Silver

The Mining and Exploration News in Mexico: Highlights on the Fourth Week of March, 2026

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By Miguel A Heredia

During the 13th week of the year (March 23 to March 29, 2026), at least 20 press releases were issued by companies operating in Mexico, along with one news article published by the media. Of these, eight related to deals and corporate matters, four reported production results, three covered resource updates and project development, three presented exploration results, two addressed Mexico-related issues, and one announced financing activities. ON MEXICO ISSUES, The Supreme Court of Justice of the nation (SCJN) upholds the reform to the Mining Law, which designates lithium as a strategic resource exclusive to the State and prohibits private concessions by dismissing challenges filed against it. Silver Viper reported the best drilling intercepts in Mexico on the fourth week of March, 2026. ON EXPLORATION, In Zacatecas, Zacatecas Silver received the drill permit from SEMARNAT for the El Cristo Vein System, to support its 2026 drilling program aimed at increasing existing silver resources at the Zacatecas Silver project, announced arrival of drill rig and drilling crew, and released assay results for 124 rock-chip samples from El Cristo Vein System. ON MINING, Torex Gold reported year-end 2025 reserves and resources for its flagship Morelos Complex in Guerrero, as well as for its Los Reyes project in Sinaloa. Orogen announced preliminary and unaudited financial results for Q4, and year ended December 31, 2025. EV Resources has announced its transition from exploration to near-term production at the Tecomatlán plant in Puebla, where refurbishment work on the grinding circuit has commenced. Osisko reported Q4 and year-end 2025 results, and informed that it sold its interest in the San Antonio Gold project in Sonora to Axo Copper Corp.  ON FINANCING, Coeur Mining Inc.,initiated a private exchange offer for holders of New Gold´s 6.875% senior notes due 2032. The exchange offer involves USD $400M in New Gold notes swapped for up to USD $400M in Coeur´s new notes plus cash. ON RESOURCES AND DEVELOPMENT, Silver Viper and Orex released drill results from its El Rubi-Virginia project in Sonora. Pan American reported the results of a revised Preliminary Assessment Evaluation (PEA) for its la Colorada mine in Zacatecas. ON DEALS AND CORPORATE ISSUES, Guanajuato Silver., appointed David Paxton to its Board of Directors, effective immediately, announced the filing of a NI 43-101 technical report for a new mineral resource estimate for its Valenciana Mine Complex in Guanajuato, and granted stock options to directors, officers, employees, and consultants. Silverco announced the appointments of George Paspalas as Advisor, Tara Hassan as Executive Vice President, and Victoria Avila as Senior Vice President Corporate Affairs, and Finance, and granted stock options and restricted share units to certain directors, officers, and advisors.  Sierra Madre reported that it has repaid USD $2.5M of the USD $5M non-revolving, secured term loan between First Majestic and the company. Capitan Silver announced that it will commence trading on the OTCQX market under symbol “CAPTF”. GR Silver informed the sudden passing of President, CEO, and Founder Márcio Fonseca. Alamos Gold filed its annual information form and 2025 annual report on Form-40, including its audited financial statement for the year ended December 31, 2025. GoGold announced annual results from its annual general meeting of shareholders. Regency Silver appointed Raj Chowdry and Frank Cordova to the Board of Directors, effective immediately, and thanked outgoing directors Michael G. Thomson and Patrick Elliott for their contributions to the Company. ON SOCIAL RESPONSIBILITY, No relevant news.

ON MEXICO ISSUES

  • The Supreme Court of Justice of the Nation (SCJN) upholds Mining Law Reform; Lithium Exploitation to Be Exclusive to the State: El Financiero
  • Silver Viper Minerals Inc, reported the best drilling intercepts in Mexico on the fourth week of March, 2026. Details are shown in the table below:

ON EXPLORATION

ON MINING

  • Torex Gold Reports Year-End 2025 Reserves & Resources: Torex Gold Resources Inc
  • Orogen Reports Record 2025 Financial Performance and Positions for Continued Growth in 2026: Orogen Royalties Inc
  • EV Resources Limited Fast Tracks First Mover Advantage in Antimony Production with Tecomatlán Plant Refurbishment Underway: EV Resources Limited 
  • Osisko Development Reported Fourth Quarter and Year-End 2025 Results:   Osisko Development Corp

ON FINANCING

  • Coeur Mining  announces Commencement of Exchange Offer and Consent Solicitation for New Gold Senior Notes: coeur mining inc 

