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

 

By Miguel A Heredia

During the 19th week of the year (May 7th to May 13th, 2018), at least 40 press releases were announced by companies working in Mexico, with eight informing on exploration results, nine reporting Q1 2018 results, four announcing financing, sixteen communicating deals and corporate issues, and  seven reporting on resources & development. ON MEXICO ISSUES, Fernando Alanis Ortega was appointed President of CAMIMEX for the period 2018-2010. Investment in the mining sector reached $4,287 M USD in 2017, representing an increase of 14.3%. ON EXPLORATION, In Sonora, Colibri Resource reported drilling results at its El Pilar project, and Azure provided an update on its El Alacran project. In Chihuahua, Sable commenced a 4,000m diamond drill program on its Margarita project; Prospero and Fortuna revised its 2018 work program for Bermudez and Trias projects in Chihuahua, and Buenavista project in Durango.  In Zacatecas-Durango, Canasil announced plans to resume drilling at its La Esperanza project. In Guerrero, Alio announced that a regional exploration work is underway on its Ana Paula project. In Oaxaca, Megastar signed an option agreement to acquire a mining project. ON MINING, Alio Gold, Pan American Silver, Americas Silver, Excellon, GoGold, Hecla, Premier Gold, and Torex reported Q1 2018 results from their Mexican operations. Gainey completed upgrade of its Huajicori mill in Nayarit. ON FINANCING, Almaden announced a non-brokered private placement for $7M.  Minaurum raised $4.7M in its first tranche of a total $6M non-brokered private placement. Prize Mining announced a non-brokered private placement for $2M. Silver Spruce closed a non-brokered private placement for $287.7K. ON RESOURCES AND DEVELOPMENT, Alio initiated the construction of a 1,200m underground decline at its Ana Paula project in Guerrero. Hecla provided an exploration update on its San Sebastian Mine.  Leagold reported underground drilling results for its Los Filos mine in Guerrero. Premier Gold filed a technical report for its Mercedes mine in Sonora.  Sierra Metals reported mine development at its Cusi and Bolivar mines in Chihuahua during Q1 2018 period. US Antimony reported progress on the construction of the leach plant for the Los Juarez Au-Ag-Sb deposit in Queretaro. ON DEALS AND CORPORATE ISSUES, Alamos Gold, Endeavour, Excellon, and Fortuna reported results of its 2018 annual general meetings. Alamos also announced changes to its Board of Directors. Almadex approved spinout transaction. Great Panther announced the departure of its COO. Canuc announced the appointments of its CFO and Corporate Secretary. New Gold announced the appointment of its President and CEO. Candente reached an agreement with 3rd Eye Research to retain IR services. First Majestic completed the acquisition of Primero Mining. Goldplay received approval on the San Marcial option agreement in Sinaloa with SSR Mining. One World Lithium announced the granting of stock options. Primero announced receipt of Mexican antitrust clearance for arrangement with First Majestic. MX Gold signed a definitive agreement to sell interest at its Magistral project in Durango.

ON MEXICO ISSUES

  • Fernando Alanis Ortega, was appointed President of the Mexican National Chamber of Mines (CAMIMEX) for the period 2018-2010, replacing the outgoing Daniel Chavez Carreon.
  • CAMIMEX, reported that the investment in the mining sector reached $4,287 M USD in 2017. Although this represents an increase of 14.3% over the previous year, it is still 48.5% lesser that the invested record in 2012 which reached $8,043M USD.

