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

Banded quartz texture

By Miguel A Heredia

During the 45th week of the year (November 5th to November 11th, 2018), at least 36 press releases were announced by companies working in Mexico, with thirteen communicating mining activities, seven disclosing deals and corporate issues, seven informing on exploration results, six announcing financing issues, and 3 reporting on advances on their properties. ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Sonora, Aloro commenced the road construction and building of drill pads on its Los Venados project, San Marco Resources announced the commencement of a drilling program at its Chunibas project, Sonoro reported drill results from its Cerro Caliche project, and Minaurum discovered two new vein zones at its Alamos Silver project. In Coahuila, Discovery Metals completed a 40 line-km ground magnetometer survey at its Monclova project.  ON MINING, Alio Gold, Americas Silver, Argonaut, Avino, Consolidated Zinc, First Majestic, Fortuna Silver, Hecla, Pan American Silver, Premier Gold, Santacruz Mining, and US Antimony reported production results from their Mexican operations. ON FINANCING, Auxico Gold closed a non-brokered private placement for $315K. GoGold closed the US$12M sale of the Santa Gertrudis royalty with Metalla Royalty and Streaming Ltd. Impact Silver announced a non-brokered private placement to raise up to $1.5M. Telson Mining received $5M from Trafigura Mexico for the second tranche of the loan agreement announced on December 18, 2017. Silver Spruce consolidated its common shares and proposed to complete a non-brokered private placement to raise up to $1.5M. Golden Minerals reported its Q3 2018 financial results. ON RESOURCES AND DEVELOPMENT, Kootenay designed a drilling program aimed to expand resources at its la Cigarra deposit in Chihuahua. Hecla released in-fill drilling results for its San Sebastian mine in Durango. ON DEALS AND CORPORATE ISSUES, Capstone Mining made reductions to its organizational structure (Cozamin mine, Zacatecas). Defiance Silver and ValOro Resources signed a definitive merger agreement (San Acacio project, Zacatecas). Golden Goliath announced that Desarrollos Mineros El Aguila (subsidiary of Fresnillo plc) exercised the option agreement on its Uruachic project in Chihuahua. New Gold (Cerro San Pedro mine, San Luis Potosi) and Prize Mining (Manto Negro project, Coahuila) appointed their Chief Financial Officer respectively. Golden Reign and Marlin Gold completed business combination to form Mako Mining Corp (La Trinidad mine, Sinaloa).

ON MEXICO ISSUES

No relevant news.

