NI 43-101

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.

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

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By Jorge Cirett

During the 36th week of the year (August 31st to September 6th, 2026), 20 companies working in Mexico released press releases. One company reported activities on an early-stage property. There was no news related to mining. Three companies informed on financing rounds for C$ 31.4 M and one other granted stock options. Six companies presented news on resources and development. Eight companies presented news on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Sinaloa, Mercado Minerals presented results from surface sampling at the Zamora project. ON MINING, Goldgroup Mining present Q2 2026 financing results. ON FINANCING. Silverco Mining granted stock options. Silver Storm Mining and Algo Grande Copper closed private placements for C$21 M and C$4.8 M respectively. Aztec Minerals upsized its private placement from C$5 M to C$5.6 M. Sailfish Royalty declared a dividend. ON RESOURCES AND DEVELOPMENT, Silver Hammer and Stroud Resources updated its mineral resource estimate for the Santo Domingo project in Jalisco. Southern Silver Exploration reported underground sampling results at Cerro Las Minitas in Durango. Barksdale Resources advances work on gold at its San Javier property in Sonora. Sonoro Gold released drilling results from Cerro Caliche, in Sonora. Mining Americas received key permits for its Cerro de Oro project in Zacatecas. Goldgroup Mining highlighted the exploration potential at Don David, in Oaxaca. ON DEALS AND CORPORATE ISSUES, Alamos Gold, Apollo Silver, Sonoro Gold announced changes/appointments to the board. Colibri Resource and Tocvan Ventures presented corporate updates. Teck Resources informed on its merger with Anglo American. Goldgroup Mining provided an update on its merger with Gold Resource.  ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • Mercado Minerals Announces Initial Surface Results from the Zamora Project, Highlights 1.00 Metre of 828 g/t Silver at the Campanillas Vein: Mercado Minerals (Zamora, Sinaloa)

ON MINING

  • Goldgroup Files Second Quarter 2026 Financial Results and Provides Update on Combined Company: Goldgroup Mining (San Francisco, Sonora)

ON FINANCING AND SHARES

  • Silverco Mining Grants Incentive Stock Options and Restricted Share Units: Silverco Mining (La Parrilla, Durango)
  • Silver Storm Closes Second and Final Tranche of Non-Brokered Private Placement for Aggregate Gross Proceeds of $21.0 Million: Silver Storm Mining (La Parrilla, Durango)
  • Algo Grande Copper Closes Oversubscribed Private Placement for $4.786 Million: Algo Grande Copper (Adelita, Sonora)
  • Sailfish Royalty Declares Q3 2026 Dividend: Sailfish Royalty (royalty on Gavilanes, Durango)
  • Aztec Minerals Announces $5 Milli: on Bought Deal Private Placement of Units: Aztec Minerals (Cervantes, Sonora)
  • Aztec Minerals Announces Upsize of Bought Deal Private Placement to $5.6 Million: Aztec Minerals (Cervantes, Sonora)

ON RESOURCES AND DEVELOPMENT

  • Silver Hammer and Stroud Resources Announce Updated Mineral Resource Estimate for the Santo Domingo Silver-Gold Project, Mexico: Silver Hammer  (Santo Domingo, Jalisco)
  • Southern Silver Reports 2.8m of 665g/t AgEq and 4.0m of 367g/t AgEq from Underground Channel Sampling at the Puro Corazon Mine: Southern Silver Exploration (Cerro Las Minitas, Durango)
  • Barksdale Completes Phase II Earn-In to Reach 67.5%Ownership of Sunnyside; Advances San Javier Gold Work: Barksdale Resources (San Javier, Sonora)
  • Sonoro Gold Announces Initial 10,000 Meters Drilling Results from Ongoing Campaign at Cerro Caliche: Sonoro Gold (Cerro Caliche, Sonora)
  • Mining Americas Announces Key Permit Approvals for Development of the Cerro de Oro Project in Northern Zacatecas, Mexico: Mining Americas (Cerro de Oro, Zacatecas)
  • Goldgroup Highlights Exploration Potential at Don David: Goldgroup Mining (Don David, Oaxaca)

ON DEALS AND CORPORATE ISSUES

  • Alamos Gold Announces Change to its Board of Directors: Alamos Gold  (Mulatos, Sonora)
  • Colibri Resource Corporation Announces Grant of Stock Options and Corporate Update: Colibri Resource (EP, Sonora)
  • Teck Provides Information Related to the Anglo Special Dividend and the Merger: Teck Resources (San Nicolás, Zacatecas)
  • Apollo Silver Announces Chief Financial Officer Transition: Apollo Silver (Cinco de Mayo, Chihuahua)
  • Tocvan Provide Corporate Update: Tocvan Ventures (Gran Pilar, Sonora)
  • Sonoro Gold Announces Management Appointments: Sonoro Gold (Cerro Caliche, Sonora)
  • Goldgroup Files Second Quarter 2026 Financial Results and Provides Update on Combined Company: Goldgroup Mining (San Francisco, Sonora)

