 2024 – $164).

The Company is also exposed to currency risk on financial assets and liabilities denominated in Peruvian soles, Mexican pesos and Guatemalan quetzals. However, the impact on such exposure is not currently material.

Page 14 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Capital management

The Company’s primary objective when managing capital is to ensure that it will be able to continue as a going concern and that it has the ability to satisfy its capital obligations and ongoing operational expenses, as well as having sufficient liquidity to fund suitable business opportunities as they arise.

The capital of the Company includes the components of equity attributable to shareholders of the Company and loans and borrowings, net of cash and cash equivalents. Capital is summarized in the following table:

March 31, 2025 December 31,<br><br> 2024
Equity attributable to shareholders of the Company $ (31,629 ) $ (17,201 )
Loans and borrowings 50,746 49,206
19,117 32,005
Less: Cash and cash equivalents (14,242 ) (31,738 )
$ 4,875 $ 267

The Company manages its capital structure and makes adjustments to it as necessary in light of economic conditions. In order to maintain the capital structure, the Company may, from time to time, issue or buy back equity, repay debt, or sell assets. The Company, upon approval from its Board, intends to balance its overall capital structure through a combination of equity financing, debt and other forms of financing.

The Company did not have any externally imposed restrictions as at March 31, 2025 other than those imposed by the Senior Loan. To effectively manage its capital requirements, the Company has in place a planning and budgeting process to help determine the funds required to ensure the Company has appropriate liquidity to meet its business activities, including planned corporate expenditures, exploration expenses, as well as the development activities for the Warintza Project.

Risks and Uncertainties

The risks related to Solaris’ business and those that are reasonable likely to affect the Company’s financial statements in the future, are described in the Company’s annual MD&A dated March 20, 2025, which is filed on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov.

Page 15 of 16

Solaris Resources Inc.

Management’s Discussion and Analysis

For the three months ended March 31, 2025 and 2024

(Expressed in thousands of United States dollars, unless otherwise noted)

Disclosure Controls and Procedures and Internal Control Over Financial Reporting

The Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”) have designed or caused to be designed under their supervision the Company’s disclosure controls and procedures (“DC&P”) to provide reasonable assurance that material information regarding the Company is accumulated and communicated to the Company’s management, including its CEO and CFO, in a timely manner. In addition, the CEO and CFO have designed or caused to be designed under their supervision internal control over financial reporting (“ICFR”) to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements, as well as an evaluation on whether there were changes to its ICFR during most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company’s ICFR.

The control framework used to design the Company’s ICFR is based on the 2013 control framework developed by the Committee of Sponsoring Organizations of the Treadway Commission.

For the three months ended March 31, 2025, the DC&P have been designed effectively to provide reasonable assurance that material information relating to the Company is made known to the CEO and CFO, particularly during the period in which the relevant annual filings are prepared and the information required to be disclosed by the Company in its filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified. In addition, the ICFR has also been designed effectively to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements.

A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that its objectives are met. Due to inherent limitations in all such systems, no evaluations of controls can provide absolute assurance that all control issues, if any, within a company are detected on a timely basis. Accordingly, our DC&P and ICFR are effective in providing reasonable, not absolute, assurance that the objectives of our control systems have been met.

Changes in Internal Control Over Financial Reporting

National Instrument 52-109 – Certification of Disclosure in Issuers’ Annual and Interim Filings requires Canadian public companies to disclose any changes in ICFR during the most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, ICFR. No material changes were made to internal controls in the three months ended March 31, 2025.

Qualified Person

The technical information contained in this document related to the MRE was based upon the Technical Report entitled “Mineral Resource Estimate Update - NI 43-101 Technical Report, Warintza Project, Ecuador” with an effective date of July 1, 2024, prepared under the supervision of Mario E. Rossi, FAusIMM, RM-SME, Principal Geostatistician of Geosystems International Inc., who is a “Qualified Person” as defined in NI 43-101. The corresponding Technical Report disclosing the MRE in accordance with NI 43-101 is available on the Company’s website and on SEDAR+ under the Company’s profile at www.sedarplus.ca and on EDGAR at www.sec.gov. 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).

