Mineral Resource Estimate

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

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By Jorge Cirett

During the 42nd week of the year (October 12th to October 18th, 2026), 20 companies working in Mexico released press releases. No companies reported activities on early-stage projects. Six companies reported quarterly results and one restarted milling operations. Two companies closed financing rounds, one other completed subscription financing and two more attended conferences. One company reported drilling results, another one received environmental permits, and one more provided an exploration update. Four companies reported on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, no relevant news. ON MINING, Endeavour Silver restored mill operations at Guanceví, in Durango. Luca Mining, Mining Americas, Luca Mining, Equinox Gold, GoGold Resources and Guanajuato Silver Company reported Q3 Results. ON FINANCING. Silver Tiger Metals closed a C$100 M bought deal financing. Luca Mining completed a C$211 M subscription receipt financing. Vortex Metals closed the second tranche of a non-brokered private placement for C$600 K. ON RESOURCES AND DEVELOPMENT, Impact Silver elaborates on a gold mining opportunity and updates on exploration at Plomosas, in Chihuahua. Heliostar Metals submitted environmental permits for Ana Paula, in Guerrero. Silverco Mining reported drilling results from Cusi, in Chihuahua. ON DEALS AND CORPORATE ISSUES, First Majestic Silver announced a probable settlement agreement with Mexico on NAFTA arbitration proceedings. Goldgroup completed its strategic investment in Luca Mining. Xali Gold made an appointment to the board. ON SOCIAL RESPONSIBILITY, Americas Gold and Silver published its corporate sustainability report and established its baseline GHG.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • No Relevant News.

ON MINING

  • Luca Reports Q3 2026 Production Results: Luca Mining  (Campo Morado, Guerrero)
  • Mining Americas Reports Third Quarter 2026 Gold Production and Provides Notice of Third Quarter Results and Conference Call: Mining Americas (Cerro de Oro, Zacatecas)
  • Equinox Gold Reports Q3 Production Results Following Transformational Combination with Orla; Expanded Canadian Production Platform Positioned for Strong Finish to 2026: Equinox Gold (Camino rojo, Zacatecas)
  • Endeavour Silver Restores Guanaceví Mill to Full Capacity Following Trunnion Replacement: Endeavour Silver (Guanaceví, Durango)
  • GoGold Announces 2026 Annual Production: GoGold Resources (Parral tailings, Chihuahua)
  • Guanajuato Silver Provides Q3 2026 Production Results: Guanajuato Silver Company (El Cubo, Guanajuato)
  • Avino Announces Q3 2026 Production Results: Avino Silver & Gold Mines (Avino and La Preciosa, Durango)

ON FINANCING AND SHARES

  • Silver Tiger Announces Closing of C$100,050,000 Bought Deal Financing Including Full Exercise of the Over-allotment Option: Silver Tiger Metals  (El Tigre, Sonora)
  • Luca Mining Completes C$211 Million Subscription Receipt Financings in Connection with the Proposed Acquisition of Capstone Copper’s Cozamin Mine: Luca Mining (Cozamin, Zacatecas)
  • Vortex Metals Attends the 26th Munich Equity Investment Conference: Vortex Metals (Riqueza Marina, Oaxaca)
  • Vortex Metals Closes Second Tranche of Non-Brokered Private Placement: Vortex Metals
  • Regency Silver to Present at the Centurion One Capital 4th Annual Bahamas Summit: Regency Silver (Dios Padre, Sonora)

ON RESOURCES AND DEVELOPMENT

  • Impact Silver Outlines Capire Gold Opportunity and Plomosas Operating and Exploration Update: Impact Silver  (Plomosas, Chihuahua)
  • Heliostar Submits Environmental Permit Applications for Ana Paula: Heliostar Metals (Ana Paula, Guerrero)
  • Silverco Mining Intercepts 1,280 g/t Silver over 3.35 Metres True Width at Its 100%-Owned Cusi Mine in Chihuahua, Mexico: Silverco Mining (Cusi, Chihuahua)