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: stepladder dikelet in northern Sonora. Picture by Jorge Cirett

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

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By Jorge Cirett

During the 34th week of the year (August 17th to August 23rd, 2026), 24 companies working in Mexico posted press releases. Four companies reported activities on early-stage properties. Six companies presented quarterly reports while one more informed on an illegal blockade. One company announced a financing round. One company filed a technical report, two more companies presented drilling results on advanced properties and one more announced a board appointment. Six companies presented news on deals and corporate issues. ON MEXICO ISSUES, Mexico has lost four years on the development of its lithium industry. ON EXPLORATION, In Sinaloa, Mercado Minerals completed its maiden drill program at Copalito. In Durango, Pinnacle Silver and Gold reported underground drilling results at Potrero; Pacifica Silver obtained a drilling permit for its Claudia project. In Oaxaca, EV Resources further defines antimony bearing veins. ON MINING, Starcore International Mines, Luca Mining, Santacruz Silver, Mining Americas, Impact Silver and Dyna Resource presented quarterly reports. Endeavour Silver informed on an illegal blockade to its Terronera mine in Jalisco. ON FINANCING. Silver Storm Mining announced a C$7.5 M private placement. ON RESOURCES AND DEVELOPMENT, Mithril Silver and Gold filed a technical report on Copalquín, in Durango. Goldgroup Mining released results from drilling at its Don David mine in Oaxaca. Oroco Resource presented its case for an improving permitting process in Mexico. Kingsmen Resources presented drilling results for Las Coloradas, in Chihuahua. ON DEALS AND CORPORATE ISSUES, GR Silver adopted an advance notice policy. Madoro Metals updated on its reverse takeover transaction. Royalties Inc. demanded production evidence from the Cozamín mine in Zacatecas. Vortex Metals made two appointments and informed on a services agreement. Silver Dollar announced AGM results. Newmont announced an appointment to the board.  ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • Mexico has lost four years to develop it lithium industry, according to specialists. Lithium -El Imparcial

ON EXPLORATION

  • Pinnacle Provides First Results from Underground Drilling Program at El Potrero; Samples up to 59.2 g/t Au and 424 g/t Ag with Visible Gold: Pinnacle Silver and Gold   (El Potrero, Durango)
  • Mercado Minerals Provides Summary of Copalito Drill Program, Highlights New Renata Vein and Phase II Exploration Plans: Mercado Minerals (Copalito, Sinaloa)
  • Pacifica Silver Secures 491 New Drill Pad Sites and Expands 2026 Drill Program to 30,000 Metres: Pacifica Silver (Claudia, Durango)
  • EV Resources, Four New Antimony Feeder Vein Systems Confirmed at Los Lirios – Resource Expansion Potential: EV Resources (Los Lirios, Oaxaca)

ON MINING

  • Endeavour Silver Reports an Illegal Blockade and Suspension of Operations at its Terronera Mine: Endeavour Silver  (Terronera, Jalisco)
  • Starcore Reports First Quarter Production Results: Starcore International Mines (San Martín, Querétaro)
  • Luca Mining Corp. reports $10.5 Million of Net Earnings in Q2: Luca Mining (Campo Morado, Guerrero)
  • Santacruz Silver Reports Second Quarter 2026 Financial Results: Santacruz Silver (Zimapán, Hidalgo)
  • Mining Americas Reports Q2 2026 Financial and Operating Results: Mining Americas (Santana, Sonora)
  • IMPACT Silver Reports Q2 2026 Results: Revenue Increased by 124%, Gross Profit up 756%on Silver Leverage, Higher Grades: Impact Silver (Plomosas, Chihuahua)
  • Endeavour Silver Provides Update on Blockade at its Terronera Mine: Endeavour Silver (Terronera, Jalisco)
  • DynaResource Reports Q2 2026 Results at the San José de Gracia Mine: DynaResource (San José de Gracia, Sinaloa)
  • Endeavour Silver Announces Removal of Blockade at its Terronera Mine:   Endeavour Silver (Terronera, Jalisco   

ON FINANCING

  • Silver Storm Announces $7.5 Million Non-Brokered Private Placement with Eric Sprott: Silver Storm Mining   (La Parrilla, Durango)