ON EXPLORATION

  • Colibri Resource Corporation, reported drilling results from its El Pilar project in Sonora. Highlights are 9m of 8.16 g/t Au, including 1.5m of 33.4 g/t Au. The company has completed 2,117m in 20 RC holes “aimed to test for continuity within previously interpreted zones of mineralization, test for extensions to the known mineralization, and explore locally for new zones of gold mineralization”.
  • Azure Minerals Limited, provided an update on results from its El Alacrán project in Sonora, currently operated by Minera Teck S.A. de C.V. Teck drilled 14 holes to test extensions of Au mineralized zones at Loma Bonita area. Results suggest potential expansion of the Loma Bonita epithermal Au-Ag mineralized system at depth south towards Cerro San Simon, where four holes were drilled to test resistivity anomalies. Teck also drilled four holes at Cerro Colorado Zone to test mapped targets and geophysical anomalies generated by IP surveys and airborne magnetics, confirming potential for porphyry copper mineralization. Geological, geochemical and geophysical surveys are being carried out in H1, 2018 and will be followed by further drilling in H2, 2018.
  • Sable Resources Ltd., commenced a 4,000m diamond drill program to test 1.7km of Ag-bearing epithermal quartz veins at its margarita project in Chihuahua. The aim is to test for high-grade precious metal horizon 200m below mineralized surface samples.
  • Prospero Silver Corp., and Fortuna Silver Mines Inc., revised its 2018 exploration program, deciding to conduct a 6,000m drill program to test targets at its Buenavista, project in Durango, as well as at its Bermudez and Trias projects in Chihuahua.
  • Canasil Resources Inc., announced plans to resume drilling at its La Esperanza project in Zacatecas-Durango. The drill program was designed to test the northwestern and southeastern extension of the La Esperanza vein 50m below of the high grade found in hole ES-17-16.
  • Alio Gold Inc., announced that a regional exploration work is underway on its Ana Paula project in Guerrero which includes an airborne magnetic survey targeting further breccia or skarn targets.
  • Megastar Development Corporation, signed an option agreement with Paradex Inc., and Minera ZalameraA. de C.V., to acquire 100% of the Rama de Oro project in Oaxaca. “The Project is hosted by caldera-related Tertiary volcanic rocks (e.g. El Aguila model) crosscut by hydrothermal veining inferred to be related to late-stage granitic magmatism locally exposed as dikes and underlying the adjacent ‘Nueve Puntos’ mountain”. Exploration work on the property has identified a 4 square-Km zone of quartz veining, silicification, and clay alteration of volcanic rocks. Sampling on this altered zones have returned anomalous values of Au, Ag, As, Hg, and Sb, suggesting the upper part of a precious metal epithermal system.
  • Prize Mining Corporation, reported sampling results at its Manto Negro Copper project in Coahuila. Significant results include 6m of 2.73% Cu and 58 g/t Ag, 5.2m of 1.78% Cu and 40 g/t Ag, and 7m of 1.65% Cu and 36 g/t Ag.

ON MINING

  • Alio Gold Inc., announced Q1 results from its san Francisco mine in Sonora, Alio produced 17.6K Oz Au and ~9K Oz Ag at an AISC of $1,262 per Oz Au.
  • Pan American Silver Corp., reported results from its Dolores and La Colorada mines in Chihuahua and Zacatecas states respectively. Au and Ag production during the period of Q1, 2018 was 34.4K Oz Au and 1.2M Oz Ag at Dolores mine and 1K Oz Au and 1.65M Oz Ag at La Colorada mine.
  • Americas Silver Corporation, reported Q1 2018 results from its Cosala operations in Sinaloa. Americas processed 163.8K tonnes to produce 397K Oz Ag, 7.6 M Lb Pb, and 7.3M Lb Zn.
  • Excellon Resources Inc., reported Q1 2018 results from its La Platosa mine in Durango. The company processed 18.9K tonnes (including 5.9K tonnes of historical stockpile) at average grades of 359 g/t Ag, 3.8% Pb, and 6.4% Zn to produce 194.5K Oz Ag, 1.3M Lb Pb, and 1.8M Lb Zn.
  • Gainey Capital Corp., completed upgrade of its Huajicori mill in Nayarit to process 300 tonnes per day.
  • GoGold Resources Inc., announced Q1 2018 results from its Parral Tailings project in Chihuahua. The company stacked 439.3K tonnes on the leach pad to produce 265.6K Oz Ag and 1908 Oz Au.
  • Hecla Mining Company, reported Q1 2018 results from its San Sebastian mine in Durango. The mine produced 512K Oz Ag and 4,500 Oz Au.
  • Premier Gold Mines Limited, announced Q1 2018 results from its Mercedes mine in Sonora. The company milled 168.3K tonnes of 2.91 g/t Au and 31.8 g/t Ag to produce 15K Oz Au and 57.4K Oz Ag.
  • Torex Gold Resources Inc., reported Q1 2018 results from its El Limón-Guajes Mine Complex in Guerrero. Torex processed 785K tonnes of 3.29 g/t Au to produce 67.2K Oz Au at an AISC of $954 per ounce.

