The Mining and Exploration News in Mexico: Highlights on the Second Week of September 2023

By Jorge Cirett                                             

During the 37th week of the year (September 11th to September 17th, 2023), 21 companies working in Mexico posted news releases. Two companies reported exploration advances on their properties, and one company reported quarterly results. Six companies informed on the opening or closing of private placements, their assistance to investor conferences, the amendment of terms on subscriptions and information circulars.  Five companies presented drilling results from their properties, one presented an updated mineral resource for its property, another two presented updated PEAs and three more updated on exploration activities on their projects. One company intends to change name and one other informed on litigation advances against the federal government. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Oaxaca, Vortex Metals updated on exploration work in Zaachila. In Zacatecas, Radius Gold commenced drilling at Tropico. ON MINING, Starcore International Mines reported results for its first quarter 2023. ON FINANCING, Colibri Resource informed on the closing of a financing round for US$687 K. Sailfish Royalty declared a quarterly dividend. Fortuna Silver and Regency Silver are to attend investor conferences. Sierra Madre Gold and Silver amended the terms of subscription receipts. Bear Creek Mining updated on the convertible promissory notes for the payment of US$25 M on the acquisition of the Mercedes mine in Sonora. ON RESOURCES AND DEVELOPMENT, Vizsla Silver reported drilling results from Panuco, in Sinaloa. Prime Mining announced expansion drilling results from Los Reyes, in Sinaloa. Silver Tiger Metals presented an updated mineral resource estimate for its El Tigre project in Sonora. GoGold Resources released the updated PEA on Los Ricos Sur project in Jalisco. Gold Resource updated on expansion and infill drilling at its Don David mine in Oaxaca. Alamos Gold released excellent drilling results from two target areas on its Mulatos property in Sonora. Sierra Madre Gold and Silver updated on exploration at recently acquired La Guitarra property in Estado de Mexico. Avino Silver & Gold Mines released results from deep drilling at Avino, in Durango. Orex Minerals informed on hyperspectral alteration studies being carried out at Coneto, in Durango. Golden Minerals filed an updated PEA for Velardeña, in Durango. ON DEALS AND CORPORATE ISSUES, Golden Tag Resources intends to change name to Silver Storm Mining. Almaden Minerals reported the Mexican Federal Administrative Court granted a provisional injunction to Almaden, on its fight to get their mining concessions back into good standing. Argonaut Gold reached an agreement with four ejidos to operate for three more years at El Castillo and San Agustín properties in Durango. ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • Radius Gold Inc. commenced drilling at its Tropico project in Zacatecas. The company envisages a 2,000 m drill program on the hot spring type sinter and breccia pipe system, targeting a “Fresnillo-style” mineralized system at depth, and near-surface bulk mineable gold mineralization on a 450 m by 250 m breccia pipe.
  • Vortex Metals Inc. completed the phase I geologic field program for the environmental study at Zaachila, in Oaxaca. “A total of 13 trenches have been excavated … across exposures of weakly metamorphosed Upper Jurassic sedimentary, volcanic and intrusive rocks where historical surface sampling identified copper mineralization. A total of 387 meters of trench have been cut yielding a total of 271 chip samples” with results pending. Copper mineralization has been observed as malachite, azurite, chalcopyrite and bornite, associated to silica-rich exhalite beds, as quartz-carbonate veinlets cutting silicified and chloritized meta-sediments and volcanics (green schist facies) and as bedded units in the metasediments. “In a few of the less oxidized exposures, sericite was widely observed”.

ON MINING

  • Starcore International Mines Ltd. reported results for its first quarter ended July 31, 2023. At the San Martín Mine in Querétaro, 57.7 K tonnes were milled, averaging 1.14 gpt Au, 14.4 gpt Ag, recovering 84.0% Au, 45.8% Ag, to produce 1,800 Oz Au, 12.3 K Oz Ag, at cash cost $2,158 per Oz AuEq. At the end of the period cash on hand was $5.7 M, and working capital $6.2 M. “Our quarterly production reflects our recent difficulties in reaching our higher-grade ore bodies or stopes….. We expect to achieve our targets over the remainder of the year as we are currently completing the development to the high-grade zones”.

ON FINANCING

  • Sailfish Royalty Corp. declared the company’s third quarterly dividend for 2023, in the amount of US$0.0125 per common share (Gavilanes, Durango).
  • Fortuna Silver Mines Inc. announced it is going to be present at the Gold Forum Americas in Colorado Springs, Colorado (USA), from September 17 to September 20, 2023 (San Jose, Oaxaca).
  • Regency Silver Corp. announced its chairman is to be present at the 2023 Kinvestor Days Virtual Conference on September 19, 2023 (Dios Padre, Sonora).
  • Colibri Resource Corp. closed a second and final tranche of its non-brokered private placement, for gross proceeds of US$200 K, which combined with the first tranche proceeds total US$687 K (Evelyn, Sonora).
  • Sierra Madre Gold and Silver Ltd. amended the terms of 5.12 M subscription receipts in order to extend the escrow release conditions and termination for an additional 30-day period (La Guitarra, Estado de México).
  • Bear Creek Mining Corp. updated on the convertible promissory note intended to be issued to defer a US$25 M current liability originally payable to a wholly-owned subsidiary of Equinox Gold Corp. and is issuing an amendment to its management information circular dated August 9, 2023. “The Company further announces that it has closed an unsecured and non-convertible demand loan (the “Loan”) from EquinoxGold in the amount of US$1.3 million, the proceeds of which will be used for working capital purposes and further optimization of the Mercedes Mine”. The amendment refers to an exemption of formal valuation requirement described on section 5.5(b) of Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions (Mercedes, Sonora).

ON RESOURCES AND DEVELOPMENT

  • Vizsla Silver Corp. reported results from 13 new holes targeting the La Luisa vein on its Panuco project, in Sinaloa. Highlighted true-width intervals comprise 11.20 m @ 7.14 gpt Au, 229 gpt Ag 0.3% Pb, 1.6% Zn; 8.90 m @ 2.85 gpt Au, 61 gpt Ag, 0.1% Pb, 2.2% Zn (including 0.77 m @ 10.35 gpt Au, 98 gpt Ag, 0.4% Pb, 15.8% Zn); 7.70 m @ 1.90 gpt Au, 67 gpt Ag, 0.7% Pb, 0.3% Zn (including 0.54 m @ 12.35 gpt Au, 250 gpt Ag, 5.6% Pb, 10.4% Zn and 1.08 m @ 1.48 gpt Au, 171 gpt Ag, 1.6% Pb, 11.2% Zn); 5.00 m @ 2.49 gpt Au. 155 gpt Ag, 0.9% Pb, 4.5% Zn. 8.85 m @ 0.98 gpt Au, 67 gpt Ag, 0.1% Pb, 1.0% Zn; 1.16 m @ 1.12 gpt Au, 76 gpt Ag, 0.2% Pb, 14.9% Zn. To date Vizsla Silver has reported 33 holes from La Luisa outlining a mineralized footprint 700 m long, 400 m down dip and 3.07 m in width, averaging 175 gpt Ag, 3.40 gpt Au, 0.28 % Pb, 1.33 % Zn (or 449 gpt AgEq).
  • Prime Mining Corp. reported expansion drill results from Los Reyes project in Sinaloa. “This drilling targeted areas extending materially beyond the mineral resource envelope at the Z-T, Guadalupe and Central Zones” which are the ones with defined resources. Highlighted true width intervals comprise 20.50 m @ 3.16 gpt Au, 55 gpt Ag (including 4.0 m @ 9.71 gpt Au, 85 gpt Ag); 2.20 m @ 10.10 gpt Au, 264 gpt Ag (including 1.20 m @ 17.80 gpt Au, 437 gpt Ag); 0.95 m @ 18.20 gpt Au, 2,024 gpt Ag; 1.0 m @ 5.47 gpt Ag, 615 gpt Ag.
  • Silver Tiger Metals Inc. announced an updated Mineral Resource Estimate for its El Tigre project in Sonora. “A total of 482 drill holes (124,851 metres) and 3,160 surface and adit channel samples (6,473 metres) were used in the Mineral Resource Estimate”, which includes the South Zone In Pit, South Zone Out-of-Pit, North Zone Out-of-Pit, Vein (S & N) Total, Low Grade Stockpile and Tailings Zones. Indicated Resources comprise 46.4 M tonnes @ 0.39 gpt Au, 25 gpt Ag, 0.01% Cu, 0.03% Pb, 0.06% Zn, containing 575 K Oz Au, 37.2 M Oz Ag, 9.4 M Lb Cu, 35.5 M Lb Pb, 64.3 M Lb Zn. Inferred resources comprise 20.9 M tonnes @ 0.56 gpt Au, 78 gpt Ag, 0.04% Cu, 0.13% Pb, 0.22% Zn, containing 373 K Oz Au, 52.6 M Oz Ag, 18.1 M Lb Cu, 59.7 M Lb Pb, 103.4 M Lb Zn.
  • GoGold Resources Corp. released the updated preliminary economic assessment (PEA) and mineral resource estimate for its Los Ricos South project in Jalisco. The report foresees commodity prices of $23.75 per Oz Ag and $1,850 per Oz Au, an After-Tax (5%) net present value of US$458 M, an After-Tax IRR of 37%, and an 11-year mine life (LOM) producing 88 M Oz AgEq (47 M Oz Ag, 493 K Oz Au, 14 M Lb Cu), with initial capital costs of $148 M, expansion capital of $69 M and sustaining capital of $72 M during LOM, producing 8 M Oz AgEq per year at cash cost $8.15 per Oz AgEq and all-in sustaining costs of $9.02 per Oz AgEq. The new resource estimate envisages 11.1 M tonnes averaging 1.43 gpt Au, 151 gpt Ag, 0.11% Cu in the measured and indicated resources category and 1.4 M tonnes at 1.22 gpt Au, 120 gpt Ag, 0.28% Cu in the inferred category, containing 511 K Oz Au, 53.8 M Oz Ag, 27.3 M Lb Cu (1.26 Moz AuEq) and 54.1 K Oz Au, 5.3 M Oz Ag, 8.5 M Lb Cu (140.9 K Oz AuEq) respectively.
  • Gold Resource Corp. provided an update on expansion and infill diamond drilling on the Arista, Three sisters, Gloria and Switchback vein systems at its Don David mine in Oaxaca. Highlighted true width intervals comprise 5.63 m @ 1.87 gpt Au, 279 gpt Ag, 0.2% Cu, 0.9% Pb, 1.6% Zn; 6.49 m @ 1.33 gpt Au, 21 gpt Ag, 0.17% Cu, 0.4% Pb, 2.1% Zn; 6.13 m @ 0.32 gpt Au, 214 gpt Ag, 0.76% Cu, 4.3% Pb, 3.0% Zn; 4.87 m @ 0.09 gpt Au, 47 gpt Ag, 0.47% Cu, 1.1% Pb, 7.2% Zn; 2.49 m @ 0.96 gpt Au, 27 gpt Ag, 1.01% Cu, 1.1% Pb, 9.7% Zn; 3.46 m @ 0.24 gpt Au, 198 gpt Ag, 0.74% Cu, 0.6% Pb, 4.9% Zn; 6.33 m @ 0.14 gpt Au, 60 gpt Ag, 0.62% Cu, 0.1% Pb, 2.2% Zn; 2.62 m @ 1.93 gpt Au, 73 gpt Ag, 0.81% Cu, 1.6% Pb, 10.4% Zn; 6.56 m @ 1.06 gpt Au, 27 gpt Ag, 0.22% Cu, 0.7% Pb, 2.1% Zn; 6.49 m @ 0.11 gpt Au, 78 gpt Ag, 0.64% Cu, 1.5% Pb, 2.9% Zn. “Five underground diamond drill rigs are currently operating … more than 100 drill holes and 25,000 meters of core has been drilled year-to date in 2023…. These drill results will be incorporated into a 2023 resource estimate update”.
  • Alamos Gold Inc. released drilling results from the Puerto del Aire deposit and the Capulin target at its Mulatos property in Sonora. Puerto del Aire is a high-grade underground deposit adjacent to the Mulatos pit, not included in the mineral resources, and the Capulin target is four km east of the Mulatos pit. Highlighted true width core intervals comprise 7.05 m @ 41.46 gpt Au; 9.50 m @ 18.32 gpt Au; 9.45 m @ 13.62 gpt Au; 1.20 m @ 85.80 gpt Au; 17.60 m @ 5.58 gpt Au; 18.70 @3.30 gpt Au; 6.0 m @ 10.42 gpt Au; 15.10 m @ 3.86 gpt Au; 11.50 m @ 3.21 gpt Au; 9.45 m @ 3.84 gpt Au in Puerto del Aire, and core length intercepts of 120.85 m @ 2.73 gpt Au (including 29.05 m @ 9.31 gpt Au); 6.0 m @ 3.65 gpt Au; 8.80 m @ 0.99 gpt Au in the Capulin target. Three drill rigs are currently working on the Capulin target, two defining the limits of known mineralization and one testing along the 2 km long Capulin fault. The 2023 exploration budget has been increased to 24.5 M, including 50,000 m of drilling at Puerto del Aire and 24,000 m of drilling on several high priority targets including Refugio, Halcon West, Carricito, Bajios, and Cerro Pelon West.
  • Sierra Madre Gold and Silver Ltd. Updated on its exploration activities at the past producing La Guitarra mine in Estado de México. In February 2023 the company started a 2,000-scale geologic mapping program, delineating to date nearly 53 km of mineralized quartz veins, breccias and stockwork zones hosted in metasediments and andesites, with hundreds of old shafts, cross cuts, adits, and prospect pits having been located. “ The La Guitarra Mine is a permitted, past-producing underground mine which includes a 500 t/d processing facility that operated until mid-2018”.
  • Avino Silver & Gold Mines Ltd. released the results from four holes drilled on the deepest part of the Avino mine, in Durango. The known depth extent of the mineralization is of at least 750 m vertically, which is assessed as unusual for Mexican epithermal deposits. Highlighted true width intercepts comprise 44.40 m @ 0.21 gpt Au, 31 gpt Ag, 0.70% Cu (including 9.85 m @ 0.58 gpt Au, 42 gpt Ag, 1.10% Cu); 27.15 m @ 0.07 gpt Au, 36 gpt Ag, 0.39% Cu; 13.20 m @ 0.09 gpt Au, 59 gpt Ag, 0.47% Cu; 6.60 m @ 0.12 gpt Au, 27 gpt Ag, 0.92% Cu. “Four holes totalling 2,040 meters, were drilled below Level 17 in this drill campaign … The persistence of silver and copper grade continuity from surface down a plunge distance of over 1,100 metres with increasing copper grades supports the possibility of a deeper mineralized system which may be linked to a porphyry centre”.
  • Orex Minerals Inc. announced that hyperspectral alteration studies are now underway on the Coneto project in Durango, by JV partner Fresnillo PLC. “Both direct Corescan of selected drill core from silver and gold mineralized zones, plus a SpecTIR Survey covering district scale mapping, will be conducted. These methods aid in mineral identification through Short-Wave Infra-Red (SWIR) and Visible Near Infra-Red (VNIR) analysis”. The 4,800 hectares project displays low to intermediate sulfidation Au-Ag epithermal mineralization, with 38,613 m of drilling in 106 diamond holes.
  • Golden Minerals Co. filed an updated preliminary economic assessment (PEA) for the Velardeña property in Durango.