ON RESOURCES AND DEVELOPMENT

  • Mithril Silver & Gold Announces Filing of Technical Report: Mithril Silver and Gold  (Copalquín, Durango)
  • Permitting Progress in Mexico: What It Means for Santo Tomás: Oroco Resource (Santo Tomás, Sinaloa)
  • Goldgroup Reports Selected Drill Results Highlighting Growth Potential at Don David: Goldgroup Mining (Don David, Oaxaca)
  • Kingsmen Drills 1.40 Metres of 433 g/t AgEq (239 g/t Ag) at Las Coloradas, Expanding a High-Grade Silver Zone Open at Depth and Along Strike: Kingsmen Resources (Las Coloradas, Chihuahua)

ON DEALS AND CORPORATE ISSUES

  • GR Silver Adopts an Advance Notice Policy: GR Silver  (Plomosas, Sinaloa)
  • Madoro Metals, Update on Reverse Takeover Transaction: Madoro Metals (Cerro Minas, Oaxaca)
  • Royalties Inc. Escalates Criminal Investigation by Formally Demanding Production Evidence at the Cozamin Mine: Royalties Inc. (Cozamin, Zacatecas)
  • Vortex Metals Engages Global Frontier Advisors and Appoints Ambassador Roberta Jacobson and Ambassador James Story to Advisory Board: Vortex Metals (Riqueza Marina, Oaxaca)
  • Silver Dollar Resources Announces AGM Results and Provides Operational Update: Silver Dollar Resources (La Joya, Durango)
  • Newmont Appoints Peter Beaven to Board of Directors: Newmont Corp. (Peñasquito, Zacatecas)

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: Deformed dikelet in northern Sonora. Picture by Jorge Cirett

The Mining and Exploration News in Mexico; Highlights on the First Week of August 2026

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By Jorge Cirett

During the 32nd week of the year (August 3rd to August 9th, 2026), 27 companies working in Mexico posted press releases. Three companies presented activities on early-stage work properties. Five companies presented quarterly reports, one began underground mining development, and one more obtained a substantial drilling permit. Six companies announced financings or share related events. One company presented a PEA, two more companies presented drilling results and one more reported exploration activities, all on advanced properties. Five companies presented news on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Sonora, Tocvan Ventures presented drilling results from Gran Pilar; Defiance Silver received the drilling permit for El Espíritu. In Durango, Pinnacle Silver and Gold reported underground sampling results. ON MINING, Elemental Royalty, Equinox Gold, Gold Royalty, Coeur Mining, Heliostar Metals, Torex Gold informed on quarterly reports. Silverco Mining began underground development at Cusi, in Chihuahua. Guanajuato Silver Company received the drilling permit for El Horcón, in Guanajuato. ON FINANCING. Teck announced the commencement of consent solicitation. Chesapeake Gold announced stock option grant. Aura Mining and Equinox Gold informed on dividends. Endeavour Silver announced a revolving credit facility. Santacruz Silver Mining announced equity incentive grants. ON RESOURCES AND DEVELOPMENT, Kootenay Silver filed a PEA on La Cigarra, Chihuahua. Silver Storm Mining reported results from drilling at La Parrilla, in Durango. Luca mining released drilling results from its Campo Morado mine in Guerrero. Oroco Resource informed on exploration work at Santo Tomás, in Sinaloa. ON DEALS AND CORPORATE ISSUES, Vizsla Silver announced an appointment. Empress Royalty acquired a royalty portfolio. Almadex Minerals completed the sale of a royalty interest. Silver Hammer is acquiring Stroud Resources and Silvermark Resources. Dyna Resource announced a favorable ruling.  ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • No Relevant News

ON EXPLORATION

  • Pinnacle Reopens Additional Historic Mine Workings at El Potrero and Samples up to 26.1 g/t Au and 511 g/t Ag: Pinnacle Silver and Gold   (El Potrero, Durango)
  • Defiance Silver Receives Approval for up to 172 Drill Sites at Espiritu Copper Target, Sonora: Defiance Silver (Espíritu, Sonora)
  • Tocvan Drills Significant Discovery on Mezquite Trend Gran Pilar 215M of 0.6 g/t Au, from 36.6 mDownhole: Tocvan Ventures (Gran Pilar, Sonora)

