Mineral Resource Estimate

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 Fifth Week of July, 2026

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Cervantite (Antimony Tetroxide)

By Miguel A Heredia

During the 31st week of the year (July 27 to August 2, 2026), at least 30 press releases were issued by companies operating in Mexico and 1 news published by the media. Of these, ten reported production results, nine related to deals and corporate matters, four announcing financing activities, three covered resource and development updates, three presented exploration results and two addressed Mexican-related issues. ON MEXICO ISSUES, Vulcan losses multi-million dollar claim against Mexico over Calica mine in Playa del Carmen, Quintana Roo. Mercado Minerals, Tocvan and Pacific Silver reported the best drilling intercepts in Mexico on the fifth week of July, 2026. ON EXPLORATION, In Chihuahua, Radius provided an update on its Amalia project. In Sinaloa, Mercado Minerals reported drill results from el Pilar Vein at its Copalito project. In Durango, Pacifica identified new high grade Aguilareña mineralized shoot at Claudia project, and provided an exploration update.  ON MINING, Starcore, reported Year End 2026 results. Silver Storm announced first concentrate shipment from its La Parrilla mine, Durango. Santacruz, Endeavour, First Majestic, Golden Minerals, Agnico Eagle, Alamos Gold, and J2 Metals reported Q2, 2026 production and/or financial results. Mining Americas announced that it will release its financial and operating results for the three and six months ended June 30, 2026 on August 17, 2026. ON FINANCING, Zacatecas Silver closed first tranche of a non-brokered private placement for gross proceeds of CAD $1,475,194.07. Altius closed transaction increasing ownership interest in Great Bay Renewables and announced increased credit facility. Centenario Gold announced the cancellation of an aggregate of 1,720,000 stock options. Discovery Mining increased and extended to USD $400M from USD $250M, a revolving credit facility. ON RESOURCES AND DEVELOPMENT, Axo secured major environmental permit approval for its San Antonio Gold project in Sonora and cleared path for production. Mithril reported its June 2026 quarterly activities for its Copalquin and La Dura projects in Durango. Barksdale released results from the core re-sampling program at its San Javier project in Sonora, and completed the final payment to Tusk to own 100% of the property. ON DEALS AND CORPORATE ISSUES, Goldgroup appointed Javier Reyes as Interim Chief Executive Officer effective immediately, and announced the transition of Allen Palmiere form his role as President and Chief Executive Officer and expect he remains in an advisory capacity to support an orderly leadership transition. Minaurum informed the engagement of Paula Montoya to significantly advance the geological understanding of its flagship Alamo Silver project in Sonora. Orogen Royalties announced updates for its partner funded exploration stage projects and royalties for the first half of 2026 and forecast for the remainder of the year. Tocvan appointed Brodie Sutherland, as Executive Chair, Christopher Gordon as Chief Executive Officer and Rodrigo Calles as President.  Orla receives court approval for business combination with Equinox Gold. Equinox and Orla complete business combination, creating North America´s New Senior Gold Producer. Teck and Anglo announced future Anglo Teck Executive Leadership Team. Royalties Inc announced that Chris Lloyd will present Bilbao project at the Discoveries Conference in Hermosillo, Sonora. ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

ON EXPLORATION  

  • Radius Gold Provides Portfolio Update on High-Grade Amalia and Holly Gold-Silver Projects and Announces Financing: Radius Gold Inc
  • Pacifica Silver Identifies New High-Grade Aguilareña Mineralized Shoot at Claudia Project;  Provides Exploration Update: Pacifica Silver Corp
  • Mercado Minerals Intersects 0.80 Metres of 675 g/t Silver Equivalent within 3.40 Metres of 403 g/t Silver Equivalent at El Pilar Vein Copalito Project: Mercado Minerals Ltd

ON MINING

ON FINANCING

  • Zacatecas Silver Closes the First Tranche of Non-Brokered Private Placement: Zacatecas Silver Corp
  • Altius Minerals Corporation Closes Transaction Increasing Ownership Interest in Great Bay Renewables and Announces Increased Credit Facility: Altius Minerals Corporation
  • Centenario Gold Corp, Announces Cancellation of Stock Options: Centenario Gold Corp
  • Discovery Announces Increase and Extension of Revolving Credit Facility: Discovery Mining Ltd