ON DEALS AND CORPORATE ISSUES

  • First Majestic Announces Temporary Suspension of NAFTA Arbitration Proceedings as Settlement Framework Agreed to with Mexico: First Majestic Silver  (San Dimas, Durango)
  • Goldgroup Completes Strategic Investment in Luca Mining: Goldgroup Mining (San Francisco, Sonora)
  • Xali Gold Appoints Susan Mitchell as Senior Financial Advisor: Xali Gold (El Oro, Estado de México

ON SOCIAL RESPONSIBILITY

Americas Gold and Silver Publishes Inaugural Corporate Sustainability Report and Establishes GHG Baseline: Americas Gold and Silver (Cosalá, Sinaloa)

On the image below: Shear zone on intrusive rocks in northern Sonora. Picture by Jorge Cirett

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

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By Jorge Cirett

During the 38th week of the year (September 14th to September 20th, 2026), 33 companies working in Mexico released press releases. Not a single company reported activities on early-stage projects. One company reported quarterly results. Five companies were added to the GDXJ ETF and one more began trading on the TSX. One company informed on a financing round for US$125 M, another raised A$1.5 M and one more obtained a US$200 M loan facility. Two companies declared a quarterly dividend and one another consolidated its shares. Four companies released drilling results from their advanced properties. One company reported mineral reserves and resources for its properties, one another informed on surface access and one more on an agreement on mining concessions. Twelve companies reported on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, no relevant news. ON MINING, Starcore International Mines presented quarterly results. ON FINANCING. Heliostar Metals, Elemental Royalty, Silver Tiger, Silver Storm Mining and Sinda were included on the GDXJ. Goldgroup Mining upsized its private placement to US$125 M. Santacruz Silver Mining is to trade on the TSX. Elemental Royalty declared a dividend. EVR raised A$1.5 M and consolidated its shares. Aura Minerals secured a US$200 M loan facility. ON RESOURCES AND DEVELOPMENT, Capitan Silver announced drilling results from its Cruz de Plata project in Durango. Apollo Silver informed on community support at Cinco de Mayo, in Chihuahua. Axo Metals reported step out drilling results at San Antonio, in Sonora. Kootenay Silver released drilling results from Columba, in Chihuahua. Pan American Silver reported mineral reserves and resources, including several of its Mexican properties. Americas Gold and Silver announced good drilling results from Cosalá in Sinaloa. ON DEALS AND CORPORATE ISSUES, Sailfish Royalty entered into an agreement with Mako Mining. Pacifica Silver and Silver Tiger announced AGM results. Fresnillo plc reported on board changes. Elemental Royalty completed the acquisition of Vizsla Royalties. Minaurum Silver announced management appointments. Orex Minerals informed on reporting framework. Zacatecas Silver announced a services agreement. Xali Gold provided an update on its Mexican properties. EV Resources changed name to Antimony Resources. Mercado Minerals signed a LOI to acquire more mining concessions at the Zamora project in Sinaloa. ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • No Relevant News

ON MINING

ON FINANCING AND SHARES

  • Heliostar Announces Inclusion in the GDXJ: Heliostar Metals  (Ana Paula, Guerrero)
  • Elemental Royalty Announces Inclusion in the GDXJ: Elemental Royalty (royalty on Mercedes, Sonora)
  • Silver Tiger Added to GDXJ Junior Gold Miners ETF and Provides Construction Update: Silver Tiger (El Tigre, Sonora)
  • Goldgroup Upsizes Private Placement to US$125 Million in Response to Strong Investor Demand: Goldgroup Mining (San Francisco, Sonora)
  • Silver Storm Announces Inclusion Into the Benchmark Index Tracked by the GDXJ ETF: Silver Storm Mining (La Parrilla, Durango)
  • Santacruz Silver Announces September 21, 2026 Trading Date on the Toronto Stock Exchange: Santacruz Silver (Zimapán, Hidalgo)
  • Elemental Royalty Declares Quarterly Dividend and XAU ₮ Token Payment Alternative for Shareholders: Elemental Royalty (royalty on Mercedes, Sonora)
  • EVR Completes A$1.52 Million Rights Issue to Advance Tecomatlán Antimony Production: EV Resources (Los Lirios, Oaxaca)
  • EV Resources Completes Strategic Capital Consolidation: EV Resources (Los Lirios, Oaxaca)   
  •  Aura Minerals Announces USD 200 Million Syndicated Loan Facility: Aura Minerals (Aranzazu, Zacatecas)
  • Sinda Ltd. Announces Inclusion in the VanEck Junior Gold Miners ETF (GDXJ): Sinda (Caracol, Guanajuato)
  • Regency Silver to Attend the 2026 Precious Metals Summit Beaver Creek: Regency Silver (Dios Padre, Sonora)
  • Royalties Inc. Investee Company Music Royalties Inc. Pays Milestone 80th Monthly Dividend: Royalties Inc (royalty on Cozamin, Zacatecas)

