HIGHLIGHTS: Non-dilutive US$200 million funding package from Royal Gold, comprising a gold stream and NSR royalty, US$100 million of which is available immediately The package provides the funding required to repay the Senior Debt facility and is expected to provide the necessary liquidity to fund all value accretive derisking activities through to a final investment decision Stream expected to represent a small percentage of the gold over the life of mine which, together with the modest NSR royalty, reinforces Warintza's position as a multi-generational tier 1 copper project following significant due diligence and financial commitment on accretive terms providing a robust reflection of the potential scale, economics and stage of development Stream termination provision contains no penalties under a change-of-control scenario, providing the Company flexibility to enhance shareholder value going forward Maintained strategic optionality around future project financing Funding package restricted to Warintza cluster thus retaining exposure to significant exploration upside potential with commercial optionality around high-priority targets within the Warintza district QUITO, Ecuador, May 21, 2025 (GLOBE NEWSWIRE) -- Solaris Resources Inc. (“Solaris” or the “Company”) (TSX: SLS; NYSE: SLSR) is pleased to announce that it has entered into a US$200 million financing arrangement comprising a gold stream (“Stream”) and net smelter return royalty (“Royalty”) (collectively the “Financing Agreements”) with RGLD Gold AG ("Royal Gold"), a subsidiary of Royal Gold, Inc. following a competitive and comprehensive process during which the Company received numerous compelling and credible financing proposals from third parties. The Financing Agreements provide the Company with long-term liquidity required to fund all value accretive, derisking activities through to a final investment decision (“FID”), in addition to paying off the senior secured debt facility with Orion Mine Finance Management LP (the “Senior Debt facility”).

05/21/2025

HIGHLIGHTS: Solaris completes significant drilling campaign at its flagship Warintza project 82,000 metres of infill drilling Updated Mineral Resource Estimate targeted for Q3 2025 Step-out field exploration activities are ongoing Technical approval of the Environmental Impact Assessment on target for mid-2025 Pre-Feasibility Study on target for publication in Q3 2025 Re-election of President Daniel Noboa provides political stability, reinforcing the supportive policy environment QUITO, Ecuador, April 22, 2025 (GLOBE NEWSWIRE) -- Solaris Resources Inc. (“Solaris” or the “Company”) (TSX: SLS; NYSE: SLSR) is pleased to announce the completion of a significant drilling campaign at its flagship Warintza Project in southeastern Ecuador, alongside key developments that continue to strategically de-risk and enhance the value of this globally significant copper asset. 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.

04/22/2025