ON FINANCING

  • Almaden Minerals Ltd., announced a non-brokered private placement for $7M. Net proceeds will be used for exploration and development of its Ixtaca project in Puebla.
  • Minaurum Gold Inc., raised $4.7M in its first tranche of a total $6M non-brokered private placement. Net proceeds will be used for its ongoing exploration program at the Alamos Silver project in Sonora.
  • Prize Mining Corporation, announced a non-brokered private placement for $2M. Net proceeds will be used to conduct a geological, diamond drill and engineering assessment on its Manto Negro Copper project in Coahuila The aim is to produce a 43-101 compliant mineral resource.
  • Silver Spruce Resources Inc., closed a non-brokered private placement for $287.7K. Net proceeds will be used at Its Pino de Plata project in Chihuahua, aimed to drill target sites on the property.

ON RESOURCES AND DEVELOPMENT

  • Alio Gold Inc., initiated the construction of a 1,200m underground decline at its Ana Paula project, which is expected to be completed in Q3 2018. It will enable commencement of the first phase of the proposed underground diamond drill program, which will consist of 12,000 m in 55 holes. The company completed a six-hole 3,800m drill program below the proposed open pit to better define the geometry of the complex high-grade breccia and know the mineralization extent. Alio is also currently carrying out a drilling program on a high priority surface target 150m north of the proposed open pit, on which a detailed geological mapping at a scale 1:2,000 will be conducted.
  • Hecla Mining Company, provided and exploration update on its San Sebastian mine in Durango. An Infill drill program is been conducted to expand high-grade polymetallic zones similar to the Hugh Zone on the Middle and Francine veins, as well as oxide mineralization along the Professor and Francine veins. Significant results are 1.34m of 135 g/t Ag, 23.5% Pb, 18.5% Zn, and 7.9% Cu on the polymetallic zone, and 1.58m of 1,200 g/t Ag and 4.98 g/t Au on the oxide mineralization. At West Middle vein, the most significant intercepts are 1.34m of 317 g/t Ag, 10.1% Pb, 18% Zn, and 3% Cu, and 0.85m of 304 g/t Ag, 8.5% Pb, 9.4% Zn, and 3.8% Cu.
  • Mexican Gold Corp., reported step-out drilling results from the El Dorado / Juan Bran and Santa Cruz zones within its Las Minas projects in Veracruz. Significant interceptions are 8m of 1.06 g/t Au and 6 g/t Ag, including 6m of 1.36 g/t Au and 8 g/t Ag; 6m of 2.52 g/t Au and 10 g/t Ag; 14m of 1.96 g/t Au and 0.3 g/t Ag, including 6m of 3.49 g/t Au and 0.5 g/t Ag; and 24m of 1.24 g/t Au and 3 g/t Ag, including 10m of 2.12 g/t Au and 4 g/t Ag. The drill results tested the continuity of mineralization at El Dorado / Juan Bran zone and extended the mineralized zone to depth as well as cutting multiple mineralized intervals in the upward extension of the Santa Cruz zone.
  • Leagold Mining Corporation, reported underground drilling results for its Los Filos mine in Guerrero. Highlights are 4.1m of 24.2 g/t Au, 6.95m of 23.6 g/t Au, and 9.1m of 8.7 g/t Au from the Nukay, Conchita and Creston Rojo deposits respectively. The aim of the drilling program which comprises over 12,000m to date from 62,000m planned for 2018 is to identify additional resources along the contact of the circular intrusive orebodies.
  • Premier Gold Mines Limited, filed a technical report to release  updated mineral reserves for its Mercedes Mine in Sonora, with 3.3M tonnes of 3.94 g/t Au containing 417K Oz Au, and measured and indicated mineral resources for 3.68M tonnes of 4.32 g/t Au containing 511K Oz Au.
  • Sierra Metals Inc., reported mine development at its Cusi and Bolivar mines in Chihuahua during Q1, 2018. At Cusi, mine development totaled 676m. The company also carried out 1,448m of underground infill drilling, and 7,398m from surface. At Bolivar, mine development totaled 1,177m, with 650m to prepare stops for mine production, 466m to deepening ramps and developing service ramps for ventilation and pumping, and 61m of raises.
  • US Antimony Corporation, reported progress on the construction of the leach plant for the Los Juarez Au-Ag-Sb deposit in Queretaro. Testing and shake-down of the plant is anticipated in Q4 2018.