ON MINING

  • Silverco Mining Begins Underground Development at Cusi, Restart Remains on Budget and on Schedule: Silverco Mining  (Cusi, Chihuahua)
  • Guanajuato Silver Receives Drilling Permits for El Horcon Project: Guanajuato Silver Company (El Horcón, Guanajuato)
  • Elemental Royalty to Release Q2 2026 Results on August 11, 2026: Elemental Royalty (royalty on Mercedes, Sonora)
  • Equinox Gold Delivers Strong Second Quarter Results; Increases 2026 Production Guidance Following Successful Completion of the Orla Mining Merger; Quarterly Dividend Increased by 50%: Equinox Gold (Los Filos, Guerrero)
  • Gold Royalty Reports Record Six-Month Results with Continued Strong Cash Flow and Earnings Growth: Gold Royalty (Cozamin, Zacatecas)
  • Coeur Reports Second Quarter 2026 Results: Coeur Mining (Palmarejo, Chihuahua)
  • Heliostar Presents Q2 2026 Financial and Operating Results with Record Gold Production and Cash Balance: Heliostar Mining (Ana Paula, Guerrero)
  • Torex Gold Reports Q2 2026 Results: Torex Gold (Morelos Complex, Guerrero)

ON FINANCING

  • Teck Announces Commencement of Consent Solicitation: Teck Resources  (San Nicolás, Zacatecas)
  • Chesapeake Gold Announces Stock Option Grant: Chesapeake Gold (Metates, Durango)
  • Aura Declares Dividend of US$0.72 Per Share and US$0.24 Per BDR Based on Q2 2026 Results, Resulting in a Dividend Yield of 4.3% in the LTM: Aura Mining (Aranzazu, Zacatecas)
  • Equinox Gold Increases Cash Dividend by 50%; Declares Quarterly Cash Dividend of US$0.0225 per Common Share: Equinox Gold (Los Filos, Guerrero)
  • Endeavour Silver Announces US$25 Million Revolving Term Credit Facility: Endeavour Silver  (Terronera, Jalisco)
  • Santacruz Silver Announces Equity Incentive Grants: Santacruz Silver Mining (Zimapán, Hidalgo)

ON RESOURCES AND DEVELOPMENT

  • Oroco Reports Select Surface Sample of 7.57% Copper and Completion of Drone Magnetic Survey at Vainilla: Oroco Resource (Santo Tomás, Sinaloa)
  • Luca Intersects 184 Metres of 1.2 g/t Gold, 72 g/t Silver, 0.4% Copper, 0.5% Lead, and 1.7% Zinc at the Largo Norte Zone, Campo Morado: Luca Mining (Campo Morado, Guerrero)
  • Silver Storm Drills 215 g/t Ag.Eq(1,2) over 11.9 m and 200 g/t Ag.Eq over 15.4 m at the Rosarios Zone: Silver Storm Mining (La Parrilla, Durango)
  • Kootenay Silver Files NI 43-101 Technical Report Supporting Positive PEA for the La Cigarra Silver Project: Kootenay Silver (La Cigarra, Chihuahua)  

ON DEALS AND CORPORATE ISSUES

  • Vizsla Silver Appoints Luis Lázaro as President, México: Vizsla Silver (Panuco, Sinaloa)
  • Almadex Announces Completion of Sale of Royalty Interests: Almadex Minerals (Ixtaca, Puebla)
  • Empress Announces Closing of Acquisition of North American Royalty Portfolio: Empress Royalty (Tahuehueto, Durango)
  • Silver Hammer Announces Acquisitions of Stroud Resources and Silvermark Resources and Brokered Financing, Eric Sprott to Become Cornerstone Shareholder: Silver Hammer (Santo Domingo, Jalisco)
  • Dyna Resource Announces Favorable Ruling in Amparo Proceedings: Dyna Resource (San José de Gracia, Sinaloa)

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: Complex Quartz/Oxidized-sulfide epithermal vein. Picture by Jorge Cirett

The Mining and Exploration News in Mexico; Highlights on the Fourth Week of May 2026

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By Jorge Cirett

During the 22nd week of the year (May 25th to May 31st, 2026), companies working in Mexico released 21 press releases. One company informed on early-stage property work while six companies presented quarterly reports. One company closed a credit facility, one other secured a working capital facility with the Mexican government, two companies increased their financing rounds, another company declared a dividend, while one more granted stock options. Two companies released drill results on their advanced projects. Two companies announced results of their AGM’s, one changed auditor, another one settled on gold delivery obligations and one other is to report semi-annually. ON MEXICO ISSUES, some paperwork for the mining industry has been simplified. EXPLORATION, in Querétaro, Starcore International Mines reached a community agreement at La Tortilla.  ON MINING, Orogen Royalty, Guanajuato Silver Company, Empress Royalty, Minera Alamos, Sailfish Royalty and Silverco Mining reported quarterly results. ON FINANCING. Minera Alamos closed a US$75 M revolving credit facility and granted stock options. Vizsla Silver secured a working capital agreement with the government for the Pánuco project in Sinaloa. Southern Empire Resources and Sonoro Gold increased their private placements to C$1.75 M and C$15 M respectively, Alamos Gold declared a quarterly dividend, Sonoro Gold.  ON RESOURCES AND DEVELOPMENT, Axo Metals released drilling results from the San Antonio project in Sonora. Minaurum Silver presented results from expansion drilling at the Alamos Silver project in Sonora. ON DEALS AND CORPORATE ISSUES, Americas Gold and Silver settled an agreement on a fixed gold delivery obligation. Sonoro Gold changed auditor. Alamos Gold and Elemental Royalty announced results from their respective AGM’s. Silver Viper adopted semi-annual reporting ON SOCIAL RESPONSIBILITY, Torex Gold released its “2025 Responsible  Gold Mining Report” (Morelos Complex, Guerrero). Pan American Silver released its “2025 Sutainability Report” (La Colorada, Zacatecas).

