The Mining and Exploration News in Mexico: Highlights on the Second Week of July, 2019

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By Jorge Cirett

During the 28th week of the year (July 8th to July 14th, 2019), at least 27 press releases were announced by companies working in Mexico. ON MEXICO ISSUES, Camimex announced investments for US$2,705 M on new gold projects from 2019 to 2024. The same organism informed Mexico’s gold production declined 6.7% between 2017 and 2018. ON EXPLORATION, In Baja California, One World Lithium released results from drilling at Salar del Diablo. In Sonora, Magna Gold started its phase one exploration program at its Mercedes project on the Santa Rosa de Yecora district. In Chihuahua, Sable Resources received the drilling permit for its Vinata project. In Coahuila, Discovery Metals received the drilling permit for its Monclova project. In Guanajuato, Fresnillo explores near Mineral de La Luz. ON MINING, Torex Gold, Coeur Mining, Great Panther, GoGold Resources and Endeavour Silver presented production results for the second quarter of 2019. ON FINANCING, Mexican Gold Corp, Impact Silver, One World Lithium, Oceanus Resources, Silver One Resources, Advance Gold and Millrock undertook or completed tranches of financing rounds for a combined $13.45 M. Evrim Resources granted 1 M stock options to an officer. ON RESOURCES AND DEVELOPMENT, SilverCrest Metals filed the PEA on Las Chispas, Sonora. VVC Exploration received the environmental permit  and a land use change permit for its Samalayuca project in Chihuahua. SilverCrest Metals released high grade results from underground sampling of the Babicanora vein at Las Chispas, Sonora. Goldplay released good gold results from trenching on an extension of the Nava zone on its San Marcial project in Sinaloa. ON DEALS AND CORPORATE ISSUES, Orex Minerals and Pan American Silver entered into an agreement to negotiate a formal JV agreement on the Sandra Escobar project in Durango. Oroco Resources signed a letter of agreement to acquire the 766 ha. Rossy concession adjacent to Oroco’s land package on the Santo Tomas district in Sinaloa.

ON MEXICO ISSUES

  • Camimex (Cámara Minera de México), informed on a list of new gold producing projects that involve the investment of US$2,705 M between 2019 and 2024. Among the biggest investments are those of Torex Gold (US$482 M) in Media Luna, Guerrero; Grupo Mexico’s (US$413 M) Buenavista Zinc in Sonora and Fresnillo’s (US$350 M) Orisyvo in Chihuahua. Other investments include the second dynamic leaching plant at La Herradura; the Pyrites plant in Fresnillo; Goldcorp’s Pyrite plant in Peñasquito, Zacatecas; and Endeavour’s El Compas in Zacatecas; Candelaria Mining is to start operations at Pinos, Zacatecas; Mag Silver and Fresnillo are to begin production at Juanicipio, Zacatecas; Telson Resources is to finish construction of the mine at Tahuehueto, Durango; Hecla’s will continue with open pit and then underground operations at San Sebastian, Durango.
  • Camimex stated that during 2018 Mexico’s gold production diminished 6.7% compared with 2017, reaching 3.8 M Oz Au. Five companies produced more than half of the overall gold production in 2018: Fresnillo (24.1%), Torex Gold (9.3%), Agnico Eagle (8.5%), Goldcorp (7.1%) and Minera Frisco (6.5%) (Editor’s note.- This last company has the dubious honor of being the most opaque for disclosing production, reserves and resources from its projects in Mexico).

ON EXPLORATION

  • Sable Resources Ltd. has received the permit needed to drill the Vinata project in Chihuahua. The surface agreements have been approved by the local community for an initial 2,500 m diamond drill program “to test the vertical continuity and mineral zoning along a section of the Vinata vein system where the veins are observed outcropping over 1000 m along strike”. Sable will contract a ground electromagnetic survey (CSAMT) to better define the vein system at depth and the contacts between a felsic dome and volcanic and sedimentary rocks. The mineralisation at Vinata occurs as a series of quartz veins that outcrop for 1,200 m, with multiple sub-parallel veins and stockwork zones over a width of 15 to 170 m, with individual veins ranging to up to 12 m in width.
  • One World Lithium Inc. released results from drilling at its Salar del Diablo property in Baja California (there is not a state named Baja California Norte in Mexico). The drill holes did not reach the target depths due to “the constant sluffing of sand, presence of multiple clay formations, unconsolidated gravel and rubble”. The highest lithum grade in sediment samples was 273 ppm Li, whereas the water samples are thought to have been diluted by the injection of significant amounts of fresh water while drilling. The Company intends to resume its 4,250 foot drilling program before the end of September 2019.
  • Discovery Metals Corp. has been granted drilling permits for its Monclova project in Coahuila. “The Real Viejo area is the key near-term target. It hosts five historic shallow underground mines along a strike of 1.5km at a limestone-intrusive rock contact”, with rock channel samples averaging 277 gpt Ag, 6.7% Zn, 1.9% Pb. The Real Viejo area is 2 square-km in size and is located along the southern contact of the Monclova intrusive complex, where a series of Ag-ZnPb mineralised, silica-rich vein, replacement bodies (mantos), skarn-altered embayment zones and breccias 2-10 m wide are located.
  • Fresnillo Plc. is realizing exploration work in the Guanajuato district, mainly near Mineral de La Luz.
  • Magna Gold Corp. initiated its phase one exploration program on the Mercedes project in Sonora. The aim on this phase is to confirm the existence (suggested by historical drilling) of an oxide zone of quartz stockwork Au-Ag mineralisation 60 m wide and 220 m long, and a surface study including geological mapping of a 500 ha zone and  systematic rock chip and soil geochemical surveys.

ON MINING

  • Torex Gold Resources Inc. reported Q2 2019 gold production of 113,600 Oz Au at its Limon-Guajes mine in Guerrero. Plant throughput averaged 11,670 tonnes per day (tdp), underground mine production was 1,280 tpd, open pit ore production was 18,600 tpd and the open pit strip ratio was 6.8:1.
  • Coeur Mining Inc. announced second quarter 2019 production. At Palmarejo, in Chihuahua, 447.7 K tonnes were milled @ 2.18 gpt Au, 147.4 gpt Ag, with recoveries of 87.7% Au, 81.8% Ag to produce 28,246 Oz Au, 1.7 M Oz Ag. Production at the La Nacion deposit began and is anticipated to add 400 tpd of mill feed.
  • Great Panther Mining Ltd. presented second quarter 2019 results including figures from its Mexican operations. At Topia, in Durango 18.4 K tonnes were processed @ 392 gpt Ag, 1.01 gpt Au, recovering 93.9% Ag, 58.9% Au to produce 218 K Oz Ag, 353 Oz Au, 453 tonnes Pb, 575 tonnes Zn. At the Guanajuato mine Complex, solely from the San Ignacio mine, 45.5 K tonnes were processed @ 2.52 gpt Au, 105 gpt Ag, recovering 85.5% Ag, 87.0% Au, to produce 388.4 K Oz Ag, 3,209 Oz Au.
  • GoGold Resources Inc. reported production results from its tailings project in Parral, Chihuahua. During the period 250 K Oz Ag, 2,281 Oz Au were recovered.

Endeavour Silver Corp. disclosed second quarter 2019 production results from its four mines in Mexico.

Endeavour Q2 2019 Production table1

ON FINANCING

  • Mexican Gold Corp. is undertaking a non-brokered private placement for aggregate gross proceeds of up to $4 M (Las Minas, Veracruz).
  • Impact Silver Corp. completed the first tranche of its non-brokered private placement, raising gross proceeds of $1.23 M, and announced the increase on the second tranche of financing to up to $1.5 M (Zacualpan, Estado de Mexico).
  • Evrim Resources Corp. announced the approval of the grant of 1 M stock options to an officer under the terms of the company’s stock option plan (Cerro Cascaron, Chihuahua).
  • One World Lithium Inc. closed the first tranche of its private placement financing, raising CDN$734.6 K (Salar del Diablo, Baja California. Please note there is not a Baja California Norte state in Mexico).
  • Oceanus Resources Corp. closed a non-brokered private placement raising $750 K (El Tigre, Sonora).
  • Silver One Resources Inc. increased its previously announced private placement, for gross proceeds of $5 M (La Frazada, Nayarit).
  • Advance Gold Corp. closed the non-brokered private placement financing previously announced, for gross proceeds of $234 K (Tabasquena, Zacatecas).
  • Millrock Resources Inc. plans to raise gross proceeds of between $1 M and $1.5 M through a non-brokered private placement. Finder’s fees of 7% cash and 7% finder’s warrants may be paid in connection with the Offering (Batamote, Sonora).

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc. filed the technical report titled “Technical Report and Preliminary Economic Assessment for the Las Chispas Property, Sonora, Mexico”. The PEA results were previously released.
  • VVC Exploration Corp. received the environmental permit and a land use change permit for its Samalayuca copper property in Chihuahua. With those permits the company can initiate mining operations in the Gloria zones of the Kaity claim. VVC began bench testing with mineralised material from the Gloria zones to assess metallurgy with different crush sizes and acid flow rates.
  • SilverCrest Metals Inc. provided the first underground sample results from the Babicanora vein on its Las Chispas project in Sonora. A total of 133 samples were collected from blast faces for 35 m of a 3.5 m by 3.5 m drift along the vein, same that averaged 2.6 m (vein width) @ 13.70 gpt Au, 1,107 gpt Ag (or 2,132 gpt AgEq). Some of the best intervals released comprise: 3.9 m @ 62.66 gpt Au, 4,610 gpt Ag (including 0.6 m @ 336 gpt Au, 26,435 gpt Ag); 4.1 m @ 13.91 gpt Au, 709 gpt Ag; 3.5 m @ 16.69 gpt Au, 2,192 gpt Ag; 1.8 m @ 53.18 gpt Au, 3,548 gpt Ag; 3.2 m @ 12.89 gpt Au, 799 gpt Ag; 5 m @ 16.69 gpt Au, 2,192 gpt Ag; 3.2 m @ 18.74 gpt Au, 459 gpt Ag; 2.1 m @ 14.77 gpt Au, 1,542 gpt Ag; 2.5 m @ 15.27 gpt Au, 1,426 gpt Ag; 2.5 m @ 21.73 gpt Au, 1,231 gpt Ag.
  • Goldplay Exploration Ltd. encountered a broad gold zone at the Nava target of its San Marcial project in Sinaloa. The results come from a zone 300 m west of the first Nava trenches, where a 31 m true width (tw) zone mineralised zone of epithermal quartz veins and a zone of intense stockwork which returned 17.7 m (tw) @ 2.11 gpt Au. The target is to be drill tested on the next drill program with a couple of holes.

ON DEALS AND CORPORATE ISSUES

  • Orex Minerals Inc. entered into an agreement with Pan American Silver Corp. to negotiate a formal JV agreement on the Sandra Escobar project in Durango, to replace a previous agreement from 2015, and will suspend the operation of the 2015 agreement until the new agreement is entered into, or until December 31, 2019, whichever is earlier.
  • Oroco Resources Corp. entered into a letter of agreement for the acquisition of an 80% interest in the 766.7 ha Rossy mining concession located within Oroco’s land package on the Santo Tomas district in Sinaloa. The company has to pay US$125 K over two years and issue 300 K shares and grant 1.5 NSR.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the image below, orogenic gold style milky quartz vein bearing pyrite and jarosite in Oaxaca. Picture by Jorge Cirett

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The Mining and Exploration News in Mexico: Highlights on the Second Week of June, 2019

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By Jorge Cirett

During the 26th week of the year (June 24th to June 30th, 2019), at least 43 press releases were announced by companies working in Mexico. ON MEXICO ISSUES, a resolution by the Supreme Court is awaited to learn how the Mining Fund resources are to be allocated, if for social and environmental infrastructure (as planned) or as direct allocations to the people of the communities, the preferred method of the president (a method the opposition denounces as vote buying). In Sonora a local congressman introduced a bill for a new state tax on dirt extracted from open pits, a measure that if implemented is to pose a further weight in the already heavy fiscal load for mining companies in Mexico. Furthermore, the Economy Secretariat (Secretaria de Economia) published a letter stating that the “Protocol of Good Practice of Mining for the Public Consultation” (Protocolo de buenas practicas de la Minería para la consulta pública) is under review by the agency. It is not possible to underrate the importance of the review of this protocol, because if it is implemented incorrectly the result would impact fast and catastrophically the Mexican exploration industry. One of the more pressing issues is the fact that placing the consultation process before exploration takes place, would end most exploration in one swipe. If in doubt, just take a look to Oaxaca, where, although not being in the law you have to make the community consultation process before exploring, and the result is that hardly any exploration work is nowadays conducted in one of the states with the best mineralization potential in Mexico. Trust is hard to earn, let’s not throw it away so carelessly. ON EXPLORATION, In Zacatecas, Galore continues to drill at Dos Santos; Alien Metals updated on its exploration of Donovan 2 and Los Campos. ON MINING, Alien Metals released its financial results for 2018. ON FINANCING, Santacruz signed an agreement to extend the payment of a US$2.3 M loan. Galore is making a $1.5 M financing. Goldplay closed an oversubscribed financing for $1.37 M. Leagold completed a debt refinancing for a $200 M term loan and a $200 M revolving credit facility. ePower intends to conduct a private placement for Cdn$6 M. Sable granted 2.8 M incentive stock options. Alien Metals raised £350 K.  ON RESOURCES AND DEVELOPMENT, Mexus Gold  is to start leaching at Santa Elena, in Sonora. Telson reported significant underground channel sample results at Tahuehueto. Orla presented the result of the FS on Camino Rojo. Premier Gold presented results of its 42,000 m drilling campaign at Mercedes. Southern Silver file a technical report with updated resources on Cerro Las Minas. Santacruz presented results of drilling at Veta Grande. GoGold released results of drilling at Los Ricos. SilverCrest informed the decline has intersected the Babicanora vein at Las Chispas. Minera Alamos informed on the permitting of Santana. Almaden updated on permitting and legal issues at its Ixtaca project in Puebla. ON DEALS AND CORPORATE ISSUES, Millrock sold its Sonoran portfolio to Riverside. ePower Metals entered into a definitive agreement with Minera Alamos to acquire the Los Reyes project in Sinaloa. Silver Viper renegotiated much better terms on the lease of two properties within its La Virgina project in Sonora. Golden Minerals entered into an agreement under which Minera Autlan is to buy its Velardeña properties. Bacanora Lithoum signed an investment agreement and an offtake agreement with Ganfeng Lithium on its Sonora lithium project. Canasil and Pan American agreed on terms for the acquisition of Pan American of the Sandra Escobar project in Durango.