ON RESOURCES AND DEVELOPMENT

  • Capitan Silver Intersects High-Grade Silver Equivalent Mineralization at All Priority Target Areas: Capitan Silver  (Cruz de Plata, Durango)
  • Apollo Silver Reaffirms Its Support for Ejido Benito Juárez on Long Term Water Solutions: Apollo Silver (Cinco de Mayo, Chihuahua)
  • Axo Metals Drilling Intercepts 18.00 Metres of 8.15 g/t Au at San Antonio Project; First Step Out Drilling Reports Strong Grades Directly from Surface 750 Metres Beyond Resource: Axo Metals (San Antonio, Sonora)
  • Kootenay Reports Drill Results as 60,000-Meter Columba Program Advances: Kootenay Silver (Columba, Chihuahua)
  • Pan American Silver Reports Mineral Reserves and Mineral Resources as at June 30, 2026 Pan American Silver (La Colorada, Zacatecas)
  • Americas Gold and Silver Announces Some of the Best Grade-Widths Drilled to Date at the Cosalá Complex Including High-Grade Drill Results of 654.7 g/t Ag, 1.5% Cu Over 20.5 Meters and 409.3 g/t Ag, 0.8% Cu Over 14.1 Meters: Americas Gold and Silver (Cosalá, Sinaloa)
  • Galore Resources Announces Recording of Assignment Agreement for Los Gemelos I and Duende 7 Concessions: Galore Resources (Dos Santos, Zacatecas)

ON DEALS AND CORPORATE ISSUES

  • Sailfish Enters Into Non-Binding 20-year Gold Purchase Agreement with Mako Mining; Plans to Implement a Gold Price-Linked Dividend and Declare Special Dividend of US$1 per Share: Sailfish Royalty  (royalty on Gavilanes, Durango)
  • Pacifica Silver Announces AGM Results; Appoints New CFO and Director: Pacifica Silver (Claudia, Durango)
  • Fresnillo plc – Planned CFO Succession, Retirement of Mario Arreguín and Appointment of Rodrigo Sandoval as Successor: Fresnillo plc (La Herradura, Sonora)
  • Elemental Royalty Completes the Acquisition of Vizsla Royalties and its 2-3.5% NSR Royalties on the Panuco Project: Elemental Royalty (Panuco, Sinaloa)
  • Minaurum Announces Appointments of Operations Manager at the Alamos Silver Project and Senior Mine Engineer to the Advisory Board: Minaurum Silver (Alamos Silver, Sonora)
  • Orex Minerals Announces Adoption of Semi-Annual Reporting Framework: Orex Minerals (Sandra, Durango)
  • Zacatecas Silver Announces Investor Relations Engagement: Zacatecas Silver (Zacatecas, Silver, Zacatecas)
  • Xali Gold Provides Update on El Oro Projects in Mexico: Xali Gold (El Oro, Estado de México)
  • Luca Announces Agreement to Acquire El Barqueño from Agnico Eagle: Luca Mining (El Barqueño, Jalisco)
  • Change of Company Name to Antimony Resources Limited New ASX Code ANT: Antimony Resources (Los Lirios, Oaxaca)
  • Mercado Minerals Signs LOI to Acquire La Franca within the Zamora Project and Samples 1.00 Metre of 1.53 kg/t Silver and 1.39 g/t Gold: Mercado Minerals (Zamora, Sinaloa)
  • Silver Tiger Announces Results of Annual and Special Meeting: Silver Tiger (El Tigre, Sonora)