ON RESOURCES AND DEVELOPMENT

  • Silver Viper hits 11.70 M @ 9.18 G/T Au And 352.0 G/T Ag Including 0.50 M @ 183.50 G/T Au And 6,850 G/T Ag While Infill Drilling At El Rubi And Expands The 5,000 M Drill Program At La Virginia Project In Sonora Mexico:  Silver Viper Minerals Inc
  • Orex Minerals Highlights Silver Viper’s High-Grade Drill Results at La Virginia, Sonora, Mexico: Orex Minerals Inc
  • Pan American Announces revised PEA for the La Colorada Skarn Project, Positioning La Colorada as a future Top-tier Silver Mine: Pan American Silver Corp

ON DEALS AND CORPORATE ISSUES

ON SOCIAL RESPONSIBILITY

  • No relevant news.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, HQ core showing a hydrothermal breccia/ vein in an intermediate sulphidation epithermal system in Chihuahua, Mexico. Photo taken by Miguel A Heredia.

The Mining and Exploration News in Mexico; Highlights on the Third Week of March 2026

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By Jorge Cirett

Since 2015 Miguel Heredia and I have published the weekly newsletter ‘The Mining and Exploration News in Mexico’. It has been a very rewarding  experience and we have learnt a lot in the process on Mexico and on the global mining industry. Although a pro-bono project, the previous format consumed a lot of time. We realized we could not keep reasonably doing this task in the same manner when recently had to put more than 10 hours in the week for producing the newsletter, while doing long hours on project work at the same time. To sustain this contribution, we are introducing a new, streamlined format with all the key mining activity in Mexico, with links to all the original press releases and sources. It is our intention to continue serving the industry as long as it remains fun and rewarding as it has been so far.    

During the 12th week of the year (March 16th to March 22nd, 2026), companies working in Mexico released 32 press releases. Four companies informed on early-stage property work, four more presented quarterly and/or full-year 2025 reports. Three companies updated on financing rounds/movements, another is not proceeding with a financing round and one more is to list in the OTCQB. Two companies presented drilling results on their advanced projects, while four more informed on their incoming drill programs. One company informed on development contracts while one more received a long awaited mining permit. Finally, one company received an economic update for its project.  ON MEXICO ISSUES, no relevant news. ON EXPLORATION, in Sonora, Questcorp Mining and Riverside Resources  completed the acquisition of key claims on La Union. In Durango, Pinnacle Silver and Gold discovered mineralization after a LiDAR survey at El Potrero. In Michoacán, Canadian Silver Hunter released assay results from surface sampling of stockpiles at an undisclosed project. ON MINING, Heliostar Metals (Ana Paula, Guerrero), Orla Mining (Camino Rojo, Zacatecas), Gold Resource (Don David, Oaxaca) and Elemental Royalty (royalty on Mercedes, Sonora) presented Q4 and/full year 2025 results. ON FINANCING, three companies informed on financing rounds/movements: Barksdale Resources (San Javier, Sonora) completed a shares for debt transaction of US$351 K and completed a private placement for C$763 K. Orogen royalties informed that the company will not proceed with the previously announced private placement. Silverco Mining commenced trading on the OTCQB.  ON RESOURCES AND DEVELOPMENT, Heliostar Metals reported drilling results from San Agustín, in Durango. Silver Tiger announced contracts for development engineering and management for El Tigre, in Sonora. Orla Mining received the environmental permit for the Camino Rojo project in Zacatecas. Southern Silver Exploration presented drill results from Cerro Las Minitas in Durango. Silverco Mining announced a 30,000 m drilling program at Cusi, in Chihuahua. Pacifica Silver announced the expansion to 20,000 m of the drill program at Claudia in Durango. Zacatecas Silver received the drilling permit for its Zacatecas Silver project in Zacatecas. Silver Dollar contracted 3,500 m of drilling for La Joya, in Durango. Royalties Inc. received an economic update for the Bilbao project in Zacatecas. ON DEALS AND CORPORATE ISSUES, Orex Minerals entered into a definitive share purchase agreement with Silver Viper Minerals and Fresnillo plc to sell Silver Viper the Coneto project in Durango, for US$15 M in shares. Azucar Minerals announced the change name to Mustang Minerals Ltd. (El Cobre, Veracruz). Xali Gold announced an appointment to the board. EV Resources secured a plant for antimony production (Los Lirios, Oaxaca). ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