ON RESOURCES AND DEVELOPMENT

  • Axo Metals Secures Major Environmental Permit Approval; Clear Path for Production at the San Antonio Gold Project: Axo Metals Corp
  • Mithril Silver and Gold June 2026 Quarterly Report; Upgraded T1 MRE and District Expansion Drill Program: Mithril Silver and Gold Limited
  • Royalties Inc. Presenting Bilbao Project at the Discoveries Conference in Hermosillo, Sonora, Mexico: Royalties Inc
  • Barksdale Resources Reports 9 Metres 3.464g/t Au in SJ07-64 and 12 Metres of 1.084 g/t Au from Resampling Program, Completes Payments to Tusk to Own 100% of San Javier Project: Barksdale Resources Corp

ON DEALS AND CORPORATE ISSUES

  • Goldgroup Announces Leadership Transition as Company Advances Next Phase of Growth: Goldgroup Mining Inc
  • Minaurum Engages Dr. Paula Montoya and Launches Down-Hole Imagery Program to Enhance Geological Modeling of the Alamos Silver Project: Minaurum Silver Inc
  • Orogen Royalties Announces Project, Partner and Royalty Update: Orogen Royalties Inc
  • Tocvan Announces Strategic Management Restructuring to Align Leadership with Growth and Production Objectives: Tocvan Ventures Corp
  • Orla Receives Court Approval for Business Combination with Equinox Gold: Orla Mining Ltd
  • Equinox Gold and Orla Mining Complete Business Combination, Creating North America’s New Senior Gold Producer: Equinox Gold Corp and Orla Mining Ltd
  • Teck and Anglo American announce future Anglo Teck Executive Leadership Team: Teck Resources Limited

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, Cervantite in a low-sulphidation epithermal vein system in a project at Durango, Mexico. Photo taken by Miguel A Heredia.

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

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Ptygmatic Folds

By Miguel A Heredia

During the 29th week of the year (July 13 to July 19, 2026), at least 26 press releases were issued by companies operating in Mexico and 1 news published by the media. Of these, eight related to deals and corporate matters, six covered resource and development updates, five announcing financing activities, four reported production results, two presented exploration results and two addressed Mexican-related issues. ON MEXICO ISSUES, Torex Gold, Advance Metals, and Minaurum Silver reported the best drilling intercepts in Mexico on the third week of July, 2027. El acceso de los países al litio, el cobre, el grafito, el níquel, cobalto y las tierras raras definen su posición y supervivencia en un mundo en franca transformación, en donde las tierras raras son un grupo de 17 elementos químicos con propiedades magnéticas y electrónicas únicas para fabricar tecnologías de alto rendimiento, constituyendo piezas centrales de la economía y la seguridad internacional. ON EXPLORATION, In Chihuahua, Centenario Gold received assay results from its surface and underground mapping collected at Los Reyes project.  In Queretaro, US Antimony hired an AI company who are specialists in the hard rock mining space to work on Los Juarez Silver Mine.  ON MINING, Discovery announced that it will release Q2, 2026 results on August 13, 2026. Gold Royalty informed that it will release Q2, 2026 results on August 5, 2026. Mining Americas reported Q2, 2026 results. Altius provided and update of its project generation business activities and its junior equities portfolio. ON FINANCING, Pinnacle arranged a non-brokered private placement for gross proceeds of up to USD $2.2M. Riverside completed an initial founder financing for Ravena Resources in advance of proposed TSX Venture Spinout. Altius Minerals announced a bought deal public offering for gross proceeds of CAD $181.5M. Mexican Gold closed its previously announced non-brokered private placement for gross proceeds of CAD $2,299,000, and will change its name to Platauro Metals Corp-, effective on or about July 20, 2026. Zacatecas Silver announced a non-brokered private placement for gross proceeds of up to CAD $2.5M to advance Oso Negro drill program in Sonora. ON RESOURCES AND DEVELOPMENT, Silverco Begins Exploration Drilling at La Negra Project in Queretaro. Torex reported results from the drilling and exploration programs at ELG underground and the Media Luna Cluster in Guerrero. Minaurum engaged SGS Metallurgy and Consulting Geological Services to update the Mineral Resource Estimate on its Alamos Silver project in Sonora. Sierra Madre received drill permits from SEMARNAT to commence drilling at the East district of the Guitarra mine in State of Mexico. Silver Storm commenced hot commissioning of the sulphide circuit at La Parrilla mine in Durango. Tocvan announced a development plan for pilot mine operations at its Gran Pilar project in Sonora. Advance Metals reported drill results from its Gavilanes project in Durango. ON DEALS AND CORPORATE ISSUES, Silver Storm amended the Samsung prepayment agreement and secured CAD $5M Loan from First Majestic. Vizsla Royalties received shareholders and court approval for plan of arrangement with Elemental Royalty. Southern Silver engaged the services of ICP Securities to provide automated market making services. Goldgroup and Gold Resource are expected to commence trading under the ticker symbol “GORO” on the NYSE American LLC after the closing of the merger. Apollo Silver announced the resignation of Ross McElroy as President and CEO, and resigned from the Board of Directors: Colin P Sutherland will assume the role of President and CEO, effective July 15, 2026. Gold Resource received notification from the FTSE Russell that following the company´s previously announced merger with Goldgroup, the combined company will not eligible for inclusion in the Russell 2000. EV Resources informed that its securities were put on immediate trading halt. Goldgroup and Gold Resource announce closing of its business combination.   ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUE

ON EXPLORATION  

  • Results From The Surface and Underground Sampling Program Confirm the Existence of a Significant Copper, Moly, Gold Skarn System at Los Reyes: Centenario Gold Corp
  • United States Antimony Announces Utilization of AI Technology into Certain Mining Projects: US Antimony Corporation

ON MINING

  • Discovery Announces Details of Second Quarter 2026 Results Conference Call and  Webcast: Discovery Mining Ltd
  • Gold Royalty to Release Second Quarter 2026 Results on August 5, 2026 and Announces Acquisition of Additional Royalties: Gold Royalty Corp
  • Mining Americas Inc. Reports Second Quarter 2026 Gold Production: Mining Americas Inc
  • Altius Provides 2nd Quarter 2026 Project Generation Update: Altius Minerals Corporation

ON FINANCING

  • Pinnacle Arranges Non-Brokered Private Placement: Pinnacle Silver and Gold Corp
  • Riverside Resources Completes First Financing for Ravena Resources Corp in Advance of Proposed TSX Venture Spinout: Riverside Resources Inc
  • Altius Minerals Corporation Announces C$181.5 Million “Bought Deal” Public Offering of Common Shares:  Altius Minerals Corporation
  • Mexican Gold Mining Corp to Effect Share Consolidation and Name Change and Announces Closing of $2,299,000 Subscription Receipt Financing: Mexican Gold Mining Corp
  • Zacatecas Silver Announces Non-Brokered Private Placement of up to $2,500,000 to Advance Oso Negro Drill Program: Zacatecas Silver Corp

ON RESOURCES AND DEVELOPMENT

ON DEALS AND CORPORATE ISSUES

  • Silver Storm Commences Hot Commissioning of the La Parrilla Sulphide Circuit, Amends the Samsung Prepayment Agreement, and Secures US $5Million Loan from First Majestic: Silver Storm Mining Ltd
  • Vizsla Royalties Receives Shareholder and Court Approval for Plan of Arrangement with Elemental Royalty: Vizsla Royalties Corp
  • Southern Silver Engages ICP Securities for Automated Market Making Services: Southern Silver Exploration Corp
  • Goldgroup Mining and Gold Resource Corporation Announce Expected Ticker Symbol of Combined Company: Goldgroup Mining Inc
  • Apollo Silver Announces CEO Transition; Colin Sutherland Appointed President and CEO: Apollo Silver Corp
  • After Expected Business Combination of Gold Resource and Goldgroup Mining, Combined Company Will Be Ineligible for Russell 2000 Comprehensive Factor Index Due to National Eligibility Requirements: Gold Resource Corporation
  • EV Resources Ltd (ASX: EVR) – Trading Halt: EV Resources Limited
  • Goldgroup Mining and Gold Resource Corporation Announce Closing of Business Combination and Goldgroup´s Anticipated Listing on the NYSE American: Goldgroup Mining Inc – Gold Resource Corporation

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, ptygmatic folds in an orogenic gold system in a project in Michoacan, Mexico. Photo taken by Miguel A Heredia.