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: Shear zone on intrusive rocks in northern Sonora. Picture by Jorge Cirett

The Mining and Exploration News in Mexico: Highlights on the Second Week of September, 2026

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Brochantite

By Miguel A Heredia

During the 37th week of the year (September 07 to September 13, 2026), at least 32 press releases were issued by companies operating in Mexico, and 1 news published by the media. Of these, twelve related to deals and corporate matters, ten covered resource and development updates, seven presented exploration results, two announced financial activities, one addressed Mexican-related issues, and one reported social issues. ON MEXICO ISSUES, Two alleged members of Los Chapitos arrested for the kidnapping of 10 miners in Sinaloa. ON EXPLORATION, In Sonora, Riverside and its JV Partner Questcorp released assay results from the Phase 2A 2026 core drilling program at the Union project, Zacatecas Silver reported assay results from the second phase of rock chip sampling at its Oso Negro project, Algo Grande announced drill results from its Adelita project, and Tocvan confirmed gold mineralization along El Mezquite trend at its Gran Pilar project. In Nayarit, Miravalles Gold filed an independent technical report for its Fairfield project. In Durango, Pinnacle announced that its ongoing drilling program at El Potrero project has confirmed and extended the previously announced high-grade gold-silver mineralization at the historic Pinos Cuates mine.    ON MINING, No relevant news. ON FINANCING, DynaResource received USD $4M in IVA tax refund.  Goldgroup announced a non-brokered private placement for gross proceeds of up to USD $75M. ON RESOURCES AND DEVELOPMENT, Luca Mining released new assay results from its ongoing drill program at the Tahuehueto project, Durango. Zacatecas Silver announced drill assays from El Cristo drill program in Zacatecas. GR Silver reported that its ongoing 20,000m drill program at San Marcial project, Sinaloa continues to deliver significant drill intercepts confirming extension of mineralization beyond the current mineral resource estimate area. Goldgroup reported strong assay results of the six first drillholes from its ongoing 26,000m drill campaign at its San Francisco mine, Sonora. First Majestic announced positive results from its ongoing 2026 drilling program and expands exploration footprint at San Dimas project Durango. Defiance Silver provided the results on the drilling campaign on the San Acacio resource drilling program on the Zacatecas project. Oroco reported the fourth batch of assay results from its Phase 2 resource drilling program at its Santo Tomas project in Sinaloa. Sierra Madre announced that the twin diesel electric generators have been installed at La Guitarra mine in the State of Mexico. Silver Tiger reported exploration results for the 2026 summer program at its El Tigre project in Sonora. Goldgroup provided an overview of its Oaxaca mining operations and regional land package. ON DEALS AND CORPORATE ISSUES, Starlo Ventures entered into a binding letter of intent to acquire a 100% interest in and to the Margarita project, Chihuahua. Discovery Mining announced the appointment of William Shaver to the Board of Directors, as well as a number of senior appointments and executive promotions. Santacruz received conditional approval from the Toronto Stock Exchange to list its common shares. Americas Gold and Silver, Avino, and Discovery Mining announced that they have been named to the 2026 TSX30™, the Toronto Stock Exchange’s annual ranking of the 30 top-performing companies based on dividend-adjusted share price performance over a three-year period.  Elemental Royalty received approval from Mexico´s antitrust agency with respect to the acquisition of Vizsla Royalties. Guanajuato Silver appointed Colin Bower as Chief Operating Officer. Regency Silver agreed to acquire a 100% interest in the past producing Jabali Gold project, Sonora. GR Silver granted stock options to certain directors, officers, employees, and consultants. Apollo Silver announced a community assembly at which members of the Ejido are expected to vote on lifting the moratorium on mineral exploration and development affecting lands which include the Cinco de Mayo project, which is expected to be held on September 20, 2026. Mining Americas changed its auditor from McGovern Hurley LLP to Ernst & Young LLP. ON SOCIAL RESPONSIBILITY, Algo Grand received a BB rating in its first Digbee ESG assessment, covering both the Company and its 100%-owned Adelita Project in Sonora, Mexico.