ON DEALS AND CORPORATE ISSUES

  • Golden Tag Resources Ltd. intends (subject to regulatory and shareholders approval) to change the company name from Golden Tag Resources Ltd. to Silver Storm Mining Inc. “(La Parrila, Durango).
  • Almaden Minerals Ltd. reported that the Mexican Federal Administrative Court granted a provisional injunction to Almaden “relating to the submission issued by Mexico’s Ministry of the Economy (“Economia”) to the district court (the “District Court”) which is overseeing the implementation of the February 2022 decision of Mexico’s Supreme Court (“SCJN”) requiring indigenous consultations prior to the granting of mineral titles to the Ixtaca project ……. It is expected that the Court will decide on the grant of a permanent injunction within the coming weeks, which if received would continue in effect until the Court has ruled on the revocation of the Economia Submission” (Ixtaca, Puebla).
  • Argonaut Gold Inc. reached an agreement with four local Ejidos to operate for three more years in the El Castillo and San Agustín properties in Durango.

ON SOCIAL RESPONSIBILITY

  • No relevant news.

On the image below: Silicified structure ridge on a project in the Sonoran Desert. Picture by Jorge Cirett.

The Mining and Exploration News in Mexico: Highlights on the First Week of September, 2023

Slickensides on a fault plane

By Miguel A Heredia

During the 36th week of the year (September 4th to September 10th, 2023), at least 19 press releases were announced by companies working in Mexico, with 10 reporting resources and development of their properties, four disclosing deals and corporate issues, two commenting on Mexican issues, two informing on exploration results, and one announcing financing issues. ON MEXICO ISSUES, Silver Bull secured USD $9.5M litigation funding to pursue damages claim against the Mexican government (Sierra Mojada property, Coahuila). Torex Gold, Fortuna Silver, Reyna Silver, and Prime Mining reported the best drilling intercepts in Mexico on the fourth week of August, 2023. ON EXPLORATION, In Chihuahua, Reyna Silver reported results from three initial holes of its 2023 drilling campaign being conducted at its Batopilas project in Chihuahua.  In Oaxaca, Vortex Metals completed an environmental study at its Zaachila project.  ON MINING, no relevant news.  ON FINANCING, Aura Minerals announced that its common shares are now eligible for trading in the United States on the OTCQX® Best Market under the symbol “ORAAF” (Aranzazu Mine, Zacatecas).  ON RESOURCES AND DEVELOPMENT, Gatos Silver announced that it will report an updated mineral reserve estimate, mineral resource estimate and life of mine plan for its Cerro Los Gatos Mine, Chihuahua. Kootenay reported that it has initiated a new phase of diamond drilling at its Columba project in Chihuahua.  Fortuna released drilling results and announced the discovery of the Yessi Vein, a new blind mineralized structure at its San Jose mine in Oaxaca. SilverCrest filed an updated independent technical report for its Las Chispas mine operation in Sonora. Torex reported results from the 2023 drilling program at its EPO deposit at its Media Luna project, Guerrero. Prime Mining released drill results from its ongoing 60,000m drilling program conducted at its Los Reyes project in Sinaloa. Sierra Madre provided an update of its activities at the recently acquired, past-producing La Guitarra Mine in the State of Mexico. Chesapeake provided a metallurgical and mineralogical update for its Metates deposit in Durango.  Heliostar released drill results of three new holes completed, expanded the limits of the High Grade Panel, and defined new growth targets at its Ana Paula project in Guerrero. ON DEALS AND CORPORATE ISSUES, Argonaut appointed its new Vice President, Exploration (San Agustin mine, Durango). Plata Latina announced management changes (El Naranjillo, Guanajuato).  Gatos announced results from its annual general meeting of shareholders (Los Gatos Mine, Chihuahua). Argonaut appointed its new VP Exploration (El Castillo mine, Durango). Tarachi Gold announced Directors changes (Tarachi project, Sonora). ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUE

  • Silver Bull Resources Inc., secured USD $9.5M litigation funding to pursue damages claim against the Mexican government under the agreement between the United States of America, Mexico, and Canada and the North American Free Trade Agreement. The arbitration arises from Mexico’s unlawful expropriation and other unlawful treatment of Silver Bull and its investments resulting from an illegal blockade of Silver Bull’s Sierra Mojada project that began in September 2019 and continues to this day.
  • Torex Gold Resources inc., Fortuna Silver Mines Ltd., Reyna Silver Corp., and Prime Mining Corp., reported the best drilling intercepts in Mexico on the first week of September, 2023. Details are shown in the table below:

ON EXPLORATION

  • Reyna Silver Corp., reported results from three initial holes of its 2023 drilling campaign being conducted at its Batopilas project in Chihuahua. Drilling highlights include hole BA23-58 collared on the San Roberto-Roncesvalles Vein/Structure with 218 g/t Ag over 30m, including 616 g/t Ag over 9m, including 1,405 g/t Ag over 1.45m, including 936 g/t Ag over 1.50m; hole BA23-57 collared on the Escritorio Vein with 1,360 g/t Ag over 0.25m, and 6,440 g/t Ag over 0.20m; and hole BA23-60 collared also on the Escritorio Vein with 1,342 g/t Ag over 0.80m.
  • Vortex Metals Inc., completed an environmental study at its Zaachila project, Oaxaca. “The outcomes of the now-completed study will form the basis of an Environmental Impact Assessment (EIA) report, to be submitted to the Federal Environmental Office, SEMARNAT. This report will support Vortex Metals’ application for advanced mineral exploration activities, including drilling, as it advances its pursuit of high-grade copper targets identified in earlier geochemical targeting analyses”.

ON MINING

  • No relevant news.

ON FINANCING

  • Aura Minerals Inc., announced that its common shares are now eligible for trading in the United States on the OTCQX® Best Market under the symbol “ORAAF”. The DTC is a subsidiary of the Depository Trust & Clearing Corporation, a U.S. company that manages the electronic clearing and settlement of publicly traded companies (Aranzazu Mine, Zacatecas).

