Solaris Provides Update on Warintza Operations, Optimization Progress, and Appointment of Leading Consultants for the EIA and PFS
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Solaris Provides Update on Warintza Operations, Optimization Progress,
and Appointment of Leading Consultants for the EIA and PFS
May 07, 2024 – Vancouver, B.C. – Solaris Resources Inc . (TSX: SLS; NYSE: SLSR) (“Solaris” or the
“Company”) is pleased to provide an operations update, including site optimization efforts that have
resulted in significantly improved productivity and cost savings under new Chief Operating Officer
(“COO”), Mr. Javier Toro, as well as the appointment of leading independent consultants in support of the
Environmental Impact Assessment (“EIA”) in H2/24 and Pre-Feasibility Study (“PFS”) in H2/25 for the
Warintza Project (“Warintza” or “the Project”) in southeastern Ecuador.
Project Update and Milestones
● Drilling continues to ramp up with six rigs having completed over 5,400m in April, nearly a new
monthly record for the Project, toward a minimum program of 30km of resource growth and infill
drilling budgeted for 2024
● EIA on track for completion in H2/24, with studies and work programs ongoing under the direction
of a proven Ecuadorian environmental consulting firm who has supported Ecuador’s largest
copper and gold mines, ESSAM Cía. Ltda. (“ESSAM”)
● PFS on track for completion in H2/25, with support of leading international consulting firms,
including: Ausenco Engineering (“Ausenco”) for infrastructure and processing; Knight Piésold
Consulting (“Knight Piésold”) for technical studies and engineering designs; and AMC Consultants
(“AMC”) and Minsys Mining Systems (“Minsys”) for mining
● Significantly increased site productivity and efficiency of operations from infrastructure
development and optimization, logistics and practices, generating a 26% reduction in drilling costs
to US$229/m and contributing to significant savings against the Q1/24 budget
● Funding in place for planned 2024 and 2025 programs through the offtake financing package
announced in December, with the strategic investment announced in January intended to support
an expansion of activities and continued consolidation of the surrounding district
Mr. Javier Toro, COO, commented: “We are excited with the improvements we have made at site where
our team is approaching record monthly drilling rates with significantly fewer rigs than at prior peaks. We
are also pleased to be making progress in advancing studies and work programs to support the completion
of the EIA in H2/24 and PFS in 2025. Warintza is a very unique project given its global scale and location
in a mining district adjacent to infrastructure at low elevation.”
Project Update
Drilling – Drilling continues to ramp up, with six rigs having completed over 5,400m in April, nearly a new
record monthly meterage for the Project. A minimum of 30km is budgeted in 2024 for resource growth
and infill drilling, with some of these holes doubling to provide technical data for mine design and mine
planning purposes to support technical studies. In addition, the updated mineral resource is on track for
completion at the end of June for release in early July by Mr. Mario E. Rossi, FAusIMM, SME, IAMG, of
Geosystems International Inc. who is a leading porphyry specialist and completed the prior estimate.
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EIA – Solaris has engaged ESSAM, an Ecuadorian environmental consultant accredited by the Ministry of
Environment of Ecuador, to assist in finalizing and submitting the EIA for the exploitation phase of the
Warintza Project for regulatory review and approval in H2/24, after more than three years of baseline
environmental monitoring, data collection and studies from prior permitting efforts. ESSAM has been
involved with Ecuador’s largest copper and gold mines supporting in environmental audits, monitoring
and studies.
Metallurgy & Processing – Ausenco has been appointed to conduct metallurgical studies and process
plant design for the Project. Activities are focused on throughput definition, metallurgical recovery for
copper, molybdenum and gold to supplement the test work completed in 2023 (refer to press release
dated January 23, 2023), in addition to tailings testing and process plant design. Metallurgical drilling holes
are already underway and laboratory testing is planned during May.
Technical & Engineering – Knight Piésold has been appointed to carry out detailed geotechnical,
hydrogeological, geochemistry, and design studies for the pit, Waste Rock Facility (“WRF”) and Tailings
Management Facility (“TMF”). Knight Piésold has reviewed the drilling plan for the geotechnical and
hydrogeological pit design and dewatering with this drilling already underway. Drilling plans have been
reviewed for the TMF and WRF with this drilling program expected to start at the end of May. A site-wide
water balance and water management plan study is currently underway. In addition, Knight Piesold has
carried out the preliminary Project description report that will provide the baseline for the EIA.
Mine Planning – AMC and Minsys have been appointed to undertake mine scheduling and related trade-
off studies. This work will develop mine plans and assess the impact of different mining rates, mill
throughput rates, cut-off grades and stockpiling strategies in order to optimize the capital efficiency and
IRR and NPV of the Project.
Infrastructure – In addition, Ausenco has been appointed to oversee the initial internal and external
infrastructure assessments including mine infrastructure, offices, logistics, power, roads and port
facilities. The Company is continuing to coordinate with Electric Corporation of Ecuador to provide
renewable hydroelectric-power as the primary power source for the Project, with the first phase of the
adjacent Santiago G8 project (1,200MW) projected to be in operation late this decade.
Funding
As at March 31, the Company had an unaudited cash balance of approximately US$29 million, with an
additional US$40 million expected from the offtake financing package (refer to press release dated
December 11, 2023) to fund the planned 2024 and 2025 programs. Upon closing the strategic investment
announced in January, the Company plans to expand activities and continue consolidation of the
surrounding district.
PFS Project Team
To support the PFS expected in H2/25, the Company has appointed leading international consulting firms,
with relevant expertise applicable to the development and optimization of large-scale copper mining
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operations in the Americas. These independent consultants will supplement an in-house team led by Mr.
