Technical Report NI 43-101

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

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Slickensides in brecciated and silicified volcanic rocks

By Miguel A Heredia

During the 43th week of the year (October 19 to October 25, 2026), at least 26 press releases were issued by companies operating in Mexico, and 1 news published by the media. Of these, ten related to deals and corporate matters, five reported production results, five covered resource and development updates, three addressed Mexican-related issues, three presented exploration results, and one announced financial activities. ON MEXICO ISSUES, PROFECA reported mining spill In Mina Sabinas, Zacatecas and temporarily closes part of a Peñoles storage facility. Heliostar Metals, Minaurum Silver, Axo Metals and Capitan Silver reported the best drilling intercepts in Mexico on the fourth week of October, 2026. Gambusino Prospector reported the best Lead and Zinc drilling intercepts in Mexico on the Third Quarter 2026. ON EXPLORATION, In Sonora, Algo Grande engaged Addison Mining Services to update the NI 43-101 Technical Report on its Adelita project. In Chihuahua, Kingsmen contracted Geofísica TMC to fly drone-borne aeromagnetic and LiDAR surveys at Las Coloradas project, Chihuahua. In Sinaloa, Mercado Minerals reported new surface assay results from its Zamora project. ON MINING, Altius reported Q3, 2026 attributable royalty revenue of approximately CAD $33.2M. Americas Gold and Silver, Santacruz Mining and Fresnillo plc announced Q3, 2026 production and financial results. Americas Gold and Silver informed that it will host a conference call webcast on November 13, 2026 to discuss its Q3, 2026 results. ON FINANCING, Orex announced that it intends to amend the exercise price of an aggregate of 6,366,282 outstanding common share purchase warrants of the company. ON RESOURCES AND DEVELOPMENT, Silver Tiger provided a construction update for the El Tigre Stockwork Project in Sonora. Heliostar reports drill assay results from the High Grade Panel at its Ana Paula project, Guerrero.  Capitan Silver expanded high grade silver mineralization, and announced new CRD discovery at its Cruz de Plata project. Durango. Axo Metals released the latest drilling results from its San Antonio Gold project, Sonora. Minaurum reported the discovery of a blind high grade at its Alamos Silver project in Sonora. ON DEALS AND CORPORATE ISSUES, Torex appointed Lee Hodgkinson to its Board of Directors effective November 1, 2026. Antimony Resources announced that its 2026 annual general meeting will be held on Monday, 30 November 2026. Antimony Resources reported that its US subsidiary, Strategic Minerals, Inc., has been accepted into the US Defense Industrial Base Consortium. Riverside Resources optioned its Cecilia project in Sonora to Calu Resources Corp. Axo Metals received approval to trade on the OTCQB Venture Market. Pantera Silver announced completion of annual filings and revocation of cease of trade order. Silver Storm informed on its participation on the 2026 New Orleans Investment Conference. Aloro received extension for holding its 2026 annual general meeting. Kootenay appointed Mark Smith as Technical Advisor for La Cigarra project, Chihuahua. Starcore announced voting results of its annual general meeting of shareholders. ON SOCIAL RESPONSIBILITY, No relevant news.

ON MEXICO ISSUE

ON EXPLORATION

  • Algo Grande Commissions Independent NI 43-101 Update to Capture First Year of Progress at Adelita: Algo Grande Copper Corp
  • Kingsmen Contracts Drone Magnetic and LiDAR Surveys to Trace High-Grade Structural Intersections at Las Coloradas: Kingsmen Resources Ltd
  • Mercado Minerals Announces New Surface Results from the Zamora Project Including0.40 Metres of 1615 g/t Silver and 1.77 g/t Gold at the Campanillas – La Franca Vein & 1075 g/t Silver and 1.14 g/t Gold at the El Triunfo Vein: Mercado Minerals Ltd