ON DEALS AND CORPORATE ISSUES

  • Almadex Minerals Limited., approved a spinout transaction of its early stage exploration projects, royalties interests, and certain other assets. Almadex will be re-named Azucar Minerals Ltd., upon closing of the transaction.
  • Candente Gold Corp., reached an agreement with 3rd Eye Research to retain IR services.
  • First Majestic Silver Corp., completed the acquisition of Primero Mining Corp. With the arrangement now completed the Primero´s shares will be delisted from the TSX. The company also announced the termination of the silver purchase agreement with Wheaton

Precious Metals Corp., relating to the San Dimas mine.

  • Goldplay Exploration Ltd., received the approval to acquire the 100% of the San Marcial, Sinaloa option agreement with SRR Mining. Goldplay will pay, over a three year option period, $2.6 M in cash, issue 3.5M common shares, and incur in exploration expenses for $3M.
  • Primero Mining Corp., announced receipt of Mexican antitrust clearance for the arrangement with First Majestic.
  • MX Gold Corp., signed a definitive agreement to sell its 50% interest on its Magistral project in Durango for a purchase price of US$4.5M.

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, an oxidized quartz vein with a high content of disseminated pyrite in a prospect in Oaxaca, Mexico. Photo by Miguel A Heredia.

 

U. S. ANTIMONY REPORTS PROGRESS ON GOLD AND SILVER LEACH PLANT AND STRONG ZEOLITE SALES

us antimony reports progress on au-ag leach plant and strong zeolite sale

THOMPSON FALLS, MT / ACCESSWIRE / May 7, 2018 / United States Antimony Corporation (“USAC”, NYSE American: UAMY) reported progress on the construction of the leach plant for the Los Juarez gold-silver-antimony deposit in Queretaro, Mexico. The excavation and lining of the tailings pond is the largest and most expensive project, and it is underway. The concrete floor of the leach plant is being poured and initially no building will be necessary over the floor. Much of the equipment is being assembled in Montana and also in Mexico. Testing and shake-down of the plant is anticipated in Q4 2018.

US Antimony Reports Strong Production – February 2018

us antimony reports strong production_feb 2018

THOMPSON FALL, MT / ACCESSWIRE / February 5, 2018 / United States Antimony Corporation (“USAC,” NYSE American: UAMY) reported estimated sales for December 2017 and January 2018 were as follows:
Product December 2017 January 2018 % Change
Antimony pounds 76,868 212,764 +177%
Zeolite short tons 909 1,337 + 47%

Antimony sales were 135,896 pounds or 177% greater in January 2018 than December 2017 due to the fact that customers do not want large inventories at year end. USAC’s Mexican production has been more meaningful as the North American supply of raw materials has slowed down.

U.S. Antimony Reports Plans to Increase Mexican Mine Production

http://app.quotemedia.com/quotetools/newsStoryPopup.go?storyId=6074804631160350&topic=BASICMAT&symbology=null&cp=null&webmasterId=90338

THOMPSON FALLS, MT / ACCESSWIRE / October 4, 2017 / United States Antimony Corporation (“USAC,” NYSE American: UAMY) reported plans to increase Mexican mine production at three of its four mines in the next 30 days. USAC production is in a “sold out condition” and additional raw material is needed for the USAC smelter at Madero, Coahuila, Mexico.