ON MEXICO ISSUE

ON EXPLORATION  

  • Riverside Resources Intersects Near-Surface Gold and Base Metal Mineralization at Union Norte and Advances Multiple Targets for Phase 2B Drilling: Riverside Resources Inc
  • Questcorp Defines Near-Surface Gold Discovery Corridor at Union Norte Expanding District-Scale Potential at La Union: Questcorp Mining Inc
  • Zacatecas Silver Expands Oso Negro to Over 3 Kilometres of Mapped Gold-Silver Veins; Phase Two Rock Chip Sampling Returns up to 20.3 g/t Gold and 3,480 g/t Silver: Zacatecas Silver Corp
  • Algo Grande Copper Intersects 30.23 Metres Grading 1.5% CuEq, including 3.55 Metres at 9.4% CuEq and 1.2-Metre Interval at 15.8% CuEq, 100 metres vertical step-out from historical intersects: Algo Grande Copper Corp
  • Tocvan Confirms Gold Mineralization Along Entire 1,300-Metre El Mezquite Trend at Gran Pilar: Tocvan Ventures Corp
  • Miravalles Gold Corp Files NI 43-101 Technical Report for Fairfield Gold Project, Nayarit, Mexico: Miravalles Gold Corp
  • Pinnacle Confirms High-Grade Mineralization in Underground Drilling at El Potrero with up to 58.2 g/t Au and 631 g/t Ag: Pinnacle Silver and Gold Corp

ON MINING

  • No relevant news

ON FINANCING

  • DynaResource Receives US$4.0 Million in IVA Tax Refund: DynaResource Inc
  • Goldgroup Announces US$75 Million Private Placement with US$60 Million already Committed by Leading Natural Resource Investors: Goldgroup Mining Inc

ON RESOURCES AND DEVELOPMENT

  • Luca Intersects 9.9 Metres of 5.39 g/t Gold Equivalent from the Catorce Zone at Tahuehueto Mine: Luca Mining Corp
  • Zacatecas Silver Announces Multiple Silver Assays from El Cristo Drill Program: Zacatecas Silver Corp
  • GR Silver Confirms Extension of Mineralization at San Marcial, Including 16.1 m at 162 g/t Ag and11.7 m at 147 g/t Ag in the SE Area: GR Silver Mining Ltd
  • Goldgroup Reports Strong First Results from 26,000 Metre San Francisco Drill Program: Goldgroup Mining Inc
  • First Majestic Reports High-Grade Drill Results and Expands Exploration Footprint at San Dimas: First Majestic Silver Corp
  • Defiance Silver San Acacio Drilling Returns High Grade Silver; Additional Holes Pending from Lucita Drilling: Defiance Silver Corp
  • Oroco Continues South Zone Success: Oroco Resource Corp
  • Sierra Madre Onsite Power Generation Fully Functional at La Guitarra: Sierra Madre Gold and Silver Ltd
  • Silver Tiger Intersects 2.1 Metres of 7.72 Kilograms Per Tonne Silver Equivalent in the Caleigh Vein Including 0.53Metres of 29.62 Kilograms: Silver Tiger Metals Inc
  • Goldgroup Highlights its Two Producing Mines and Significant Growth Potential Across the Don David Gold Complex in Mexico: Goldgroup Mining Inc

ON DEALS AND CORPORATE ISSUES

ON SOCIAL RESPONSIBILITY

  • Algo Grande Copper Achieves BB Rating in First Digbee ESG Assessment at the Adelita Project: Algo Grande Copper Corp

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, brochantite in a Cu-Au project in Sonora Mexico. Photo taken by Miguel A Heredia.