ON RESOURCES AND DEVELOPMENT

  • Gatos Silver Inc., announced that it will report an updated mineral reserve estimate, mineral resource estimate and life of mine plan for its Cerro Los Gatos Mine, Chihuahua. The company will host a conference call and webcast to discuss the 2023 updates.
  • Kootenay Silver Inc., reported that it has initiated a new phase of diamond drilling at its Columba project in Chihuahua. To date Kootenay has drilled 135 holes for just over 27,000m on the project. The new phase will consists of a minimum of 3,000m in 12-15 holes focused on expanding wide high-grade intercepts hit to date in the west-northwest trending D-Vein, and was designed “to culminate in a maiden resource for the third quarter of next year as financing will allow at which point a decision on a PEA can be made”.
  • Fortuna Silver Mines Ltd., released drilling results of three infill holes totalling 1,118m, and announced the discovery of the Yessi Vein, a new blind mineralized structure at its San Jose mine in Oaxaca. Drilling highlights (true widths reported) include hole SJOM-1387 with 2.25 g/t Au and 243 g/t Ag (412 g/t AgEq) over 0.5m, plus 2.27 g/t Au and 229 g/t Ag (400 g/t AgEq) over 0.9m, plus 6.40 g/t Au and 820 g/t Ag (1,299 g/t AgEq) over 9.9m, including 27.52 g/t Au and 3,516 g/t Ag (5,580 g/t AgEq) over 0.9m; hole SJOM-1391 with 5.92 g/t Au and 779 g/t Ag (1,223 g/t AgEq) over 0.4m, plus 3.13 g/t Au and 386 g/t Ag (621 g/t AgEq) over 5m, including 3.51 g/t Au and 455 g/t Ag (718 g/t AgEq) over 1m, including 4.32 g/t Au and 488 g/t Ag (852 g/t AgEq) over 0.5m, plus 10.36 g/t Au and 1,525 g/t Ag (2,302 g/t AgEq) over 0.3m; and hole SJOM-1396 with 2.5 g/t Au and 295 g/t Ag (483 g/t AgEq) over 0.7m. “Extension drilling intersected a new blind zone of alteration and brecciation (the Jessi Vein), approximately 200m further east of the Victoria Mineralized Zone, resulting in the intersection of 1,299 g/t AgEq over 9.9m in hole SJOM-1387 and 621 g/t AgEq over 5m in hole SJOM-1391, highlighting the potential size and strength of San Jose´s mineralized system.”
  • SilverCrest Metals Inc., filed an updated independent technical report for its Las Chispas mine operation in Sonora. The report titled “Las Chispas Operation Technical Report” is dated September 5, 2023, and has an effective date of July 19, 2023.
  • Torex Gold Resources Inc., reported results from the 2023 drilling program at its EPO deposit at its Media Luna project, Guerrero. “Results from the 2023 program continue to highlight the potential to upgrade Inferred resources to the Indicated category and expand Inferred resources through step-out drilling to the north and south of the deposit”. Drilling highlights from the 2023 resource categorization and resource expansion program are shown in the tables 1 and 2:

Through the end of July, approximately 24,140 m and 54 holes were drilled as part of the 2023 drilling program at EPO, with assays received for 34 holes. This represents 72% of the approximately 35,000 m of total drilling planned at EPO in 2023.

  • Prime Mining Corp., released drill results from its ongoing 60,000m drilling program conducted at its Los Reyes project in Sinaloa. The reported drill results are from Las Primas and Fresnillo generative targets. Las Primas is outside of the previously reported 2023 Mineral Resource Estimate, while Fresnillo is a highly prospective earlier stage target, where drilling intercepted thick mineralized structures, between the Z-T and Central Zones. Drilling highlights (true widths reported) at Las Primas include hole 23LP-14 with 10.85 g/t Au and 115 g/t Ag (12.34 g/t AuEq) over 2.45m, including 15.4 g/t Au and 162 g/t Ag (17.5 g/t AuEq) over 1.70m; hole 23LP-06 with 1.7 g/t Au and 2 g/t Ag (1.73 g/t AuEq) over 9.6m, including 4.88 g(/t Au and 5 g/t Ag (4.94 g/t AuEq) over 2.95m, including 8.2 g/t Au and 8 g/t Ag (8.3 g/t AuEq) over 1.5m; and hole 23LP-07 with 0.36 g/t Au and 19 g/t Ag (0.6 g/t AuEq) over 4.45m, plus 0.87 g/t Au and 26 g/t Ag (1.2 g/t AuEq) over 14.60m, including 1.87 g/t Au and 33 g/t Ag (2.29 g/t AuEq) over 2.95m, plus 0.94 g/t Au and 21 g/t Ag (1.21 g/t AuEq) over 7.95m. Drilling highlights (true widths reported) at Fresnillo include hole 23FRE-12 with 0.56 g/t Au and 14 g/t Ag (0.74 g/t AuEq) over 23.8m, plus 0.41 g/t Au and 5 g/t Ag (0.41 g/t AuEq) over 20.8m; hole 23FRE-19 with 1.06 g/t Au and 45 g/t Ag (1.65 g/t AuEq) over 10.9m, including 6.63 g/t Au and 438 g/t Ag (12.3 g/t AuEq) over 0.85m, plus 0.48 g/t Au and 13 g/t Ag (0.65 g/t AuEq) over 13.7m, plus 0.31 g/t Au and 9 g/t Ag (0.43 g/t AuEq) over 11.05m; and hole 23FRE-20 with 0.31 g/t Au and 7 g/t Ag (0.4 g/t AuEq) over 10.2m, plus 0.87 g/t Au and 40 g/t Ag (1.39 g/t AuEq) over 7.45m, including 2.12 g/t Au and 109 g/t Ag (3.43 g/t AuEq) over 0.9m, plus 0.33 g/t Au and 7 g/t Ag (0.42 g/t AuEq) over 13.75m.
  • Sierra Madre Gold and Silver Ltd., provided an update of its activities at the recently acquired, past-producing La Guitarra Mine in the State of Mexico. The company is currently working on completing a new resource estimate by year-end in accordance with NI 43-101, concurrent with evaluating historic cost data that would feed into a Mine Restart Study. “Sierra Madre is focused on preparing the mine, plant, and equipment for a prompt restart”. “The Company anticipates that, given adequate funding and assuming project execution tracks internal projections, restart of production at La Guitarra could be feasible within 20-22 months”.
  • Chesapeake Gold Corp., provided a metallurgical and mineralogical update for its Metates deposit in Durango.  The latest results from this phase of metallurgical testwork are very encouraging. “A systematic, methodological approach individually testing several parameters under different conditions is being undertaken in 42 columns. The results have identified certain parameters that provide the conditions where the leach technology oxidizes mineralization at a faster rate than our previous testwork. Under these conditions, we believe the targeted oxidation curve will be achieved and provide the foundation for preparing the pre-feasibility study early next year”. “Chesapeake will continue to advance the metallurgical program. As the columns meet the oxidation curve target and switch to cyanide leaching, additional columns will be loaded and tested to confirm the improved oxidation rates. At the completion of this process, the results will be released outlining the oxidative curves and precious metal recoveries through cyanide leaching. Once sufficient metallurgical work is available, management plans to commence a pre-feasibility study to further de-risk Metates and advance the project toward our goal of developing one of America’s largest gold and silver deposits”.
  • Heliostar Metals Ltd., released drill results of three new holes completed, expanded the limits of the High Grade Panel, and defined new growth targets at its Ana Paula project in Guerrero. These holes are the first to assess mineralization down-plunge of the high grade panel at the core of Ana Paula. Drilling highlights include hole AP-23-303 with 1.31 g/t Au over 64m, plus 6.46 g/t Au over 98m, including 16.39 g/t Au over 33m; hole AP-23-304 with 4.73 g/t Au over 85.5m, including 25.56 g/t Au over 9.5m; and hole AP-23-305 with 3.2 g/t Au over 47.6m, including 22.9 g/t Au over 22.9m, and including 16.15 g/t Au over 2.8m, plus 2.14 g/t Au over 33.1m, including 4.77 g/t Au over 7.4m. These intercepts expand the High Grade Panel to 280m of total length from near surface. It will grow the size of the High Grade Panel in the resource update due in November. The company also defined new growth targets through a combination of new data and review of historic information.  Drill results identified a Parallel Panel target located 50m north of the High Grade Panel with multiple high grade intercepts. Drilling highlights include hole AP-23-299 with 6.95 g/t Au over 38m, including 23.3 g/t Au over 6m; hole AP-23-304 with 10.7 g/t Au over 4m, plus 4.13 g/t Au over 5.5m; and hole AP-23-296 with 13.6 g/t Au over 2m. The company also identified the Deep Expansion Zone beneath the High Grade Panel, with open intercepts. Selective drill intercepts include hole AP-11-70 with 29.1 g/t Au over 13.5m, and hole AP-13-215 with 6.3 g/t Au over 40m. In addition, Heliostar also identified two new targets:  the West Breccia target, with gold mineralization and a pathfinder element signature as strong as the High Grade Panel, and San Luis target, a large jasperoid/vein zone with open gold drill intercepts and untested high gold grades (3.0 m grading 11.35 g/t gold) on surface. The company plans to commence the drill test of these new targets in September, 2023.

ON DEALS AND CORPORATE ISSUES

  • Argonaut Gold Inc., appointed its new Vice President, Exploration (San Agustin mine, Durango).
  • Plata Latina Minerals Corporation announced the retirement of its President and CEO and Chair of the Board of Directors, and the appointment of its replacement, effective immediately (El Naranjillo, Guanajuato).
  • Gatos Silver Inc., announced results from its annual general meeting of shareholders (Los Gatos Mine, Chihuahua).
  • Tarachi Gold Corp., announced the appointment of a new member to its Board of Directors, as well as the retirement of a former Director (Tarachi project, Sonora).

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 above, slickensides on a fault plane in an epithermal vein-bx system in a project in Durango, Mexico.  Photo by Miguel A Heredia.

The Mining and Exploration News in Mexico: Highlights on the Fourth Week of August, 2023

Silica-Alunita in a hydrothermal breccia

By Miguel A Heredia During the 34th week of the year (August 21st to August 27th, 2023), at least 20 press releases were announced by companies working in Mexico, and 4 news published by the media, with eleven reporting resources and development of their properties, five commenting on Mexican issues, four disclosing deals and corporate issues, one announcing financing issues, one communicating production and financial results, one informing on exploration results, and one discussing social issues. ON MEXICO ISSUES, The United States government requested the installation of the first United States – Mexico – Canada Agreement (USMCA or T-MEC) labor panel against Grupo Mexico. USMCA panel analyzes whether there was a violation in the case of the San Martin Mine, Zacatecas of Grupo Mexico. The president of the Business Coordinating Council (CCE), Francisco Cervantes pronounced on the request for a labor panel of the T-MEC in a mine of Grupo México. Grupo Mexico sees an impact beyond its San Martin Mine. GoGold, Sierra Metals, Vizsla and Guanajuato Silver reported the best drilling intercepts in Mexico on the fourth week of August, 2023. ON EXPLORATION, Prismo provided an update of its ongoing drilling program at its Palos Verdes project in Sinaloa.  ON MINING, Guanajuato Silver reported Q2, 2023 production and financial results from their mine operations in Mexico. ON FINANCING, Golden Minerals received New York Stock Exchange (NYSE) acceptance of plan to regain listing compliance (Rodeo project, Durango).  ON RESOURCES AND DEVELOPMENT, Tocvan and its JV partner Colibri announced results from a bulk sample collected at Pilar project in Sonora.  GoGold released additional drilling results from the Main Area at Los Ricos South project, Jalisco. Golden Tag filed NI43-101 technical report on Mineral Resources for its La Parrilla Mine Complex, Durango. Vizsla reported results from 11 drillholes collared on the Napoleon Vein at its flagship Panuco project in Sinaloa. Golden Minerals completed an updated technical report as a Preliminary Economic Assessment (PEA) for its Velardeña properties in Durango. Guanajuato Silver provided drill results from its Topia Mine in Durango. Sierra Metals announced a mineral resource expansion at its Bolivar Mine in Chihuahua. Silver Tiger reported results from initial scoping-level metallurgical test from its high grade Ag-Au El Tigre project, Sonora. Impact Silver provided a construction update at its Plomosas mine in Chihuahua. Pan American Silver announced mineral resource and mineral reserves as at June 30, 2023 at their Mexican mine operations and advanced mining projects. ON DEALS AND CORPORATE ISSUES, McEwen and Sierra Metals announced the appointment of new members to their Board of Directors. Discovery announced key appointments that strengthen the company’s Board of Directors, and also the permitting and technical teams (Cordero project, Chihuahua). Aloro announced that it has cancelled the option agreement with Cuesta del Cobre S de R.L. de C.V., to purchase the Quitovac Mine project in Sonora.  ON SOCIAL RESPONSIBILITY, Orla Mining released its inaugural sustainability report (Camino Rojo, Zacatecas).