ON MEXICO ISSUES

  • Elimina Federación un trámite y simplifica 42 para inversiones mineras: News on Mexico

ON EXPLORATION

ON MINING

  • Orogen Reports Strong Q1 2026 Results with 144% Growth in Net Income: Orogen Royalties  (Ermitaño, Sonora)
  • Empress Reports 2026 First Quarter Financial Results: Empress Royalty (Tahuehueto, Durango)
  • Guanajuato Silver Delivers Record Revenue and Record Net Income in Q1, 2026: Guanajuato Silver Company (El Cubo, Guanajuato)
  • Minera Alamos Reports First Quarter 2026 Results, Setting Quarterly Records for Revenue of US$39.2 Million, Earnings of US$10.9 Million, and EBITDA of US$15.3 Million: Minera Alamos (Cerro de Oro, Zacatecas)
  • Sailfish Reports Q1 2026 Results: Sailfish Royalty (Royalty on Gavilanes, Durango)  
  • Silverco Mining Announces Filing of Q1 2026 Interim Financial Statements and MD&A: Silverco Mining (La Negra, Querétaro)  

ON FINANCING

  • Minera Alamos Closes US$75 Million Revolving Credit Facility with Scotiabank and National Bank, Strengthening Balance Sheet for Organic Growth Profile: Minera Alamos  (Santana, Sonora)
  • Vizsla Silver Secures Working Capital Facility with Mexican Government Financial Institution for Panuco Vizsla Silver (Pánuco, Sinaloa)
  • Southern Empire Increases Private Placement to $1,750,000 CAD Southern Empire Resources (Pedro, Durango)
  • Alamos Gold Declares Quarterly Dividend and Announces Share Repurchases Under Normal Course Issuer Bid: Alamos Gold (Mulatos, Sonora)
  • Sonoro Gold Announces Increase in Private Placement to $15 Million Sonoro Gold (Cerro Caliche, Sonora)
  • Minera Alamos Announces Granting of Stock Options: Minera Alamos (Cerro de Oro, Zacatecas)

ON RESOURCES AND DEVELOPMENT

  • Axo Metals Intercepts 23.6 Metres of 2.13 g/t from Surface at the San Antonio Project: Axo Metals  (San Antonio, Sonora)
  • Minaurum Drills High-Grade Silver on the Europa Sur Vein Zone at the Alamos Silver Project: 3.20 m of 882 g/t AgEq and 6.20 m of 374 g/t AgEq Minaurum Silver  (Alamos Silver, Sonora)

ON DEALS AND CORPORATE ISSUES

  • Americas Gold and Silver Announces Agreement with Affiliate of Royal Gold to Settle Fixed Gold Delivery Obligation: Americas Gold and Silver  (Cosalá, Sinaloa)
  • Sonoro Gold Announces Change of Auditor Sonoro Gold (Cerro Caliche, Sonora)
  • Alamos Gold Announces Results of the Annual General Meeting of Shareholders: Alamos Gold (Mulatos, Sonora)
  • Elemental Announces Voting Results from its 2026 Annual General and Special Meeting Elemental Royalty (Royalty on Mercedes, Sonora)
  • Silver Viper Announces Adoption of Semi-Annual Reporting Framework: Silver Viper (La Virginia, Sonora)

ON SOCIAL RESPONSIBILITY

  • Torex Gold Releases 2025 Responsible Gold Mining Report Torex Gold (Morelos Complex, Guerrero)
  • Pan American Silver Releases 2025 Sustainability Report: Pan American Silver (La Colorada, Zacatecas)

On the image below: Epithermal quartz veining and pyrite in volcanosedimentary rocks, HQ core. Picture by Jorge Cirett.

