March 22, 2021 – Vancouver, B.C. – Solaris Resources Inc. (TSX: SLS; OTCQB: SLSSF) ("Solaris" or the "Company") is pleased to report assay results from a series of additional holes from the ongoing resource growth and discovery diamond drilling program at its Warintza Project (“Warintza” or “the Project”) in south-eastern Ecuador.

Highlights are listed below, with corresponding images in Figures 1-2 and detailed results in Tables 1-2. An updated dynamic 3D model is available on the Company’s website.

Highlights

Three additional holes at Warintza Central, as detailed below, have returned long intervals of high-grade mineralization, with the highest grades starting from surface, and extending mineralization between the eastern and western drilling and stepping out to the southwest.
SLS-14 was collared on the western side of Warintza Central and drilled into an open volume to the east, returning 922m of 0.94% CuEq¹ (0.79% Cu, 0.03% Mo, and 0.08 g/t Au) from surface, including 850m of 0.98% CuEq¹ (0.82% Cu, 0.03% Mo, and 0.08 g/t Au), significantly extending the limits of mineralization
SLS-15 returned 1,002m of 0.60% CuEq¹ (0.52% Cu, 0.01% Mo, and 0.04 g/t Au) from surface, including 694m of 0.67% CuEq¹ (0.57% Cu, 0.02% Mo, and 0.05 g/t Au) within a broader interval of 1,229m of 0.56% CuEq¹ (0.48% Cu, 0.01% Mo, and 0.04 g/t Au), stepping out to the southeast and extending mineralization to depth
SLS-16 returned 958m of 0.77% CuEq¹ (0.63% Cu, 0.03% Mo, and 0.06 g/t Au) from near surface, including 486m of 0.84% CuEq¹ (0.70% Cu, 0.03% Mo, and 0.07 g/t Au), extending mineralization between the eastern and western drilling at Warintza Central
To date, 20,200 metres have been drilled at Warintza Central in 25 holes of which results have been reported for 16; drilling is ongoing with six rigs currently operating and increasing to 12 by mid-year
Mr. Jorge Fierro, Vice President, Exploration, commented: “Our drilling continues to demonstrate significant extensions of mineralization at Warintza Central with the latest results suggesting the continuity of high-grade mineralization between the eastern and western areas and extending the mineralized envelope to the southeast. Our exploration drilling recently resulted in a new discovery at Warintza West, with maiden drilling targeting new discoveries at Warintza East and South commencing in the second quarter.”

Table 1 – Warintza Central Assay Results

Hole ID Date Reported From (m) To (m) Interval (m) Cu (%) Mo (%) Au (g/t) CuEq¹ (%)
SLS-16 Mar 22, 2021 20 978 958 0.63 0.03 0.06 0.77
Including 358 844 486 0.70 0.03 0.07 0.84
SLS-15 2 1231 1229 0.48 0.01 0.04 0.56
Including 2 1004 1002 0.52 0.01 0.04 0.60
Including 2 696 694 0.57 0.02 0.05 0.67
SLS-14 0 922 922 0.79 0.03 0.08 0.94
Including 34 884 850 0.82 0.03 0.08 0.98
Including 52 836 784 0.84 0.03 0.09 1.00
SLS-13 Feb 22, 2021 6 468 462 0.80 0.04 0.09 1.00
SLS-12 22 758 736 0.59 0.03 0.07 0.74
SLS-11 6 694 688 0.39 0.04 0.05 0.57
SLS-10 2 602 600 0.83 0.02 0.12 1.00
SLS-09 122 220 98 0.60 0.02 0.04 0.71
SLS-08 Jan 14, 2021 134 588 454 0.51 0.03 0.03 0.62
SLS-07 0 1067 1067 0.49 0.02 0.04 0.60
SLS-06 Nov 23, 2020 8 892 884 0.50 0.03 0.04 0.62
SLS-05 18 936 918 0.43 0.01 0.04 0.50
SLS-04 0 1004 1004 0.59 0.03 0.05 0.71
SLS-03 Sep 28, 2020 4 1014 1010 0.59 0.02 0.10 0.71
SLS-02 0 660 660 0.79 0.03 0.10 0.97
SLS-01 Aug 10, 2020 1 568 567 0.80 0.04 0.10 1.00
Notes to table: Grades are uncut and true widths have not been determined.

Table 2 – Collar Locations for New Drill Holes

Hole ID Easting Northing Elevation (m) Depth (m) Azimuth (degrees) Dip (degrees)
SLS-16 800124 9648035 1580 1033 272 -77
SLS-15 800191 9648059 1580 1231 222 -80
SLS-14 799765 9648033 1571 1020 85 -80
Notes to table: The coordinates are in WGS84 17S Datum.

Figure 1 – Long Section of 3D Geophysics Looking Northeast

Figure 1 - Long Section of 3D Geophysics Looking Northeast
Note to Figure 1: Figure looks northeast and depicts high-conductivity geophysical anomaly (defined at 100 ohm-m) generated from 3D inversion of electromagnetic data, encompassing from left to right Warintza West, Central, East and newly-discovered Yawi target (Warintza South lies off image to south).

Figure 2 - Long Section of 3D Geophysics Looking Northeast at Warintza South

Figure 2 - Long Section of 3D Geophysics Looking Northeast at Warintza South

Technical Information and Quality Control & Quality Assurance

Sample assay results have been independently monitored through a quality control/quality assurance (“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 finish. Gold is determined by fire assay of a 30-gram charge. ALS Labs is independent from Solaris. In addition, selected pulp check samples are sent to Bureau Veritas lab in Lima, Peru. 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.

Qualified Person

The scientific and technical content of this press release and the sampling, analytical and test data underlying the scientific and technical content has been compiled, reviewed, approved, and verified by Jorge Fierro, M.Sc., 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. The data was verified using data validation and quality assurance procedures under high industry standards. ZTEM data quality was validated by a qualified external professional.

On behalf of the Board of Solaris Resources Inc.

“Daniel Earle”
President & CEO, Director

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