ON MEXICO ISSUES

  • The Economy Secretariat is awaiting the resolution of the Supreme Court on the change of rules to apply the Mining Fund, which this year is anticipated to be amounting to 3.2 billion pesos (3,200 millones) or approximately US$168.4 M. The proposal by the present Federal government (ie.- the president) is to deliver the resources directly to the people to “augment the capacities” of the mining communities. The aim would be to organize the community and the service providers to be part of the service chain for the mining industry. The resources on the Mining Fund to date are to be funneled according with the current rules, until a resolution by the Supreme Court clarifies the issue.
  • In Sonora, local congressman Carlos Navarrete from the Encuentro Social party (allied to the Morena party) introduced a bill for a new State tax on dirt extracted from open pits (includes waste, sand, dimension stone, clays, limestone, lime, among others). The US$0.63 tax per cubic metre of material would be split 80/20 between the municipalities and the State. The resources would be utilized in physical investments and infrastructure with social impact, in the environment and urban development (The bill intends to use the resources thus gathered in the same way that those of the Mining Fund were supposed to be used, and for which a 7% federal royalty tax was imposed on mining a few years ago. Now that the current president Andrés Manuel Lopez Obrador intends to use the resources of the Mining Fund for his preferred programs, allied politicians are trying to make the mining industry pay even more taxes).
  • The Economy Secretariat published a letter on the “Protocol of Good Practice of Mining for the Public Consultation”. In the letter the Economy Secretariat states that the protocol is under review by the agency. On the Letter: The consultation process is to be applied to all communities that can be impacted by the mining activity. Also, both exploration and exploitation should be consulted before their realization. The responsible authority is to be the Economy Secretariat, with aid by the Instituto Nacional de los Pueblos Indigenas and other authorities (SEMARNAT, CONAGUA, CFE, local municipal and state governments), as well as the state and federal Human Rights Commissions.

ON EXPLORATION

  • Galore Resources Inc. informed its 2,500 m diamond core drilling program at the El Alamo target of its Dos Santos project in Zacatecas continues to progress well. The first hole “intersected multiple zones of alteration and brecciation …… silicified and brecciated limestone similar to those observed on the surface over a much wider zone than was anticipated”.
  • Alien Metals Ltd. updated on its exploration activities at its Zacatecas properties Donovan 2, Los Campos and Don Celso. Sampling and mapping at Donovan 2 has resulted in high grade mineralisation in historic workings open along strike, and channel sample assays of up to 1.15% Cu and float samples of up to 0.45 gpt Au. Planned work includes a ground induced polarisation (IP) geophysical survey before the first phase of drilling. Surface mapping and sampling will be undertaken at Los Campos and Don Celso properties, as well as underground sampling and a geophysical survey at Los Campos.

ON MINING

  • Alien Metals Ltd. released its audited financial results for 2018. The company owns the Donovan 2, Los Campos, San Celso and La Africana projects in Zacatecas. The company held US$0.7 M in cash and cash equivalents by the end of the period.

ON FINANCING

  • Santacruz Silver Mining Ltd. reached an agreement to amend the repayment terms of the US$2.3 M short-term loan that it has borrowed from a private Bolivian mining company. The principal balance of US$2.3 million is now to be repaid by January 30, 2020. As consideration for the extension on the date of repayment Santacruz is to increase the issue of 2 M warrants to 2.5 M warrants (Veta Grande, Zacatecas).
  • Galore Resources Inc. is to commence a non-brokered private placement to raise gross proceeds of up to $1.5 M (Dos Santos, Zacatecas).
  • Goldplay Exploration Ltd. closed its over-subscribed previously announced financing, for gross proceeds of $1.37 M. A total of $28.9 K was paid and 231 K warrants were issued as a finder’s fee payment (San Marcial, Sinaloa).
  • Leagold Mining Corp. completed the debt refinancing with a syndicate of lenders that includes a $200 million term loan and a $200 million revolving credit facility. These loans have been used to replace $238 million of existing short-term debt, and will aid in the development of the Bermejal underground complex, the Guadalupe open pit and the CIL plant construction at it Los Filos mine in Guerrero.
  • ePower Metals Inc. intends to conduct a non-brokered private placement to raise up to Cdn$6 M (Los Reyes, Sinaloa).
  • Sable Resources Ltd. granted 2.8 M incentive stock options to certain officers, directors, employees and consultants of the company. Such options are exercisable at a price of $0.15 for a period of five years (Margarita and Vinata, Chihuahua).
  • Alien Metals Ltd. raised £350 K through the placement of shares (Donovan 2, Los Campos, Zacatecas).

ON RESOURCES AND DEVELOPMENT

  • Mexus Gold US. is to start leaching at its Santa Elena mine in Sonora (not to mistake for First Majestic’s Santa Elena mine, also in Sonora). Leaching is programmed to start on June 27th, with ore grading 1.8 gpt Au, 8 gpt Ag, to later on add ore @ 4 gpt Au, 12 gpt Ag. By September the company expects to be mining 3,500 tonnes per week.
  • Telson Mining Corp. reported significant channel sample assay results for underground mine development at its Tahuehueto project in Durango, where a 1,000 tonne per day mine is under construction. Highlighted results include: 2.42 m @ 5.76 gpt Au, 129 gpt Ag, 1.44% Cu, 3.8% Pb, 6.2% Zn; 5.50 m @ 3.31 gpt Au, 57 gpt Ag, 0.32% Cu, 0.9% Pb, 3.5% Zn; 5.38 m @ 4.41 gpt Au, 44 gpt Ag, 0.38% Cu, 1.5% Pb, 3.6% Zn; 7.0 m @ 5.12 gpt Au, 40 gpt Ag, 0.29% Cu, 1.0% Pb, 3.2% Zn; 6.45 m @ 5.69 gpt Au, 51 gpt Ag, 0.21% Cu, 2.3% Pb, 5.6% Zn; 4.42 m @ 8.70 gpt Au, 59 gpt Ag, 0.18% Cu, 1.7% Pb, 2.2% Zn; 4.08 m @ 9.27 gpt Au, 69 gpt Ag, 0.19% Cu, 0.6% Pb, 1.0% Zn; 3.56 m @ 7.95 gpt Au, 76 gpt Ag, 0.25% Cu, 3.3% Pb, 4.6% Zn. Individual assays are often above 5 gpt Au, and up to 28 gpt Au.
  • Orla Mining Ltd. presented the results of a feasibility study on its Camino Rojo Oxide project in Zacatecas. The main points include 18 K tonnes per day operation, with 44 M tonnes of ore to be put on the leach pad @ 0.73 gpt Au, 14.2 gpt Ag, containing 1 M Oz Au, 20.1 M Oz Ag. The expected recovery is 64% Au, 17% Ag, with an annual gold production of 97 K Oz Au at by-product cash cost $515 per Au Oz and an AISC of $576 per Au Oz. The after tax net present value (5%) is $142 M, with an after tax internal rate of return of 28.7% and a payback period of three years, all this in the case scenario of $1,250 per Au Oz price. The proven and probable mineral reserves stand at 44 M tonnes @ 0.73 gpt Au, 14.4 gpt Ag, whereas the measured and indicated resources amount to 353.4 M tonnes @ 0.83 gpt Au, 8.8 gpt Ag, containing 9.46 M Oz Au, 100.4 M Oz Ag. Inferred mineral resources are 60.9 M tonnes @ 0.87 gpt Au, 7.4 gpt Ag, containing 1.70 M Oz Au, 14.5 M Oz Ag.
  • Premier Gold Mines Ltd. presented exploration results of its 42,000 m drilling program at its Mercedes mine in Sonora. New mineralised veins have been confirmed at San Martin, opening the area 600 m to the west of the Lupita deposit. Drilling at San Martin returned multiple intercepts, including 7.2 m @ 4.64 gpt Au, 30 gpt Ag; 1.4 m @ 5.56 gpt Au, 38 gpt Ag. Ongoing delineation at Lupita includes intercepts of 3.9 m @ 10.3 gpt Au, 88 gpt Ag and 1.5 m @ 23.9 gpt Au, 71 gpt Ag. Exploration is to be activated at La Mesa area, adjacent to Agnico Eagle’s Santa Gertrudis project.
  • Southern Silver Corp. filed a NI-43-101 report with an updated mineral resource estimate for its Cerro Las Minas project in Durango (previously disclosed). The indicated resources amount to 11.1 M tonnes @ 105 gpt Ag, 0.1 gpt Au, 0.16% Cu, 1.2% Pb, 3.7% Zn, containing 37.5 M OZ Ag, 35 K Oz Au, 40 M Lb Cu, 303 M Lb Pb, 897 Lb Zn, Inferred mineral resources comprise 12.8 Mt @ 111 gpt Ag, 0.07 gpt Au, 0.27% Cu, 0.9% Pb, 2.8% Zn, containing 45.7 M Oz Ag, 31 K Oz Au, 76 M Lb Cu, 253 M Lb Pb, 796 M Lb Zn. “The overall objective of the 2019-20 exploration program is to continue to increase the existing resource base and to identify and drill test new epithermal vein systems within the larger claim package.”
  • Santacruz Silver Mining Ltd. released results from phase 1 of the current drilling program on the Veta Grande, Armados and Navidad veins on its Veta Grande project in Zacatecas. Highlighted true width intercepts comprise 0.55 m @ 761 gpt Ag, 0.2 gpt Au, 0.86% Pb, 1.84% Zn, 0.04% Cu; 1.94 m @ 65 gpt Ag, 0.75 gpt Au, 1.23% Pb, 3.84% Zn, 0.03% Cu at the Navidad vein; 2.40 m @ 227 gpt Ag, 0.88 gpt Au, 2.71% Pb, 2.64% Zn, 0.19% Cu; 1.59 m @ 280 gpt Ag, 0.61 gpt Au, 3.60% Pb, 3.24% Zn, 0.22% Cu.
  • GoGold Resources Inc. released results from two more diamond drill holes at its Los Ricos property in Jalisco. Highlighted intervals comprise 5.0 m @ 0.52 gpt Au, 161 gpt Ag; 6.3 m @ 2.14 gpt Au, 337 gpt Ag and 32.0 m @ 0.80 gpt Au, 179 gpt Ag, including 11.3 m @ 1.46 gpt Au, 348 gpt Ag. The 10,000 m HQ diamond drill program “is focused on defining the mineralized halo around the historical high grade ore shoots as defined by the underground workings and the 65 historical RC drill holes on the property”.
  • SilverCrest Metals Inc. informed the decline has intersected the Babicanora vein at the Las Chispas project in Sonora. The decline intersected the Babicanora vein and the newly identified Baby Vista vein, the first with 3.6 m true width and the second with 1.5 m true width. Additional highlighted infill results of the area 51 of the Babicanora vein include 7.6 m @ 26.6 gpt Au, 2,676 gpt Ag; 3.5 m @ 32 gpt Au, 3,417 gpt Ag; 5.6 m @ 13.6 gpt Au, 1,154 gpt Ag. The 51 in-fill drill holes totaling 18,488 m reported in this news release were “generally targeting mineralization on the outer edges of the current block model” have a weighted average true width of 2.2 m @ 7.17 gpt Au, 753 gpt Ag. An additional 40,000 to 50,000 m of infill and expansion drilling with 15 drill rigs on site focused on expanding mineralization and improving resource confidence. To date over 203,000 m of drilling have been sunk in the property. Ongoing work includes the Feasibility study expected in H1, 2020 development of the Babicanora Vein in Area 51 zone, stockpiling of high-grade material, an extensive metallurgical test program, geotechnical work and permitting for project development.
  • Minera Alamos Inc. received notification by SEMARNAT (Mexican environmental agency) confirming the successful completion of the technical review phase of the application (Estudio Tecnico Justificativo – “ETJ”) for the change of land use to allow the construction of mining and processing facilities at the Santana project area in Sonora. Phase 2 exploration will continue on the coming months, focusing to “demonstrate the potential of the project to host multiple “Nicho-style” mineralized systems that could be combined to supply feed material for an expanded regional production facility”.
  • Almaden Minerals Ltd. current focus at its Ixtaca property in Puebla relates to permitting and financing activities. “Review by Mexican authorities of Almaden’s environmental permit application (Manifestación de Impacto Ambiental, or “MIA”) continues in the normal course, and recently SEMARNAT, Mexico’s environmental authority, completed its public information meeting in the town of Santa Maria”. Almaden is engaged with several potential financing parties to secure funds for the development of the project. Regarding a decision by a lower court in Puebla State concerning Mexico’s mineral title system, Mexico’s Federal Congress, Senate, and Ministry of the Economy each filed appeals against the decision, as well as Almaden.

ON DEALS AND CORPORATE ISSUES

  • Ridgestone Mining Inc. entered into an agreement to acquire 100% interest in ten mining concessions adjacent to its Rebeico project in Sonora. The concessions cover 3,292 ha west of the Ridgestone claims, in an area with “numerous artisanal workings and mineralized outcrops”. Ridgestone has to make a $83 K payment and issue 5 M shares to the vendor.
  • Millrock Resources Inc. entered into an agreement to sell the La Union, Los Cuarentas, El Pima, El Valle and Llano del Nogal claim blocks to Riverside Resources Inc. The Santa Rosalia option from the Los Cuarenta project will also be transferred. The deal, that includes a geological database and exploration equipment, involves Riverside paying $35 K and issuing 150 K shares to Millrock, as well as a 0.5% net smelter royalty (NSR) on the El Pima and El Valle claims, and in the Santa Rosalia option.
  • ePower Metals Inc. entered into a definitive agreement with Minera Alamos Inc. and Vista Gold Corp. under which ePower has the right to earn 100% interest in the Los Reyes project in Sinaloa. In connection with the Transaction, the Company intends to change its name to “Prime Mining Corp.”, and will focus its resources on the immediate development of Los Reyes. ePower has to complete a $1.5 M cash payment to Minera Alamos, and assume the remaining option payments to Vista Gold of US$1.5 M on October 2019 and US$1.5 M on October 2021, as well as issuing Minera Alamos 9.45 M post-consolidation shares and 3.35 M warrants. ePower has to consolidate its common shares capital on a two-for-one basis and complete a financing of at least Cdn$6 M. The Los Reyes project has an historical estimate of 427.2 K Oz Au, 7.5 M Oz Ag in indicated resources and 196.7 K Oz Au, 4.8 M Oz Ag of inferred resources.
  • Silver Viper Minerals Corp. renegotiated the terms of the Rubi-Esperanza option agreement to purchase three mineral concessions within its La Virginia project in Sonora. The overall agreement reduced the total cash payments from $4.49 M to $3 M, augmented in one year the term of the option and crucially reduced the amount on the first three payments by $1.46 M, enabling Silver Viper to direct maximum expenditures to advancing the project. According to the new agreement the company has to pay US$50 K on June 2019 (paid), US$75 K on June 2020, US$100 K on June 2021, US$200 K on June 2022 and US$2.575 M on June 2023. A 2% NSR can be purchased for US$2 M within 5 years of the original agreement remains unchanged. “Surface geochemistry and prospecting have identified targets to the north, south and east of the El Rubi discovery (6 m TW @ 3.16 gpt Au, 228 gpt Ag) which will be tested during the next phase of drilling. In addition, Silver Viper has contracted Geotech Ltd. to conduct a 720 line-kilometer magnetic and radiometric survey over the El Rubi and La Gloria targets for a total coverage of 4,900 hectares”.
  • Golden Minerals Co. entered into an agreement to sell its Velardeña properties to Compañía Minera Autlán S.A.B. de C.V. for $22 M. The deal comprises the Velardeña properties, including the Velardeña and Chicago mines (currently in care and maintenance) and other adjacent exploration properties, and the lease agreement under which Golden Minerals has the oxide plant with Hecla thorough 2020. The proposed transaction also would include the sale of the Rodeo and the Santa Maria project concessions. Upon execution of this agreement, Autlan paid a deposit of US$1.5 million to Golden Minerals, which will be applied to the purchase price upon closing.
  • Bacanora Lithium PLC. signed an investment agreement and off-take agreement with Ganfeng Lithium Co. (a key player in the lithium industry globally). Once completed this agreement would form a major part of the financing package needed to develop the initial 17,500 tonnes per year production of lithium carbonate. The £14.4 M strategic investment provides Ganfeng with 29.99% of Bacanora, pre-emption rights and a director on the board. Another project level investment of £7.56 M in Sonora Lithium Ltd. (the holding company of the project) accrues Ganfeng 22.5% of the holding company, with an option to increase its interest to 50% within 24 months and the appointment of a director to the board. GFL will provide a plant and process commissioning team to assist Bacanora in delivering first production in 2021.
  • Canasil Resources Inc. and Pan American Silver Corp. signed the definitive agreement under which Pan American has the right to acquire Canasil’s interest in the Sandra Escobar project, in Durango. The transaction was closed for a payment of CDN$2 M and grant of a 2% NSR, with Pan American being able to buy 1% of the NSR by the payment to Canasil of CDN$4 M.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the image below, conglomerate with well-rounded quartz vein and silicified rock fragments in the coastal plain in Veracruz. Picture by Jorge Cirett.