ON MINING

ON FINANCING

ON RESOURCES AND DEVELOPMENT

  • Silver Tiger El Tigre Construction Update: Silver Tiger Metals Inc
  • Heliostar Reports 52.4m Grading 5.84 g/t Gold from the High Grade Panel and Continues to Build Out the Expansion Zone at Ana Paula: Heliostar Metals Ltd
    Capitan Expands High-Grade Silver Mineralization to 600 Metres Down-Dip and Announces New CRD Discovery at Cruz De Plata: Capitan Silver Corp
  • Axo Metals Drilling Intercepts 48.0 Metres of 1.18 G/T AU From Surface at Recently Discovered Luz del Cobre Target; Additional Results Include 3.94 G/T AU Over 15.0 Metres: Axo Metals Corp
  • Minaurum Discovers Blind Silver Vein Grading 669 g/t AgEq Over 2.05 Metres, Highlighting Potential for Additional Blind Veins of Scale;  Resource Expansion Drilling Returns 367 g/t AgEq Over 2.65 Metres at Europa Sur at the Alamos Silver Project: Minaurum Silver Inc

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, slickensides in brecciated and silicified volcanic rocks in a project in Chihuahua, Mexico. Photo taken by Miguel A Heredia.

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 Fourth Week of August, 2026

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Hydrothermal Breccia

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

By Miguel A Heredia

During the 35th week of the year (August 24 to August 30, 2026), at least 25 press releases were issued by companies operating in Mexico. Of these, six reported production results, six related to deals and corporate matters, six covered resource and development updates, six announced financing activities, and one presented exploration results. ON MEXICO ISSUES, No relevant news. ON EXPLORATION, In Sonora, Tocvan reported new surface exploration results from a target located 4km north of the main Zone at its Gran Pilar project.    ON MINING, Orogen, Sailfish, Guanajuato Silver, Sierra Madre reported Q2, 2026 results. Silverco filed Q2, 2026 financial statements and MD & A and provided corporate update. Heliostar commenced the open pit mining at the Veta Madre in La Colorada mine, Sonora. ON FINANCING, Silver Storm increased the size of its previously announced non-brokered private placement from CAD $7.5M to CAD $15M. Silver Storm closed CAD $14.625M first tranche of non-brokered private placement and announced further upsize up to CAD $21M. Pinnacle extended the closing date of its previously announced non-brokered private placement to September 26, 2026. Algo Grande informed that it has upsized its previously announced non-brokered private placement from CAD $3M to up to CAD $5M. Alamos Gold declared quarterly dividend of USD $0.04 per common share. Centenario closed non-brokered private placement for gross proceeds of USD $1.5M.  ON RESOURCES AND DEVELOPMENT, Silverco Mining provided la Negra mine operations update. GoGold announces the formal commencement of site construction at Los Ricos South in Jalisco.  Minaurum reported drill results from the Europa, Quintera, and San Jose Vein zones as part of its ongoing Phase II, 50,000m resource-expansion drilling program at its Alamos Silver project in Sonora.  First Majestic filed NI43-101 Technical Report for the Los Gatos mine, Chihuahua. Mithril reported drill results from its Copalquin project, Durango.  Mammoth announced that it commenced field activities at its Tenoriba project, Chihuahua. ON DEALS AND CORPORATE ISSUES, Xali announced its participation at the upcoming Moody Capital Solution 2026 Disruptive Growth & Life Sciences Conference, taking place September 9–10, 2026, in New York City. Tocvan closed its purchase agreement with Colibri to acquire the remaining 49% interest in two original Pilar mining concessions, and now holds 100% ownership of its flagship Gran Pilar project in Sonora. Colibri completed the sale of 49% interest in the Pilar project in Sonora for CAD $3.6M plus 1% Net Smelting Royalty. Sonoro Gold acquired a 100% interest in 23 mineral concessions and up to 51% interest in five additional mineral concessions to further expand its Cerro Caliche project in Sonora. Mercado Minerals signed community agreement with Ejido Rincon de Ibonia at its Zamora project, Sinaloa.  Silver Viper announced the resignation of Arthur Freeze as Director of the company, effective August 23, 2026. ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUE

  • No relevant news

ON EXPLORATION  

  • Tocvan Announces New Surface Mineralization in Several Zones at Gran Pilar Gold-Silver Project: Tocvan Ventures Corp