ON MEXICO ISSUES

  • The United States government requested the installation of the first United States – Mexico – Canada Agreement (USMCA or T-MEC) labor panel under the Rapid Response Labor Mechanism (MLRR), for disagreeing with the Mexican government on the complaint against the San Martin Mine, of Grupo México, located in Zacatecas, who is accused of having impeded free unionization and authentic collective contracting. The Mexican government, for its part, responded that it would not review the case under the T-MEC mechanisms, arguing that the conflict dates back to 2007 (since the T-MEC entered into force in 2020) and that there is no evidence of that the mine exports to the United States, so it would not be a facility covered by the treaty. Grupo Mexico denounced that the union leader Napoleón Gómez Urrutia, presented the complaint that gave rise to this process with two objectives: “to have a new pretext to ignore the definitive award that condemns him to pay USD $55M plus accrued yields from 2005 to former mining workers and generate conflicts to press for a new political position that gives him jurisdiction / political privileges (“fuero politico”). After the lifting of the strike, in 2018, San Martin has received investments of more than USD $105M, has produced more than 1.25M tonnes of mineral each year and has generated about 1,300 jobs.
  • USMCA panel analyzes whether there was a violation in the case of the San Martin Mine, Zacatecas of Grupo Mexico. Given these facts, Grupo México indicated that it is essential for the San Martin Mine to put an end to a conflict that has harmed workers and their families for the last 15 years. Grupo México assured that the conflict in the San Martin Mine is not the product of the disagreement of the workers, but of the senator for Morena Napoleón Gómez Urrutia, who presented the complaint that gave rise to this process. “Urrutia sought to have a new pretext to ignore the final award that condemns him to pay USD $55M plus accrued income since 2005 to former mining workers, as well as generate conflicts to press for a new political position.
  • The president of the Business Coordinating Council (CCE), Francisco Cervantes pronounced on the request for a labor panel of the T-MEC in a mine of Grupo México. At the request of the United States government for the first panel of the Rapid Response Labor Mechanism under the Treaty between Mexico, the United States, and Canada at the San Martin mine of Grupo México, in Sombrerete, Zacatecas, Francisco Cervantes Díaz, president of the CCE, commented that it is a panel that has already lost a labor part here, that is why they are entering the issue in the United States and the resolution must be waited for. The Ministry of Economy indicated that Mexico rejected the request because this conflict dates from July 2007, and the law is not retroactive, since the “T-MEC would not be applicable to the facts related to this controversy.”
  • Grupo Mexico sees an impact beyond its San Martin Mine. The Mexican government will have the burden of proof to demonstrate in the T-MEC instance that there were no violations of union freedom in the San Martin Mine. If the case is lost, the sanctions could affect other company exports, beyond those originating from the facility in conflict, envisions the Grupo Mexico´s lawyer. It is worth remembering that the United States filed a labor complaint with the Mexican government accusing that, in the San Martin Mine, belonging to Grupo México, the rights of workers were violated because a strike was terminated by establishing a collective contract with another union, which would mean a violation of workers’ rights. Mexico maintained that this fact was prior to the entry into force of the trade agreement with the United States and Canada, and refused to carry out the investigation to determine a possible Remediation Plan for the company.
  • GoGold Resources Inc., Sierra Metals Inc., Vizsla Silver Corporation, and Guanajuato Silver Company Ltd., reported the best drilling intercepts in Mexico on the fourth week of August, 2023. Details are shown in the table below:

ON EXPLORATION

  • Prismo Metals Inc., provided an update of its ongoing drilling program at its Palos Verdes project in Sinaloa. The company has drilled 2,620m in the current program and completed thirteen holes with one hole in progress, PV-23-32. One additional hole is contemplated after completing hole PV-23-32 as part of the original drill program which began in May 2023. “This will be followed by the previously announced expansion of the drill program, with holes to be drilled from Vizsla Silver Corp. concessions adjacent to the Palos Verdes concession. These holes will target the Palos Verdes vein at depth. This follows a recommendation presented by the Panuco Joint Technical Committee to drill approximately 3,600 meters in ten holes to be completed in two phases”.

ON MINING

  • Guanajuato Silver Company Ltd., reported Q2, 2023 production and financial results from their mine operations in Mexico (El Cubo, San Ignacio, and Valenciana in Guanajuato, and Topia in Durango) All amounts are expressed in US dollars. The company mined 166,671 tonnes and milled 163,793 tonnes with metallurgical recoveries of 84.9% Ag and 83.1% Au, to produce 477.6K Oz Ag, 4,719 Oz Au, 875.8K Lb Pb, and 897.2K Lb Zn (941.3K Oz AgEq). It sold 462.9K Oz Ag, 4,427 Oz Au, 830.6K Lb Pb, and 871.3K Lb Zn (901.5K Oz AgEq) at realized prices of $24.33/ Oz Ag, $1,988.05/Oz Au, $0.97/Lb Pb, and $1.14/Lb Zn. Guanajuato Silver reported revenue of $16.8M; cost of sales of $19.2M; mine operating loss of ($2.4M); mine operating cash flow before taxes of $394.3K; net loss of ($8.6M); EBIDTA of ($4.6M); adjusted EBIDTA of ($3.41M); and working capital of ($17.8M).

ON FINANCING

  • Golden Minerals Company received New York Stock Exchange (NYSE) acceptance of plan to regain listing compliance. The listing of the Company’s common stock will continue pursuant to an extension during the plan period, during which time the Company will be subject to periodic review to determine whether it is making progress consistent with the accepted plan (Rodeo project, Durango). 

