Mr. Daniel Earle reports

SOLARIS REPORTS 108M OF 1.20% CUEQ FROM NEAR SURFACE, CONTINUES TO EXPAND 'INDICATIVE STARTER PIT' AT WARINTZA CENTRAL

Solaris Resources Inc. has released assay results from a series of holes aimed at growing the northeast extension of the indicative starter pit at its Warintza project in southeastern Ecuador.

Highlights

Resource expansion drilling continues to build on the northeast extension of the indicative starter pit which was estimated at 180 million tonnes at 0.82 per cent copper equivalent (indicated) and 107 Mt at 0.73 per cent CuEq (inferred) within the Warintza mineral resource estimate (MRE) based on drilling to the end of 2021. Follow-up drilling this year has significantly expanded the dimensions of the zone as a priority for high-impact growth with further drilling continuing.

• SLS-67 was collared at the north-central limit of Warintza Central and drilled southwest into a partially open volume, returning 108 metres of 1.20 per cent CuEq within a broader interval of 604 m of 0.51 per cent CuEq from near surface.
• This hole expands on the area of high-grade near-surface mineralization in combination with SLS-48, which was collared from the same platform but drilled south, returning 100 m of 1.64 per cent CuEq within a broader interval of 852 m of 0.56 per cent CuEq from near surface (refer to press release dated Feb. 28, 2022).
• SLS-68 was collared from the same platform as SLS-67 and drilled steeply to the northwest into an open volume, returning 72 m of 1 per cent CuEq within a broader interval of 616 m of 0.44 per cent CuEq from near surface, expanding this area of higher-grade mineralization from near surface.
• SLS-65 was collared from a recently constructed 250 m stepout platform at the northeast limit of the Warintza Central grid and drilled northwest into a partially open volume, returning 286 m of 0.55 per cent CuEq from near surface.
• Assays are pending from a series of holes from this new drill platform aimed at further expanding resource growth in the northeast extension zone, with additional extension and stepout drilling under way.

Jorge Fierro, vice-president, exploration, commented: "The northeast extension remains open to the north with assays pending from recently completed holes. Further extensional drilling is planned with a 200 m stepout platform on the northeastern margin of the drill grid aimed at expanding the zone in this direction. We're also expecting assays from the remaining holes drilled from the discovery platform at Warintza West outlining a mineralized porphyry with minimum dimensions of 900 m by 600 m and open outside the MRE for future resource drilling, and the next series of holes targeting the expansion of Warintza East."

Technical information and quality assurance and 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 Labs in Quito. Sample pulps are sent to ALS Labs in Lima, Peru, and Vancouver, Canada, for analysis. Total copper and molybdenum contents are determined by four-acid digestion with atomic absorption spectroscopy finish. Gold is determined by fire assay of a 30-gram charge. In addition, selected pulp check samples are sent to Bureau Veritas lab in Lima, Peru. Both ALS Labs and Bureau Veritas lab 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. The drill hole data have been verified by Mr. Fierro, MSc, DIC, PG, using data validation and quality assurance procedures under high industry standards.

Qualified person

The scientific and technical content of this press release has been reviewed and approved by Mr. Fierro, MSc, DIC, PG, vice-president, exploration, of Solaris, who is a qualified person as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. Mr. Fierro is a registered professional geologist through the 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, which includes: 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 and 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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