Mr. Daniel Earle reports

SOLARIS SIGNIFICANTLY EXPANDS WARINTZA EAST DISCOVERY

Solaris Resources Inc. has released assay results from a series of holes aimed at delineating resources at the Warintza East discovery within its Warintza project in southeastern Ecuador.

Highlights

Warintza East was discovered in July, 2021, with eight holes covering the overlapping periphery included in the Warintza Central mineral resource estimate (MRE) in April, 2022. These follow-up drilling results significantly expand the drilled dimensions of the Warintza East footprint to the east and southwest, with the deposit remaining entirely open toward strong soil anomalism to the northeast and southeast:

• SLSE-15 was collared in the middle of the Warintza East grid and drilled east into a partially open volume, returning 204 metres of 0.6 per cent copper equivalent within a broader interval of 910 m of 0.4 per cent CuEq from near surface, extending mineralization to the east, where it remains open.
• SLSE-14, stepped out approximately 250 m from the eastern limit of the grid and drilled northwest into an open volume, returning 292 m of 0.5 per cent CuEq within a broader interval of 694 m of 0.4 per cent CuEq from near surface, extending mineralization in this direction, where it remains open.
• SLSE-12 was collared at the eastern limit of the grid and drilled southwest into an open volume, returning 48 m of 0.53 per cent CuEq within a broader interval of 508 m of 0.4 per cent CuEq from surface, extending mineralization in this direction.
• SLSE-13 was collared from the same platform and drilled southwest into an open volume, returning 104 m of 0.45 per cent CuEq within a broader interval of 618 m of 0.29 per cent CuEq from surface, expanding the footprint to the south, where it remains open.
• SLSE-10 and SLSE-11 were collared in the overlapping portion with Warintza Central and drilled northwest into partially open volumes, returning 282 m of 0.53 per cent CuEq and 270 m of 0.55 per cent CuEq, respectively, within broader intervals from near surface.
• Drilling to date confirms Warintza East as a significant porphyry deposit that remains open for expansion in multiple areas, with assays pending from a series of extensional holes to the northeast, east and south.

Jorge Fierro, vice-president, exploration, commented: "Drilling to date covers only a small portion of the Warintza East discovery, which represents a target for major resource growth. Further extensional and stepout drilling is planned to the east and southeast with a 400 m stepout platform located on the southern margin of the drill grid targeting strong soil anomalism in this area."

Technical information and quality assurance/quality control

Sample assay results have been independently monitored through a quality assurance/quality control program that includes the insertion of blind certified reference materials (standards), blanks and field duplicate samples. Logging and sampling are completed at a secured company facility located in Quito, Ecuador. Drill core is cut in half on site, and samples are securely transported to ALS in Quito. Sample pulps are sent to ALS in Lima, Peru, and Vancouver, Canada, for analysis. Total copper and molybdenum contents are determined by four-acid digestion with AAS finish. Gold is determined by fire assay of a 30-gram charge. In addition, selected pulp check samples are sent to Bureau Veritas in Lima, Peru. Both ALS and Bureau Veritas are independent of Solaris. Solaris is not aware of any drilling, sampling, recovery or other factors that could materially affect the accuracy or reliability of the data referred to herein. ZTEM (Z-axis tipper electromagnetic) data quality was validated by a qualified external professional using data validation procedures under high industry standards, and the company therefore did not deem it necessary to have such ZTEM data verified by a qualified person. Details on the surface sampling conducted at the project are set out in the technical report titled "NI 43-101 Technical Report for the Warintza Project, Ecuador," with an effective date of April 1, 2022, prepared by Mario E. Rossi and available on the company's SEDAR profile and website. The drill hole data have been verified by Jorge Fierro, MSc, DIC, PG, using data validation and quality assurance/quality control procedures under high industry standards.

Qualified person

The scientific and technical content of this press release has been reviewed and approved by Jorge Fierro, MSc, DIC, PG, vice-president of exploration at Solaris, a qualified person as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. Mr. Fierro is a registered professional geologist through SME (registered member No. 4279075).

About Solaris Resources Inc.

Solaris is a multiasset exploration company, advancing a portfolio of copper and gold assets in the Americas, including: its primary focus, a world-class, large-scale resource with expansion and discovery potential at the Warintza project in Ecuador; discovery potential at its Ricardo project and optioned/owned grassroots Tamarugo project in Chile; discovery potential at its Capricho and Paco Orco projects in Peru; and significant leverage to increasing copper prices through its 60-per-cent interest in the La Verde joint venture project with a subsidiary of Teck Resources in Mexico.

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