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The Mining and Exploration News in Mexico: Highlights on the First Week of May, 2019

By Jorge Cirett

During the 18th week of the year (April 29th to May 5th, 2019), at least 35 press releases were announced by companies working in Mexico. ON MEXICO ISSUES, Newmont Goldcorp Corp. informed on the intention to temporarily suspend operations at the Peñasquito mine in Zacatecas, due to an illegal blockade lasting for more than a month now. More than 300 mine employees protested outside the Zacatecas Congress, accusing José Narro, senator by Morena (the president’s party) of instigating the blockade. Drill core from La Xora project in Nayarit was added to The Mexican Core Shack. ON EXPLORATION, Nine companies presented advances in the exploration of their properties: In Baja, One World Lithium has received the permits to drill its Salar Del Diablo property. In Sonora, Sonoro Metals disclosed assays for the first 15 RC holes of the second drilling campaign; Ridgestone updated the work done to date at Rebeico; Minaurum staked a large chunk of ground at its Alamos project. In Chihuahua, Silver Spruce released surface sample results from its Pino de Plata project; Radius Gold released exciting results from the first hole of the second drilling campaign at Amalia; Kootenay Silver has initiated drill road construction for its incoming campaign at Columba. In Jalisco, GoGold released results from its drilling campaign at Los Ricos. In Zacatecas, Alien Gold updated on the exploration effort at its Donovan 2 property. ON MINING, nine companies presented its first quarter 2019 results, while one company presented its 2018 results. ON FINANCING, First Mining, and Prize Mining are to raise $6 M and $1.5 M respectively. Leagold Mining secured a 200 M term loan and a 200 M revolving credit. ON RESOURCES AND DEVELOPMENT, no relevant news.  ON DEALS AND CORPORATE ISSUES, Alio Gold received notice of a civil claim from a former Rye Patch shareholder.  

ON MEXICO ISSUES

  • Newmont Goldcorp Corp. informed on the intention to temporarily suspend operations at the Peñasquito mine in Zacatecas (one of the largest in Mexico, produced 272 K Oz Au in 2018), due to an illegal blockade by a trucking contractor and some members of the Cedros community that began on March 27, 2019. The company announced on April 9 that the trucking contracts will now be signed with independent truckers, to their economic benefit and to avoid the repeated extortion blockades by the current trucking contractor. Newmont Goldcorp denounced that the blockader’s public claims that focus in water quality and employment, turn in a direct petition for large amounts of money when done privately. The company asks for help from the Mexican and Zacatecan authorities to resolve the illegal blockade that affects the income of more than 20 thousand persons, directly or indirectly. On a different event, about 300 employees of Minera Peñasquito, protested outside the Zacatecas Congress against the illegal blockade that keeps paralyzed the Peñasquito mine. The protesters accused Jose Narro, senator by the president party, Morena, and his acolyte Felipe Pinedo of blackmailing the company with false water contamination statements.  
  • Core from La Xora project, in Nayarit, was added to the Mexican Core Shack (https://gambusinoprospector.com/mexican-core-shack/), under the epithermal low sulphidation section.

ON EXPLORATION

  • Sonoro Metals Corp.  reported assay results from the first 15 reverse circulation holes of the second phase drilling program at its Cerro Caliche property in Sonora. All holes encountered gold mineralization, which extend mineralization 1.25 Km NW from the Central Zone, where the first drill campaign defined a series of NW striking structures, outlining three shallow bulk tonnage oxidized mineralized zones in metasedimentary and volcanic rocks. Previously reported results come from the Central Zone prospects Japoneses, Abejas, El Colorado and Guadalupe, whereas the new drill holes tested El Rincon, Gloria, El Boludito, and Veta de Oro zones. Highlighted results comprise 10.67 m @ 2.73 gpt AuEq; 3.05 m @ 5.48 gpt AuEq; 10.67 m @ 0.74 gpt AuEq; 6.1 m @ 0.80 gpt AuEq; 15.24 m @ 1.05 gpt AuEq.
  • Alien Metals Ltd. updated on its exploration work at its Donovan 2 project in Zacatecas. Work to date supports indications of volcanogenic massive sulphide (VMS) mineralisation on multiple target areas open along strike, with surface assays of up to 3.3% Cu, 0.25% Zn. Currently there are magnetic, chargeabilty and resistivity anomalies, and a gravity survey underway is to refine the targets on this project, which is 24 kilometers from Teck’s San Nicolas deposit.
  • Ridgestone Mining Inc. announced that exploration work to date on its Rebeico property in Sonora defined the 1.2 km long Alaska vein and intensely altered breccia zones SW of the vein, carrying Cu, Au and Ag values, as well as bismuth anomalies. An 18 line-kilometer induced polarization (IP) survey identified a chargeability anomaly below the breccia zone. A 12 hole 1,430 m diamond drill program tested 500 m of the Alaska vein. Eight of the twelve holes intersected significant grades, including: 0.80 m @ 1.41% Cu, 2.95 gpt Au; 2.0 m @ 2.78% Cu, 8.69 gpt Au; 1.40 m @ 3.25 gpt Au; 1.50 m @ 1.39 gpt Au; 1.0 m @ 0.30% Cu, 5.61 gpt Au; 3.25 m @ 2.41% Cu, 8.31 gpt Au; 1.50 m @ 1.22% Cu, 36.10 gpt Au.  
  • One World Lithium Inc. has received the permit required to start its 12 hole, 4,250 m drilling program at its Salar del Diablo property in Baja California. The company intends to test three geophysical anomalies, a geochemical anomaly, and structures that may trap and concentrate brines. The Salar del Diablo Property has never been drilled in the past.
  • Silver Spruce Resources Inc. released surface sample results from its Pino de Plata property in Chihuahua. The samples returned 19 gpt Ag, 16 gpt Ag, 2 gpt Ag, 1,1,30 gpt Ag, 123 gpt Ag, 95 gpt Ag and 255 gpt Ag; up to 0.19 gpt Au, up to 802 ppm Cu, up to 3.7% Pb on samples 0.2 to 1.0 m in length. The two targets in the area comprise El Terrero and the Gossan area. At El Terrero, a 32 hectares zone “of multiple flat-lying brecciated zones hosted by a zone of strong argillic alteration” is the target, while at the Gossan area a series of hornfels and skarns developed near an intrusive contact may host massive sulphide replacement bodies associated to structures.
  • Radius Gold Inc. reported the first results from the second diamond drill campaign at its Amalia project in Chihuahua. The program is operated by Radius and funded by Pan American Silver Corp. under a JV agreement by Which Pan American can earn an initial 65% by making cash payments totaling US$1.5 M (of which US$100 K have been paid) and spending US$2 M on exploration over four years. The first hole in this campaign intersected 44 m @ 12.38 gpt Au, 309 gpt Ag, including 11 m @ 39.9 gpt Au, 323 gpt Ag. The estimated true width of the zone is 34 m, consisting of “an epithermal breccia and quartz sulphide stockwork vein zone ” located on or near to the contact between overlying Tertiary rhyolitic ignimbrite and the footwall andesite volcaniclastics of the Late Cretaceous Tarahumara Formation. Diorite dykes appear to be emplaced along the fault zone and are associated with mineralization”.
  • Minaurum Gold Inc. staked an additional 20,872 hectares on its Alamos project in Sonora. Additionally, mapping has revealed four new vein zones: Rosario, La Dura Oeste, La Dura and La Tijera. These four zones bring the total of veins zones of the district to twenty. The Rosario vein has been traced for 500 m, with samples assaying 304 gpt Ag and 227 gpt Ag over 1 m and 675 gpt Ag, 1.0% Cu, 0.9% Pb over 2 m. The La Dura Oeste vein has been traced for 550 m, returning assays of 30 gpt Ag, 3.4% Cu and 37 gpt Ag, 4.3% Pb. La Dura vein  returned 123 gpt Ag, 2.% Cu over 0.5 m. La Tijera vein was traced for 750 m, with three samples returning 23- 36 gpt Ag, 0.41 – 0.77% Cu, up to 0.1% Pb, up to 0.15% Zn over 0.1 to 0.3 m.
  • Kootenay Silver Inc. has initiated the road construction for the drilling of its Columba property in Chihuahua. The property covers a low sulphidation epithermal system with numerous veins ranging on 200 m to up to 2 km of strike length. Over 1,000 m of underground workings are present, including four shafts and six drifts, with historic records indicating grades between 600 and 900 gpt Ag.
  • GoGold Resources Inc. released results from its recently acquired Los Ricos property in Jalisco. Highlighted diamond drill results comprise 22.4 m @ 4.13 gpt Au, 182 gpt Ag (or 6.55 gpt AuEq), including 3.0 m @ 25.08 gpt Au, 534 gpt Ag (or 32.2 gpt AuEq) and 11.7 m @ 0.68 gpt Au, 89 gpt Ag (or 1.87 gpt Au), including 6.1 m @ 0.58 gpt Au, 142 gpt Ag (or 2.47 gpt AuEq). The campaign is focused on defining the mineralized halo around the ore shoots defined by 65 historical reverse circulation holes. Over six thousand assays from channel samples are being digitized from underground working, to aid with deeper drill planning.

ON MINING

  • Consolidated Zinc Ltd. released its March 2019 quarterly activities report. During the period its Plomosas mine in Chihuahua produced 11,267 tonnes @ 10.7% Zn, 2.5% Pb, while 12,992 tonnes were processed @ 10.9% Zn, 2.0% Pb, 18 gpt Ag, recovering 87.5% Zn, 84.9% Pb at cash cost $1.11 per Lb Zn. The company also informed on a surface access legal proceedings that seek to nullify the current surface access contract.  
  •  Americas Silver Corp. announced production and operating cost results for the first quarter of 2019, including figures of its Mexican operations. At its Cosalá operations in Sinaloa, 152.6 K tonnes were processed @ 57 gpt Ag, to produce 173.2 K Oz Ag, 11.3 M Lb Zn, 4.6 M Lb Pb (or 1.32 M Oz AgEq), at cash cost $30.48 per Oz Ag and AISC $25.85 per Oz Ag.
  • Grupo Mexico S.A.B. de C.V. presented results for the first quarter of 2019. During the period the company produced 261,328 tonnes Cu, 5,145 tonnes Mo, 18,550 tonnes Zn, 3,13 M Oz Ag, 12,399 Oz Au and 0.58 M tonnes of sulphuric acid from its operations in Mexico, USA and Peru, at cash cost $1.13 per Lb Cu. A US$413 M budget was approved for the construction of a Zn concentrator at Cananea, Sonora, a project that is to generate 3,760 jobs. At San Martin, in Zacatecas, $87 M have been budgeted to re-open the mine, whereas at Pilares, in Sonora, an open pit mine is to produce ore @ 0.78% Cu to be treated at the La Caridad plant, six km away.
  • McEwen Mining Inc. reported its first quarter 2019 results, including figures from its Mexican operations. At El Gallo, in Sinaloa, 5,432 Oz AuEq were produced at cash cost $967 per Oz AuEq and an AISC $989 per Oz AuEq. “Mining ceased at El Gallo by the end of May 2018, and the mine continues to recover gold from residual leaching of the heap leach. During the quarter, the process plant underwent a small expansion to improve efficiency and enable faster gold recover”.
  • Premiere Gold Mine Ltd. reported its first quarter production for 2019. During the quarter the Mercedes mine in Sonora produced 17,614 Oz Au and 57,681 Oz Ag.
  • Argonaut Gold Inc. announced its operating and financial results for the first quarter 2019. At El Castillo, in Durango, working at a rate of 68 K tonnes per day (tpd), 3.8 M tonnes of waste were moved, 2.29 M tonnes of ore were mined and 2.33 M tonnes @ 0.39 gpt Au were placed on the leach pads, producing 28,210 Oz Au, 54,030 Oz Ag at cash cost $918 per Oz Au. At San Agustin, part of the El Castillo Complex, working at a rate of 33 K tonnes per day, 1.31 M tonnes of waste and 1.66 M tonnes of ore were moved, placing 1.69 M tonnes @ 0.47 gpt Au in the leach pads, producing 14,084 Oz Au, 54,030 Oz Ag at cash cost $867 per Oz Au. At La Colorada in Sonora, working at a rate of 76 K tpd, 5.97 M tonnes of waste and 872 K tonnes of ore were moved and 882 K tonnes were placed on the leach pads @ 0.44 gpt Au, producing 15,372 Oz Au, 54,773 Oz Ag at cash cost $952 per Oz Au. “The Company plans to invest between $50 million and $60 million in capital programs during 2019, of which approximately 30% was spent during the first quarter of 2019”
  • Coeur Mining Inc. reported first quarter 2019 financial results, including figures from its Mexico operations. At Palmarejo, in Chihuahua, 379 K tonnes were milled @ 2.18 gpt Au, 144 gpt Ag, recovering 86.4% Au, 72.8% Ag, to produce 23,205 Oz Au, 1.28 M Oz Ag. Costs applicable to sales (CAS) were $713 per Oz Au and $9.66 per Oz Ag.
  • Alamos Gold Inc. released its financial results for the first quarter 2019, including figures from its operations in Mexico. At Mulatos, in Sonora, 1.83 M tonnes of ore were mined, 1.98 M tonnes of waste moved, to place 1.87 M tonnes of ore on the leach pads @ 0.98 gpt Au, producing 38,900 Oz Au at cash cost $743 and mine site AISC of $809. At El Chanate, in Sonora, 5,800 Oz Au were produced at cash cost $1,193 per Oz Au and mine site AISC of $1,193 per Oz Au. Construction of the haulage road has commenced on the Cerro Pelon mine, near the Mulatos mine, with a 2019 budget of $25 M. Pre-stripping is expected to commence in the third quarter.
  • Excellon Resources Inc. announced first quarter 2019 results from the Platosa mine in Durango. During the period 20 K tonnes were mined, with 16.8 K tonnes of ore @ 534 gpt Ag, 5.01% Pb, 8.00% Zn and 1.45 K tonnes of historical stockpile processed @ 123 gpt Ag, 1.22% Pb, 1.44% Zn, recovering 89.7% Ag, 74.6% Pb, 78.1% Zn to produce 260.4 K Oz Ag, 1.38 M Lb Pb, 2.21 M Lb Zn.
  • Golden Minerals Co. announced financial results for Q1 2019. The company continues to advance the Yoquivo Au-Ag project in Chihuahua. The company has cash and cash equivalents of $2.2 M, with no debt.
  • Santacruz Silver Mining Ltd. reports on its financial and operating results for the 2018 fiscal year. During the year the company milled 211.4 K tonnes, recovering 815.3 K Oz AgEq at cash cost $36.8 per AgEq Oz and an AISC of $37.2 per AgEq Oz. At Veta Grande, Zacatecas, silver production was 514.4 K Oz. At Rosario, in San Luis Potosi, silver production was 300.9 K Oz Ag.  