The Mining and Exploration News in Mexico: Highlights on the Third Week of May, 2026

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Quartz Vein Displaying Boiling Texture

By Miguel A Heredia

During the 21st week of the year (May 18 to May 24, 2026), at least 31 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, five addressed Mexican-related issues, four covered resource and development updates, three reported production results, three presented exploration results, three announced financing activities, and two discussing social issues.  ON MEXICO ISSUES, Almaden provided an update to the international arbitration proceedings under the Comprehensive and Progressive Agreement for Trans-Pacific Partnership with the United Mexican States. The Federal Mexican Government, through the Secretariat of Economy eliminates one procedure and simplifies 42 for mining investment. Sierra Madre received approval from the the Comisión Federal de Competencia Económica (COFECE) for the acquisition of the Del Toro Silver mine in Zacatecas. Mexican courts ruled that Capstone Copper owes unpaid royalties to Minera Portree de Zacatecas, S.A. de C.V (Royalties Inc) since 2019 on the Cozamin Mine, Zacatecas. Oroco and GR Silver reported the best drilling intercepts in Mexico on the third week of May, 2026. ON EXPLORATION, In Sonora, Masivo Silver informed that it completed its Phase 1 drill program at Cerro Colorado project, which consisted of seven holes totaling 1,601m, and JV Questcorp-Riverside reported that they have completed an expanded  aeromagnetic drone survey at the La Union project. ON MINING, IMPACT Silver and Sierra Madre reported Q1, 2026 operational and financial results. Starcore reported production and financial results for the four fiscal quarter ended April 2026. ON FINANCING, Vortex notified further extension of its previously announced non-brokered private placement. Sonoro Gold announced a non-brokered private placement for gross proceeds of CAD $10M. Kootenay informed that it intends to complete a non-brokered private placement for gross proceeds of up to CAD $500K. ON RESOURCES AND DEVELOPMENT, GR Silver released the best ever drill results at its San Marcial project in Sinaloa in hole SMS26-04, which intersected 45.1 m of 1,623 g/t Ag, Including 8.25 m of 8,579 g/t Ag,. Oroco reported drill results from its Santo Tomas project in Sinaloa. Silverco filed a NI 43-101 Technical Report for its Cusi mine, Chihuahua. Silver Storm released drill results from the C550 and C535 Zones within its Parrilla mine complex in Durango, and expands its 2026 drilling campaign by 9,000m.  ON DEALS AND CORPORATE ISSUES, Alamos Gold announced multiple management appointments, further strengthening its senior leadership team. Torex Gold announced the appointment of Dan Rollins as Chief Financial Officer. Minera Alamos has provided its notice of intent to exercise its option to repurchase a portion of the net smelter return royalty equal to 0.75% on the Cerro de Oro project located in northern Zacatecas. Vizsla appointed Dave D ´Antonio as Senior Vice President of Technical Services. Silver Spruce granted stock options to certain directors, officers, employees and consultants. Silverco completed its previously announced acquisition of Nuevo Silver Inc. Silver Tiger announced that the Toronto Stock Exchange has approved the listing of the Company’s common shares for trading on the TSX. Vizsla Silver appointed Guillermo Hernandez as Vice President Exploration and promotes Jesus Velador as Chief Geologist. GR Silver announced a celebration of Life for founder Márcio Fonseca. Silver Wolf announced adoption to semi-annual financial reporting. Americas Gold and Silver reached an agreement with Sprott Mining to terminate the remaining obligation under the existing Silver Delivering Agreement in exchange for shares of the company. GR Silver provided a corporate update following the exceptional drill results at San marcial within its Plomosas project, Sinaloa.  ON SOCIAL RESPONSIBILITY, Aura Minerals announced its 2025 Sustainability Report promoting safety, responsibility, sustainability, and innovation, prepared in with reference to Global Reporting Initiative standards. Heliostar published its inaugural Sustainability Report covering the 2025 fiscal year.

ON MEXICO ISSUES

  • Almaden Provides Update on Arbitration Process with Mexico Increased Damages Award Presented: Almaden Minerals Ltd
  • Federal Government Eliminates One Procedure and Simplifies 42 for Mining Investments:   Chihuahua al Día – Noticias
  • Mexican Courts Rule That Capstone Copper Owes Unpaid Royalties Since 2019 on the Cozamin Mine-Pending Amparo: Royalties Inc
  • Sierra Madre Receives Mexican Antitrust Approval for the Acquisition of the Del Toro Mine: Sierra Madre Gold and Silver Ltd
  • Oroco Resource Corp., and GR Silver Mining Ltd reported the best drilling intercepts in Mexico on the third week of May, 2026. Details are shown in the table below:

ON EXPLORATION  

ON MINING

ON FINANCING

ON RESOURCES AND DEVELOPMENT

  • GR Silver Reports Its Best Ever Drill Results at San Marcial: 45.1 m at 1,623 g/t Ag, Including 8.25 m at 8,579 g/t Ag, in Hole SMS26-04: GR Silver Mining Ltd
  • Oroco Intersects 228 m of 0.49% CuEq and 212 m of 0.44% CuEq at Santo Tomás: Oroco Resource Corp
  • Silverco Mining Files NI 43-101 Technical Report for the Cusi Project PEA: Silverco Mining Ltd
  • Silver Storm Demonstrates Resource Growth Potential at the C550 Zone, Expands the 2026 drilling campaign by 9,000m: Silver Storm Mining Ltd

ON DEALS AND CORPORATE ISSUES

ON SOCIAL RESPONSIBILITY

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, a quartz vein displaying boiling texture in a project in Sonora, Mexico.  Photo taken by Miguel A Heredia.

The Mining and Exploration News in Mexico; Highlights on the Second Week of May 2026

/ Gambusino Prospector / Leave a comment

By Jorge Cirett

During the 20th week of the year (May 11th to May 17th, 2026), companies working in Mexico released 39 press releases. Two companies informed on early-stage property work and ten companies presented quarterly reports. Two companies adopted semi-annual reporting, one company declared a dividend, one more repaid a loan, and one other closed a private placement while one more granted stock options. Three companies released drill results on their advanced projects, and one more updated the technical report on a property. Five companies announced appointments and officers changes, one company is acquiring more ground, two mid-tier companies announced their merger, one company reported its AGM results, and the acquisition of a royalty company was announced. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, in Sonora, Tocvan Ventures reported continued drilling and exploration at Gran Pilar. In Chihuahua, Kingsmen Resources completed topographic surveys at Las Coloradas and Almoloya.  ON MINING, Orla Mining, First Majestic, Altius Minerals, Heliostar Metals, Osisko Development, Elemental Royalty, Discovery Silver, Americas Gold and Silver, Avino Silver & Gold Mines, Santacruz Silver and Golden Minerals reported quarterly results. ON FINANCING Silver Viper and Regency Silver adopted semi-annual reporting. Coeur Mining reported a dividend. Heliostar Metals granted stock options. Guanajuato Silver repaid a gold loan. J2 Metals closed the second tranche of a private placement for C$356 K in gross proceeds.  ON RESOURCES AND DEVELOPMENT, Goldgroup updated the technical report on the San Francisco mine in Sonora. Capitan Silver released results from drilling at Cruz de Plata in Durango. Defiance Silver announced drilling results from its Zacatecas project in Zacatecas. Mithril Silver and Gold provided assay results from drilling at the Target 1 of its Copalquin project in Durango. ON DEALS AND CORPORATE ISSUES, Oroco Resource, Minera Alamos, Vizsla Silver, Regency Silver and Goldgroup announced appointments to the board. Sonoro Gold signed a LOI on the acquisition of adjacent ground at Cerro Caliche, in Sonora. Equinox Gold and Orla Mining announced their merger. Altius Minerals presented results of its AGM. Elemental Royalty is to acquire Vizsla Royalties. Minera Alamos is to change name to Mining Americas. ON SOCIAL RESPONSIBILITY, No relevant news.

ON MEXICO ISSUES

  • No relevant news

ON EXPLORATION

  • Tocvan Accelerates Gran Pilar: 5,000+ Meters Drilled to Date, Historic Workings Discovered on South Block, Pilot Progresses: Tocvan Ventures  (Gran Pilar, Sonora)
  • Kingsmen Completes 60 km² Precision Satellite Topographic Surveys at Las Coloradas and Almoloya, Advancing Drill Targeting Across the High-Grade Parral Silver-Gold District, Chihuahua, Mexico: Kingsmen Resources (Las Coloradas, Chihuahua)
  • Tocvan Announces New surface Gold-Silver Results, Outlining New Target 3 Kilometers East of Main Zone at Gran Pilar Gold-Silver Project: Tocvan Ventures (Gran Pilar, Sonora)

