Centenario encounters high-grade copper mineralization at Los Reyes
(TheNewswire)
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June 4th, 2026 – TheNewswire – Vancouver, BC - Centenario Gold Corp. (TSXV: CTG) ("Centenario” or the “Company”) is pleased to announce that the Company has completed the first phase exploration program on the Los Reyes Project (“the Project”), a highly prospective copper and gold asset located near the city of Chihuahua, Mexico.
This first phase of exploration consisted of mapping and sampling of old mine dumps and underground workings found along the intrusive-limestone contact zone where Cu-rich skarn zones are encountered. Most of the old mining tunnels were built by ASARCO in the late 1800s to early 1900s. Old government records state that approximately 200,000 tons of Cu-Zn-Ag material was mined out of Los Reyes during that period.
The Los Reyes Project is located 225 km south of Chihuahua City, along Highway 49, a main artery connecting the city of Chihuahua to the major cities of Torreon and Monterrey further south. The projects El Rey mineral claim, where most of the old mine workings are located, sits just off Highway 49, some 14 km south of the mid-size town of Jimenez and can be easily accessed driving up a secondary dirt road for a few kilometers (Photo 1.).
The Los Reyes property is composed of two mineral claims: El Rey, 36.0 hectares, and El Rey 2, 9.3 hectares, located approximately 1.8 km apart. Each claim covers a segment of the intrusive-sediment contact where mineralization occurs. The El Rey mineral claim to the east (Figure 1.), where the present exploration work is being done, contains the most important old mine workings found in the district. Penoles, a major Mexican mining company, controls all of the surrounding ground around the perimeter of the granodiorite intrusive (Figure 1...)
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Figure 1. Location of the Los Reyes Project, Chihuahua. Mexico
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Photo 1. Los Reyes Property looking to the northwest
Exploration Program
This first phase exploration program was designed to review and field-check the existing geological and exploration data (IMMSA 1992, and Valterra Resources Corporation 2019) and to complete an initial rock sampling program across shallow mining pits and segments of the old underground mine workings found on the El Rey mineral claim.
This first phase exploration program was designed to review and field-check the existing geological and exploration data (IMMSA 1992, and Valterra Resources Corporation 2019) and to complete an initial rock sampling program across shallow mining pits at surface and segments of the old underground mine workings found on the El Rey mineral claim. Until now, no modern, systematic sampling was ever done across the underground portion of the Los Reyes Project.
The first phase exploration field work included:
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Geologicalandmineralogicalreconnaissancework,includingalterationmapping,coveringthe central portion of the claim towards the south.
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Collectionoftotalof58rock samples:
a) 7 taken from surface rock outcrops near the central area,
b) 11 from old waste dumps and shallow pits near the Tuesda shaft
c) 12 rock chip samples taken underground at the Tuesda mine
d) 28 rock chip samples taken underground at the Jibosa mine
The collection of the surface and underground rock samples at Los Reyes was supervised by a senior professional geologist. The rock samples taken both on surface and underground consisted of rock chips, < 5cm in diameter, collected across rock outcrops with the help of a chisel and hammer. Samples weighted between 1.5 kg and 2.0 kg. The length of the rock outcrop sample cuts varied from 0.3m to 3.0m. Each sample’s chips were then transferred to a cotton cloth bag, labelled and tied with a string.
At the end of each day, the samples were transferred to larger corn bags, labelled, sealed with a zip-tie and stored at the hotel in the town of ‘Jimenez’. After 10 days, when the initial exploration program was completed, the supervising geologist transported the samples to the sample preparation lab of ALS Chemex in the city of Chihuahua. Each corn bag, containing 10 to 12 samples, was labelled and photographed before being transferred to the Laboratory’s pick-up service agent.
The rock samples are being analyzed by ALS Chemex of Mexico. Sample preparation included high-temperature drying, crushing and pulverizing. Samples were then geochemically analyzed using the standard Fire Assay method for Au and the acid digestion (HF-HNO3-HClO4) for 34 other elements.
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Figure 2. Location of the El Rey Mineral Claim, Los Reyes Project
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Photo 2. Top of the he Tuesda mining shaft at the Los Reyes Project
At El Rey, the Cu-rich skarn mineralization occures sporadically for more than 800 meters along the north south trending granodiorite - limestone contact. On surface the altered zone ranges up to 120 meters in width. The contact’s dip varies between vertical and 75 degrees to the East. The alteration shows a typical skarn zoning pattern, varying gradually outwards to the east, away from the intrusive granodiorite: skarn - marble - recrystallization in the limestone unit, and lastly, hornfels with some thin garnet bands in the overlying unit.