ON RESOURCES AND DEVELOPMENT

  • Tocvan Ventures Corp., and its JV partner Colibri Resource Corporation, announced results from a bulk sample collected at Pilar project in Sonora. Highlights of the recovery results for heap leaching match regional operating mine – head grade exceeds expectations include 62% recovery of gold achieved over 46-day leaching period; report confirms with increase in irrigation flowrate, higher recovery can be achieved; head grade calculated at 1.9 g/t Au and 7 g/t Ag, extracted grade calculated at 1.2 g/t Au and 3 g/t Ag; bulk sample only included coarse fraction of material (+3/4”to +1.8”); and fine fraction (-1/8”) indicated rapid recovery with agitated leach. Highlights of recap of fine fractions and gravity recovery results include 80%recovery of gold and 94% recovery of silver after rapid 24-hour retention time in agitated bottle roll test; and 95 to 99% recovery of gold and 73 to 97% recovery for silver in gravity recovery with agitated leach results of five composite samples. It includes the recovery of 99% Au and 73% Ag from drill core composite at 120m depth.
  • GoGold Resources Inc., released additional drilling results from the Main Area at Los Ricos South project, Jalisco. Drilling highlights include hole LRGG-23-316 with 1.27 g/t Au and 396 g/t Ag (6.54 g/t AuEq or 491 g(/t AgEq) over 27.3m, including 4.43 g/t Au and 1,338 g/t Ag (22.26 g/t AuEq or 1.665 g/t AgEq) over 7.6m, including 11.80 g/t Au and 7,230 g/t Ag (108.20 g/t AuEq or 8,115 g/t AgEq) over 0.9m; hole LRGG-23-304 with 1.82 g/t Au and 181 g/t Ag (4.24 g/t AuEq or 318 g/t AgEq) over 10m, including 4.34 g/t Au and 633 g/t Ag (12.78 g/t AuEq or 958 g/t AgEq) over 1.8m; hole LRGG-23-306 with 4.99 g/t Au and 605 g/t Ag (13.05 g/t AuEq or 979 g/t AgEq) over 11.7m, including 30.5 g/t Au and 3,550 g/t Ag (77.83 g/t AuEq or 5,837 g/t AgEq) over 1.5m; hole LRGG-23-309 with 1.5 g/t Au and 89 g/t Ag (2.69 g/t AuEq or 202 g/t AgEq) over 18.6m, including 12.05 g/t Au and 144 g/t Ag (13.97 g/t AuEq or 1.048 g/t AgEq) over 0.6m; and hole LRGG-23-313 with 3.23 g/t Au and 235 g/t Ag (6.36 g/t AuEq or 477 g/t AgEq) over 9.2m, including 4.64 g/t Au and 461 g/t Ag (10.79 g/t AuEq or 809 g/t AgEq) over 3.2m. The Main Area drilling campaign’s purposes is to better define the very high-grade portions of the current deposit that may be amenable to bulk underground mining.
  • Golden Tag Resources Ltd., filed NI43-101 technical report on Mineral Resources for its La Parrilla Mine Complex, Durango, with an effective date of May 31, 2023.
  • Vizsla Silver Corp., reported results from 11 drillholes collared on the Napoleon Vein at its flagship Panuco project in Sinaloa. Drilling highlights (true widths) include hole NP-23-380 with 111 g/t Ag, 0.64 g/t Au, 0.01% Pb, and 0.01% Zn (147 g/t AgEq) over 5.4m, plus 561 g/t Ag, 1.08 g/t Au, 1.3% Pb, and 6.2% Zn (849 g/t AgEq) over 1.35m, plus 346 g/t Ag, 2.21 g/t Au, 0.8% Pb, and 4.3% Zn (650 g/t AgEq) over 0.4m; hole NP-23-301 with 64 g/t Ag, 0.72 g/t Au, 0.8% Pb, and 0.8% Zn (160 g/t AgEq) over 1m, plus 908 g/t Ag, 7.37 g/t Au, 1.6% Pb, and 4.9% Zn (1,568 g/t AgEq) over 1.9m, including 1,500 g/t Ag, 8.96 g/t Au, 2% Pb, and 4% Zn (2,205 g/t AgEq) over 0.65m; hole NP-23-392 with 527 g/t Ag, 3.78 g/t Au, 2.1% Pb, and 5% Zn (989 g/t AgEq) over 2.5m, including 1,500 g/t Ag, 9.97 g/t Au, 5.2% Pb, and 6.7% Zn (2,465 g/t AgEq) over 0.69m, plus 258 g/t Ag, 1.62 g/t Au, 1.9% Pb, and 15.5% Zn (967 g/t AgEq) over 0.95m, plus 40 g/t Ag, 1.96 g/t Au, 0.6% Pb, and 11.4% Zn (602 g/t AgEq) over 1.55m. “The new drill results are centered on the western portion of the district and are part of Vizsla’s ongoing 90,000m resource infill and expansion/discovery-focused drill program. Infill and step-out (expansionary) drilling completed to date has led to an improved understanding of the mineralization controls along the Napoleon vein corridor”.
  • Golden Minerals Company completed an updated technical report as a Preliminary Economic Assessment (PEA) for its Velardeña properties in Durango. Mineral Resource Estimate (sulphides) as at June 1, 2023 considers measured + indicated resources of 665,900 tons with grades of 402 g/t Ag, 5.54 g/t Au, 1.7% Pb, and 2.1% Zn for a total of 8.6M Oz Ag, 118.5K Oz Au, 24.77M Lb Pb, and 30.48M Lb Zn contained, and inferred resources of 1,059,900 tonnes of 413 g/t Ag, 5.1 g/t Au, 1.8% Pb, and 2.3% Zn for a total of 14.06M Oz Ag, 173.7K Oz Au, 42.3M Lb Pb, and 52.7M Lb Zn contained. Highlights of the economic analysis include a mine life of 10.5 years; Pre-Tax NPV (8%) of USD $136.7M and IRR of 1,320.2%; After-Tax NPV (8%) of USD $87.6M and IRR of 860.7%; and a payback of less than one year.
  • Guanajuato Silver Company Ltd., provided drill results from its Topia Mine in Durango. Drilling highlights reported in true widths include hole UT23-468 (Argentina Vein) with 0.15 g/t Au, 202 g/t Ag, 2.3% Pb, and 0.8% Zn (317 g/t AgEq) over 0.36m; hole UT23-470  (Argentina Vein) with 0.09 g/t Au, 132 g/t Ag, 0.2% Pb, and 1.1% Zn (182 g/t AgEq) over 0.35m; hole UT23-471 (Argentina Vein) with 0.1 g/t Au, 547 g/t Ag, 1.1% Pb, and 1.8% Zn (644 g/t AgEq) over 0.80m; hole UT23-474 (Santa Cruz Vein) with 0.06 g/t Au, 490 g/t Ag, 0.7% Pb, and 0.2% Zn (521 g/t AgEq) over 0.18m; and hole UT23-476 (san Gregorio Vein) with 0.16 g/t Au, 1,180 g/t Ag, 5.1% Pb, and 23.9% Zn (2,150 g/t AgEq) over 0.15m, plus 0.19 g/t Au, 161 g/t Ag, 0.3% Pb, and 10.6% Zn (551 g/t AgEq) over 1.91m, plus 0.33 g/t Au, 124 g/t Ag, 0.4% Pb, and 7.2% Zn (409 g/t AgEq) over 0.25m. “Drilling of the Argentina and Santa Cruz veins is being done from the new El Condor Tunnel with the objective of defining the trend of mineralization to the west of the current intercepts. The Rosario and San Gregorio veins, located in the southeastern part of the district, have been drilled from the Rosario ramp; these veins are separated by approximately 350 metres, and the objective there is to follow the trend of mineralization to the west”.
  • Sierra Metals Inc., announced a mineral resource expansion at its Bolivar Mine in Chihuahua. The company reported additional 15.5M Lb CuEq in measured and indicated mineral resources hosted by the Dulce structure at its Bolivar mine in Chihuahua, Mexico. Mineral Resource at Dulce Zone as at June 30, 2023 include measured + indicated resources of 1,236,000 tonnes with grades of 0.83% Cu, 0.47 g/t Au, and 26 g/t Ag (1.24% CuEq) for a total of 22.7M Lb Cu, 18.7K Oz Au, and 1.03M Oz Ag (33.8M Lb CuEq) contained, and inferred resources of 431K tonnes with grades of 0.67% Cu, 0.57 g/t Au, and 25 g/t Ag (1.12% CuEq) for a total of 6.4M Lb Cu, 7.9K Oz Au, and 345K Oz Ag (10.6M Lb CuEq) contained.
  • Silver Tiger Metals Inc., reported results from initial scoping-level metallurgical test from its high grade Ag-Au El Tigre project, Sonora. Preliminary metallurgical work demonstrates excellent recoveries of silver, gold, copper, zinc and lead in the Sulphide and Black Shale Zones with silver equivalent recoveries of 95.7% and 98.1%, respectively. Preliminary rougher flotation tests of the Black Shale Zone recovered 91.1% copper, 98.2% lead, 98.8% zinc, 91.9% gold, and 98.4% silver (Overall Silver Equivalent Recovery – 98.1%);  preliminary rougher flotation tests of the Sulphide Zone recovered 94.2% copper, 95.3% lead, 97.6% zinc, 79.6% gold, and 96.0% silver (Overall Silver Equivalent Recovery – 95.7%);  surface Stockwork Zone column test extractions recovered – 83.1% Gold, 64.3% Silver at 3/8-in crush size with no requirement for agglomeration indicated in these tests (Overall Silver Equivalent Recovery – 78.1%; and also notable is the low cyanide consumption of 0.68 kg per tonne and lime consumption of 2.33 kg per tonne. “Previous drilling of the Surface Stockwork Zone has indicated a mineralized zone in excess of 100 meters true width. With high recoveries of 78.1% silver equivalency in column testing, simulating a heap leaching process, the Corporation sees the potential for an open pit low-cost heap leach process. This open pit heap leach process will be defined as part of the upcoming PEA”.
  • Impact Silver Corp., provided a construction update at its Plomosas mine in Chihuahua. “All necessary components of the mill have arrived on site or have been refurbished with assembly currently in the final stages. Testing and modification of the plant is expected to start in late summer, with ramp up to design capacity of nearly 200 tpd expected over the coming months. Construction is now approximately 85% complete. The Company has applied for the expansion of the current tailings pond which is expected to add at least an additional two years capacity. Meanwhile, an additional tailings pond is in the planning stages to accommodate years of future production and growth. Refurbishments to ventilation, electrical and lighting systems are ongoing as activity increases underground. Mining has begun and is expected to ramp up as the Company deploys additional equipment to the mine including scoop trams and underground trucks. Underground drilling to better define and expand resources has begun and drill permits for surface brownfield and green field exploration targets have been received. The exploration team has initiated its first phase of the 2023-2024 mine plan. This includes extraction of high-grade material in line with previous grades in excess of 13% Zn. There are currently 70 Company employees on site and another 25 contract workers. The Company is fortunate to have inherited a strong workforce after the acquisition closed and is adding positions in specific areas centred around engineering, exploration and day-to-day operations”.
  • Pan American Silver Corp., announced mineral resource and mineral reserves as at June 30, 2023 at their Mexican mine operations and advanced mining projects (Mineral resources are reported exclusive of mineral reserves). At La Colorada, Zacatecas, the company reported measured resources of 0.7M with grades of 153 g/t Ag and 0.13 g/t Au for a total  of 3.6M Oz Ag and 3K Oz Au contained; indicated resources of 2.5M tonnes with grades of 182 g/t Ag and 0.19 g/t Au for a total of 14.6M Oz Ag and 15K Oz Au contained; and inferred resources of 14.7M tonnes with grades of 174 g/t Ag and 0.2 g/t Au for a total of 82.2M Oz Ag and 43K Oz Au contained. At La Colorada Skarn, Zacatecas, it reported indicated resources of 95.9M tonnes with a grade of 31 g/t Ag for a total of 94.4M Oz Ag contained and inferred resources of 147.8M tonnes with a grade of 28 g/t Ag for a total of 132.9M Oz Ag contained. At Dolores, Chihuahua, Pan American reported measured resources of 5.5M with grades of 23 g/t Ag and 0.33 g/t Au for a total of 4M Oz Ag and 57.7K Oz Au contained; indicated resources of 0.7M tonnes with grades of 70 g/t Ag and 1.35 g/t Au for a total of 1.5M Oz Ag and 28.7K Oz Au contained; and inferred resources of 1.3M tonnes with grades of 40 g/t Ag and 1.18 g/t Au for a total of 1.7M Oz Ag and 50.3K Oz Au contained. At La Bolsa, Sonora, the company reported measured resources of 10.8M tonnes with grades of 10 g/t Ag and 0.7 g/t Au for a total of 3.5M Oz Ag and 242.8K Oz Au contained; indicated resources of 10.6M tonnes with grades of 8 g/t Ag and 0.54 g/t Au for a total of 2.7M Oz Ag and 184.3K Oz Au contained; and inferred resources of 13.7M tonnes with grades of 8 g/t Ag and 0.51 g/t Au for a total of 3.3M Oz Ag and 224.6K Oz Au contained. The company also reported mineral reserves as at June 30, 2023. At La Colorada, Zacatecas, it reported proven reserves of 5M tonnes with grades of 296 g/t Ag and 0.21 g/t Au for a total of 47.2M Oz Ag and 33.8K Oz Au contained; and probable reserves of 4.2M tonnes with grades of 292 g/t Ag and 0.19 g/t Au for a total of 39.1M Oz Ag and 25.3K Oz Au contained. At Dolores, Chihuahua, Pan American reported proven reserves of 6.3M tonnes with grades of 17 g/t Ag and 0.53 g/t Au for a total of 3.4M Oz Ag and 108.6K Oz Au contained, and probable reserves of 1.3M tonnes with grades of 24 g/t Ag and 0.53 g/t Au for a total of 1M Oz Ag and 22.1K Oz Au contained.

ON DEALS AND CORPORATE ISSUES

  • McEwen Mining Inc., announced the appointment of a new member to its Board of Directors (El Gallo mine complex, Sinaloa).
  • Sierra Metals Inc., announced the appointment of a new member to its Board of Directors as an independent non-executive Director (Bolivar Mine, Chihuahua).
  • Discovery Silver Corp., announced key appointments that strengthen the company’s Board of Directors, and also the permitting and technical teams. These include: an Independent Director, 2 Advisors to the Board, a Director, Corporate Affairs, Mexico, a Vice President Mineral Processing, and a Corporate Secretary & Manager Administrative Services (Cordero project, Chihuahua).
  • Aloro Mining Corp., announced that it has cancelled the option agreement with Cuesta del Cobre S de R.L. de C.V., to purchase the Quitovac Mine project in Sonora. After conducting further due diligence and considering the newly proposed changes to the Mining Law by the current Government of Mexico and the difficulties in obtaining a surface use agreement from the Quitovac Comunidad, Aloro feels that it is not in the Company’s best interest to proceed.

ON SOCIAL RESPONSIBILITY

  • Orla Mining Ltd., released its inaugural sustainability report. Highlights include that 25% Orla´s corporate goals were environmental, social, and governance (ESG)-linked, all of which were achieved; 100% of Orla executives and managerial-level employees were evaluated against ESG performance; achieved a respectable health and safety record, with a lost time injury frequency rate of 1.49 across their sites; generated USD $5.8M in community economic contributions at Camino Rojo, Zacatecas, including salaries, local procurement, land leases and investments in local  infrastructure; achieved an emissions level of 0.19 tonnes of CO2 equivalent per ounce of gold equivalent produced at Camino Rojo, establishing the operation as a global leader on this metric; achieved 0.15 m3/t of processed ore water intensity, with zero water discharge (100% of water reused and recycled), at Camino Rojo; developed the “Towards 2030 Sustainability Strategy” and set ESG targets to build a more sustainable, resilient and inclusive business, anchored around the goal of accelerating value creation and net-positive benefits for stakeholders.

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 above, silica + alunite in a hydrothermal breccia from an epithermal system in a project in Chihuahua, Mexico.  Photo by Miguel A Heredia.