In San Luis Potosi at the Wadley Mine, the gravity mill will be started on lower grade ore that has accrued during the mining of direct shipping ore (DSO) for the smelter. Typically, this ore will make a 35-45% antimony concentrate that is also shipped to Madero. This could increase production by 25-50% at the Wadley mine. In Queretaro, the Soyatal District mines are awaiting new powder magazines to start production of DSO and mill feed for the mill at Puerto Blanco. Grades similar to the Wadley are expected. In Zacatecas, the Guadalupe Mines access road will be repaired and mining will be resumed at the Santa Monica mine for DSO and mill feed for the Puerto Blanco flotation and gravity mill circuits.

In Queretaro, a fourth mine, the Los Juarez gold/silver/antimony mine, awaits a permit from SEMARNAT (Mexican equivalent of the EPA) for the cyanide circuit at the Puerto Blanco mill, which is in the final stages of approval.

 

U. S. ANTIMONY REPORTS PRODUCTION OF ANTIMONY TRI SULFIDE

http://www.usantimony.com/2017_newsroom.htm#U._S._ANTIMONY_REPORTS_PRODUCTION_OF _ANTIMONY_TRI_SULFIDE

September 11, 2017. Thompson Falls, Montana. United States Antimony Corporation (“USAC”, NYSE American “UAMY”) reported the successful production of antimony tri-sulfide per military MIL-A-159D specification. The product is used in all center-fire cartridges for military and commercial production. Initial production was on a small scale, but additional equipment is being installed to enter the market. The product contains 70.5% antimony. At a Rotterdam price for metal at $3.833 per pound, the antimony in the tri-sulfide would be worth approximately $10.75 per pound. Additional markets include the friction brake industry.

 

SEMARNAT (Mexican equivalent of the EPA) is expected to approve the cyanide circuit at the Puerto Blanco mill for the Los Juarez gold/silver/antimony property within 30 days.

U.S. Antimony Reports Major Antimony Cost Reductions

http://news.morningstar.com/all/access-wire/ASWAccesswire471278MSN/us-antimony-reports-major-antimony-cost-reductions.aspx

THOMPSON FALLS, MT / ACCESSWIRE / August 7, 2017 / United States Antimony Corporation (“USAC”) (NYSE American: UAMY) reported major cost reductions at its Mexican antimony smelter. As a result of metallurgical changes, the Company has drastically cut costs and increased production rates. The approximate reductions for fuel costs are 50%, electricity 55%, and reagents 75%. Maintenance and other costs are being evaluated. Extra manpower will be assigned to processing Los Juarez production. The Company expects to see these lower costs impacting the Company’s reported financials beginning in Q3 2017.

US. ANTIMONY REPORTS LOS JUAREZ PRODUCTION PLANS

http://www.usantimony.com/2017_newsroom.htm#U._S._ANTIMONY_REPORTS_LOS_JUAREZ_PRODUCTION_PLANS

July 3, 2017. Thompson Falls, Montana. United States Antimony Corporation (“USAC”, NYSE MKT “UAMY”) reported that following the milling of 400 metric tons of Los Juarez gold/silver/antimony at the Puerto Blanco mill in Guanajuato, Mexico that it will proceed with the cyanide circuit to increase the recoveries of both the silver and gold from the flotation mill tailings. Initial results of the floatation assays without the cyanide circuit are as follows:

Item Gold Silver Antimony
Heads 0.035 opmt 3.27 opmt 0.652%
Tails 0.016 opmt 1.618 opmt 0.348%
Recovered grade 0.019 opmt 1.65 opmt 0.17%
% recovery 52.8% 49.6% 31.5

(opmt = ounces per metric ton)

The flotation concentrate contained 2.52 opmt gold, 496.4 opmt silver, and 52.0% antimony. The floatation concentrates will be processed by the caustic leach circuit which is operational.