The Cu-rich mineralization occurs as chalcopyrite, bornite, malachite, azurite and chalcocite within irregular, semi tabular, lenses or bodies, that can be up to 60 meters wide. Some of the zones previously mined by Asarco were reported to exceed 125 meters in length. The mineralized zone identified and sampled below the Tuesda shaft, although irregular in shape, showed a thickness of up to 20 m. At Jibosa on the other hand, where the mineralization is better defined, the thickness of the mineralized body did not exceed 15 m.
Higher sulfide content is presumed to persist further north of the Tuesda Shaft. In several old mine dumps found at El Rey, fragments of magnetite and skarn with magnetite and specularite were found, suggesting the existence of Cu-Au skarn-type mineralization associated with the system.
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Figure 3. Location of the old mining tunnel network on the El Rey Mineral Claim, Los Reyes Project
Conclusion
Results from the 58 rock samples taken during this initial phase of exploration work and sent to ALS Chemex Laboratories are expected to be received by mid June. Once the geochemical assay results are in, the Company will release the pertinent information as promptly as possible. The rock sample assays will supply the Company with valuable geochemical information that will help us in better understanding the controls, distribution and extension of mineralization.
The completion of this first phase exploration program will lead to the next phase of exploration, the drilling program, which is planned to begin in July. The proposed 1500 meters drill program is specifically designed to test the strike or down-dip extensions (>50 meters below surface) of the Cu-rich skarn zones that were identified by the underground sampling and mapping work. The two most important drill target areas are close to the Jibosa and Tuesda mining shafts.
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Photo 3. Access to underground workings at the Jibosa shaft, Los Reyes Project
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Photo 4. Access to underground workings near the Tuesda shaft, Los Reyes Project
Derrick Strickland is an independent Qualified Person as defined by National Instrument 43-101 and has reviewed and approved the technical disclosure contained in this release.
Reader Caution: The qualified person has not verified the information on the adjacent properties nor mineralization found on adjacent and/or geologically similar properties which is not necessarily indicative of mineralization found on the Property.
Centenario Gold Corp. is a mineral exploration company incorporated in British Columbia and headquartered in Vancouver, Canada. The Company is focused on the acquisition, exploration, and development of high-potential mineral projects in the Americas, with a primary emphasis on gold, copper and silver.
The Company is committed to responsible exploration and development, working closely with local communities and stakeholders. Centenario’s management team brings extensive experience in mineral exploration, project development, and capital markets.
Centenario Gold Corp. is listed on the TSX Venture Exchange and continues to evaluate new opportunities to expand its portfolio in both Mexico and Canada and deliver value to shareholders.
Further information on the Centenario Gold or their Properties can be found on our website at www.centenariogold.com.
On behalf of the Board of Directors,
Doug Fulcher
dfulcher@centenariogold.com
604-803-5901
The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release. Statements in this press release, other than purely historical information, including statements relating to the Company's future plans and objectives or expected results, may include forward-looking statements. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in resource exploration and development. As a result, actual results may vary materially from those described in the forward-looking statements
Caution Regarding Forward Looking Statements:
Certain information included in this press release, including information relating to future financial or operating performance and other statements that express the expectations of management or estimates of future performance constitute “forward-looking statements”. Such forward-looking statements include, without limitation, statements regarding copper, gold and silver forecasts, the financial strength of the Company, estimates regarding timing of future development and production and statements concerning possible expansion opportunities for the Company. Where the Company expresses or implies an expectation or belief as to future events or results, such expectation or belief are based on assumptions made in good faith and believed to have a reasonable basis. Such assumptions may include, without limitation, the price of and anticipated costs of recovery of, copper concentrate, gold and silver, the presence of and continuity of such minerals at modeled grades and values, the capacities of various machinery and equipment, the availability of personnel, machinery and equipment at estimated prices, mineral recovery rates, and others. However, forward-looking statements are subject to risks, uncertainties and other factors, which could cause actual results to differ materially from future results expressed, projected or implied by such forward-looking statements. Such risks include, but are not limited to, interpretation and implications of drilling and geophysical
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