ON MINING

ON FINANCING

ON RESOURCES AND DEVELOPMENT

  • Silverco Mining Provides La Negra Mine Operations Update: Silverco Mining Ltd
  • GoGold Commences Construction of the Fully-Funded Los Ricos South Mine: GoGold Resources Inc
  • Minaurum Significantly Expands Quintera Vein Zone with  26 m of 369 g/t AgEq and Europa Sur Returns 3.4 m of 589 g/t AgEq: Minaurum Silver Inc
  • First Majestic Files NI 43-101 Technical Report for the Los Gatos Silver Mine: First Majestic Silver Corp
  • Mithril Drills Wide, High-Grade Intercepts Confirming 550m Strike with First Systematic Drilling in the Copalquin-Zaragoza Structure at target 4: Mithril Silver and Gold Limited
  • Mammoth Begins Field Activities at its Tenoriba Gold-Silver Property, Mexico: Mammoth Resources Corp

ON DEALS AND CORPORATE ISSUES

  • Xali Gold to Present at the Moody Capital Solutions 2026 Conference: Xali Gold Corp
  • Tocvan Completes Acquisition of Remaining 49% Interest in Original Pilar Concessions, Consolidating 100% Ownership of Flagship Gran Pilar Gold-Silver Project: Tocvan Ventures Corp
  • Colibri Completes Sale of 49% Interest in Pilar for C$3.6 Million Plus 1% NSR: Colibri Resource Corporation
  • Sonoro Gold Completes Acquisition of 23 Mineral Concessions to Further Expand the Cerro Caliche Gold Project: Sonoro Gold Corp
  • Mercado Minerals Signs Community Access and Exploration Agreement with Local Ejido at the Zamora Project: Mercado Minerals Ltd
  • Silver Viper Announces Resignation of Director: Silver Viper Minerals Corp

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, a hydrothermal breccia cemented by specularite in a Cu-Au project in Sonora Mexico. Photo taken by Miguel A Heredia.

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

/ Gambusino Prospector / Leave a comment

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 Second Week of July 2026

/ Gambusino Prospector / Leave a comment

By Jorge Cirett

During the 28th week of the year (July 5th to July 12th, 2026), 42 companies working in Mexico posted press releases. Six companies on early-stage work at five properties. Ten companies updated on quarterly reports. One company repaid a loan, and another one began trading on the OTCQX Best Market. One company released a PEA, five companies released drilling results from advanced properties and two other companies informed on construction advances. Sixteen companies presented news on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Sonora, Algo Grande Copper presented geophysical studies results from Adelita, Zacatecas Silver completed a sampling survey at Oso Negro, Questcorp Mining and Riverside Resources completed a geophysical survey at La Unión. In Durango, Pacifica Silver informed on geophysics and drilling at Claudia. ON MINING, Torex Gold, Capstone Copper, Endeavour Silver, Teck Resources, First Majestic Silver, GoGold Resources, Orla Mining, Equinox gold, Pan American Silver and Aura Minerals informed on quarterly releases. ON FINANCING. Sierra Madre repaid a loan to First Majestic Silver. Talamore Mining upsized its private placement to C$130 M. Orogen Royalties began trading on the OTCQX Best Market. Vortex Metals announced a C$1 M private placement. ON RESOURCES AND DEVELOPMENT, Torex Goldreleased results from a PEA on Los Reyes, Sinaloa. Silverco Mining released drilling results at Cusi, in Chihuahua. Capitan Silver presented drilling results from Cruz de Plata, in Durango. Luca Mining announced results from drilling at Tahuehueto, in Durango. Silver Tiger provided a construction update for El Tigre, in Sonora. Minaurum Silver released drilling results Alamos Silver in Sonora. EV Resources presented a timeline to production at Los Lirios, in Oaxaca. GR Silver reported drill results from San Marcial, at its Plomosas project in Sinaloa. ON DEALS AND CORPORATE ISSUES, Goldgroup receives approval for its merger with Gold Resource. Guanajuato Silver announced an appointment and a resignation to its board. Alcon Silver shareholder approved its merger with Mexican Gold Mining. First Majestic is selling its San Martín de Bolaños property to a Mexican private enterprise. Empress Royalty engaged AI services. Defiance Silver made the final option payment on San Acacio, Zacatecas. Vortex Metals announced an appointment to the board. Tocvan Ventures acquires the remaining 49% interest in the Pilar concession in Sonora, from Colibri Resource. Alamdex Minerals sold royalty portfolio to Empress Royalty. Independent advisory firms recommend Orla Mining and Equinox shareholders to vote for their merger. Pacifica Silver announced the appointment of Stephen Redak as VP Exploration (congratulations Stephen, and welcome back to Mexico). ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • No Relevant News