ON EXPLORATION

  • Pinnacle Discovers Silver-Lead-Zinc Mineralization Following up on LiDAR Survey at El Potrero : Pinnacle Silver and Gold
  • Canadian Silver Hunter Announces Assay Results : Canadian Silver Hunter
  • Questcorp Mining and Riverside Resources Consolidate Key Mineral Concessions for the La Union Project in Sonora, Mexico : Questcorp Mining
  • Riverside Resources and Questcorp Consolidate Key Mineral Concession for Union Project, Sonora, Mexico : Riverside Resources 

ON MINING

  • Elemental Royalty to Release Q4 and Full Year 2025 Results on Tuesday, March 24, 2026 : Elemental Royalty
  • Gold Resource Corporation Reports Financial Results for the Year Ended December 31, 2025 : Gold Resource
  • Orla Mining Reports Fourth Quarter 2025 Financial Results : Orla Mining
  • Heliostar Presents Fiscal 2025 Financial Results : Heliostar Metals 

ON FINANCING

ON RESOURCES AND DEVELOPMENT

  • Pacifica Silver Expands Phase II Drill Program at Claudia to 20,000 m; Appoints Dr. Steven I. Weiss as Interim VP Exploration : Pacifica Silver
  • Silverco Mining Commences 30,000-Meter 2026 Drill Program at Cusi, Targeting Massive Step-Out Potential and Regional Blue-Sky Prospects : Silverco Mining
  • Silver Dollar Hires Versa for Diamond Drilling at Its La Joya Silver (Cu-Au) Project : Silver Dollar Resources
  • Heliostar Drills Multiple Gold Intercepts over 200 Metres From Pit Edge at San Agustin : Heliostar Metals2
  • Silver Tiger Awards Engineering Procurement and Construction Management Contract and Provides Construction Update : Silver Tiger Metals
  •  Orla Mining Receives Permits to Extend Operations in Mexico Supporting Company’s Long-Term Commitment to Camino Rojo : Orla Mining
  • Southern Silver Intersects 6.3 Metres Averaging 874g/t AgEq at Cerro Las Minitas Project in Durango, México : Southern Silver Exploration
  • Zacatecas Silver Receives Drill Permit for El Cristo, Supporting 2026 Drill Program Aimed at increasing Existing Silver Resource at the Zacatecas Silver Project : Zacatecas Silver
  • Royalties Inc. Receives Bilbao Project Economic Update : Royalties Inc

ON DEALS AND CORPORATE ISSUES

  • Silver Viper Minerals announced execution of definitive agreement to acquire the Coneto Silver-Gold Project: Silver Viper Minerals
  • Orex Minerals Inc. Announces Sale of the Coneto Silver-Gold Project to Silver Viper Minerals Corp. :  Orex Minerals
  • Azucar Minerals Ltd. Announces Change of Name to Mustang Minerals Limited : Azucar Minerals
  • Ms. Chafika Eddine joins Xali Gold Board of Directors : Xali Gold
  •  EVR Secures Plant To Fast Track Antimony Production : EV Resources

ON SOCIAL RESPONSIBILITY

  • No Relevant News.

On the image below: specularite, hematite, pyrite and chlorite on volcanosedimentary rocks, HQ core. Picture by Jorge Cirett.

Mexico’s Best Drilling Intercepts, Third Week of March 2026

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Two companies released results from drilling campaigns in Mexico during the week.

Heliostar Metals released the first results from drilling at the San Agustín project since its acquisition. The company is to invest US$9.75 M in resources and reserve oxides drilling in 2026, with the program involving 15,000 to 18,000 m of drilling. To date Heliostar has completed 7,230 m in 75 holes in three of eight target areas, namely Corner Expansion, Phase 3 SW and MKT zones. “Encouraging results at the Corner Expansion Zone have driven the decision to expand the drill program to define a potential resource. This drilling will include both core and reverse circulation (“RC”) ….. This will allow Heliostar to gather the engineering and metallurgy information required to evaluate an additional pit layback beyond the reserve that is currently being mined”. From the project’s technical report the “San Agustin deposit is an intermediate sulfidation style epithermal gold-silver system with vertical base-metal zonation associated with a dacite dome complex. Early potassic alteration could be associated to tourmaline breccias with a possible genetic connection to a porphyry that may be located either vertically or laterally to the deposit.”

Southern Silver Exploration reported assays from drilling at the Puro Corazon claim within its Cerro Las Minitas project in Durango. This update includes results from the current program and the extension of a hole collared in 2012. “Mineralization in these holes is localized within the skarn-altered halo immediately adjacent to the central intrusion or alternatively, form carbonate replacement zones, further out-board from the intrusive body at the skarn / marble transition”. Twenty three holes have been completed on this program, and the drill crews have been demobilized.

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