The Mining and Exploration News in Mexico: Highlights on the Fifth Week of June, 2023

Quartz-Sericte-Pyrite (Phyllic alteration)

By Miguel A Heredia

During the 26th week of the year (June 26th to July 2nd, 2023), at least 33 press releases were announced by companies working in Mexico, and 2 news published by the media with eleven disclosing deals and corporate issues, eleven announcing financing issues, five reporting resources and developments of their properties, four informing on exploration results, two commenting on Mexican issues, and one communicating production and financial results. ON MEXICO ISSUES, Silver Bull commenced international arbitration proceedings against the United Mexican States for the Mexico’s unlawful expropriation and other unlawful treatment of Silver Bull and its investments. Violent mining takeover in Coahuila; point to followers of Senator Napoleón Gómez Urrutia. ON EXPLORATION, In Sonora, Prismo released trenching sampling results from its Los Pavitos project, and Colibri outlined mineralized structures on the Banco de Oro and Bonancita target areas at its the Plomo project. In Chihuahua, Reyna Silver commenced a drilling program at its Batopilas project. In Sinaloa, Prismo commented that it is currently drilling at its Palos Verdes project. In Durango, Orex secured surface access and core storage facilities for exploration on its Sandra Silver-Gold project. ON MINING, Gatos Silver reported Q1, 2023 financial results for its Cerro Los Gatos mine in Chihuahua where it owns a 70% interest.  ON FINANCING, Golden Minerals entered into a definitive agreement for the purchase and sale of an aggregate of 1,427,587 shares of commons stock at a price of USD $1.45 per unit (USD $2.1M) in a registered direct offering, which was closed later on obtaining the previously announced gross proceeds of USD $2.1M from the direct offering (Rodeo mine, Durango). Avino renewed a new short form base shelf prospectus and a prospectus supplement in Canada, to distribute common shares from time to time pursuant to a sales agreement with Cantor Fitzgerald & Co., H.C. Wainwright & Co., LLC, Roth Capital Partners, LLC, and A.G.P./Alliance Global Partners, in the United States up to the aggregate sales amount of USD $25M (Avino mine, Durango). Endeavour entered into a sales agreement with some Agents to raise up to USD $60M (Terronera project, Jalisco). Advance Lithium announced a non-brokered private placement for gross proceeds of up to $1M (Sarape project, Sonora). Aloro stated that due to market conditions it will not be proceeding with the previously announced private placement dated on March 03, 2023 (Quitovac project, Sonora). Heliostar announced a brokered private placement for gross proceeds of $5M; the same that later on was increased to up to $7M (Ana Paula project, Guerrero). Luca Mining closed the third and final tranche of its previously announced private placement for gross proceeds of CAD $24,896,551   (Tahuehueto project, Durango). Benjamin Hill announced that its previously announced non-brokered private placement has been extended to allow the Company and its investors time to complete and deliver subscription agreements (Sonora Gold project, Sonora). Colibri declared that it intends to conduct a non-brokered private placement for gross proceeds of up to USD $1M (Evelyn project, Sonora).  ON RESOURCES AND DEVELOPMENT, Southern Silver reported that metallurgical scoping tests confirm the technical feasibility of recovering both free cyanide-leachable gold and refractory gold from pyritic material (Cerro Las Minitas project, Durango). Minaurum extended the Environmental Impact Statement (MIA) for the development of its Alamos Silver project in Sonora. Guanajuato Silver provided an updated PEA for its El Cubo Mine Complex in Guanajuato. Luca Mining hit 500 tonnes per day milestone at its Tahuehueto project in Durango. GoGold filed a National Instrument 43-101 PEA technical report for its Los Ricos North project in Jalisco. ON DEALS AND CORPORATE ISSUES, Bear Creek granted incentive stock option to its recently promoted President and CEO (Mercedes Mine, Sonora). Mag Silver, Almaden, Sierra Metals, Goldgroup, Aztec Minerals, and Guanajuato Silver reported results from their annual general and special meeting of shareholders. Goldgroup issued a press release to clarify and retract certain disclosures with respect to the Company’s Cerro Prieto and San Jose de Gracia projects in Sonora and Sinaloa respectively. Canasil announced that the British Columbia Securities Commission revoked the temporary management cease trade order issued against certain insiders of the company (Nora project, Durango). Gatos Silver provided bi-weekly status report in accordance with National Policy 12-203- Management Cease Trade Order (Cerro Los Gatos Mine, Chihuahua). Tarachi has decided to discontinue the option agreement with Exploradora Cobre de Bacanora for the properties located in Sonora (Magistral Mill & Tailings project, Durango).. (ON SOCIAL RESPONSIBILITY, Industrias Peñoles and Fresnillo plc, Mexican mining companies of Grupo BAL, in favor of reforestation.

ON MEXICO ISSUE

  • Silver Bull Resources Inc., commenced international arbitration proceedings against the United Mexican States under the Agreement between the United States of America, Mexico, and Canada, and the North American Free Trade Agreement, for the Mexico’s unlawful expropriation and other unlawful treatment of Silver Bull and its investments resulting from the illegal blockade of Silver Bull’s Sierra Mojada project in Coahuila.
  • Violent mining takeover in Coahuila; point to followers of Senator Napoleón Gómez Urrutia. With short weapons, machetes and bats, people identified as related to the Morenista senator Napoleón Gómez Urrutia seized the town of Hércules, in Coahuila, a place of little more than 8 thousand inhabitants that was generated around the operations of extraction of iron from Minera Del Norte, a subsidiary of Altos Hornos de México (AHMSA). In a statement, the Mining Union indicated that the conflict occurred after a group majority of workers from Minera Del Norte and AHMSA decided to abandon the organization headed by Gómez Urrutia to join the National Democratic Union of Miners, and he has responded the same as he did in Zacatecas, Guerrero, Sonora and other areas, generating violence and stopping the activities of the mining companies. Minera Del Norte is the main iron extraction company in the region; all the material extracted by the workers is sent to Monclova through a 300 kilometer railway, for use as an input in the AHMSA smelting furnaces.

ON EXPLORATION

  • Prismo Metals Inc., released trenching sampling results from its Los Pavitos project in Sonora. Highlights assays include ZA2 (Auras Zone)  with 2.2 g/t Au and 23 g/t Ag over 19m long, including 10.3g/t Au and 104 g/t Ag over 4m long; ZSC9 (Santa Cruz Zone) with 0.5 g/t Au over 8m long; and ZSC10 with 2.3 g/t Au and 13 g/t Ag over 7.8m long. The company intends to explore these mineralized zones by drilling, planned to commence shortly.
  • Colibri Resource Corporation outlined mineralized structures on the Banco de Oro and Bonancita target areas at its the Plomo project in Sonora. At the Banco de Oro target, the mineralization consists of brecciated quartz veins hosted in foliated sericitized and pyrite bearing rhyolites. Recent geological mapping and sampling has covered an area of approximately 41 hectares, extending approximately 500m north of the historic Banco de Oro mine. Gold values were detected in 46 of the 64 analyzed samples, of which 14 samples returned >0.1 g/t Au, with a high grade of 1.45 g/t Au. At the Bonancita target, mineralization consists of four prospects, all of which contain historical assays from outcrop samples returning > 1 g/t Au. Three of the prospects, Bonancita, Bonancita NWI and Bonancita NWII form a NW trend approximately 2 km in length which is coincident with both a strong topographic lineament and with a strong, NW trending, regional scale magnetic gradient lineament. The recent geological mapping and sampling was conducted on the southernmost prospect, where the objective was to evaluate a NW mineralized trend defined by historical sampling including a high value of 7.62 g/t Au. The exploration program covered over 60 hectares and a total of 75 samples were collected for gold analyses, of which 15 samples returned > 0.1 g/t Au and 3 returned > 1 g/t Au with a peak value of 2.72 g/t Au. Exploration work will continue on the Plomo property to support advanced exploration and an inaugural drill program.
  • Reyna Silver Corp., commenced a 3,000m drilling program at its Batopilas project in Chihuahua, to test targets generated over the past year following recognition of the overlapping gold and silver mineralizing events.
  • Prismo Metals Inc., commented that it is currently drilling at its Palos Verdes project in Sinaloa, where six holes have been completed for a total of 928m, mainly along the northeastern extension of the vein system and certain areas in the southwestern portion where previous drilling was performed.
  • Orex Minerals Inc., secured surface access and core storage facilities for exploration on its Sandra Silver-Gold project in Durango. Sandra Silver-Gold is a 60:40 JV between Pan American Silver Corp., and Orex.

ON MINING

  • Gatos Silver Inc., reported Q1, 2023 financial results for its Cerro Los Gatos mine in Chihuahua where it owns a 70% interest. The company reported a revenue of USD $69.9M; a cost of sales of USD $26M; a cash flow from operations of USD $40M; a net income of USD $12.7M; an EBIDTA of USD $39.6M; a free cash flow of USD $28.7M; and a by-product cash cost of USD $2.66 per payable Oz Ag and a by-product all-in sustaining cost of USD $6.11 per payable Oz Ag.

ON FINANCING

  • Golden Minerals Company entered into a definitive agreement for the purchase and sale of an aggregate of 1,427,587 shares of commons stock at a price of USD $1.45 per unit (USD $2.1M) in a registered direct offering. In a concurrent private placement, the Company will issue unregistered warrants to purchase up to 1,427,587 shares of common stock with an exercise price of $1.90 per share which will be exercisable six months from the date of issuance and for a period of five years following initial exercise date. The offering is expected to close on or about June 29, 2023, subject to the satisfaction of customary closing conditions. Later on, the company announced that it closed the registered direct offering obtaining the previously announced gross proceeds of USD $2.1M. Golden will use the net proceeds from the offering for working capital and other general corporate purposes (Rodeo mine, Durango).
  • Avino Silver & Gold Mines Ltd., renewed a new short form base shelf prospectus and a prospectus supplement in Canada, to pursuant to which Avino may distribute common shares from time to time pursuant to a sales agreement with Cantor Fitzgerald & Co., H.C. Wainwright & Co., LLC, Roth Capital Partners, LLC, and A.G.P./Alliance Global Partners, as agents or as principals, for the distribution of the Offered Shares in the United States up to the aggregate sales amount of USD $25M (Avino mine, Durango).
  • Endeavour Silver Corp., entered into a sales agreement with BMO Capital Markets Corp. (the lead agent), CIBC World Markets Inc., TD Securities (USA) LLC, H.C. Wainwright & Co., LLC, B. Riley Securities, Inc., Raymond James (USA) Ltd. and National Bank of Canada Financial, Inc., pursuant to which the Company may, at its discretion and from time-to-time during the 25 month term of the Sales Agreement, sell, through the Agents, such number of common shares of the Company as would result in aggregate gross proceeds to the Company of up to USD $60M. Gross proceeds will be used to fund the construction and development of the Company’s Terronera Mine, to advance the evaluation and development of the Pitarrilla and Parral properties, to assess potential development stage mineral properties for acquisition, to fund the potential acquisition of other development stage mineral properties, for continued exploration on the Company’s existing mineral properties and to add to the Company’s working capital. 
  • Advance Lithium Corp., announced a non-brokered private placement of units at a price of $0.04 per unit. Each Unit shall be comprised of one common share in the capital of the Company and one common share purchase warrant with each warrant being exercisable to purchase one common share at a price of $0.05 per share at any time within 60 months of the date of issuance. The Financing will be for a maximum of $1M resulting in 21,250,000 units being issued. Part of the gross proceeds will be used to advance the Lithium and Sarape projects in Mexico and for general corporate purposes.
  • Aloro Mining Corp., stated that due to market conditions it will not be proceeding with the previously announced private placement dated on March 03, 2023. As announced by News Release on May 9, 2023, the Company closed a first tranche of the private placement for aggregate proceeds of $130K (Quitovac project, Sonora).
  • Heliostar Metals Ltd., announced a brokered private placement of up to 13,513,513 units of the company at a price of $0.37 per unit for gross proceeds of up to $5M, the same that later on was increased up to 14,324,324 units plus additional non-brokered private placement of 4,594,594 units for gross proceeds of up to $7M. Gross proceeds will be used to continue the exploration and development work at its Ana Paula project in Guerrero.
  • Luca Mining Corp., closed the third and final tranche of its previously announced private placement for gross proceeds of CAD $24,896,551   (Tahuehueto project, Durango).
  • Benjamin Hill Corp., announced that its previously announced non-brokered private placement Has been extended to allow the Company and its investors time to complete and deliver subscription agreements. All other terms of the Offering remain the same allowing for a maximum of 3,333,333 Units at a price of $0.12 per Unit for aggregate gross proceeds of approximately $400K (Sonora Gold project, Sonora).
  • Colibri Resources Corporation declared that it intends to conduct a non-brokered private placement of up to 1,000 for gross proceeds of up to USD $1M. Each Unit will consist of one (1) USD $1,000 principal amount 10% unsecured convertible debenture, and 5,416 common share purchase warrants. Each Warrant will entitle the holder to acquire one common share of the Corporation at a price of CAD $0.12 per common share for a period of 24 months following the closing of this offering. Net proceeds will be used for working capital and exploration expenses including drilling on the Evelyn/Plomo and Diamante/El Mezquite/Jackie projects.