ON MINING

  • Orla Mining Reports First Quarter 2026 Financial Results: Orla Mining (Camino Rojo, Zacatecas)
  • First Majestic Announces Q1 2026 Financial Results and Increased Quarterly Dividend Payment; Provides Management Updates: First Majestic Silver (San Dimas, Sinaloa)  
  • Altius Reports Q1 2026 Attributable Royalty Revenue of $26.8M and Adjusted Earnings(1) of $5.4M: Altius Minerals (royalty on Cuale, Jalisco)
  • Heliostar Presents Record Q1 2026 Financial and Operating Results: Heliostar Metals (Ana Paula, Guerrero)
  • Osisko Development Reports First Quarter 2026 Results: Osisko Development (sold San Antonio, Sonora)
  • Elemental Royalty Announces Record Quarterly Revenue and Adjusted EBITDA Elemental Royalty (royalty on Mercedes, Sonora)
  • Discovery Silver Reports Solid Earnings and Cash Flow in Q1 2026: Discovery Silver (Cordero, Chihuahua)
  • Americas Gold and Silver Reports Record Production and Sales in Q1 2026 as Execution on the Growth Plan Continues at Galena:  Americas Gold and Silver (Cosalá, Sinaloa)
  • Avino Delivers Record Q1 2026 Financial Results: Avino Silver & Gold Mines (Avino, Durango)
  • Santacruz Silver Reports First Quarter 2026 Financial Results: Santacruz Silver (Zimapán, Hidalgo)
  • Golden Minerals Reports First Quarter 2026 Financial Results: Golden Minerals (sold Velardeña, Durango)

ON FINANCING

  • Silver Viper Announces Adoption of Semi-Annual Reporting: Silver Viper Minerals   (Cerro Caliche, Sonora)
  • Heliostar Grants Options and RSUs under its Omnibus Equity Incentive Compensation Plan: Heliostar Metals (Ana Paula, Guerrero)
  • Coeur Declares Inaugural Dividend: Coeur Mining (Palmarejo, Chihuahua)
  • Guanajuato Silver Accelerates Gold Loan Repayment: Guanajuato Silver (El Cubo, Guanajuato)
  • J2 Metals Inc. Announces Closing of Flow-Through Private Placement: J2 Metals (Sierra Plata, Estado de México)
  • Regency Silver Adopts Semi-Annual Reporting and Stock Option Grants: Regency Silver (Dios Padre, Sonora)

ON RESOURCES AND DEVELOPMENT

  • Goldgroup Files Updated Technical Report on San Francisco Gold Project: Gold Group Mining (San Francisco, Sonora)
  • Capitan Silver Intersects 935 g/t Silver Equivalent over 1.3 Metres, Within a Wider Zone of 157 g/t Silver Equivalent over 20.0 Metres at the Cruz De Plata Project: Capitan Mining (Cruz de Plata, Durango)
  • Defiance Silver Drilling Returns up to 356 g/t Ag and 2.15 g/t Au in Additional Silver and Gold Structures: Defiance Silver (Zacatecas Project, Zacatecas)
  • Mithril Drills 7.00 g/t Gold, 370 g/t Silver Over 9.65 m Including 30.7 g/t Gold, 1,780 g/t Silver Over 0.5 m at Target 1, Copalquin: Mithril Silver and Gold (Copalquín, Durango)

ON DEALS AND CORPORATE ISSUES

  • Oroco Resource Corp. Appoints New CEO: Oroco Resource (Santo Tomás, Sinaloa)
  • Minera Alamos Strengthens Board and Management Team and Proposes Name Change to Mining Americas Inc.: Minera Alamos (Santana, Sonora)
  • Sonoro Gold Announces Letters of Intent to Acquire Adjacent Mineral Concessions to Further Expand the Cerro Caliche Gold Project: Sonoro Gold  (Cerro Caliche, Sonora)
  • Vizsla Silver Announces Change of Corporate Secretary: Vizsla Silver (Panuco, Sinaloa)
  • Equinox Gold and Orla Mining Combine to Create North America’s New Senior Gold Producer: Built to Grow, Built to Last: Orla Mining (Camino Rojo)
  • Equinox Gold and Orla Mining Combine to Create North America’s New Senior Gold Producer: Built to Grow, Built to Last: Equinox Gold (Los Filos, Guerrero)
  • Altius Reports Voting Results From its May 13, 2026 Annual and Special Meeting:  Altius Minerals (royalty on Cuale, Jalisco)
  • Elemental Royalty to Acquire Vizsla Royalties, Securing Long-Life Royalty Exposure to the Panuco Silver-Gold Project: Elemental Royalty (royalty on Mercedes, Sonora)
  • Vizsla Silver appoints Former Senior Mexican Government Mining Official as Vice President, Government Relations: Vizsla Silver (Panuco, Sinaloa)
  • Regency Silver Corp. (TSXV: RSMX) Appoints Private Equity Fund Manager Alejandro Sucre to Board of Directors: Regency Silver (Dios Padre, Sonora)
  • Goldgroup Announces Nominees to Board in Connection with Proposed Business Combination with Gold Resource Corporation and Amends Arrangement Agreement: Goldgroup Mining (Cerro Prieto, Sonora)

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: Epithermal quartz veining and pyrite in volcanosedimentary rocks, HQ core. Picture by Jorge Cirett.