Cyanide testing of the mill tailings has indicated excellent recoveries, and the antimony recovery has been on the order of 70% at lower depths. The estimated recovery of the values after the caustic leach and cyanide circuit of the tailings is as follows:

Metal Assay Recovery Value Value /mt
Gold 0.035 opmt 90% $1,250/oz $39.38
Silver 3.27 opmt 90% $16.50/oz $48.56
Antimony 0.652% 70% $3.90/lb $39.12
Total $127.06

Construction of the cyanide leach circuit for the Puerto Blanco mill tailings will begin when the permit is approved by SEMARNAT (Mexican equivalent of the EPA). Tentatively, the plan is to leach in Mexico and handle the second part of the process in Montana which is expected to cut Capex costs significantly, reduce operating costs, and expedite the start of the circuit.

Following are the sales estimates for Q2 2017 compared to Q2 2016:

Product Q2 2017 Q2 2016 % change
Antimony pounds 505,760 732,802 -31.0
Zeolite tons 3,352 4,218 -20.5
Silver ounces 17,552.32 29,219.25 -39.9
Gold ounces 61.1552 76.09 -19.62

U.S. Antimony Reports Start of Los Juarez Pilot Production

http://news.morningstar.com/all/access-wire/ASWAccesswire464738MSN/us-antimony-reports-start-of-los-juarez-pilot-production.aspx

THOMPSON FALLS, MT / ACCESSWIRE / June 5, 2017 / United States Antimony Corporation (“USAC”, NYSE MKT: UAMY) reported that approximately 400 metric tons of Los Juarez gold/silver/antimony rock has been trucked to the Puerto Blanco mill in Guanajuato, Mexico and milled. Initial results using X-ray are encouraging, but we are awaiting results by a third party lab. The permit for a cyanide leach circuit for the Puerto Blanco mill tailings has been reviewed by SEMARNAT (Mexican equivalent of EPA), and USAC is changing the location and design of the tailings pond to comply with their request.

U.S. Antimony Reports Mining in Mexico

http://news.morningstar.com/all/access-wire/ASWAccesswire458691MSN/us-antimony-reports-mining-in-mexico.aspx

THOMPSON FALLS, MT / ACCESSWIRE / April 3, 2017 / United States Antimony Corporation (“USAC,” NYSE MKT: UAMY) reports the following production estimates for Q1, 2017:

Product Q1, 2017 Q1, 2016 % Change
Antimony pounds 591,942 912,841 -35
Zeolite tons 3,356 3,097 +8
Gold ounces, North America 24.6 40.0 -38.5
Gold ounces, Australia 56.3867 34.977 +61.2
Silver ounces, North America 8,639 12,973 -33.4

Q1 2017 antimony production was lower than Q1 2016 due to the end of the processing of Australian concentrates. Since the beginning of 2017, the Company has accelerated the mining at Wadley and Soyatal to compensate for the Australian supply. During Q1 2017, these two properties produced an estimated 200,000 pounds of contained antimony for the Madero smelter. The smelter has only processed 132,092 pounds of metal that is being shipped to the United States as finished metal. During this period, more furnaces were brought on line at Madero.

The Rotterdam price of antimony grade I metal has increased during Q1 2017 from $7,350 per metric ton ($3.33 per pound) to $8,750 per metric ton ($3.97 per pound). USAC will benefit from the increased prices especially with Mexican production.

U.S. Antimony Reports Antimony Prices and Production

http://finance.yahoo.com/news/u-antimony-reports-antimony-prices-130000050.html

THOMPSON FALLS, MT / ACCESSWIRE / March 6, 2017 / United States Antimony Corporation (“USAC”) (NYSE MKT: UAMY) reports significant price increases in antimony and that it has successfully transitioned from custom smelting antimony concentrates at the Madero, Coahuila, Mexico plant to its own mine production. This Company’s antimony business plan is to accelerate production from its Mexican antimony mines with internal cash flow. The mines had been idle for two years.

With its own antimony raw materials, USAC will benefit fully from price increases, rather than just the smelting fees and small percentages of the price increases. Additionally, the company will enjoy lower processing and trucking costs.