ON RESOURCES AND DEVELOPMENT

  • Southern Silver Exploration Corp., reported that metallurgical scoping tests confirm the technical feasibility of recovering both free cyanide-leachable gold and refractory gold from pyritic material through a process of fine grinding and hot atmospheric pressure oxidation followed by cyanide leaching. “Both sulphide and oxide composites were tested as part of the metallurgical program. Mass balance reconciliations on the sulphide composite testwork indicate that 50% of the total gold is recoverable by hot atmospheric pressure oxidation prior to cyanide leaching at an overall 83.9% recovery. An additional 21.5% of gold is recovered into a copper concentrate at payable grades for a total of 71.5% recovery of gold”. It will de-risk and increase the value of the Cerro Las Minitas project in Durango.
  • Minaurum Gold Inc., extended the Environmental Impact Statement (MIA) for the development of its Alamos Silver project in Sonora, which includes the construction of drill pads, clean-up of preexisting roads, and the rehabilitation and reactivation of historical underground mine workings.
  • Guanajuato Silver Company Ltd., provided an updated PEA for its El Cubo Mine Complex in Guanajuato. The upgraded Mineral Resource Estimate (MRE) for El Cubo Mine Complex and financial parameters are shown in the next tables respectively:
  • Luca Mining Corp., hit 500 tonnes per day milestone at its Tahuehueto project in Durango on schedule and budget, but the focus is on towards the ultimate goal of commercial production at 1,000 tonnes per day by year-end.
  • GoGold Resources Inc., filed a National Instrument 43-101 Preliminary Economic Assessment (PEA) technical report for its Los Ricos North project in Jalisco. The table below shows the Mineral Resource Estimate as of May 17, 2023:

Highlights of the PEA, with a base case silver price of USD $23/Oz and gold price of USD $1,800/Oz include an after-tax NPV at a discount rate of 5% of USD $413M with an after-tax IRR of 29%; a 13-year mine life producing a total of 110.3M payable Oz AgEq consisting of 68M Oz Ag, 221.7K Oz Au, 22.8M Lb Cu, 144.1M Lb Pb, and 242.2M Lb Zn; an initial capital cost of USD $221M, including USD $29M in contingency costs, over an expected 18 months build; an additional expansion capital of USD $137M, and sustain capital cost of USD $6M over the life of mine (LOM); an average LOM operating cash costs of USD $9.50 per Oz AgEq, and all in sustaining costs of USD $9.69 per Oz AgEq; and average annual production of 8.8M Oz AgEq in year one through twelve; and approximately 3/4 of LOM production is from four open pits containing oxide mineralization and approximately 1/4 is from a separate open pit which contains only sulphide mineralization.

ON DEALS AND CORPORATE ISSUES

  • Bear Creek Mining Corporation granted incentive stock option to its recently promoted President and CEO. The Stock Options will vest periodically in accordance with the 2022 Plan and may be exercised on or before June 26, 2033 at an exercise price of CAD $0.45 per share, being the closing price of the Company’s shares on the TSX Venture exchange on June 23, 2023. (Mercedes Mine, Sonora).
  • Mag Silver Corp., Almaden Minerals Ltd., Sierra Metals Inc., Goldgroup Mining Inc., Aztec Minerals Corp., and Guanajuato Silver Company Ltd., reported results from its annual general and special meeting of shareholders (Juanicipio mine, Zacatecas).
  • Goldgroup Mining Inc., issued a press release to clarify and retract certain disclosures with respect to the Company’s Cerro Prieto and San Jose de Gracia projects in Sonora and Sinaloa respectively. “The Company would like to clarify that the mining key performance indicators in the Company’s Management’s Discussion and Analysis for the period ended September 30, 2022, year ended December 31, 2022 and period ended March 31, 2023 under the heading Financial And Operational Highlights have not been reviewed by the Company’s qualified person as stated and should not be relied upon. The Company is in the process of reviewing its internal procedures regarding qualified person requirements to ensure all future required disclosure are appropriately reviewed by a qualified person. In addition, the disclosure in the 2022 Annual Information Form (AIF) has triggered the requirement to file a technical report for the projects under s.4.2 (1)(f) of NI 43-101 and the Company would like to state that information in the 2022 AIF is not supported by a compliant NI 43-101 technical report, contrary to NI 43-101, and that the information should not be relied on until it has been verified and supported by a technical report”.
  • Canasil Resources Inc., announced that the British Columbia Securities Commission revoked the temporary management cease trade order issued against certain insiders of the company on May 03, 2023 (Nora project, Durango).
  • Gatos Silver Inc., provided a bi-weekly default status report in accordance with National Policy (NP) 12-203- Management Cease Trade Order (MCTO). “Pursuant to NP 12-203, the Company must file bi-weekly status reports in the form of further news releases during the period from the Notice until the MCTO is revoked. The Company reports that since the Notice: (i) there have been no material changes regarding the information contained in the Notice that have not been disclosed in a bi-weekly default status report or in a news release referenced therein; (ii) there have been no failures by the Company in fulfilling its stated intentions with respect to satisfying the provisions of the alternative information guidelines under NP 12-203; and (iii) there has not been any specified default subsequent to the defaults announced in the Notice and the news releases dated May 13, 2022, August 5, 2022, November 11, 2022, March 30, 2023 and May 15, 2023” (Cerro Los Gatos Mine, Chihuahua).
  • Tarachi Gold Corp., after a thorough review of the mineral concessions owned by Exploradora Cobre de Bacanora S de R.L. de C.V., has decided to discontinue the option agreement for the properties located in Sonora. Tarachi is evaluating new precious metal opportunities in North America and has reduced its ongoing overhead costs to conserve its significant cash assets during this review process (Magistral Mill & Tailings project, Durango).

ON SOCIAL RESPONSIBILITY

  • Industrias Peñoles S.A.B. de C.V., and Fresnillo plc, Mexican mining companies of Grupo BAL, in favor of reforestation. Both in the operation of their mining units and in their neighboring communities have implemented sustainability programs through which they encourage all people to join in caring for the flora. All the group’s operating units are located outside protected natural areas or areas of value for biodiversity and have reforestation programs and nurseries, where endemic species of the regions where they operate are cultivated.

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 above, phyllic alteration (quartz-sericite-pyrite) in a project in Jalisco, Mexico.  Photo by Miguel A Heredia.

The Mining and Exploration News in Mexico: Highlights on the Third Week of June, 2023

By Miguel A Heredia

During the 24th week of the year (June 12th to June 18th, 2023), at least 23 press releases were announced by companies working in Mexico, and 1 news published by the media with nine disclosing deals and corporate issues, seven reporting resources and developments of their properties, three commenting on Mexican issues, two informing on exploration results, two announcing financing issues, and one discussing social issues. ON MEXICO ISSUES, United States asked Mexico to review a claim at a Grupo México mine in the center of the country for an alleged denial of labor rights. Newmont Corporation suspended operations at its Peñasquito mine, in Zacatecas, after the workers’ union announced the strike. Gold Resource, GR Silver and Heliostar reported the best drilling intercepts in Mexico on the third week of June, 2023. ON EXPLORATION, Prismo provided an updated on its exploration programs at Palos Verdes project in Sinaloa and Los Pavitos in Sonora. In Oaxaca, Vortex provided a comprehensive overview of the exploration work completed to date at its Zaachila project. ON MINING, No relevant news.  ON FINANCING, Goldgroup announced proposed settlement of a loan obtained from Accendo Banco S.A (Cerro Prieto, Sonora). Silver Valley announced financing-early warrant exercise incentive program intended to encourage the early exercise of up to 12,897,114 outstanding warrants of the company (La Salada Salar, Zacatecas). ON RESOURCES AND DEVELOPMENT, Heliostar reported results from four holes drilled within and above the High-Grade Panel at the core of its Ana Paula project in Guerrero. Colibri and its JV partner Tocvan announced positive results from its ongoing bulk sample testing at the Pilar project in Sonora. GR Silver announced results of two additional step-out holes drilled at its San Marcial project in Sinaloa.  Heliostar issued a press release to clarify certain of its previous disclosure regarding its Ana Paula project in Guerrero. Prime filed a technical report for its Los Reyes project in Sinaloa. ON DEALS AND CORPORATE ISSUES, Colibri announced that it has been informed by its JV partner Agnico Eagle that the Pitaya Gold project in Sonora has been sold to a third party. Silver Dollar reported that it has terminated the exclusivity period signed with Canasil due to general market conditions. Endeavour announced the appointment of its new Vice President, Operations (Guanacevi mine, Durango). Santacruz reported that it shares will resume trading on Friday June 16, 2023 on the TSX Venture Exchange (Zimapan mine, Hidalgo). Golden Minerals appointed its new Executive Vice President (Rodeo mine, Durango). SilverCrest reported results from its annual general meeting of shareholders (Las Chispas Mine, Sonora). Kootenay declared that now it owns 100% of Columba property in Chihuahua after completing the final property payment. Gold Resource announced the resignation of one of its independent Directors of the Board of Directors (Don David Mine, Oaxaca). ON SOCIAL RESPONSIBILITY, SilverCrest released its inaugural 2022 Environmental, Social, and Governance (ESG) Report (Las Chispas mine, Sonora).