ON FINANCING

  • First Mining Gold Corp. intends to complete a non-brokered private placement for aggregate proceeds of up to $6 M. (San Ricardo, Sonora; Lachatao, Oaxaca).
  • Prize Mining Corp. intends to raise up to $1.5 M by means of non-brokered private placement (Manto Negro, Coahuila).
  • Leagold Mining Corp. received a binding underwriting commitment from a syndicate of lenders for a $200 M term loan and a $200 M revolving credit facility. “These loans will be used to repay current debt and finance the Company’s growth” (Los Filos, Guerrero).

ON RESOURCES AND DEVELOPMENT

  • No Relevant News.  

ON DEALS AND CORPORATE ISSUES

  • Alio Gold Inc. received a notice of civil claim from a former shareholder of Rye Patch Gold Corp. whose shares were acquired by the company on May 2018.  (San Francisco, Sonora).
  • Silver Bull Resources Inc. informed that South 32 is to maintain its option on the Sierra Mojada project by funding an additional US$3 M in exploration. “This will result in aggregate funding of US$6 million at the completion of the second year of the joint venture option”. To maintain the option, South32 must contribute minimum exploration funding of US$10 M during a four year option period with minimum aggregate exploration funding of US$3 M, US$6 M and US$8 M to be made by the end of years 1, 2 and 3 of the option period respectively.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the image below, quartz-chalcopyrite veinlet hosted by an intrusive rock in core from a project in Michoacan. Picture by Jorge Cirett.

Highlights on the Second Week of July, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 28th week of the year (July 9th to July 15th, 2018), at least 23 press releases were announced by companies working in Mexico. Three companies updated on exploration advances. one company announced a financing round while another tries to extend the period for exercise of warrants. Seven companies released Q2 production results and two others a PEA on its properties. Seven companies released advances on the development or exploration of their resource base, and finally one company announced the appointment of its Vice-president Exploration and one other company the optioning of a property to a third party, and returning another to the underlying owner. ON MEXICO ISSUES, No relevant news. ON EXPLORATION, In Sonora, Ridgestone Mining completed an IP survey on its Rebeico property. In Chihuahua Golden Goliath resumed exploration on its San Timoteo project, and in Veracruz Mexican Gold released rock chip sampling results from its Las Minas project.  ON MINING Torex Gold, Endeavour Silver, Great Panther, Capstone, Excellon, Premier Gold and Hecla released second quarter results on production. Sierra Metals released a PEA on a projected production increment at its Bolivar mine in Chihuahua.  ON FINANCING, Prize Mining closed the first tranche of a non-brokered private placement. Candente Gold applied to extend the expiration period of warrants issued on a previous financing. ON RESOURCES AND DEVELOPMENT, Santacruz Silver, SilverCrest, Avino Silver, Kootenay Silver and Golden Minerals released drilling or exploration results on their properties with resources. Orla Mining released a PEA on its Camino Rojo Property in Zacatecas. ON DEALS AND CORPORATE ISSUES, Discovery Metals announced the appointment of Gernot Wober as VP Exploration. Riverside Resources optioned its La Silla property (in Sinaloa) to Sinaloa Resources, and returned the Glor property (in Sonora) to underlying owner Argonaut Gold, after two unsuccessful drill campaigns by Centerra Gold.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • Golden Goliath Resources Ltd. reported the commencement of its summer exploration program at its San Timoteo property in the Uruachic district of Chihuahua. San Timoteo hosts the longest mining tunnel in the district, with mapping and sampling having defined three ore shoots and a manto horizon within it. No exploration has been carried below the level of the tunnel, and the workings are interpreted to be above the boiling zone of an epithermal system, hence the possibility of potential bonanza grades down dip.
  • Mexican Gold Corp. released high grade sampling results from the Pueblo Nuevo area of its Las Minas projects in Veracruz. Multiple new vein occurrences have been discovered in the Pueblo Nuevo Valley structural corridor. The veins “show characteristics of mesothermal quartz veins”, generally 20 to cm in width, sub-vertical dips and no post mineral deformation. The dioritic host rock displays argillic alteration and sulfides up to one meter on each side of the veins. Chip sampling results include 0.43 m @ 7.87 g/t Au, 74 g/t Ag, 3.5% Zn; 0.30 m @ 6.14 g/t Au, 60 g/t Ag, 5.3% Zn; 0.50 m @ 19.18 g/t Au, 229 g/t Ag, 2.25% Zn; 0.3 m @ 4.33 g/t Au, 30 g/t Ag, 1.1% Zn; 0.15 m @ 16.17 g/t Au, 101 g/t Ag, 0.6% Cu, 14.6% Zn; 0.60 m @ 3.18 g/t Au, 17 g/t Ag, 3.5% Zn; 0.40 m @ 4.11 g/t Au, 22 g/t Ag; 0.45 m @ 19.41 g/t Au, 148 g/t Ag, 1.5% Cu, 0.8% Zn; 0.60 m @ 19.26 g/t Au, 70 g/t Ag, 2.3% Zn; 0.75 m @ 10.12 g/t Au, 30 g/t Ag.
  • Ridgestone Mining Inc. completed an induced polarization (IP) geophysical survey at its Rebeico Au-Cu project in Sonora. The survey comprised nine lines of IP, each 2 km long, for a total of 18 line kilometers spaced 200 m apart, covering an area of 1.6 by 2.0 km. Ridgestone has an option to acquire 100% interest in the project (subject to a 2% NSR) from YQ Gold de Mexico S. de R.L. (a Mexican corporation). The property covers 167 hectares, and includes the Alaska mine, which has old workings of up to 70 m of depth.

ON MINING

  • Torex Gold Resources Inc. released second quarter production results for 2018, period during which 80 K Oz Au were produced at its Limon-Guajes mine in Guerrero. Production has been ramping up, with 9 K tones per day (tpd) on April, 11 K tpd on May and 13 K tpd on June. The SART plant produced its first copper precipitate, with the operations team now taking the plant to full production. The updated technical report on El Limon-Guajes and Media Luna project is to be completed in late July/early August.
  • Sierra Metals Inc. announced the results of a preliminary economic assessment (PEA) on its Bolivar mine in Chihuahua, with the report being filed within 45 days. The PEA includes a net present value (NPV) of US$214 M at 8% discount rate, a return on investment (ROI) of 550%, on 3-4 years payback period and a net after-tax cash flow of US$303 M. The plant is to process 5 K tpd at recovery rate of 85% Cu to produce 252.5 M Lb Cu on 11 years of mine life on the existing mineral resource estimate. The longhole stoping method is to be used for mining.
  • Endeavour Silver Corp. reported production results for the second quarter 2018. At Guanaceví, in Durango, 71.3 K tonnes were produced @ 225 g/t Ag, 0.67 g/t Au, recovering 90.2% Ag, 92.7% Au to obtain 464.9 K Oz Ag, 1,423 Oz Au. At Bolañitos, in Guanajuato, 108.5 K tonnes were milled @ 91 g/t Ag, 1.82 g/t Au, recovering 78.3% Ag, 82.3% Au, to obtain 248.6 K Oz Ag, 5,222 Oz Au. At El Cubo, in Guanajuato, 134.5 K tonnes were milled @ 171 g/t Ag, 1.92 g/t Au, recovering 86.8% Ag, 84.6% Au, to obtain 642.4 K Oz Ag, 7,029 Oz Au. Consolidated production was 1,355.9 K Oz Ag, 13,674 Oz Au. The El Compas mine in Zacatecas is on track to commence commercial production by the end of July at the target capacity of 250 tpd.
  • Great Panther Silver Mines Ltd. reported production results for the second quarter 2018. At the Guanajuato Mine Complex, in Guanajuato, 77 K tonnes were processed @ 127 g/t Ag, 2.40 g/t Au, recovering 87.7% Ag, 88.2% Au to obtain 276.6 K Oz Ag, 5,240 Oz Au. At Topia, in Durango, 18.1 K tonnes were milled @ 371 g/t Ag, 0.69 g/t Au, recovering 93.9% Ag, 63.1% Au, to obtain 203.1 K Oz Ag, 253 Oz Au. Consolidated production of 95.2 K tonnes milled produced 479.8 K Oz Ag, 5,492 Oz Au, 480 tonnes Pb, 528 tonnes Zn.
  • Capstone Mining Corp. released production results for the second quarter of 2018, including figures from its Mexican operations. At Cozamin, in Zacatecas, 227.6 K tonnes were mined, 224.2 K tonnes milled (4,464 tpd) @ 1.66 % Cu, 1.04% Zn, 0.29% Pb, 45.3 g/t Ag. Recovery was 94.6% Cu, 66.4% Zn, 48.1% Pb, 77.5% Ag, to produce 13,581 tonnes of copper concentrate @ 25.9% Cu, 517 g/t Ag; 3,529 tonnes of zinc concentrate @ 47.5% Zn and 494 tonnes of lead concentrate @ 62.3% Pb, 1,717 g/t Ag.
  • Excellon Resources Inc. announced second quarter 2018 production results from its Platosa mine in Durango. Silver equivalent (AgEq) production increased 120% to 637.2 K Oz AgEq on Q2 2017 figures. 16.1 K tonnes were mined, 22.9 K tonnes milled @ 415 g/t Ag, 4.6% Pb, 6.7% Zn with recoveries of 89.6% Ag, 80.2% Pb, 82.2% Zn to produce 277.7 K Oz Ag, 1.85 M Lb Pb, 2.81 M Lb Zn, or 637.2 K Oz AgEq. Low-grade historical stockpiles and sump material with minimal associated mining cost continued to be processed. An AISC of less than $10 per Ag Oz was achieved.
  • Premier Gold Mines Ltd. released second quarter 2018 production results, including figures from its operations in Mexico. At Mercedes, in Sonora, 13,780 Oz Au, 44,366 Oz Ag were produced during the period. Production was impacted through the first half of the year owing to delays in the development of the Diluvio and Rey de Oro deposits. “Reinterpretation of the Diluvio ore shapes required changes to the stope designs. Mining in Rey de Oro was delayed by permitting requirements for the ventilation system”.
  • Hecla Mining Co. released preliminary results for the second quarter of 2018, including figures from its Mexican operations. At San Sebastian in Durango, 0.6 M Oz Ag, 3,872 Oz Au were produced in the period. The mill operated at an average of 415 tpd.

ON FINANCING

  • Prize Mining Corp. closed the first tranche of its non-brokered private placement for gross proceeds of $6.5 M. No finder’s fees were paid as part of this transaction. (Mercedes, Sonora).
  • Candente Gold Corp. has applied to extend the exercise period of 5 M outstanding share purchase warrants issued at a private placement in August 2016. “The original expiry date was August 12, 2018 and if the extension is approved, the new expiration date will be August 12, 2020”.

ON RESOURCES AND DEVELOPMENT

  • Sierra Metals Inc. released a new mineral reserve estimate on the new PEA on its Bolivar mine in Chihuahua. The Cu-Zn skarn (with Ag and Au credits). “Mineralization exhibits strong stratigraphic control and two stratigraphic horizons host the bulk of the mineralization: an upper calcic horizon, which predominantly hosts Zn-rich mineralization, and a lower dolomitic horizon, which predominantly hosts Cu-rich mineralization”. The indicated resources display 13.26 Mt @ 22.5 g/t Ag, 0.29 g/t Au, 1.04% Cu containing 9.6 M Oz Ag, 124 K Oz Au, 137.5 K tonnes Cu, and the inferred resources 8 M tonnes @ 22.4 g/t Ag, 0.42 g/t Au, 0.96% Cu containing 5.8 M Oz Ag, 109 Oz Au, 76.8 K tonnes Cu.
  • Santacruz Silver Mining Ltd. Reported initial phase I drill results from the Garcia and Armado veins on its Veta Grande project in Zacatecas. Ten drill holes totaling 3,323 m of core drilling have been completed, having received results on the first six holes. Some highlighted true width intervals: 1.0 m @ 0.05 g/t Au, 209 g/t Ag; 0.32 m @ 0.37 g/t Au, 312 g/t Ag; 4 m @ 0.06 g/t Au, 168 g/t Ag; 0.95 m @ 1.36 g/t Au, 235 g/t Ag, 7.5% Pb, 8.7% Zn, 0.2% Cu; 0.65 m @ 292 g/t Ag; 0.88 m @ 1.73 g/t Au, 34 g/t Ag.
  • SilverCrest Metals Inc. released further phase III drill results for the Las Chispas property in Sonora. Highlighted intervals on the Babicanora vein: 2.0 m @ 0.87 g/t Au, 269 g/t Ag; 2.5 m @ 6.04 g/t Au, 369 g/t Ag (including (0.8 m @ 14.95 g/t Au, 742 g/t Ag); 0.6 m @ 2.19 g/t Au, 63 g/t Ag. Highlighted intervals on the Babicanora footwall vein include: 5 m @ 54.59 g7t Au 6,535 g/t Ag (including 0.5 m @ 183.50 g/t Au, 21,858 g/t Ag); 2.3 m @ 4.07 g/t Au, 436 g/t Ag; 0.9 m @ 1.15 g/t Au, 151 g/t Ag. The sub parallel Babicanora FW vein high-grade footprint has now been traced for 250 m on strike.
  • Avino Silver Gold Mines Ltd. released drill results from the Chirumbo and Guadalupe areas of the Avino property in Durango. Avino vein highlighted core length intersects include 15.4 m @ 0.20 g/t Au, 129 g/t Ag, 0.64% Cu; 42.75 m @ 0.45 g/t Au, 46 g/t Ag, 0.44% Cu; 15.85 m @ 4.13 g/t Au, 20 g/t Ag, 0.07% Cu; 7.35 m @ 0.36 g/t Au, 47 g/t Ag, 0.33% Cu; 6.0 m @ 0.09 g/t Au, 202 g/t Ag, 0.64% Cu. Highlighted Guadalupe vein results include 0.60 m @ 1.38 g/t Au, 90 g/t Ag, 0.76% Cu; 1.50 m @ 4.79 g/t Au, 11 g/t Ag, 0.05% Cu; 3.75 m @ 0.32 g/t Au, 171 g/t Ag, 0.1% Cu; 1.60 m @ 0.23 g/t Au, 84 g/t Ag, 0.28% Cu; 5.20 m @ 0.07 g/t Au, 26 g/t Ag, 0.34% Cu; 3.90 m @ 0.33 g/t Au, 129 g/t Ag, 0.75% Cu. The Guadalupe vein has shown to extend along 800 m and to a depth of 250 m. Avino is planning a new drill program targeting the Aguila Mexicana vein system, which is one of the strongest and widest structures on the property.
  • Kootenay Silver Inc. released the results of eight core holes from its La Cigarra property in Chihuahua. The holes tested parts of the Las Carolinas, La Borracha and La Nogalera zones, returning medium to high grade silver intercepts in all areas. Highlighted results include: At La Borracha 12.37 m @ 33 g/t Ag, 0.05 g/t Au, 0.2% Pb, 0.2% Zn; At La Nogalera 1.78 m @ 48 g/t Ag, 0.72 g/t Au; 4.0 m @ 736 g/t Ag, 0.09 g/t Au, 0.3% Pb, 0.1% Zn; At Las Carolinas 14.0 m @ 79 g/t Ag, 0.03 g/t Au (including 6.79 m @ 144 g/t Ag, 0.05 g/t Au; 41.38 m @ 45 g/t Ag, 0.03 g/t Au.
  • Golden Minerals Co. disclosed that surface mapping and sampling identified the eastern extension to the Santa Maria vein at the Santa Maria project in Chihuahua. Several other veins were also discovered in the adjacent Cervantes concessions in an exploration exercise on which 542 rock chip samples were collected. The Santa Maria vein occurs as a series of quartz-calcite veins up to 4.5 m in width, returning assays as high as 0.6 g/t Au, 347 g/t Ag, 1.2% Zn. The Cervantes quartz-calcite vein system occurs 800 m east of the current resource area, for 700 m of strike length, returning up to 1.6 g/t Au, 207 g/t Ag, 0.24% Cu, 5.6% Pb, 19.5% Zn over widths of up to 1.3 m. Golden estimates completing the PEA during the third quarter of 2018.
  • Orla Mining Ltd. filed a preliminary economic assessment (PEA) on its Camino Rojo property, Zacatecas. The PEA visualizes a technically simple open pit mine and heap-leach operation with low capital and operating costs, “rapid payback and strong financial performance”. The project envisages a 3.3 payback period, working at a 18 K tpd rate that would place 42.5 M tonnes of material on the heaps @ 0.71 g/t Au, 13.6 g/t Ag (966 K Oz Au, 18.5 M Oz Ag), with a recovery rate of 67% Au and 15% Ag, producing 97,500 Oz/year at an All-in sustaining cost of $555 Oz/Au.

