SCHEDULE 13D/A 0000912282-24-000802 0001829974 XXXXXXXX LIVE 1 Common Shares, no par value 10/03/2025 false 0002019103 83419D201 Solaris Resources Inc.

NEUHOFSTRASSE 5A Baar V8 6340

Daniel Earle (604-687-1717 Suite 555, 999 Canada Place Vancouver A1 V6C 3E1 copy to: Jason K. Brenkert (303) 629-3445 Dorsey & Whitney LLP 1400 Wewatta Street, Suite 400 Denver CO 80202-5549 0001829974 EARLE DANIEL PF OO Z4 8014375 8014375 8014375 N 4.8 IN Amounts reported in Items 7, 9, and 11 represent 6,141,875 common shares held directly; 972,500 common shares held indirectly through 2210637 Ontario Ltd., of which the Reporting Person is sole beneficial owner and officer; and 900,000 options. The percentages used herein are calculated on a partially diluted basis based upon 166,202,804 outstanding shares of Solaris Resources Inc., as of October 3, 2025, plus 900,000 options to purchase common shares held by Daniel Earle, and included pursuant to Rule 13d-3(d)(1)(i) of the Act. Common Shares, no par value Solaris Resources Inc. NEUHOFSTRASSE 5A Baar V8 6340 This Amendment No. 1 to Schedule 13D ("Amendment No. 1") relates to the Common Shares, no par value ("Common Shares"), of Solaris Resources Inc. (the "Issuer" or the "Company"). This Amendment No. 1 amends and supplements, as set forth below, the Schedule 13D filed by Mr. Earle on November 14, 2024 (the "Original Schedule 13D"). All capitalized terms not otherwise defined herein have the meanings ascribed to such terms in the Schedule 13D. The Original Schedule 13D is amended and supplemented by adding the information contained herein, and only those items amended are reported herein. Daniel Earle acquired 417,441 Common Shares pursuant to the cashless exercise of Options (defined below). He was granted the Options under the Issuer's Stock Option Plan in consideration of his services as President and Chief Executive Officer of Issuer. Mr. Earle exercised Options on October 2, 2025, as discussed in Item 5c below, on a cashless basis pursuant to the terms of the Options to acquire 417,441 Common Shares. As of the date hereof Mr. Earle may be deemed to beneficially own 8,014,375 Common Shares of the Issuer, representing approximately 4.8% of the Common Shares outstanding. Number of Common Shares reported herein includes (i) 6,141,875 common shares held directly; (ii) 972,500 common shares held indirectly through 2210637 Ontario Ltd., of which the Reporting Person is sole beneficial owner and officer; and (iii) 900,000 options, 350,000 of which are exercisable within the next 60 days. Mr. Earle acquired 417,441 Common Shares on October 2, 2025 through a cashless exercise of options, at a deemed purchase price of C$4.90 (US$3.51 using an exchange rate of US$1.00:C$1.3963). Mr. Earle sold 417,441 Common Shares on October 3, 2025 at C$8.90 (US$6.38 using an exchange rate of US$1.00:C$1.3953). Mr. Earle ceased to hold more than five percent of the Issuer's Common Shares on October 3, 2025. EARLE DANIEL /s/ Daniel Earle 10/06/2025