Melbourne, Australia, to undertake a Strategic Option Study (the “Study”) for Oroco’s Santo Tomás porphyry copper project in northwestern Mexico. Strategic Option Study Overview
July 2, 2025 NEWS RELEASE
Oroco Engages Whittle Consulting Ltd.
Vancouver, BC – July 2, 2025 – Oroco Resource Corp. (TSX-V: OCO; OTC: ORRCF) (“Oroco”
or the “Company”) is excited to announce that it has retained Whittle Consulting Ltd., based in
Melbourne, Australia, to undertake a Strategic Option Study (the “Study”) for Oroco’s Santo
Tomás porphyry copper project in northwestern Mexico.
Strategic Option Study Overview
Whittle Consulting Ltd. (“Whittle”) will collaborate with Oroco’s team to evaluate innovative
operating strategies and technologies that have the potential to enhance the Project’s value.
Utilizing Whittle’s “Integrated Strategic Planning” methodology, the Study will employ advanced
cost modeling and system constraint analysis to optimize all facets of the Santo Tomás mining
process, including an expanded North Zone mine plan. Key areas of focus will include:
• Alternative power sources
• Mining fleet electrification
• Processing technologies
• Tailings storage options
These analyses will refine pit size, stripping ratios, and cut-off grades, providing critical guidance
for the upcoming Pre-Feasibility Study (PFS) by identifying optimal operational structures and
technologies for further evaluation.
Data and Expertise
The Study will leverage the existing Mineral Resource Estimate from Oroco’s Q3 2024
Preliminary Economic Assessment (PEA) and the Company’s project database, requiring no
additional data collection. Whittle’s proven track record, with over 120 Enterprise Optimization
studies, demonstrates its ability to significantly improve project economics through its proprietary
“Prober-F” software. This advanced tool integrates Linear Programming with a sophisticated
Search Algorithm, utilizing over 300 computer cores to tackle complex, multi-variable mining
challenges.
Whittle’s team of industry experts brings extensive experience in geology, mining engineering,
metallurgy, finance, and operational modeling, ensuring a comprehensive and practical approach
to optimization.
Payment Structure
Whittle will receive 60% of its consulting fee in Oroco common shares (“Fee Shares”), to be
issued in alignment with the Company’s next equity financing, expected in 2025. The issuance is
subject to TSX Venture Exchange approval.
ABOUT OROCO
The Company holds a net 85.5% interest in those central concessions that comprise 1,173 hectares
“the Core Concessions” of The Santo Tomas Project, located in northwestern Mexico. The
Company also holds an 80% interest in an additional 7,861 hectares of mineral concessions
surrounding and adjacent to the Core Concessions (for a total Project area of 9,034 hectares, or
22,324 acres). The Project is situated within the Santo Tomas District, which extends up to the
Jinchuan Group’s Bahuerachi Project, approximately 14 km to the northeast. The Project hosts
significant copper porphyry mineralization initially defined by prior exploration spanning the
period from 1968 to 1994. During that time, the Project area was tested by over 100 diamond and
reverse circulation drill holes, totaling approximately 30,000 meters. Commencing in 2021, Oroco
conducted a drill program (Phase 1) at Santo Tomas, with a resulting total of 48,481 meters drilled
in 76 diamond drill holes.
The drilling and subsequent resource estimates and engineering studies led to a revised MRE and
an updated PEA being published and filed in August of 2024, which studies are available at the
Company’s website www.orocoresourcecorp.com and by reviewing the Company profile on
SEDAR+ at www.sedarplus.ca.
The Santo Tomás Project is located within 170 km of the Pacific deep -water port at Topolobampo
and is serviced via highway and proximal rail (and parallel corridors of trunk grid power lines and
natural gas) through the city of Los Mochis to the northern city of Choix. The property is reached,
in part, by a 32 km access road originally built to service Goldcorp’s El Sauzal Mine in
Chihuahua State.
Additional information about Oroco can be found on its website and by reviewing its profile on
SEDAR+ at www.sedarplus.ca.
For more information, please contact:
Richard Lock, CEO
Oroco Resource Corp.
Tel: 604-688-6200
Email: [email protected]
www.orocoresourcecorp.com
Neither TSX V nor its Regulation Services Provider (as that term is defined in policies of the
TSXV) accepts responsibility for the adequacy or accuracy of this release.
Cautionary Note Regarding Forward-Looking Information
This news release includes certain “forward -looking information” and “forward-looking statements”
(collectively “forward -looking statements”) within the meaning of applicable Canadian securities
legislation. All statements, other than statements of historical fact included herein, including, without
limitation, statements relating to future events or achievements of the Company, and the use of funds from
the Offering, are forward -looking statements. There is no assurance that the proceeds of the Offering will
be expended as contemplated. Many factors, both known and unknown, could cause actual results,
performance or achievements to be materially different from the results, performance or achievements that
are or may be expressed or implied by such forward -looking statements. Readers should not place undue
reliance on the forward -looking statements and information contained in this news release concerning
these matters. Oroco does not assume any obligation to update the forward-looking statements should they
change, except as required by law.