ON MEXICO ISSUE

  • United States asked Mexico to review a claim at a Grupo México mine in the center of the country for an alleged denial of labor rights, within the framework of the North American trade agreement, T-MEC, the US Department of Labor. The San Martín mine in Zacatecas owned by Industrial Minera México SA de CV, a subsidiary of the Americas Mining Corp. branch of Grupo México, has a labor complaint issued by the United States government, for denying workers the right to syndical freedom. The petition alleges the violation of the United Steelworkers and the National Union of Mining, Metallurgical, Steel and Similar Workers of the Republic of Mexico (Los Mineros)’ rights as a holder of the collective bargaining agreement at the San Martín mine and the hiring of workers to replace striking workers in violation of the collective bargaining agreement and Mexican law. The US government investigation revealed evidence of violations of the Los Mineros’ collective bargaining rights that warranted a request for review under the USMCA.
  • Newmont Corporation suspended operations at its Peñasquito mine, in Zacatecas, after the workers’ union announced the strike. The reason for this conflict is a fight over a profit-sharing agreement, the miner said in a statement. Newmont added that at the end of May the company paid the workers the equivalent of 10 percent profits, in accordance with the Law. The Union notified the Company of a strike action demanding an increase in the uncapped profit sharing benefit provided for in the Collective Bargain Agreement (CBA) from 10 percent to 20 percent, representing a 100 percent increase. In response to the strike notice, Minera Peñasquito suspended operations in a safe and orderly manner. Essential activities related to safety, security and environmental monitoring and protection continue. This is the third labor dispute since Peñasquito was purchased by Newmont in 2019. Newmont remains willing to participate in conciliation meetings to reach a resolution in accordance with the CBA, and will continue to adhere to legal procedures, respecting the rights of all its employees, inviting the Union to engage in a constructive dialogue, and providing the authorities with all requested information.
  • Gold Resource Corporation, GR Silver Mining Ltd., and Heliostar Metals Ltd., reported the best drilling intercepts in Mexico on the third week of June, 2023. Details are shown in the table below:

ON EXPLORATION

  • Prismo Metals Inc., provided an updated on its exploration programs at Palos Verdes project in Sinaloa and Los Pavitos in Sonora. Highlights at Palos Verdes project in Sinaloa include an ongoing 2,500m drilling program; 5 holes have been completed for a total of 727m; samples from the three first holes have been submitted to the lab for analysis; and a rock chip sample from mapped veins returned an assay of 840 g/t AgEq (700 g/t Ag and1.68 g/t Au) over a sample width of 1m. Highlights at Los Pavitos project in Sonora include 295 meters of trenches constructed and sampled with assay results received for 96.7 meters; an interval of 0.44 g/t Au over 10m in trench ZSC9; high grade silver assays in surface sampling in northeast Santa Cruz area; and a 2,500m drill program to start by the end of June, 2023.
  • Vortex Metals Inc., provided a comprehensive overview of the exploration work completed to date at its Zaachila project in Oaxaca. “The company is advancing towards the submission of an Environmental Impact Assessment (EIA) to the Federal Environmental Office, The Secretariat of Environment and Natural Resources (SEMARNAT), therefore fulfilling the Mexican government’s requirements for proposed drill targets.  The company believes the EIA will be completed and submitted within the next 3 to 4 months, encompassing a refined definition of the drill targets at Zaachila. Following its successful submission, Vortex will focus on obtaining the drill program approval from the Mexican government”.

ON MINING

  • No relevant news.

ON FINANCING

  • Goldgroup Mining Inc., announced proposed settlement of a loan obtained from Accendo Banco S.A., Multiple Banking Institution in 2020.  In June 2020, the Company’s subsidiary, Minas de Oroco Resources, S.A. de C.V. completed a definitive loan facility agreement with Accendo in the amount of USD $3M at a rate of 12% per annum with a final repayment date of 36 months from the date of the first disbursement. “The company guaranteed the Accendo Loan on behalf of Minas de Oroco. The amount currently outstanding under the Accendo Loan is approximately USD $185M. The debt underlying the Accendo Loan has been acquired by Minera Cerro Esperanza S.A de C.V. (MER), a wholly owned subsidiary of Calu Opportunity Fund LP (Calu). Calu is a shareholder and investor in the Company having acquired 1,177,500 Common Shares and having loaned the Company USD $2.16M (the Calu Loan). The Company will be seeking shareholder approval for the conversion of the Calu Loan into Common Shares of the Company at the Shareholders Meeting, which approval shall exclude any votes cast by Calu. MER contacted the Company on April 26, 2023 seeking repayment of the Accendo Loan. As the assets of Minas de Oroco are currently the only operating assets of the Company, the seizure of these assets would effectively place the Company into insolvency unless another arrangement was made. Further to discussions with MER, the Company is proposing to enter into a Settlement Agreement and an Exploitation and Option to Purchase Agreement, subject to approval of minority shareholders at the Meeting, pursuant to which the Company will deliver the assets of Minas de Oroco to MER in full satisfaction of the Accendo Loan and the Company is provided the right to operate the assets of Minas de Oroco and to purchase the assets in the future” (Cerro Prieto mine, Sonora).
  • Silver Valley Metals Corp., announced financing-early warrant exercise incentive program intended to encourage the early exercise of up to 12,897,114 outstanding warrants of the company. The Eligible Warrants were issued by the Company pursuant to a private placement financing completed on January 3, 2023.  The Eligible Warrants are exercisable to acquire one common share of the Company at a price of $0.15 per share, with 9,297,114 Eligible Warrants expiring November 17, 2024 and 3,600,000 Eligible Warrants expiring January 3, 2025 (La Salada Salar, Zacatecas).

ON RESOURCES AND DEVELOPMENT

  • Heliostar Metals Ltd., reported results from four holes drilled within and above the High-Grade Panel at the core of its Ana Paula project in Guerrero. “This is the area of the deposit that Heliostar believes has the potential to increase grade significantly. This drill program will evaluate Ana Paula’s ability to host a high-margin, underground gold mine development opportunity”. Hole AP-23-293 encountered 6 g/t Au over 129.2m, including 13.4 g/t Au over 46m; hole AP-23-294 intersected 2.1 g/t Au over 67.2m, including 6.4 g/t Au over 13.95m; hole AP-23-295 encountered 2.6 g/t Au over 41.5m, including 4.9 g/t Au over 5.5m, plus 3.7 g/t Au over 8m; and hole AP-23-296 with 1.9 g/t Au over 26m, including 13.6 g/t Au over 2m.
  • Colibri Resource Corporation and its JV partner Tocvan Ventures Corp., announced positive results from its ongoing bulk sample testing at the Pilar project in Sonora. Preliminary results from the leaching process ongoing confirm that the process is actively recovering gold and silver; gold and silver is reported in initial testing of carbon filters; and solution samples assayed at two separate certified labs confirm grade.  Regarding the fine fraction samples (to be used for Gravity Recovery and Agitated Leach Test), the new samples range between 1.2 and 4.9 g/t Au, weighted mean of 2.1 g/t Au; the silver values range between 5 and 29 g/t Ag, weighted mean of 14.8 g/t Ag; leach study returned 95-99% recovery of gold, 73-79% recovery of silver; and metallic screen results show 12.4 to 14.1% of the gold is coarse (+140 mesh).
  • GR Silver Mining Ltd., announced results of two additional step-out holes drilled at its San Marcial project in Sinaloa. Hole SMS23-03 intersected 111 g/t Ag, 0.01 g/t Au, 0.1% Pb, and 0.1% Zn over 17.3m, including 640 g/t Ag, and 0.03 g/t Au over 1.7m, plus 132 g/t Ag, 0.02 g/t Au, and 0.1% Zn over 6.3m, plus  134 g/t Ag, 0.11 g/t Au, 0.1% Pb, and 0.4% Zn over 35.3m. Hole SMS23-04 encountered 32 g/t Ag, 0.03 g/t Au, 0.1% Pb, and 0.1% Zn over 15m. “The wide silver intervals intersected in holes SMS23-03 and SMS23-04 continue to support the potential for extension of the wide mineralization geometry along strike. The drilling program, with two additional drill holes (for a total of six), aims to extend the footprint of the SE Area Discovery Zone for an additional 450 m along strike to the southeast, outside the Mineral Resource”.
  • Heliostar Metals Ltd., issued a press release to clarify certain of its previous disclosure regarding its Ana Paula project in Guerrero. The Company previously disclosed statements which could constitute an economic analysis of its intended re-scoping of the Ana Paula Project. The Company wishes to retract the Disclosure. The Company has not completed an economic analysis on the re-scoping of the Ana Paula Project and the Disclosure is not supported by a technical report in compliance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects. The Company advises readers not to rely on the Disclosure.
  • Prime Mining Corp., filed a technical report for its Los Reyes project in Sinaloa, for the updated mineral resource estimate (MRE) reported on May 2, 2023.  The addition of 100,000m of Prime drilling has doubled the current MRE compared to the April 2020 resource.  The table below shows the updated open pit 2023 MRE:

The MRE has a high-grade open pit mill resource and a lower grade heap leach portion.  The MRE includes drilling completed before December 31, 2022 from only the three main zones at Los Reyes: Guadalupe, Z-T and Central. This MRE does not include positive results from: Mariposa, Las Primas and Fresnillo. With ongoing drilling success, the Company believes there is significant potential to expand the MRE.

ON DEALS AND CORPORATE ISSUES

  • Colibri Resource Corporation announced that it has been informed by its JV partner Agnico Eagle Mining that the Pitaya Gold project in Sonora has been sold to a third party. In 2019, Colibri signed an agreement with Agnico to sell its 23% interest to Agnico or another buyer for a minimum of USD $500K. In 2020, Colibri was advanced USD $300K from Agnico which was secured by Colibri´s ownership of the JV company. Colibri will receive USD $500K from the sale less the outstanding loan principal and interest owed.
  • Silver Dollar Resources Inc., reported that it has terminated the exclusivity period signed with Canasil Resources Inc., due to general market conditions. “The purpose of the Exclusivity Agreement was to give Silver Dollar the opportunity to review Canasil’s assets and consider a corporate merger. Termination of the exclusivity period does not affect the separate Option Agreement between the parties, whereby Silver Dollar can earn a 100% interest in Canasil’s Nora silver-gold property”. Pursuant to the agreements, Canasil now has 60 days to repay the $200K non-interest-bearing loan Silver Dollar provided in return for the exclusivity period and the Nora Option.
  • Endeavour Silver Corp., announced the appointment of its new Vice President, Operations, to oversee the Company´s underground mining operations in Mexico (Guanacevi mine, Durango; Bolañitos mine, Guanajuato).
  • Santacruz Silver Mining Ltd., reported that it shares will resume trading on Friday June 16, 2023 on the TSX Venture Exchange, following the cease trade order being lifted by the British Columbia Securities Commission and the Ontario Securities Commission on Friday June 9, 2023 (Zimapan mine, Hidalgo).
  • Golden Minerals Company appointed its new Executive Vice President Pablo Castaños, who will be joining the company on July 1, 2023 (Rodeo mine, Durango).
  • SilverCrest Metals Inc., reported results from its annual general meeting of shareholders. The company also announced that independent consultants are continuing to advance the Updated Technical Report. This work is progressing well, with the results from this study now expected to be released in July 2023 (Las Chispas Mine, Sonora).
  • Kootenay Silver Inc., declared that now it owns 100% of Columba property in Chihuahua after completing the final property payment. The final payment of USD $215K was made and paid in cash on May 12, 2023. The company has paid a total of USD $3.29M in staged payments (of which USD $215K was paid in common shares of the Company, commencing November 2018 to earn 100% ownership. The vendor retains a 2% royalty of which 1% can be purchased by the Company for USD $750K.

ON SOCIAL RESPONSIBILITY

  • SilverCrest Metals Inc., released its inaugural 2022 Environmental, Social, and Governance (ESG) Report. The Company’s principal focus is its Las Chispas Operation located in Sonora, Mexico. “This report reflects Silver Crest’s dedication to creating a strong sustainability framework and provides stakeholders with a comprehensive overview of the Company’s ESG performance and goals”.

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 above, phyllic alteration (quartz-sericite-pyrite) in an intrusive rock in a prospect in Tamaulipas, Mexico.  Photo by Miguel A Heredia.