ON DEALS AND CORPORATE ISSUES

  • Discovery Metals Corp. announced the appointment of Gernot Wober as its Vice-President Exploration (Puerto Rico, Coahuila).
  • Riverside Resources Inc. and Sinaloa Resources Inc. signed a letter of intent (LOI) whereby Sinaloa Resources can earn up to 100% interest in Riverside’s La Silla project in Sinaloa. The initial option to earn 70% lies on Sinaloa issuing shares for $1 M, $60K in cash payments and exploration work commitments of $3 M over 36 months. To earn an additional 30% Sinaloa must spend a further $1 M in exploration and issue Riverside $500 K in shares. Riverside is to retain a 2.5% NSR if Riverside’s interest reduces to less than 10%. Previous work in the 2,071 hectares project includes 6 drill holes on the El Roble system, with intersects of up to 15 m @ 6.9 g/t Au.
  • Riverside Resources Inc. announced that drilling assays from two campaigns funded by Centerra Gold Inc. returned insufficient mineralized thickness and continuity to justify further exploration on the Glor project in Sonora. Riverside believes it has tested the best targets on the property and has terminated the underlying option earn-in agreement with Argonaut Gold.

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, structure in fine grained sedimentary rocks with iron oxides and minor quartz veining, greenish clays on the walls. From a shallow epithermal system in Guanajuato. Picture by Jorge Cirett

Highlights on the First Week of May, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 18th week of the year (April 30th to May 6th, 2018), at least 21 press releases were announced by companies working in Mexico, with news on the exploration of eight properties, eight more companies releasing Q1 2018 results, and Primero Mining extending its revolving credit facility. ON MEXICO ISSUES, production statistics for the mining sector on February 2018 were published. ON EXPLORATION, In Sonora, Azure updated on exploration efforts at its Oposura, Alacrán and Sara Alicia projects; Alamos Gold presented exploration plans on the Mulatos district; San Marco Resources obtained the Suanse property by lottery. In Coahuila, Discovery Metals disclosed underground channel sample results from its Puerto Rico property; Silver Bull acquired a 60 ha claim within its large land package in Sierra Mojada. In Veracruz, Mexican Gold released channel sampling results from the Changaro zone at its Las Minas project. ON MINING, Argonaut Gold, Santacruz Silver, Gold Resource, Alamos Gold, Golden Minerals, Leagold, Great Panther and Telson Mining presented Q1 2018 production reports. ON FINANCING, Primero Mining agreed on the extension of its revolving credit facility. ON RESOURCES AND DEVELOPMENT, Golden Minerals released drill results from its Santa Maria property in Chihuahua. Argonaut updated on exploration in properties in Guanajuato and Baja. Minera Alamos announced drilling plans on the now combined Santana/Los Verdes properties.  ON DEALS AND CORPORATE ISSUES, Endeavour Silver released its annual review and sustainability report. Advance Gold contracted a third party to assist with investors relations.

ON MEXICO ISSUES

  • The mining and metallurgic production in Mexico grew 4% in February, which is the best result since April 2016, although in a yearly basis a 1.3% decrement was recorded. During February, the production of lead (-34.6%), sulphur (-12.2%), silver (-11.3%), copper (-8.2%) and coke (-5.7%) decreased, while that of iron pellets (1.1%), fluorite (1.7%) zinc (4.6%), gold (5.8%), coal (18.8%) and gypsum (19.2%) showed an increment. Sonora was the leader in gold production during February, with 3,710 Kg (119,720 Oz), while Zacatecas  kept the title in silver with 171,903 Kg (5,526,806 Oz).

ON EXPLORATION

  • Azure Minerals Ltd. completed the mineral resource drill-out of the Oposura project, in Sonora. The program included 157 holes totaling 10,112 m (assays for 27 holes still awaited), confirming good height (width) and grade continuity of the horizontal mineralization. Metallurgical studies show 85.6% Zn and 84.0% Pb recoveries. The initial mineral resource estimate is expected in June 2018.
  • Azure Minerals Ltd. completed the stage 2 drilling program at its Sara Alicia Au-Co project in Sonora. Results awaited.
  • Azure Minerals Ltd. informed the operator of its Alacrán project in Sonora, Minera Teck, S.A., completed an 11 hole drill program in December 2017, with final results awaited. Teck has informed it will continue with the year 2 work program “comprising further geological, geochemical and geophysical surveys in the first half of 2018, which will be followed by more drilling in the second half of the year”.
  • Discovery Metals Corp. disclosed assay results from continuous underground channel sampling at its Puerto Rico project in Coahuila. Results on 100 samples out of 600 samples collected on the Zaragoza mine have been received. Select significant channel samples include: 2.1 m @ 822 g/t Ag, 2.1% Zn, 2.5% Pb, 0.7% Cu; 1.8 m @ 55 g/t Ag, 27.9% Zn, 2.9% Pb, 0.1% Cu; 3.3 m @ 175 g/t Ag, 2.1% Zn, 15.2% Pb, 0.2% Cu; 2.3 m @ 62 g/t Ag, 9.2% Zn, 6.5% Pb, 0.1% Cu; 1.3 m @ 75 g/t Ag, 16.8% Zn, 3.2% Pb, 0.1% Cu. Average manto grades 157 g/t Ag, 6.2% Zn, 5.5% Pb, 0.1% Cu.
  • Mexican Gold Corp. released channel sampling results from the La Perdida mine in the Changaro zone at its Las Minas project in Veracruz. At La Perdida adit, four 2.0 m samples returned 7.85 g/t Au, 3 g/t Ag, 0.14% Cu; 0.30 g/t Au, 1 g/t Ag, 0.05% Cu; 16.70 g/t Au, 12 g/t Ag, 0.49% Cu; 27.30 g/t Au, 12 g/t Ag, 0.17% Cu, averaging 8.0 m @ 13.04 g/t Au, 7 g/t Ag, 0.21% Cu.
  • Alamos Gold Inc. informed exploration in its 28,777 ha land package at Mulatos, Sonora, is to focus in 2018 outside the Mulatos mine, including the El Carricito, El Halcon, and El Jaspe areas. During the first quarter Alamos invested $4.5 M in exploration activities within the Mulatos district, including 14,792 m of diamond drilling and 1,059 m of RC drilling.
  • Silver Bull Resources Inc. acquired a 68 ha mineral license nine kilometers NW from its main Sierra Mojada deposit in Coahuila. The application “covers 13 historical mine shafts in the Palomas Negros area including a 120 meter long x 25 meter wide x 25 meter deep historical open pit”. Select sampling on the open pit returned up to 542 g/t Ag, 36.5% Zn, 9.3% Pb, 0.14% Cu on 2 m channel sampling.
  • San Marco Resources Inc. obtained the Suanse property in Sonora through the recent mineral concession lottery by the Mexican government. The property is located between two mineral concessions within Evrim’s LLano del Nogal porphyry copper moly play.

ON MINING

  • Argonaut Gold Inc. presented first quarter 2018 operating and financial results. At El Castillo in Durango, 4.72 M tonnes of waste were moved, 1.62 M tonnes of ore were mined (52 K tonnes per day, or tpd) @ 0.44 g/t Au, producing 8,657 Oz Au, 7,528 Oz Ag. At San Agustin in Durango, 356 K tonnes of waste were moved 1.72 M tonnes of ore mined (23 K tpd) @ 0.50 g/t Au, producing 15,824 Oz Au, 80,331 Oz Ag. Cash cost was $1,020 for El Castillo and $365 for San Agustín. At La Colorada in Sonora, 6.13 M tonnes of waste were moved, 1.1 tonnes of ore mined (80 K tpd) @ 0.43 g/t Au, producing 14,291 Oz Au, 57,767 Oz Ag at cash cost $726. Cash and cash equivalents of $21.3 M at the end of the period.
  • Santacruz Silver Mining Ltd. reported financial and operating results for Q4 2018. During the period 181 K tonnes were processed, producing 865.5 K Oz AgEq at cash cost $23.07 and AISC $27.56 per AgEq Oz.
  • Gold Resource Corp. reported first quarter 2018 production results. During the period the company produced from three different orebodies on its El Aguila property in Oaxaca. At Arista 130.8 K tonnes were milled @ 1.92 g/t Au, 106 g/t Ag, 0.39% Cu, 1.63% Pb, 4.41% Zn, with recoveries of 78% Au, 91% Ag, 75% Cu, 76% Pb, 83% Zn. At the El Aguila open pit, 5.1 K tonnes were milled @ 2.16 g/t Au, 45 g/t Ag, and recoveries of 84% Ag, 86% Ag. At Altagracia 3.2 k tonnes were milled @ 1.16 g/t Au, 182 g/t Ag, and recoveries of 60% Au, 82% Ag. Production amounted to 6,647 Oz Au, 425.9 K Oz Ag, 385 tonnes Cu, 1,615 tonnes Pb, 4,793 tonnes Zn. Cash cost was ($316) per AuEq Oz after by-product credits, and AISC $347 per precious metal gold equivalent ounce sold. Cash and cash equivalents at quarter end totaled $28.6 M.
  • Alamos Gold Inc. reported its financial results for the first quarter 2018, including figures from its Mexican operations. At Mulatos in Sonora, 2.2 M tonnes were mined and 2 M tonnes of waste moved. Average grade of 1.75 M tonnes stacked was 0.84 g/t Au. As for high grade, 30.4 k tonnes were milled @ 8.11 g/t Au, for the production of 46,000 Oz Au at cash cost $786 per OZ Au, and AISC $842 per Oz Au. At El Chanate in Sonora, 1 M tonnes of ore were mined @ 0.60 g/t Au, with recoveries of 71% Au, to produce 13,800 Oz Au.
  • Golden Minerals Co. provided business and financial results for the first quarter 2018. During the period Golden received $1 M from Electrum Global Holdings, LP. in exchange for an amendment to the Electrum farm-out agreement providing Electrum an additional 20% interest in the Celaya project. Also 4,800 m in 22 holes were drilled on the Santa Maria property in Chihuahua. Cash and cash equivalents of $2.7 M at the end of the period.
  • Leagold Mining Corp. reported Q1 2018 production. During the period 7.7 M tonnes were moved on the open pit at Los Filos, Guerrero, of which 2.0 M tonnes were from ore @ 0.57 g/t Au. From underground 101 k tonnes were mined @ 5.47 g/t Au. In total 1.6 M tonnes were processed @ 0.97 g/t Au to produce 51,003 Oz Au at cash cost $880 per Au Oz and AISC of 1,039 per Au Oz. Test mining at the Bermejal underground deposit is to begin in Q2 2018. Leagold’s goal is to raise quarterly production from 50 K to almost 70 K by the end of the year.
  • Great Panther Silver Ltd. presented first quarter 2018 financial results, including figures from its operations in Mexico (Topia, Durango; Guanajuato mine complex, Guanajuato). Consolidated production came from 96.9 K tonnes milled, to obtain 491 K Oz Ag, 5,831 Oz Au at cash cost $12.76 per AgEq Oz and AISC $16.16 per AgEq Oz. For 2018 14,000 m of underground drilling are planned at the Guanajuato mines, and 5,000 m of surface drilling and 5,000 of underground drilling in the San Ignacio mine (part of the mine complex). Cash and cash equivalents were $60.9 M at the end of the period.
  • Telson Mining Corp. informed on first quarter 2018 pre-production toll milling at its Tahuehueto property in Durango. During the period 9,503 tonnes of ore were milled @ 5.44 g/t Au, 62 g/t Ag, 4.5% Zn, 2.2% Pb, recovering 79.4% Au, 85.7% Pb, 84.4% Pb, 76.4% Zn to produce 360 tonnes of lead concentrate (50.2% Pb), 99.25 g/t Au, 1,185 g/t Ag, 12.2% Zn) and 713 tonnes of zinc concentrate (46.3% Zn, 7.41 g/t Au, 105 g/t Ag, 0.93% Pb).

ON FINANCING

  • Primero Mining Corp. agreed to the extension of its revolving credit facility and the related guarantee provided by Wheaton Precious Metals Corp., to May 15th, 2018 or the closing of the business combination with First Majestic Silver Corp. (San Dimas, Durango).

