Oroco Receives Positive Resolution from Mexico’s Environment Ministry

VANCOUVER, Canada, Aug. 13, 2025 (GLOBE NEWSWIRE) -- Oroco Resource Corp. (TSX-V: OCO; OTC: ORRCF) (“Oroco” or the “Company”) is pleased to announce that it has received a positive resolution from the Mexican Federal Secretaría del Medio Ambiente y Recursos Naturales (“SEMARNAT”) to its “informe preventivo” notice of exploration activities on the Santo Tomas Project.  As a result of the positive resolution, the Company’s planned drilling and exploration activities “… do not require obtaining the authorization in matters of Environmental Impact granted by this Secretariat and therefore can be carried out in accordance with the characteristics indicated in the IP presented for the project.”  Consequently, the Company may proceed with the scope of drilling and exploration on the Santo Tomas Project set out in the notice without an Environmental Impact Authorization from SEMARNAT.

“This positive response from SEMARNET is truly noteworthy,” stated Oroco’s Chairman, Craig Dalziel.  “It further increases our confidence in the overall cooperation and support of the Mexican government and SEMARNAT regarding the Santo Tomas Project and provides an early example of the positive effect of the project’s inclusion in Plan Sinaloa, the recently announced regional development initiative.”

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 4,948 hectares of mineral concessions surrounding and adjacent to the Core Concessions (for a total Project area of 6,121 hectares, or 15,125 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.

Subsequent to the drilling at Santo Tomas, the 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 online at the Company’s website at and by reviewing the Company profile on SEDAR+ at .

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 .

For more information, please contact:

Craig Dalziel, Chairman

Oroco Resource Corp. 

Tel: 604-688-6200 

Email:  

Neither TSXV 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 la