Javier Toro, which already includes key technical staff recruited from senior copper mining companies.
Area of Responsibility Qualified Person Consultant Scope
Resource Estimate Geosystems International Inc. Update mineral resource
estimation
Metallurgy and Processing Ausenco Engineering Metallurgical studies and process
plant design
Mine Planning AMC Consultants and
Minsys Mining Systems
Strategic and Life of Mine planning
Internal and External
Infrastructure
Ausenco Engineering Internal: Mine infrastructure,
offices, logistics
External: Power, roads, ports
Technical studies (Geotech,
Hydrogeologic, Chemical)
Knight Piésold Consulting Drilling, sampling, testing; water
balance, water management
Engineering studies
(Pit, WRF, TMF)
Knight Piésold Consulting Civil and geotechnical design
Environment ESSAM Cía. Ltda. Environmental impact studies in
support of the EIA
Social ESSAM Cía. Ltda. Social impact studies in support of
the EIA
Qualified Person
The scientific and technical content of this press release has been reviewed and approved 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. Jorge Fierro is a Registered Professional
Geologist through the SME (registered member #4279075).
On behalf of the Board of Solaris Resources Inc.
“Daniel Earle”
President & CEO, Director
For Further Information
Jacqueline Wagenaar, VP Investor Relations
Direct: 416-366-5678 Ext. 203
Email: [email protected]
About Solaris Resources Inc.
Solaris is advancing a portfolio of copper and gold assets in the Americas, which includes a world class
copper resource with expansion and discovery potential at its Warintza Project in Ecuador; a series of
grass roots exploration projects with discovery potential in Peru and Chile; and significant leverage to
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increasing copper prices through its 60% interest in the La Verde joint-venture project with a subsidiary
of Teck Resources in Mexico.
Cautionary Notes and Forward-looking Statements
This document contains certain forward-looking information and forward-looking statements within the meaning of
applicable securities legislation (collectively “forward-looking statements”). The use of the words “will” and
“expected” and similar expressions are intended to identify forward-looking statements. These statements include
statements that the Environmental Impact Assessment is due in H2/24 and Pre-Feasibility Study in H2/25, site
optimization efforts have resulted in significantly improved productivity and cost savings under new Chief Operating
Officer, a minimum program of 30km of resource growth and infill drilling budgeted for 2024, EIA on track for
completion in H2/24, with studies and work programs ongoing under the direction of ESSAM Cía. Ltda., PFS is on
track for completion in H2/25, with support of leading international consulting firms, including: Ausenco Engineering
for infrastructure and processing; Knight Piésold Consulting for technical studies and engineering design; and AMC
Consultants and Minsys Mining Systems for mining, significantly increased site productivity and efficiency of
operations from infrastructure development and optimization, logistics and practices, generating a 26% reduction in
drilling costs to US$229/m and contributing to significant savings against the Q1/24 budget, funding in place for
planned 2024 and 2025 programs through the offtake financing package announced in December, with the strategic
investment announced in January intended to support an expansion of activities and continued consolidation of the
surrounding district, a minimum of 30km is budgeted in 2024 for resource growth and infill drilling, with some of
these holes doubling to provide technical data for mine design and mine planning purposes to support technical
studies, the updated mineral resource is on track for completion at the end of June for release in early July, Ausenco
has been appointed to conduct metallurgical studies and process plant design for the Project with activities focused
on throughput definition, metallurgical recovery for copper, molybdenum and gold in addition to tailings testing and
process plant design, metallurgical drilling holes are already underway and laboratory testing is planned during May,
Knight Piésold has been appointed to carry out detailed geotechnical, hydrogeological, geochemistry and design
studies for the pit, Waste Rock Facility and Tailings Management Facility, AMC and Minsys have been appointed to
undertake mine scheduling and related trade-off studies and will develop mine plans and assess the impact of
different mining rates, mill throughput rates, cut-off grades and stockpiling strategies in order to optimize the capital
efficiency and IRR and NPV of the Project, Ausenco has been appointed to oversee the initial internal and external
infrastructure assessments including mine infrastructure, offices, logistics, power, roads and port facilities and the
Company is continuing to coordinate with Electric Corporation of Ecuador to provide renewable hydroelectric-power
as the primary power source for the Project, As at March 31, the Company had an unaudited cash balance of
approximately US$29 million, with an additional US$40 million expected from the offtake financing package to fund
the planned 2024 and 2025 programs, and upon closing the strategic investment announced in January, the Company
plans to expand activities and continue consolidation of the surrounding district. Although Solaris believes that the
expectations reflected in such forward-looking statements and/or information are reasonable, readers are cautioned
that actual results may vary from the forward-looking statements. The Company has based these forward-looking
statements and information on the Company’s current expectations and assumptions about future events including
assumptions regarding the completion of the EIA and PFS, 2024 and 2025 baseline programs and funding, that all
conditions required to draw down the remaining US$40 million of offtake financing will be obtained, that such
remaining US$40 million of offtake financing will close, that all conditions required to close the Company’s strategic
financing will be obtained including (i) receipt of the requisite approval of the TSX, (ii) receipt of regulatory approval
under the Investment Canada Act, and (iii) receipt of regulatory approval from the relevant authorities in the People’s
Republic of China, and that closing of the strategic financing will occur. These statements also involve known and
unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those
anticipated in such forward-looking statements, including the risks, uncertainties and other factors identified in the
Solaris Management’s Discussion and Analysis, for the year ended December 31, 2023 available at
www.sedarplus.ca. Furthermore, the forward-looking statements contained in this news release are made as at the
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date of this news release and Solaris does not undertake any obligation to publicly update or revise any of these
forward-looking statements except as may be required by applicable securities laws.