Mr. Daniel Earle reports

SOLARIS REPORTS HIGHEST GRADES TO DATE IN SECOND PORPHYRY CENTRE OUTSIDE RESOURCE AT WARINTZA EAST, WITH 301M OF 0.65% CUEQ FROM SURFACE ENDING IN 31M OF 0.76% CUEQ

Solaris Resources Inc. has released assay results confirming the discovery of a second porphyry centre featuring the highest grades to date at Warintza East, with strong mineralization starting from bedrock surface extending to the end of the hole. The new zone is open to the east, west, south and at depth, with follow-up drilling already under way at this important new discovery at the Warintza project in southeastern Ecuador. Highlights are listed below, with results in the table entitled "Assay results."

Highlights:

• Warintza East was discovered in July, 2021, with eight drill holes included in the Warintza Central mineral resource estimate (MRE) in April, 2022. Subsequent drilling has significantly expanded the dimensions of the deposit, with continuing drilling targeting further mineral resource growth.
• The latest drilling made an important discovery of a second, more intensely mineralized porphyry centre located outside the MRE, approximately 350 metres south of the original discovery, with assays now confirming the highest grades encountered at Warintza East to date.
• SLSE-28 was collared to the south of the Warintza East drill grid and drilled vertically to the limit of the KD-200 rig, returning 301 m of 0.65 per cent CuEq (copper equivalent) from bedrock surface at eight m depth to the end of the hole, with the final 31 m averaging 0.76 per cent CuEq
• Two new platforms were constructed to the east and west, also outside the MRE, with follow-up drill hole SLSE-29, testing the southeast extension up to 200 m to the east, now completed and SLSE-30 in progress, testing the potential to the west.
• SLSE-29 and SLSE-30 were both drilled with KD-200 rigs to allow for the rapid expansion of this emerging zone of near-surface, high-grade mineralization, with follow-up deeper drilling planned with larger capacity KD-1400 rigs.
• The new zone is wide open and additional follow-up drilling is planned to test the potential for lateral expansion, focusing on vectors to the south and southeast where new stepout platforms are under construction.

Jorge Fierro, vice-president of exploration, commented: "The discovery of a second, significantly higher grade porphyry centre at Warintza East is a welcome surprise in our ongoing mineral resource growth drilling program. This new zone offers the potential to rapidly add near-surface, high-grade mineralization to the deposit that could contribute to future starter pit growth. Moreover, the zone is wide open with stepout and extension drilling coming soon."

Note:

1. Refer to Solaris's technical report titled, "NI [National Instrument] 43-101 Technical Report for the Warintza Project, Ecuador," with an effective date of April 1, 2022, prepared by Mario E. Rossi and filed on the company's SEDAR profile.
2. Copper-equivalence calculated as: CuEq (per cent) equals Cu (copper) (per cent) plus (4.0476 times Mo (molybdenum) (per cent)) plus (0.487 times Au (gold) (grams per tonne)), utilizing metal prices of $3.50 (U.S.)/lb (pound) Cu, $15 (U.S.)/lb Mo, and $1,500 (U.S.)/oz (ounce) Au, and assumes recoveries of 90 per cent Cu, 85 per cent Mo and 70 per cent Au, based on preliminary metallurgical testwork.

Technical information and quality assurance/quality control

Sample assay results have been independently monitored through a QA/QC 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 AAS (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 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. 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 Mr. Rossi, and available on the company's SEDAR profile and website. 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 of exploration for 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 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, 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 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.

We seek Safe Harbor.