ON RESOURCES AND DEVELOPMENT

  • Golden Minerals Co. released results from the 2,400 m, 22-hole drilling program at its Santa Maria property in Chihuahua. Some of the highlighted true width (TW) results comprise: 0.6 m @ 593 g/t Ag, 0.79 g/t Au, 0.4% Pb+Zn; 0.8 m @ 183 g/t Ag, 0.33 g/t Au, 0.1% Pb+Zn; 2.5 m @ 415 g/t Ag, 0.29 g/t Au, 1.5% Pb+Zn; 3.8 m @ 213 g/t Ag, 0.47 g/t Au, 0.8% Pb+Zn; 1.2 m @ 200 g/t Ag, 0.22 g/t Au, 0.15% Pb+Zn; 3.5 m @ 310 g/t Ag, 0.77 g/t Au, 1.3% Pb+Zn; 1.3 m @ 1,322 g/t Ag, 2.06 g/t Au, 1.4% Pb+Zn; 0.9 m @ 148 g/t Ag, 2.0 g/t Au, 1.5% Pb+Zn; 6.5 m @ 1,094 g/t Ag, 3.64 g/t Au, 1.3% Pb+Zn. The mineralization comprised oxide, mixed and sulfide materials in different intersects.
  • Argonaut Gold Inc. informed the re-logging of drill core and the development of a geological model at Cerro del Gallo, in Guanajuato. On its San Antonio project in Baja California Sur, technical sessions were held with the Mexican Environmental Authority DGIRA in preparation of new future Environmental Assessment application submittal.
  • Minera Alamos Inc. released its plans for a drilling campaign at the now combined Santana/Los Verdes property in Sonora. The phase one is to include 20 holes in 3,000 m of drilling, focusing on the Nicho extensions and Nicho Norte, into the contiguous Los Verdes claims. Previous drilling at the Santana project outlined significant mineralization associated to hydrothermal breccias hosted by stocks and batholithic intrusions. Heap leaching tests are being conducted on the Nicho Norte zone.

ON DEALS AND CORPORATE ISSUES

  • Endeavour Silver Corp. released its annual review and sustainability report. Sections of the report include: Safety and Health, Our People, Community, Environment, Economic. In words of its CEO, Bradford Cooke: “..is intended to show that sustainability relies on the connectedness between people, communities and the environment” (La Colorada, Sonora, El Castillo, Durango).
  • Advance Gold Corp. engaged Nicosia Capital to assist on Investor Relations. “Advance will pay Nicosia a fee of $3,500 per month and issue 100,000 stock options at a price of $0.12 per share. The initial agreement with Nicosia has a term of two months to commence May.1st, 2018” (Tabasqueña, Zacatecas).

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, Very strong silicification and minor silicification on structures from a shallow epithermal system in Guanajuato. Picture by Jorge Cirett.

Highlights on the First Week of November, 2017. Mineral Exploration in Mexico

During the 44th week of the year (October 30th to November 5th, 2017), at least 33 press releases were announced by companies working in Mexico, including nine quarterly reports. ON MEXICO ISSUES: No relevant news. ON EXPLORATION: seven companies informed on exploration efforts during the week: In Sonora SilverCrest informed on metallurgical test results from drill core material of its Las Chispas property; Riverside continues with ground magnetics, an IP survey and soil sampling on its Glor project, funded by Centerra; Minaurum released good drilling results from its Alamos property. In Chihuahua Golden Goliath continues exploration at San Timoteo; Prospero Silver prepares to drill its Bermudez project. In Sinaloa, Auxico released metallurgical results from its Zamora property. In Zacatecas Defiance Silver commenced a two rig drill campaign on the Veta Grande vein in its San Acacio project. ON MINING: Great Panther, Grupo Mexico, Endeavour Silver, Americas Silver, Excellon, Alamos Gold, McEwen Gold, Argonaut and First Majestic reported third quarter results. In Sonora, Corex Gold is testing different crushing sizes for the heaps, and received the first compensation for gold produced at its Santana property. In Zacatecas, Starcore removed all senior personnel from its Matehuala plant. ON FINANCING: San Marco completed a private placement for $1.26 M and Vangold is to raise up to $1.57 M with a non-brokered private placement. Telson signed a $15 M credit facility with Trafigura. GoGold is to repay a $46.5 M debt and a $7.5 M credit with the proceeds of the sale of Santa Gertrudis. ON RESOURCES AND DEVELOPMENT: Starcore highlighted the increase in resources, metallurgical testing and work on the scoping study on its Plomosas property. Almaden reported grades on one more in-fill hole at its Ixtaca property. Bacanora secured access to its Sonora property. Hecla provide high-grade exploration results on its San Sebastian mine.  ON DEALS AND CORPORATE ISSUES: Vangold executed the purchase agreement of land on its Pinguico property. GoGold announced the completion of the sale of the Santa Gertrudis project to Agnico Eagle.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • SilverCrest Metals Inc. disclosed results from initial metallurgical sampling of mineralization from its Las Chispas property in Sonora. These results show that Las Chispas mineralization appears to be amenable to standard cyanidation processing, with average recoveries of 98.9% Au, 86.6% Ag. Nineteen core samples were combined into three bulk composites, with partly oxidized and non-oxidized material. Further metallurgical test work is to be completed after the announcement of a maiden resource in Q1 2018.
  • Auxico Resources Canada Inc. released metallurgical results from a 2 Kg metallurgical sample from a volcanic breccia in the footwall of the Campanillas mine, at its Zamora property in Sinaloa. The test returned 13.8% Au, 8.6% Ag recovery by gravity, 67.8% Au, 89.1% recovery by flotation, for total recoveries of 71.6% Au, 92.9% Ag.
  • Defiance Silver Corp. commenced a two-rigs phase II 5,000 m drill core program targeting new high-grade silver shoots along 900 m of the Veta Grande vein, SE from the San Acacio deposit in Zacatecas.
  • Golden Goliath Resources Ltd. received a report on its San Timoteo property in Chihuahua. The report stresses the presence of several strong systems of mineralized structures with potential for bonanza zones and a deeper Cu-Au porphyry system. Known zones within the Level 5 of the San Timoteo vein contain a 78 m long shoot @ 0.6 g/t Au, 68 g/t Ag and a 32 m long shoot @ 0.3 g/t Au, 212 g/t Ag.
  • Riverside Resources Inc. updated on exploration work in progress at its Glor property in Sonora, alongside its partner Centerra Gold Inc.. The work is focusing on the central part of the property, where samples of up to 14 g/t Au have been collected, with a detailed ground magnetic survey covering 210 hectares with 80 line-kilometers, 14 line-kilometers on an induced polarization survey, and an 850 sample soil program.
  • Prospero Silver Corp. received all necessary permits to carry a first-pass drill program at Bermudez, in Chihuahua. Prospero can now proceed with a drilling campaign funded by Fortuna Silver Mines Inc. to test a low sulfidation epithermal vein system exposed over a 2.5 km by 50-100 m area. Anomalous Au, Ag, Ba and Zn, along with the quartz vein textures support the interpretation of this being a shallow zone in the epithermal system.
  • Minaurum Gold Inc. released results from the first five holes (1,342 m) at its Alamos project in Sonora. Relevant intercepts on the Promontorio vein: 20.15 m @ 154 g/t Ag, 0.23 g/t Au, 0.5% Cu, 2.3% Pb, 6.8% Zn; 8.50 m @ 81 g/t Ag, 0.13 g/t Au, 0.1% Cu, 3.2% Pb, 2.7% Zn; 3.15 M @ 322 g/t Ag, 0.28 g/t Au, 0.5% Cu, 1.6% Pb, 3.3% Zn. At the Blind Vein/Southern Nueva Europa target an interval of 0.25 m @ 8 g/t Ag, 0.9% Pb, 2.4% Zn validated the idea of blind veins on the area. At the Minas Nuevas target the 17.65 m @ 96 g/t Ag and 13.05 m @ 54 g/t Ag intercepts confirm the potential for bulk-tonnage orebodies.

ON MINING

  • Starcore International Mines Ltd. is changing its senior management and sales personnel at the Altiplano processing plant in Matehuala, San Luis Potosi. Operational duties will be assumed by existing Starcore management, assisted by the services of a newly appointed consultant specializing in the procurement of concentrates.
  • Great Panther Silver Ltd. reported financial results for the third quarter 2017. Consolidated production was 532.8 K Oz Ag, 5,848 Oz Au, at a cash cost of $12.37 per AgEq Oz and AISC of $16.42 per AgEq Oz. The company held $55.5 M of cash and short term deposits at the end of the period.
  • Grupo Mexico S.A.B. de C.V. presented its Q3 report for 2017. During the period the Buenavista expansion in Sonora was completed in time, and US$101 M under the budgeted US$3,265 M, increasing the Cu production from 180 K to 500 K tonnes per year. The crushing and conveyor belt system for leaching material was also finished on time and US$117 M below the US$444 M budget. At the Buenavista Zinc project, basic engineering has been completed and the detailed engineering phase commenced; this project is to produce 80 K tonnes of Zn and 20 K tonnes of Cu per year, starting on 2020. At Pilares, an open pit mine is to produce ore for the La Caridad mill; an investment of $159 M is expected, in order to produce 34.5 K tonnes of Cu/year by 2019. During the period, 262.7 K tonnes of copper (at cash cost US$1.08), 5,581 tonnes of moly, 18,857 tonnes of zinc, 3.6 M Oz Ag, 43,665 Oz Au, 717.6 K tonnes of sulfuric acid were produced.
  • Corex Gold Corp. received US$278.7 K from gold recovered from the first gold-in-carbon concentrate from the Santana heap-leach project in Sonora. The company is testing different crushing sizes for the ore material staked on the heaps.
  • Americas Silver Corp. announced financial and production results for the third quarter of 2017, including figures from its Mexican operations. At the Cosalá operations in Sinaloa, with ore from the Nuestra Señora, El Cajón and San Rafael mines 134.7 K tonnes were processed @ 74 g/t Ag, to produce 277.7 K Oz Ag, 1.43 M Lb Zn, 793 K Lb Pb, 507 K Lb Cu, or 528.8 AgEq Oz. The operations are transitioning from Nuestra Señora mine to the newly developed San Rafael mine, from where all the ore to be processed is expected to be mined during November. Cash cost and All-in sustaining cost was $3.16 per silver ounce. The company had $8.7 M in cash and cash equivalents at the end of the period.
  • Endeavour Silver Corp. presented its third quarter 2017 financial report. During the period 1.26 M Oz Ag, 13,648 Oz Au were produced at its Guanaceví (Durango), Bolañitos (Jalisco) and El Cubo (Guanajuato) at cash cost $11.74 per Oz Ag and AISC $17.53 per Oz Ag. Development commenced at El Compas mine in Zacatecas, where additional prospective ground was acquired, and permits were received for the mine and plant at Terronera, Jalisco. The company had $70.3 M at the end of the period.
  • Excellon Resources Inc. released its third quarter 2017 financial results. During the period its Platosa mine in Durango mined 18.1 K tonnes, processed 19.9 K tonnes @ 409 g/t Ag, 4.4% Pb, 6.1% Zn. Recoveries stood at 87.6% Ag, 81.8% Pb, 81.1% Zn, to produce 226.2 K Oz Ag, 1.58 M Lb Pb, 2.17 M Lb Zn, or 500.7 K AgEq ounces at cash ton per ton of $208, cash cost of $2.46 per Ag Oz and AISC of $11.62. The optimization plan has resulted in drier mining conditions and significantly improved the cash cost and AISC per Ag Oz produced. The company is currently applying to become a “qualified user” under the recent energy reforms, which will allow Excellon to access the private market for electricity, a key cost on the water pumping to maintain dry mining conditions.
  • Alamos Gold Inc. reported its financial results for the third quarter of 2017, including figures from its Mulatos and El Chante operations in Sonora. At Mulatos (including numbers from La Yaqui, which started commercial production in September first) 2.34 M tonnes of ore and 1.46 M tonnes of waste were mined from open pits, with 1.75 M tonnes @ 0.96 g/t Au stacked on the heaps, while 30.8 K tonnes milled from underground feed @ 10.05 g/t Au, to produce 36,300 Oz Au at cash cost $785 per Oz Au and mine-site AISC of $864 per Oz Au. At El Chanate 1.62 M tonnes of ore and 5.19 M tonnes of waste were mined (2.19 waste to ore ratio) @ 0.48 g/t Au, to produce 14,900 Oz Au at cash cost $1,137 per Oz Au and AISC $1,164 per Oz Au.
  • McEwen Mining Inc. reported consolidated financial results for Q3 2017, with figures from its Mexican operations. During the period 7,189 Oz Au were produced at its El Gallo property in Sinaloa. Production was impacted by the failure of the crushing circuit, impacting the amount of ore placed on the heaps. The failure to the crushing equipment has been corrected and a mobile crusher was added to speed up the placing of ore material on the heaps
  • Argonaut Gold Inc. released third quarter 2017 operating and financial results. At El Castillo in Durango 1.7 M tonnes of ore @ 0.28 g/t Au and 2.4 M tonnes of waste were moved (45 K tonnes per day, tpd, at a waste to ore ratio of 1.40) to produce 11,437 Oz Au and cash cost of $947 per Oz Au. At San Agustin in Durango, pre-commercial production included 1.3 M tonnes of ore and 303 K tonnes of waste moved, with 1.23 M tonnes @ 0.42 g/t Au placed to the pads, to recover 2,690 Oz Au, 16.9 K Oz Ag. At La Colorada in Sonora, 1.1 M tonnes of ore and 4.5 M tonnes of waste were moved (61 K tpd, waste to ore ratio of 4.11), placing 1.3 M tonnes @ 0.50 g/t Au on the heaps to produce 9,518 Oz Au, 21.7 K Oz Ag. Total production from these three mines in Mexico was 23,645 Oz Au, 38.6 K Oz Ag.
  • First Majestic Silver Corp. announced third quarter 2017 financial results. First Majestic has six mies in Mexico: Santa Elena in Sonora, La Escondida in Coahuila, La Parrilla in Durango, Del Toro in Zacatecas, San Martin in Jalisco and La Guitarra in Estado de Mexico. The consolidated production was 2.4 M Oz Ag, or 4.0 M Oz AgEq at a cash cost of $8.52 and AISC of $15.73 per Oz Ag. At the end of the period the company had $120.8 M in cash and cash equivalents, with $34.7 M in debt facilities.  First Majestic Q3 2017 production11

ON FINANCING

  • Vangold mining Corp. is to go ahead with a non-brokered private placement that can accrue up to $1.575 M in gross proceeds. The proceeds are to be used on its Pinguico property in Guanajuato, and for general working capital (Pinguico, Guanajuato).
  • Telson Resources Inc. signed a term sheet of a loan facility and off-take agreement with Trafigura Mexico S.A. de C.V., to sell 100% of the Pb and Zn concentrate produced at the Tahuehueto mine in Durango, from January 2018 to December 2022. Trafigura is to provide Telson a $15 M credit facility upon signing formal agreements.
  • San Marco Resources Inc. completed its previously announced private placement for gross proceeds of $1.26 M, with insiders of the company acquiring over 14% of the issued units. Finder’s fees of $52,283 were paid to four parties (Chunibas and 1068 project, Sonora).
  • Silver Spruce Resources Inc. closed its non-brokered private placement, raising gross proceeds of $132 K, paying $2.5 K as finder’s fee (Pino de Plata, Chihuahua).
  • GoGold Resources Inc. informed that after receiving US$80 M on the sale of its Santa Gertrudis project in Sonora is to use the proceeds to pay in full it’s outstanding US$46.5 M revolving credit facility with the Bank of Montreal and repay the principal and interest on the US$7.5 M loan advanced by Agnico. GoGold is debt free and has a strong cash balance (Parral tailings, Chihuahua).

