Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

OCO.V ·

Oroco Announces Filing of Technical Report FOR the Santo Tomas Project

Resource Estimates Technical Reports (NI 43-101)

OROCO RESOURCE CORP.

1201-1166 Alberni Street, Vancouver, BC V6E 3Z3

T: 604.688.6200 F: 604.688.6260

www.orocoresourcecorp.com

June 16, 2023 NEWS RELEASE

OROCO ANNOUNCES FILING OF TECHNICAL REPORT FOR THE SANTO TOMAS PROJECT

VANCOUVER, CANADA, June 16, 2023 – Oroco Resource Corp. (“Oroco” or the “Company”) (TSXV: OCO;

OTCQB: ORRCF, BF: OR6) is pleased to announce that it has filed a report titled Santo Tomas Project NI 43-

101 Technical Report Mineral Resource Estimate” (the “ Report”) prepared in accordance with National

Instrument 43-101 – Standards of Disclosure of Mineral Projects (“NI 43-101”). The Report is in support of the

mineral resource estimate for Oroco’s Santo Tomas Project in Sinaloa Mexico, previously reported in the

Company's news release of May 3, 2023.

This report was prepared as a NI 43-101 technical report on a mineral resource estimate for Oroco Resource

Corporation (Oroco or the Company) by Ausenco Engineering USA South Inc. and Ausenco Engineering

Canada, Inc. and SRK Consulting (US), Inc., SRK Consulting (Canada), on the Santo Tomás Project (the

Project) with an effective date of April 21, 2023. The Report is available on SEDAR under the Company’s

issuer profile at www.sedar.comand on its website at https://orocoresourcecorp.com/projects/technical-

reports/.

ABOUT OROCO

The Company holds a net 85.5% interest in the collective 1,172.8 hectare (“ ha”) “Core Concessions” of the

Santo Tomas Project in northwestern Mexico. The Company also holds an 80% interest in 7,861.3 ha of

mineral concessions surrounding and adjacent to the Core Concessions (for a total project area of 22,323.8

acres). The Project is situated within the Santo Tomas District, which extends from Santo Tomas up to the

Jinchuan Group’s Bahuerachi project, approximately 14 km to the northeast. Santo Tomas hosts significant

copper porphyry mineralization defined by prior exploration spanning the period from 1968 to 1994. During

that time, the property was tested by over 100 diamond and reverse circulation drill holes, totalling

approximately 30,000 meters. The Company has completed its 2021-2023 drill program (Phase 1) at Santo

Tomas with a total of 48,481 meters drilled in 76 diamond drill holes.

The Santo Tomas Project is located within 160 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 by a 32 km access road, part of

which was originally built to service Goldcorp’s El Sauzal Mine in Chihuahua State.

Additional information on Oroco can be found on its website at www.orocoresourcecorp.com and by reviewing

its profile on SEDAR at www.sedar.com.

For further information, please contact:

Richard Lock, CEO

Oroco Resource Corp.

Tel: 604-688-6200

Email: [email protected]

www.orocoresourcecorp.com

Cautionary Note Regarding Forward-Looking Information

This news release contains “forward-looking information” within the meaning of applicable Canadian securities

legislation based on expectations, estimates and projections as at the date of this news release. Forward-

OROCO RESOURCE CORP.

1201-1166 Alberni Street, Vancouver, BC V6E 3Z3

T: 604.688.6200 F: 604.688.6260

www.orocoresourcecorp.com

looking information involves risks, uncertainties and other factors that could cause actual events, results,

performance, prospects and opportunities to differ materially from those expressed or implied by such forward-

looking information. All statements other than statements of fact included in this document constitute forward-

looking information, including, but not limited to, objectives, goals or future plans, statements regarding

anticipated exploration results and exploration plans, Oroco’s expectations regarding the future potential of

the Santo Tomas deposits, its plans for additional drilling and other exploration work on the Santo Tomas

deposits, its expectations regarding the production of a Preliminary Economic Assessment (“ PEA”) for Santo

Tomas and the potential to advance the PEA study.

Forward-looking information is not, and cannot be, a guarantee of future results or events. Forward-looking

information is based on, among other things, opinions, assumptions, estimates and analyses that, while

considered reasonable by the Corporation at the date the forward-looking information is provided, inherently

are subject to significant risks, uncertainties, contingencies and other factors that may cause actual results

and events to be materially different from those expressed or implied by the forward-looking information.

Factors that could cause actual results to differ materially from such forward-looking information include, but

are not limited to, capital and operating costs varying significantly from estimates; the preliminary nature of

metallurgical test results; delays in obtaining or failures to obtain and comply with required governmental,

environmental or other project approvals; uncertainties relating to the availability and costs of financing needed

in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development

of the project; COVID-19 and other pandemic risks; those other risks involved in the mineral exploration and

development industry; and those risks set out in the Corporation’s public documents filed on SEDAR at

www.sedar.com.

Should one or more risk, uncertainty, contingency or other factor materialize or should any factor or assumption

prove incorrect, actual results could vary materially from those expressed or implied in the forward-looking

information. Accordingly, you should not place undue reliance on forward-looking information. Oroco does not

assume any obligation to update or revise any forward-looking information after the date of this news release

or to explain any material difference between subsequent actual events and any forward-looking information,

except as required by applicable law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. No

stock exchange, securities commission or other regulatory authority has approved or disapproved the

information contained herein.