HIGHLIGHTS OF THE PRESS RELEASE:

• All matters presented for approval at Solaris’ annual meeting of shareholders held today, as more particularly set out in the Company’s Management Information Circular dated May 11, 2026, have been approved.

Quito, Ecuador –– June 30, 2026 –– Solaris Resources Inc. (“Solaris” or the “Company”) (TSX: SLS; NYSE: SLSR) is pleased to announce that all matters presented for approval at Solaris’ annual meeting of shareholders held today, as more particularly set out in the Company’s Management Information Circular dated May 11, 2026, have been approved.

These matters included:

• Electing each of the Company’s five nominees as directors of the Company;

• Appointing BDO Canada LLP, as auditors of the Company for the ensuing year and authorizing the board of directors to set their remuneration; and

• Ratifying and approving all unallocated entitlements under the Company’s stock option plan.

A summary of the results is provided below:

On behalf of the Board of Solaris Resources Inc.

“Matthew Rowlinson”
President & CEO, Director

For Further Information

Patrick Chambers, VP Business Development & Investor Relations
Email: pchambers@solarisresources.com

Official PDF Download

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About Solaris Resources Inc.

Solaris Resources is a copper-gold exploration and development company advancing a portfolio of high-quality assets across the Americas. Its flagship asset is the 100%-owned Warintza copper porphyry Project in southeast Ecuador. Solaris is committed to responsible mining practices that prioritize environmental stewardship, shared value creation, and long- term benefits for local communities and stakeholders.

Cautionary Notes and Forward-looking Statements

This document contains certain forward-looking information and forward-looking statements within the meaning of applicable securities legislation (collectively “forward-looking statements”). The use of the words “will” and “expected” and similar expressions are intended to identify forward-looking statements. These statements include statements regarding the Company’s future exploration plans, growth and value; planned activities and potential future opportunities at Warintza; the timing and ability to obtain the requisite permits, if at all, including, but not limited to, the granting of Warintza’s Exploitation Agreements; the expected benefits of the EIA technical approval; the timing and outcome of the FPIC and other permitting processes; the ongoing ability to work cooperatively with stakeholders; the ability of the Company to satisfy the conditions precedent to the advancement of the remaining amount under the Funding Package; and the timing, benefits, impact, structure and completion of the transactions contemplated under or in connection with the Funding Package, including whether each tranche will be advanced. Although Solaris believes that the expectations reflected in such forward-looking statements and/or information are reasonable, readers are cautioned that actual results may vary from the forward-looking statements. The Company has based these forward-looking statements and information on the Company’s current expectations and assumptions about future events including assumptions regarding the exploration and regional programmes. These statements also involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements, including the risks, uncertainties and other factors identified in the Solaris Management’s Discussion and Analysis, for the year ended December 31, 2025 available at www.sedarplus.ca. Furthermore, the forward-looking statements contained in this news release are made as at the date of this news release and Solaris does not undertake any obligation to publicly update or revise any of these forward-looking statements except as may be required by applicable securities laws.