ON RESOURCES AND DEVELOPMENT

  • Consolidated Zinc Ltd. presented its third quarter 2017 report, highlighting its activities at its Plomosas property in Chihuahua. During the period the mineral resource estimate was increased to 968 K tonnes @ 15.9% Zn+Pb, for 154 K tonnes of contained metal. Metallurgical test work from the Tres Amigos sulfide zone indicate Zn recoveries >90%. The Scoping Study (SS) is near completion, with focus on the Tres Amigos and Las Espadas zones. Additional high-grade Zn+Pb mineralization has been identified, and regional exploration re-commenced.
  • Almaden Minerals Ltd. released assay results from one of the holes from the resource infill drilling program at its Ixtaca deposit in Puebla. The hole returned 180 m @ 1.25 g/t Au, 54 g/t Ag, including 32.5 m @ 2.02 g/t Au, 109 g/t Ag; and 24.15 m @ 1.58 g/t Au, 103 g/t Ag; and 25.0 m @ 4.08 g/t Au, 92 g/t Ag.
  • Bacanora Minerals Ltd. announced that access and surface rights have been secured for its Sonora project in Sonora. “The access and surface rights mainly relate to the land area covering mineral resources contained within the La Ventana, Fleur and El Sauz areas”.
  • Hecla Mining Co. provided an update on its explorations programs, including information on its San Sebastian project in Durango, where three rigs were active on the Middle, Francine and West Francine veins. In-fill drilling on the Middle vein has returned continuous veins averaging 1.07 m (true width) @ 8.09 g/t Au, 1,708 g/t Ag; 1.34 m @ 5.91 g/t Au, 1,285 g/t Ag. New drilling 100 m west and down dip of current development has intercepted 1.22 m @ 0.62 g/t Au, 295 g/t Ag, 3% Cu, 2% Pb, 5% Zn; 1.65 m @ 2.18 g/t Au, 373 g/t Ag, 4% Cu, 6% Pb, 9% Zn. On the Francine vein, 182 m W from the Hugh resource area, two holes intersected 1.10 m @ 0.31 g/t Au, 886 g/t Ag, 6% Cu, 9% Pb, 14% Zn; 1.04 m @ 0.31 g/t Au, 613 g/t Ag; 3% Cu, 12% Pb, 13% Zn. A hole 750 m to the west of the Hugh zone intersected 3.66 m @ 0.31 g/t Au, 193 g/t Ag, 2% Cu, 3% Pb, 4% Zn. Drilling on the East Francine vein, 350 m east of existing workings, intercepted 3.90 m @ 0.3 g/t Au, 460 g/t Ag; drilling along the adjacent East Middle vein intersected 2.44 m @ 1.56 g/t Au, 236 g/t Ag.
  • Alamos Gold Inc. drilled 5,394 m in 42 holes at La Yaqui Grande Deposit in Sonora during the third quarter 2017. True width Intercepts from the zone 3 are believed to be 80-90% of the reported longitude of 35.6 m @ 3.07 g/t Au; 10.80 m @ 6.21 g/t Au; 12.5 m @ 0.88 g/t Au; 22.10 m @ 2.31 g/t Au; 21.3 m @ 1.71 g/t Au; 7.90 m @ 3.80 g/t Au; 5.90 m @ 3.15 g/t Au; 12.0 m @ 0.82 g/t Au; 11.10 m @ 1.88 g/t Au; 15.30 m @ 1.82 g/t Au; 20.0 m @ 1.24 g/t Au; 13.60 m @ 0.55 g/t Au. A number of new prospects are undergoing initial exploration in the 28,777 hectares land package that Alamos Gold holds in the Mulatos district.

ON DEALS AND CORPORATE ISSUES

  • Vangold Mining Corp. executed the land purchase agreement with two private land owners at its El Pinguico property in Guanajuato. The 302 hectares land package includes El Pinguico property and provides significant land area for mining infrastructure. Vangold is committed to pay two annual installments of CDN $4,500 with a final payment of CDN $65 K on the third anniversary.
  • GoGold Resources Inc. announced the completion of the sale to Agnico Eagle Mines Ltd. of the Santa Gertrudis project in Sonora. GoGold received total cash consideration of US$80 M and was granted a 2% NSR, of which 50% can be repurchased for US$7.5 M.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, argillitized porphyritic intrusive rock with minor quartz veining from a gold-copper prospect of the Durango Altiplano. Photo by Jorge Cirett.

Parrandera

Highlights on the Second Week of October, 2017. Mineral Exploration in Mexico

During the 41st week of the year (October 9th to October 15th, 2017), at least 24 press releases were announced by companies working in Mexico, including seven quarterly reports. ON MEXICO ISSUES: The Secretaría de Economía announced the liberation of over 195 K hectares of ground for staking. ON EXPLORATION: Eight companies disclosed exploration efforts during the week: In Sonora, Azure Minerals is about to start drilling its Oposura and Sara Alicia projects; Canuc Resources released underground and surface rock sampling results from its San Javier project; Colibri Resource released an exploration update of its Evelyn project; Silver Viper is drilling its Clemente project. In Sinaloa Chesapeake Gold commenced a 5,000 m drilling program focused in two prospects on its Yarely project. In Coahuila, Discovery Metals received the environmental permit to drill five of its projects; Silver Bull Resources released the results from the first two underground holes to test high grade structural feeders at its Sierra Mojada project. ON MINING: Endeavour Silver, Capstone Mining, Leagold Mining, Great Panther Silver, Alamos Gold, Gogold Resources and Alamos Gold reported preliminary third quarter results. Torex Gold signed a 25 year land agreement with the Puente Balsas Sur Ejido, needed for the exploration and operation of its Media Luna project in Guerrero. Telson Resources received the environmental permit for mine and related infrastructure on its Tahuehueto project in Durango.  ON FINANCING: Colibri Resources settled a $10 K debt by issuing shares to one of its directors. Sierra Metals entered into an open market agreement with a consortium to raise up to $55 M on the NYSE market. Fortuna Silver’s CEO bought approximately US$430 K shares of the company in the open market. Oroco Resources intends to complete a non-brokered private placement to raise up to $600 K. ON RESOURCES AND DEVELOPMENT: Fortuna Silver released exploration results from its San Jose property in Oaxaca, including high-grade drilling results. ON DEALS AND CORPORATE ISSUES: No Relevant news.

ON MEXICO ISSUES

  • The Secretaría de Economía (Bureau of Economy) released the long due and eagerly awaited second release of previously held land of 2017, ground that is now going to be open for mining concession applications. Over 44 K hectares of reduced land (from eleven concessions), 131 K hectares of abandoned concessions (95) and almost 20 K hectares of cancelled concessions (96) are to be available in one month for staking by individuals and corporations.

ON EXPLORATION

  • Azure Minerals Ltd. is about to start drilling at its Oposura and Sara Alicia projects in Sonora. The environmental permit has been granted for both projects. At Oposura a total of 7,000 m of drilling is planned in 120 holes on a 1,400 by 400 m area. At Sara Alicia geological mapping, rock chip channel sampling, gridded soil sampling, and initial target identification has been completed. A zone of high grade gold and cobalt with samples of up to 39 g/t Au and up to 6% Co has been identified and is to be drill tested with 5-6 holes for a total of 450-500 m of diamond core.
  • Canuc Resources Corp. reported high grade silver and gold from recent sampling of underground workings, and from the surface of the Carranza breccia zone at its San Javier project in Sonora. “Road construction, trenching and drill platform preparation have been completed and surface mapping and sampling are ongoing.” The focus is on the breccia zones found at the intersections of the two fault trends. Results include 0.5 m @ 10.3 g/t Au, 250 g/t Ag; 0.5 m @ 8.0 g/t Au, 246 g/t Ag; 1.23 m @ 6.0 g/t Au, 174 g/t Ag; 1.2 m @ 10.5 g/t Au, 220 g/t Ag; 1.6 m @ 9.5 g/t Au, 150 g/t Ag; 1.6 m @ 11.3 g/t Au, 100 g/t Ag; 0.9 m @ 5.1 g/t Au, 17,200 g/t Ag; 1.3 m @ 1.9 g/t Au, 6,230 g/t Ag; 1.4 m @ 2.0 g/t Au, 2,395 g/t Ag; 0.7 m @ 1.6 g/t Au, 150 g/t Ag; 2.5 m @ 1.1 g/t Au, 600 g/t Ag; 3.0 m @ 1.2 g/t Au, 470 g/t Ag.
  • Chesapeake Gold Corp. commenced a 5,000 m diamond drill program at its 68,000 has Yareli project in Sinaloa. The phase I program is to focus on the Central and Loretos prospects. “At Central prospect Initial drill holes will test the four subparallel north – northwest trending stockwork structures up to one kilometre in length and associated extensive breccia bodies..” At Loretos three widely spaced holes are planned to test the west side of a “V” shaped IP anomaly which is over 3 km long and one km wide.
  • Colibri Resource Corp. released a report on its 506 hectare Evelyn project in Sonora. Geological and structural mapping, as well as rock chip sampling were conducted. The property is underlain by Jurassic rhyolites, andesites and sandstones. Prospects highlighted include the Mine Working shear zone, the Cerro Rojo Fault and the Quartz Vein Swarm. Of 74 samples collected, 33 returned values greater than 0.1 g/t Au.
  • Discovery Metals Corp. received drill permits for five of its projects from the Mexican environmental regulator, SEMARNAT. These permits cover the La Kika, Renata, Santa Rosa, La Minerva, and Jemi-Rare projects in northern Coahuila.
  • Silver Bull Resources Inc. provided the results from two drill holes of its underground drill program targeting high-grade structures at its Sierra Mojada project in Coahuila. The first hole intersected 7 m @ 121 g/t Ag, 0.52% Cu, including 2 m @ 376 g/t Ag, 3.0% Cu. The second hole intersected 25.5 m @ 294 g/t Ag, 0.96% Cu, including 11.5 m @ 486 g/t Ag, 1.13% Cu and 4 m @ 966 g/t Ag, 2.0% Cu, with the hole entering and ending in an unmapped working. The results confirm the East-West continuity of the first of three structures to be drilled.
  • Silver Viper Minerals Corp. is performing a 2,000 m drilling program at its Clemente project in Sonora. The diamond drilling is designed to target the down dip projection of the steep dipping quartz shear vein and adjacent quartz veining observed in accessible historical mine workings.

ON MINING

  • Endeavour Silver Corp. reported production results for the third quarter 2017. At Guanaceví in Durango, 74.6 K tonnes were produced at a rate of 811 tonnes per day (tpd) @ 250 g/t Ag, 0.57 g/t Au and recoveries of 87.2% Ag, 89.5% Au, to produce. 522.9 K Oz Ag, 1,224 Oz Au. At Bolañitos, in Guanajuato, 114.5 K tonnes were produced at a rate of 1,245 tpd @ 85 g/t Ag, 2.15 g/t Au and recoveries of 81.1% Ag, 82.4% Au, to produce 253.8 K Oz Ag, 6,523 Oz Au. At El Cubo in Guanajuato, 133.6 K tonnes were produced at a rate of 1,452 tpd @ 135 g/t Ag, 1.35 g/t Au and recoveries of 83.7% Ag, 83.3% Au, to produce 485.4 K Oz Ag, 5,901 Oz Au. In July the production decision was made on El Compas project in Zacatecas. In August were received the permits for the mine and plant at Terroneras, Jalisco. Pending are the permits for the waste dumps and tailings areas.
  • Torex Gold Resources Inc. signed a long term, common land lease agreement with the Puente Sur Balsas Ejido for the use of the land required for the exploration, construction and mining of minerals at its Media Luna project in Guerrero. The 25 year agreement can be revoked at the company’s discretion, with one year’s notice.
  • Telson Resources Inc. received the environmental permit (MIA) authorizing the construction of a mineral processing facility, related mining facilities, plus infrastructure and necessary underground development at its Tahuehueto project in Durango.
  • Capstone Mining Corp. announced production results for the quarter terminating at the end of September 2017. At Cozamin higher throughput than planned saw 223.8 K tonnes mined from underground and 223.4 K tonnes processed at a rate of 2,429 tpd, averaging 1.98% Cu, 0.8% Zn, 0.08% Pb, 42 g/t Ag; recoveries stood at 96.1% Cu, 65.7% Zn, 7.0% Pb, 79.7% Ag, to produce 15,688 tonnes of Cu concentrate, 2,463 tonnes of Zn concentrate and 20 tonnes of lead concentrate.
  • Leagold Mining Corp. disclosed Q3 2017 gold production at the Los Filos mine in Guerrero. During the period the Los Filos mine produced 47,766 Oz Au.
  • Great Panther Silver Ltd. released production results for the third quarter 2017. At the Guanajuato Mine Complex in Guanajuato, 76.1 K tonnes were milled @ 155 g/t Ag, 2.54 g/t Au; with recoveries of 89.8% Ag, 88.1% Au, to produce 341.6 K Oz Ag, 5,471 Oz Au. At Topia in Durango, 18 K tonnes were milled @ 362 g/t Ag, 0.97 g/t Au; with recoveries of 91.1% Ag, 67.1% Au, to produce 191.2 K Oz Ag, 377 Oz Au.
  • Alamos Gold Inc. reported production for the third quarter 2017, including figures from its Mexican operations. At Mulatos (including La Yaqui) 36,300 Oz Au were produced, and 14,900 Oz Au at El Chanate, both in Sonora.
  • GoGold Resources Inc. announced production for the quarter terminated at the end of September 2017. At its Parral tailings operation 353.4 K Oz Ag were produced. An improvement on the recoveries by changing agglomeration and heap parameters can be seen in the graphic below.
  • Hecla Mining Co. reported preliminary production results for the third quarter 2017, including figures from its Mexican operations. At San Sebastian in Durango, the mill operated at 397 tpd to produce 880.9 K Oz Ag, 8,199 Oz Au.

ON FINANCING

  • Colibri Resources Corp. has issued shares in the amount of $10,000 to settle an outstanding indebtedness due to Ed Stringer, a director of the company (Evelyn, Sonora).
  • Sierra Metals Inc. entered into an open market Sale Agreement with Jefferies LLC, C. Wainwright & Co, LLC Scotia Capital (USA) Inc. and Noble Capital Markets Inc., on which the company may during the term of the agreement sell common shares in the NYSE up to the amount US$55 M in gross proceeds. No common shares will be offered or sold in Canada (Cusi and Bolivar mines, both in Chihuahua).
  • Fortuna Silver Mines Inc. announced that Jorge A. Ganoza, CEO of the company increased his equity position in Fortuna by acquiring 131,800 common shares on the open market, valued at close to US$430 K. (San Jose, Oaxaca).
  • Oroco Resource Corp. intends to complete a non-brokered private placement to raise up to $600 K of gross proceeds (Xochilapa, Guerrero).