Page 16 of 16

Exhibit 99.3

Form 52-109F2

Certification of Interim Filings

Full Certificate


I, Matthew Rowlinson, President and Chief Executive Officer ofSolaris Resources Inc., certify the following:

1. Review: I have reviewed the interim financial<br>report and interim MD&A (together, the “interim filings”) of Solaris Resources Inc. (the “issuer”)<br>for the interim period ended March 31, 2025.
2. No misrepresentations: Based on my knowledge,<br>having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a<br>material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which<br>it was made, with respect to the period covered by the interim filings.
--- ---
3. Fair presentation: Based on my knowledge, having<br>exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings<br>fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of<br>and for the periods presented in the interim filings.
--- ---
4. Responsibility: The issuer’s other certifying<br>officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control<br>over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 Certification of Disclosure in Issuers’Annual and Interim Filings, for the issuer.
--- ---
5. Design: Subject to the limitations, if any,<br>described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer(s) and I have, as at the end of the period covered by<br>the interim filings
--- ---
(a) designed DC&P, or caused it to be designed under our<br>supervision, to provide reasonable assurance that
--- ---
(i) material information relating to the issuer is made known<br>to us by others, particularly during the period in which the interim filings are being prepared; and
--- ---
(ii) information required to be disclosed by the issuer in its<br>annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized<br>and reported within the time periods specified in securities legislation; and
--- ---
(b) designed ICFR, or caused it to be designed under our supervision,<br>to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external<br>purposes in accordance with the issuer’s GAAP.
--- ---
5.1 Control framework: The control framework the<br>issuer’s other certifying officer(s) and I used to design the issuer’s ICFR is Internal Control – Integrated Framework(2013) published by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).
--- ---
5.2 ICFR – material weakness relating to design: N/A
--- ---
5.3 Limitation on scope of design: N/A
--- ---
6. Reporting changes in ICFR: The issuer has disclosed<br>in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on January 1, 2025 and<br>ended on March 31, 2025 that has materially affected, or is reasonably likely to materially affect, the issuer’s<br>ICFR.
--- ---
Date: May 15, 2025
---
/s/ Matthew Rowlinson
Matthew Rowlinson
President and Chief Executive Officer

Exhibit 99.4

Form 52-109F2

Certification of Interim Filings

Full Certificate


I, Richard Hughes, Chief Financial Officer of SolarisResources Inc., certify the following:

1. Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”)<br>of Solaris Resources Inc. (the “issuer”) for<br>the interim period ended March 31, 2025.
2. No misrepresentations: Based on my knowledge, having exercised reasonable diligence, the<br>interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that<br>is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered<br>by the interim filings.
--- ---
3. Fair presentation: Based on my knowledge, having exercised reasonable diligence, the interim<br>financial report together with the other financial information included in the interim filings fairly present in all material respects<br>the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim<br>filings.
--- ---
4. Responsibility: The issuer’s other certifying officer(s) and I are responsible for<br>establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those<br>terms are defined in National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the<br>issuer.
--- ---
5. Design: Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the<br>issuer’s other certifying officer(s) and I have, as at the end of the period covered by the interim filings
--- ---
(a) designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that
--- ---
(i) material information relating to the issuer is made known<br>to us by others, particularly during the period in which the interim filings are being prepared; and
--- ---
(ii) information required to be disclosed by the issuer in its annual filings, interim filings or other<br>reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods<br>specified in securities legislation; and
--- ---
(b) designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding<br>the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s<br>GAAP.
--- ---
5.1 Control framework: The control framework the issuer’s other certifying officer(s)<br>and I used to design the issuer’s ICFR is Internal Control – Integrated Framework (2013) published by the Committee ofSponsoring Organizations of the Treadway Commission (COSO).
--- ---
5.2 ICFR – material weakness relating to design: N/A
--- ---

5.3 Limitation on scope of design: N/A

6. Reporting changes in ICFR: The issuer has disclosed in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on January 1, 2025 and ended on March 31, 2025 that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.
Date: May 15, 2025
---
/s/ Richard Hughes
Richard Hughes
Chief Financial Officer