ON EXPLORATION

  • Pacifica Silver’s First IP Survey Identifies Large, Near-Surface Chargeability Anomaly at Claudia; Drill Testing Commences on New “Judy” Anomaly: Pacifica Silver (Claudia, Durango)
  • Algo Grande Reports Phase II Drill Update and UAV Magnetic Survey Results at Adelita; Multiple Porphyry Centers Identified at Depth: Algo Grande Copper (Adelita, Sonora)
  • J2 Metals Mobilizes UAV Drone Mag Survey at Sierra Plata Silver-Gold-Antimony Project, Zacualpan-Taxco District, Mexico: J2 Metals (Sierra Plata, Guerrero)
  • Zacatecas Silver Announces Completion of Phase Two Sampling at Oso Negro, Sonora: Zacatecas Silver (Oso Negro, Sonora)
  • Questcorp and Riverside Resources Complete Complementary Geophysics Programs as Drilling Continues at La Union Project: Questcorp Mining (La Unión, Sonora)
  • Riverside Resources and Questcorp complete Geophysics Programs and Continue Drilling at La Unión Project: Riverside Resources (La Unión, Sonora)

ON MINING

  • Torex Gold Reports Q2 2026 Production Results: Torex Gold  (Morelos Complex, Guerrero)
  • Capstone Copper to Release Second Quarter Results on July 30, 2026: Capstone Copper (Cozamin, Zacatecas)
  • Endeavour Silver Produces 1,943,955 Oz Silver and 10,474 Oz Gold, for a total of 3.4 Million Silver Equivalent Oz in Q2 2026: Endeavour Silver (Terronera, Jalisco)
  • Teck to Release Second Quarter 2026 Results on July 23, 2026: Teck Resources (San Nicolás, Zacatecas)
  • First Majestic Reports Q2 2026 Production Results; Announces Updated 2026 Production and Cost Guidance, and Q2 Conference Call Details: First Majestic Silver (Santa Elena, Sonora)
  • GoGold Announces 21% Increase in Parral Production: GoGold Resources (Parral, Chihuahua)
  • Orla Mining Reports Strong Second Quarter Operating Results: Orla Mining (Camino Rojo, Zacatecas)
  • Equinox Gold Reports 176,836 Ounces of Gold Production in Q2 2026, Canadian Gold Production Increased 11% Quarter-over-Quarter: Equinox Gold (Los Filos, Guerrero)
  • Pan American Silver to Announce Second Quarter 2026 Unaudited Financial Results: Pan American Silver (La Colorada, Zacatecas)
  • Aura Announces Preliminary Q2 2026 and H1 2026 Production Results: Aura Minerals (Aranzazu, Zacatecas)

ON FINANCING

  • Sierra Madre Fully Repays First Majestic Loan: Sierra Madre Gold and Silver (La Guitarra, Estado de México)
  • Talamore Completes Bookbuild and Announces Upsize of Previously Announced Equity Offering to C$130 Million: Talamore Mining (Cristina, Chihuahua)
  • Orogen Royalties Begins Trading on OTCQX Best Market: Orogen Royalties (royalty on Ermitaño, Sonora)
  • Vortex Metals Strengthens Executive Leadership Team, and Announces C$1.0 Million Private Placement: Vortex Metals (Riqueza Marina, Oaxaca)