ON RESOURCES AND DEVELOPMENT

  • Fortuna Silver Mines Inc. updated exploration efforts at its San José mine in Oaxaca, where four rigs are testing the Trinidad-Bonanza-Stockwork complex, the Trinidad North Extension and the sub-parallel Victoria vein (formerly Ocotlan vein). Relevant estimated true width intercepts (TW) comprise 4.1 m @ 247 g/t Ag, 1.8 g/t Au; 21.0  m @ 153 g/t Ag, 0.9 g/t Au; 3.6 m @ 281 g/t Ag, 1.2 g/t Au; 4.5 m @ 356 g/t Ag, 3.5 g/t Au; 3.7 m @ 1,106 g/t Ag, 6.3 g/t Au in the Victoria vein, and 6.7 m @ 218 g/t Ag, 1.3 g/t Au; 2.2 m @ 195 g/t Ag, 1.1 g/t Au; 2.2 m @ 195 g/t Ag, 1.1 g/t Au at the Trinidad/Bonanza veins and Stockwork.

ON DEALS AND CORPORATE ISSUES

  • No Relevant News.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, secondary copper minerals around a quartz veinlet with oxidized sulfides, which is cutting an intrusive rock on a prospect of the Durango Altiplano. Photo by Jorge Cirett.

BlackCopper

Highlights on the First Week of October, 2017. Mineral Exploration in Mexico

During the 40th week of the year (October 2nd to October 8th, 2017), at least 25 press releases were announced by companies working in Mexico, including two quarterly reports. ON MEXICO ISSUES: a blockade to Goldcorp’s Peñasquito mine entrance in Zacatecas was lifted by assembling a government sponsored round table to assess protesters arguments. ON EXPLORATION: Activity seems to be gaining pace, with ten companies presenting press releases on their properties. In Sonora, Silver Viper has commenced the first drilling campaign on its Clemente project; Aztec Minerals disclosed interesting Au-Cu values from trenches at its Cervantes project; Canuc Resources released drilling results from its San Javier property. In Chihuahua, Sierra Metals informed on thick high-grade intercepts from drill testing deep geophysical targets at its Bolivar mine; Radius Gold disclosed initial rock chip sampling from its Los Tarros property; Harvest Gold announced exploration results on the Cascaritas prospect within its Cerro Cascaron project. In Sinaloa, Santana Minerals released metallurgical results from its Cuitaboca property. In Zacatecas and San Luis Potosi Alset Minerals released lithium and potassium results from auger drilling on 13 additional salars. In Veracruz Almadex Minerals disclosed good assay results on a long interval of its last hole at El Cobre; Mexican Gold informed that the first hole of a new drill campaign at its Las Minas property intersected two mineralized intervals containing chalcopyrite and bornite. ON MINING: Telson announced that mill clean up and refurbishment is nearing completion at its Campo Morado mine in Guerrero. US Antimony is to increase production at three of its four mines in Mexico. Americas Silver produced its first lead and zinc concentrates from the San Rafael mine in Sinaloa. Alio Gold and Coeur Mining presented third quarter 2017 reports.  ON FINANCING: Southern Silver closed the final tranche of its private placement, raising $502 K; Azure Minerals is to seek shareholder approval to share consolidation. ON RESOURCES AND DEVELOPMENT: Candelaria Mining retracted the environmental permit on its Caballo Blanco project in Veracruz.  Kootenay Silver announced assay results from drilling by partner Pan American Silver on its La Negra prospect in Sonora. ON DEALS AND CORPORATE ISSUES: Magellan Resources announced that its purchase of the SDA mill in Nayarit remains on track to completion. Radius Gold signed a binding agreement with a private Mexican company on Los Tarros property in Chihuahua. Prospero Silver received authorization from the TSX on a related third party agreement.

ON MEXICO ISSUES

  • Goldcorp suffered entrance blockades at Peñasquito, in Zacatecas. For a week the entrance to the Peñasquito mine in Zacatecas was blocked by protesters. The blockade was terminated by the establishment, aided by the federal government, of a round table to discuss the protesters grievances. The table is to be leaded by the Zacatecas State government.

ON EXPLORATION

  • Silver Viper Minerals Corp. has mobilized a drill rig to its Clemente project in Sonora. The drill program envisages 2,000 m of diamond core drilling, focusing on the El Mundo and Nuevo Mundo areas, where Ag-Au-base metals mineralization is hosted by quartz shear veins, quartz stockworks and hematitic vein breccias. The best sample to date is from the El Mundo area is 0.5 m wide @ 1,895 g/t Ag, 4.46 g/t Au, 1.9% Pb, 1.6% Zn. The environmental permit for drilling has been approved, with land and access permit agreements in place.
  • Kootenay Silver Inc. reported that Aztec Minerals Corp. disclosed attractive sampling results from trenching in the Jasper prospect at the Cervantes property in Sonora (which is under option from the former by the latter). The new manual trenching connected two previous trenches, extending Cu-Au-Mo mineralization for 92.3 m @ 0.52% Cu, 0.62 g/t Au, 76 ppm Mo, staying open in both directions. The rock is highly leached quartz feldspar porphyry with chrysocolla and neotocite as oxide copper minerals. A 50 by 50 m soil grid was completed over the Jasper project.
  • Alset Minerals Corp. released results from auger sampling on 13 additional salars in Zacatecas and San Luis Potosi. “Of the 13 salars sampled, 9 had average lithium grades exceeding 200 ppm, with 4 salars averaging lithium grades of around 400 ppm and higher…”. Dry lake sediment samples were collected using a hand-held motorized auger, or a hammer and hollow-tube sampling method, and assaying the material collected between 0.5 and 1.0 m of depth. The Caliguey salar averaged 769 ppm Li and 3.4% K; the Hernandez salar averaged 556 ppm Li, 1.6% K; the Chapala salar averaged 416 ppm Li, 1.2% K.
  • Almadex Minerals Ltd. disclosed assays for the last hole at the Norte area of its El Cobre property in Veracruz. Noteworthy intervals comprise 481.65 m @ 0.67 g/t Au, 0.27% Cu, including 187.25 m @ 1.02 g/t Au, 0.33% Cu (from 354.00 to 541.25 m). The hole was drilled to test for continuity of mineralization between two other holes within the area.
  • Sierra Metals Inc. informed that the first four holes to test 22 high priority targets identified with the recently completed Titan 24 geophysical survey intersected wide high-grade copper bodies in three different zones with no previously known mineralization. The intercepts include 25.3 m @ 0.38 g/t Au, 31 g/t Ag, 1.55% Cu, 1.95% Zn; 28.65 m @ 0.34 g/t Au, 34 g/t Ag, 1.97% Cu, 0.91% Zn; 13.05 m @ 1.79 g/t Au, 37 g/t Ag, 2.05% Cu; 33.4 m @ 0.10 g/t Au, 32 g/t Ag, 1.04% Cu, 0.20% Zn. The four intercepts are deep seated, between 340 m and 492.90 m in the core, along length (Note of compiler.- This seems a significant discovery).
  • Canuc Resources Corp. announced that the third hole at its San Javier project in Sonora intersected the Santa Rosa vein in two splays, the first with 0.37 m @ 156 g/t Ag, 0.39 g/t Au, 1.0% Pb, 5.6% Zn, and the second with 1.48 m @ 1,514 g/t Ag, 2.91 g/t Au, 4.2% Pb, 5.6% Zn. Canuc has concluded the agreement to acquire the Tule 1 concession, which envelops the property to the NE, adding considerable strike length to the Santa Rosa vein. In the NE land package is the Carranza breccia zone, with 11 m @ 274 g/t Ag on the surface, and the Cerro Colorado breccia zone, with 11.3 m @ 285 g/t Ag.
  • Radius Gold Inc. has signed a binding agreement with a private Mexican company to option the 473 has Los Tarros project in Chihuahua. Several breccia bodies occur within a 3.5 km by 1 km area, with the largest breccia exceeding 250 m by 250 m. The volcanic hosted explosive breccias are cemented by silica and iron oxides. The average of 26 samples collected is 1.42 g/t Au, 66 g/t Ag. At the Rosario breccia (>150 m by 60 m) an old pit returned 10 m @ 2.95 g/t Au, 18 g/t Ag, staying open in all directions. Other significant breccia bodies include Regalito, La Bufa (the only one hosted in granodiorite), San Nicolas and San Miguel.
  • Mexican Gold Corp. informed that step-out drilling at its Las Minas property in Veracruz intersected two intervals of chalcopyrite-bornite-magnetite mineralization in the first hole drilled beyond the current western limit of the El Dorado/Juan Bran zone. A 3.0 m interval contains magnetite and an estimated chalcopyrite content of up to 3% by volume. An 8.0 m interval further downhole is a mineralized exoskarn with up to an estimated 5% chalcopyrite by volume, and visible bornite and magnetite. Assays are pending on these core-length intervals.
  • Santana Minerals Ltd. reported good results from initial metallurgical test work on composite samples from three drill holes from the Mojardina prospect at its Cuitaboca project in Sinaloa. A 75 micron, 48 hours, bottle-roll standard carbon in leach test on the three holes returned 93.1%, 95.3%, 98.4% silver recoveries respectively; the rougher flotation test achieved 93.6%, 88.2%, and 86.8% silver respectively.
  • Harvest Gold Corp. identified six silver-rich polymetallic veins at the Cascarita prospect of its Cerro Cascaron Project in Chihuahua. High grade silver with strong Pb and Zn values were sampled in historic adits. The six veins are within a 900 m by 300 m corridor, attain up to 3.3 m in width and display colloform and drusiform quartz textures, as well as local amethyst quartz. Vein textures indicating boiling are preserved at one of the veins, as quartz pseudomorphs after bladed calcite. Results include 1.4 m @ 114 g/t Ag, 5.2% Pb, 1.3% Zn; 2.0 m @ 127 g/t Ag, 8.7% Pb, 0.5% Zn; 2.3 m @ 311 g/t Ag, 1.6% Pb, 0.3% Zn; 2.1 m @ 245 g/t Ag, 6.4% Pb, 0.5% Zn; 3.3 m @ 104 g/t Ag, 2.4% Pb, 0.5% Zn.

ON MINING

  • Telson Resources Inc. announced that mill clean up and refurbishment is nearing completion at its Campo Morado mine in Guerrero. Underground mining is being ramped up, having delivered 25 K tonnes to the coarse ore patio. Ore crushing is operational, putting 5 K tonnes to the crushed ore stockpile. Commercial production at a 1,400 tonnes per day (tpd) is projected to be achieved during October, while production levels to the 2,500 tpd mill capacity is to take 6 to 12 months.
  • United States Antimony Corp. plans to increase production at three of its four mines in Mexico. At Wadley, in San Luis Potosi, the gravity mill will process lower grade ore (not direct shipping ore), which could results in a 25-50% increase in production. At Soyatal in Queretaro, direct shipping ore is to be produced once new powder magazines are built. In Zacatecas a mine road to the Guadalupe mines is to be repaired, allowing mining to be resumed at the Santa Monica mine. The Los Juarez mine in Queretaro is awaiting a permit from SEMARNAT for the cyanide circuit at the Puerto Blanco mill.
  • Americas Silver Corp. announced that the first lead and zinc concentrates produced from its San Rafael project at its Cosalá operation in Sinaloa were produced during the last week of September. Commercial production is expected to be reached before the end of the fourth quarter, when the Nuestra Señora mine is expected to enter in care and maintenance.
  • Alio Gold Inc. released 3rd quarter preliminary production results from its San Francisco mine in Sonora. 1.9 M tonnes of ore @ 0.40 g/t Au and 5.2 M tonnes of waste were moved (3.15 waste to ore strip ratio) to produce 19,429 Oz Au, 8,808 Oz Ag. Production guidance stays on track to produce 88 -90 K Oz Au during 2017.
  • Coeur Mining Inc. disclosed third quarter 2017 production results, including figures from its Mexican operations. At Palmarejo, in Chihuahua, 413.1 K tonnes were milled @ 172 g/t Ag, 2.49 g/t Au, achieving recoveries of 83.6% Ag, 83.1% Au, to produce 1.91 M Oz Ag, 28,948 Oz Au

ON FINANCING

  • Southern Silver Exploration Corp. closed the final tranche of its previously reported private placement, for gross proceeds of $502 K. The three tranches gathered total gross proceeds of $3.58 M (Cerro Las Minitas, Durango).
  • Azure Minerals Ltd. is to seek shareholder approval for consolidation of the issued capital through the conversion of every twenty existing shares into one share.

ON RESOURCES AND DEVELOPMENT

  • Candelaria Mining Corp. decided to retract the environmental permit for the Caballo Blanco project in Veracruz, citing the current political climate and upcoming state and federal elections. “…The postponing of the permit will allow Candelaria to optimize certain aspects of the project and improve upon existing and establish new relationships with our stakeholders. “
  • Kootenay Silver Inc. announced the results of 13 infill drill holes completed by Pan American Silver Corp. on its La Negra property in Sonora. Highlighted intercepts are 34.3 m @ 159 g/t Ag (including 8.2 m @ 306 g/t Ag); 17.1 m @ 192 g/t Ag (including 3.55 m @ 597 g/t Ag); 48.7 m @ 281 g/t Ag (including 1.95 m @ 3,004 g/t Ag, 1.0 m @ 2,146 g/t Ag, 5.35 m @ 558 g/t Ag); 21.0 m @ 274 g/t Ag (including 1.1 m @ 3,018 g/t Ag); 31.8 m @ 403 g/t Ag (including 8.85 m @ 1,098 g/t Ag); 29.25 m @ 138 g/t Ag; 38.7 m @ 289 g/t Ag (including 7.6 m @ 674 g/t Ag); 76.35 m @ 236 g/t Ag; 53.8 m @ 174 g/t Ag (including 12.15 m @ 308 g/t Ag); 5.35 m @ 571 g/t Ag.

ON DEALS AND CORPORATE ISSUES

  • Magellan Gold Corp. announced that its purchase of the SDA mill in Nayarit is on track to be closed by the end of October 2017.
  • Radius Gold Inc. has signed a binding agreement with a private Mexican company to option the 473 has Los Tarros project in Chihuahua. Radius can earn a 100% interest in the project by making an immediate payment of US5 K, and staged payments over four years totaling US$1.68 M, of which US$1.2 M is a final payment at the end of the four year period. A 2% NSR can be bought by Radius for US$1 M for each 1%.
  • Prospero Silver Corp. has received TSX approval of the option to own agreement with Exploraciones Altiplano S.A. de C.V. regarding Altiplano’s Buenavista claims in Durango. The agreement constitutes a “related party transaction” under the TSX policies.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture below, the Peña Colorada mine pit in Colima. Photo by Jorge Cirett.

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