This Amendment No. 1 (this "Amendment") amends the Annual Report on Form 40-F of Solaris Resources Inc. (the "Company") originally filed with the Securities and Exchange Commission ("SEC") on March 26, 2026 (the "Original Annual Report"), solely to add in the incorporation by reference and missing hyperlink of the Company's previously filed Incentive Compensation Clawback Policy which was inadvertently omitted from the Original Annual Report. This Amendment consists solely of (i) a Cover Page, (ii) this Explanatory Note, (iii) an updated Exhibit Index, and (iv) new certifications required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), filed as Exhibits 99.4 and 99.5 hereto, and (vi) a signature page. Because no financial statements have been included in this Amendment, paragraphs 3, 4 and 5 of the certifications required by Rule 13a-14(a) or Rule 15d-14(a) under the Exchange Act have been omitted. The Company is also not including new certifications under Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of 2002), as no financial statements are filed with this Amendment.
Other than as expressly set forth herein, this Amendment does not, and does not purport to, amend, update, or restate the information in any item of the Original Annual Report or reflect any events that have occurred after the Original Annual Report was filed. Accordingly, this Amendment should be read in conjunction with the Original Annual Report.