ON RESOURCES AND DEVELOPMENT

  • Torex Gold Releases Results of Los Reyes Preliminary Economic Assessment: Torex Gold  (Morelos Complex, Guerrero)
  • Silverco Mining Intersects High-Grade Silver at Cusi, Including 1,100 g/t Ag over 10.3 Metres: Silverco Mining (Cusi, Chihuahua)
  • Capitan Silver Intersects 1,077 g/t Silver Equivalent over 1.1 Metres, Within a Wider Zone of 6.7 Metres of 342.2 g/t Silver Equivalent at the Cruz de Plata Project: Capitan Silver (Cruz de Plata, Durango)
  • Luca Intersects 4.7 Metres of 6.7 g/t Gold Equivalent at Tahuehueto Mine – A New High-Grade Breccia Zone Discovery: Luca Mining (Tahuehueto, Durango)
  • Silver Tiger Provides Construction Update for the El Tigre Project: Silver Tiger (El Tigre, Sonora)
  • Minaurum Extends High-Grade Quintera Vein at Depth with 5.95 m of 1,117 g/t Silver Equivalent; Europa Sur Returns 3.65 m of 888 g/t AgEq: Minaurum Silver (Alamos Silver, Sonora)
  • Advancing Tecomatlán Production Timeline Pathway and Los Lirios Results: EV Resources (Los Lirios, Oaxaca)
  • GR Silver Reports Significant Drill Results at San Marcial: 21.9 m at 168 g/t Ag including 6.15 m at 447 g/t Ag in the SE Area: GR Silver

ON DEALS AND CORPORATE ISSUES

  • Goldgroup Announces Receipt of Final Court Approval for Arrangement with Gold Resource Corporation: Goldgroup Mining (San Francisco, Sonora)
  • Guanajuato Silver Announces Officer Resignation: Guanajuato Silver El Cubo, Guanajuato)
  • GR Silver Announces Executive Appointment: GR Silver (Plomosas, Sinaloa)
  • Alcon Silver Announces Shareholder Approval of Arrangement: Alcon Silver – Mexican Gold Mining (Las Minas, Veracruz)
  • Pacifica Silver Appoints Stephen Redak as VP Exploration
  • First Majestic Enters into Definitive Agreement to Sell its San Martin Silver Mine for Total Proceeds of US$90 Million: First Majestic Silver (San Martín de Bolaños, Jalisco)
  • Empress Engages Geomorphic AI to Enhance Royalty and Streaming Deal Origination: Empress Royalty (royalty on Tahuehueto, Durango)
  • Defiance Silver Completes Final Option Payment to Secure 100%Ownership of San Acacio: Defiance Silver  (San Acacio, Zacatecas)
  • Vortex Metals Strengthens Executive Leadership Team, and Announces C$1.0 Million Private Placement: Vortex Metals (Riqueza Marina, Oaxaca)
  • Colibri Announces Definitive Agreement to Sell Remaining 49%Interest in Pilar for C$3.6 Million While Retaining 1%NSR: Colibri Resource (EP, Sonora)
  • Tocvan Enters into Definitive Agreement to Acquire Remaining 49% Interest in Original Pilar Concessions, Consolidating 100% Ownership of Flagship Gran Pilar Gold-Silver Project: Tocvan Ventures
  • Almadex Announces Sale of Royalty Interests: Almadex Minerals (Ixtaca, Puebla)
  • Empress Announces Acquisition of North American Royalty Portfolio: Empress Royalty  (Tahuehueto, Durango)
  • Independent Proxy Advisory Firms Recommend Orla Shareholders Vote FOR the Arrangement Resolution in Connection with Proposed Business Combination with Equinox Gold: Orla Mining (Camino Rojo, Zacatecas)
  • Independent Proxy Advisory Firms Recommend Equinox Gold Shareholders Vote FOR Share Issuance Resolution in Connection with Proposed Business Combination with Orla Mining: Equinox Gold (Los Filos, Guerrero)  

ON SOCIAL RESPONSIBILITY

  • No Relevant News

On the image below: Chlorite alteration, quartz veining, hematite staining and late calcite veining in volcanosedimentary rocks, HQ core. Picture by Jorge Cirett