Oroco Completes Airborne Magnetics Survey and Updates 3D IP Survey Progress at Santo Tomas

March 3, 2021

VANCOUVER, British Columbia – (March 3, 2021) Oroco Resource Corp. (TSX-V: OCO) (“Oroco” or “the Company”) is pleased to announce the successful completion of the airborne component of a helicopter magnetics survey over the Santo Tomas Project (“the Project”), and to provide an update on the 3D induced polarization survey in progress on the Project.

Magnetics Survey. The Company has completed a helicopter magnetics survey performed by Terraquest Ltd. (“TQ”) using a high sensitivity cesium vapour magnetometer, a gamma ray spectrometer and TQ’s proprietary Matrix very low frequency electromagnetic (“VLFEM”) system. The survey was completed with the collection of 2,231 line kilometers of data with an east-west tie-line separation of 50 metres and a north-south tie-line separation of 500 metres. Independent quality monitoring of the survey is being provided by Condor Consulting, Inc. of Lakewood, CO. The Company expects to receive the processed magnetics, VLFEM and radiometric data from TQ within the next two months. The Company will then analyze the data to assist in the mapping of the sub-surface geology of the Project.

3D IP Survey. Further to its news release of January 27, 2021, the Company has completed the deep, three-dimensional Induced Polarization geophysical survey (“3D IP”) over the south eastern extension to the project survey grid on the South Zone of the Project, closing off the eastern extension of the South Zone chargeability feature.

The Company has now relocated the survey team to the Brasiles Zone in the northern part of the grid and commenced the survey of the continuation of NNE striking, west-dipping, chargeability-high response which the 3D IP survey has already demonstrated extends from the North Zone to the prominent gossan of the Brasiles Zone. The Company is taking advantage of the current low water levels in the Huites Reservoir to collect data from previously inaccessible areas, and will continue the 3d IP survey for another 800 metres to the north. The Company may extend the survey further in the event that the Brasiles chargeability feature has not been closed off. Subject to such extensions, the DCIP survey is approximately 80% complete.

The relative outlines of the airborne magnetics and field-based DCIP geophysical surveys are shown in the map in Figure 1.

Figure 1: Map showing the extents of aeromagnetic and ground DCIP geophysical surveys.
Map showing the extents of aeromagnetic and ground DCIP geophysical surveys.


The Company holds a net 61.4% interest in the collective 1,172.9 ha core concessions of the Santo Tomas Project in NW Mexico and may increase that majority interest up to an 81.0% interest with a project investment of up to CAD$30 million. The Company also holds a 77.5% interest in 7,807.9 ha of mineral concessions surrounding and adjacent to the core concessions (for a total project area of 22,192 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 north-east. Santo Tomas hosts a significant copper porphyry deposit 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, totaling approximately 30,000 meters. Based on data generated by these drill programs, a historical Prefeasibility Study was completed by Bateman Engineering Inc. in 1994.

The Santo Tomas Project is located within 160km 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 originally built to service Goldcorp’s El Sauzal Mine in Chihuahua State.

For further information, please contact:

Mr. Craig Dalziel, President and CEO
Oroco Resource Corp.

Tel: 604-688-6200


Neither 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 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, are forward-looking statements. There can be no assurance that such forward-looking statements will prove to be accurate, and actual results and future events could differ materially from those anticipated or implied in such statements. 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.

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These historical resource estimate models are based upon historical resource estimates prepared by John Thornton in 2011. While, in the opinion of Dane A. Bridge, author of the revised NI 43-101 standard technical report, Geology, Mineralization and Exploration of the Santo Tomas Cu-(Mo-Au-Ag) Porphyry Deposit, Sinaloa, Mexico dated April 21, 2020 (the “Report”), reliable estimation practices were used, in order to upgrade or verify the historical estimations, resampling and assay of historical drill samples, twinning of historical drill holes, and a new program of regularly spaced drilling is required. No qualified person has undertaken sufficient work to classify the current mineral resources or mineral reserves upon which these models are based and the Company is not treating the estimates as current estimates of the mineral resources. The Company gives no assurance that either these models or the historical resource estimates upon which they are based are accurate, and does not undertake any obligation to update the models or to release publicly any update or revisions of the resource estimates except as required by applicable securities law. The reader is cautioned not to rely upon these models or the historical resource estimates upon which they are based.

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