ON EXPLORATION

  • Aloro Mining Corp., commenced a 3.6km road construction and building of 12 permitted drill pads at its Los Venados project in Sonora. “The road construction will open up new exposures for sampling in mineralized areas and structure that were previously undercover”.
  • San Marco Resources, commenced a drilling program at its Chunibas project in Sonora where they have a JV agreement with Antofagasta plc. The drilling program will consists of initial 1,500m comprised in six holes with the goal of testing down dip and along strike high-grade Cu-Ag mineralized mantos hosted in volcanic rocks in different stratigraphic levels. The manto-type mineralization has been identified along a corridor of 1.7km long and at least 300m wide.
  • Sonoro Metals Corp., reported results from the initial 13 drill holes from its Cerro Caliche project in Sonora. Significant intersections are: Hole SCR-002 with 27.43m of 0.6 g/t Au and 7 g/t Ag; Hole SCR-003 with 30.48m of 0.5 g/t Au and 8 g/t Ag; Hole SCR-004 with 39.62m of 0.9 g/t Au and 9 g/t Ag, including 6.09m of 2.9 g/t Au and 20 g/t Ag; Hole SCR-005 with 10.67m of 0.7 g/t Au and 21 g/t Ag, and 10.67m of 0.6 g/t Au and 1 g/t Ag; Hole SCR-006 with 10.67m of 1.2 g/t Au and 21 g/t Ag, including 6.1m of 2 g/t Au and 26 g/t Ag; Hole SCR-007 with 22.86m of 0.9 g/t Au and 13 g/t Ag, including 4.57m of 2.2 g/t Au and 20 g/t Ag; and SCR-008 with 36.58m of 0.5 g/t Au and 4 g/t Ag. “The drilling has further confirmed that mineralization in the Los Japoneses zone remains open in all directions, including at depth.”
  • Minaurum Gold Inc., discovered two new vein zones at its Alamos Silver project in Sonora: the San Jose vein, a NNE trend structure hosted in a fault zone which can be traced for at least 3km long, and the Santa Rosa vein, a stringer-quartz veinlets structural zone that runs for at least 300m along strike. The discovery of the new veins was through its ongoing district-scale reconnaissance program. Sampling on the San Jose vein returned grades ranging from anomalous up to 1,995 g/t Ag, 2.5% Cu, and 1.9% Zn, while sampling on the Santa Rosa vein only retuned anomalous values.
  • Discovery Metals Corp., completed a 40 line-km ground magnetic survey at its Monclova project in Coahuila to cover three targets: Real Viejo with 23 lines spaced 50m apart, Corrales with 17 lines spaced 100m apart, and Soledad with 12 lines spaced 50m apart. “Results of the Real Viejo survey highlight a linear magnetic high parallel to the mapped mineralized and altered zone along the southern boundary of the Monclova intrusive complex centered on the Project. This suggests continuity of the alteration and/or mineralization along the contact and provides support for the holes planned to test this zone. Interestingly, similar magnetic high zones occur across the neighboring Corrales target. Both linear magnetic highs as well as linear lows are highlighted by the survey and represent prospective targets on the Project. Results at the northern Soledad grid also highlight similar geometries”.

ON MINING

  • Alio Gold Inc., reported Q3 production results from its San Francisco mine in Sonora. Alio produced 11.6K Oz Au and 3.9K Oz Ag at an AISC of $1,315 per Oz produced.
  • Americas Silver Corporation, produced 323K Oz Ag, 7.5M Lb Pb, and 7.9M Lb Zn during the Q3-2018 from its Cosala operations in Sinaloa and Galena Complex in Idaho.
  • Argonaut Gold Inc., announced Q3 2018 production results from their Mexican operations. At the El Castillo mine in Durango, Argonaut mined 2, 267,000 tonnes of 0.33 g/t Au, to produce 10.3K Oz Au and 4.8K Oz Ag (10.4K GEOs or Gold Eq Oz). At the San Agustin mine in Durango, the company mined 1, 747,000 tonnes of 0.34 g/t Au to produce 15.7K Oz Au and 52.9K Oz Ag (16.5K GEOs). At its La Colorada mine in Sonora, Argonaut mined 1.2M tonnes of 0.33 g/t Au to produce 7K Oz Au and 16.2K Oz Ag (7.3K GEOs).
  • Avino Silver & Gold Mines Ltd., milled 193, 645 tonnes during Q3 2018 to produce 2.2K Oz Au, 342K Oz Ag, and 992K Lb Cu (704.4K Oz Ag Eq) at an AISC of $11.15 per payable Oz Ag Eq.
  • Consolidated Zinc Limited, reported the October 2018 production from its Plomosas mine in Chihuahua. The company milled 237 tonnes of 12.9% Zn and 3.3 % Pb to produce 68.3K Lb Zn and 17.6K Lb Pb.
  • First Majestic Silver Corporation, released Q3 2018 production results from their Mexican operations. The table below shows the quarterly operating and cost parameters at each of the mining operations:

  • Fortuna Silver Mines Ltd., milled 262, 710 tonnes during Q3 2018 at grades of 1.6 g/t Au and 258 g/t Ag to produce 12.4K Oz Au and 1.99M Oz Ag, with metallurgical recoveries of 91% for Au and Ag.
  • Hecla Mining Company, released Q3 production results from its San Sebastian mine in Durango. During Q3 2018, Hecla produced 3.7K Oz Au and 522K Oz Ag.
  • Pan American Silver Corp, reported Q3 2018 production results from each of their mining operations. At La Colorada, Zacatecas the company produced 1.1K Oz Au and 2M Oz Ag. At its Dolores mine in Chihuahua, Pan American Silver produced 33.1K Oz Au and 1M Oz Ag.
  • Premier Gold Mines Limited, announced Q3 2018 production results from its Mercedes mine in Sonora. The company processed 159,608 tonnes of 3.52 g/t Au and 39 g/t Ag with metallurgical recoveries of 96.6% and 43.7% respectively, to produce 17.5K Oz Au and 88.4K Oz Ag at an AISC of $1,059 per Oz produced.
  • Santacruz Silver Mining , released Q3 2018 production results from their Mexican mining operations.  At Veta Grande, Zacatecas, the company processed 42,011 tonnes with 0.26 g/t Au, 77 g/t Ag,  0.8% Pb and 1.94 % Zn to produce  140 Oz Au, 62.2K Oz Ag, 590.8K Lb Pb and 952.4K Lb Zn. At El Rosario, San Luis Potosi, Santacruz processed 15,965 tonnes of 0.26 g/t Au, 0.2% Pb and 1.6% Zn to produce 85 Oz Au, 18.4K Oz Ag, 72.7K Lb Pb, and 467.4 Lb Zn.
  • Torex Gold Resources Inc., processed 1,246,000 tonnes with 2.6 g/t Au during Q3 2018 from its El Limon-Guajes Mine Complex in Guerrero. The quarterly production was 100.4K Oz Au with a metallurgical recovery of 89%.
  • US Antimony Corporation, released its September and October 2018 production results. In September, US Antimony produced 141.2 K Lb Sb and 1,394 tonnes of zeolites, while in October produced 123.5 Lb Sb and 1,065 tonnes of zeolites.

ON FINANCING

  • Auxico Resources Canada Inc., closed a non-brokered private placement for gross proceeds of $315K (Zamora project, Sinaloa).
  • GoGold Resources Inc., closed the US$12M sale of its Santa Gertrudis royalty with Metalla Royalty and Streaming Ltd. GoGold took US$6M of the US$12M sale price in common shares of Metalla, which represent 9.9% of the Metalla shares outstanding.
  • Impact Silver Corp., announced a non-brokered private placement to raise up to $1.5M to explore its Zacualpan project in Mexico State for additional high potential precious metals as well as Au-Cu targets.
  • Telson Mining Corporation, received $5M from Trafigura Mexico S.A. de C.V., for the second tranche of the loan agreement for the construction of its 1,000 tpd Tahuehueto mine in Durango.
  • Silver Spruce Resources Inc., consolidated its common shares and proposed to complete a non-brokered private placement to raise up to $1.5M. The consolidation of its common shares is one new share for five old shares.
  • Golden Minerals Company, reported revenue of approximately $1.9M in Q3 2018 related to the oxide plant lease and costs of approximately $0.7M related to the services Golden provides under the terms of the lease, for a net margin of $1.2M. Other operating income of $3.2 million included $3.0 million from the sale of Golden’s remaining interest in the Celaya project in Guanajuato to The Electrum Group LLC, as well as pro‐rated income from the farm‐out of the Company’s Zacatecas properties to Santacruz Silver. Exploration expenses were $1.1 million in the third quarter, reflecting increased exploration and project evaluation activities at the Santa Maria project in Chihuahua as well as other projects in Mexico.

 

ON RESOURCES AND DEVELOPMENT

  • Kootenay Silver Inc., designed a program of 15,000m of drilling over 62 holes aimed to expand resources along the extensions of its La Cigarra deposit in Chihuahua. The drilling program will be conducted on four target areas where the company believes there is untested potential to increase resources. “The plan would entail primarily exploration step out drilling of known mineralization and some infill drilling of the successful La Borracha program earlier this year”. “The four areas Kootenay plans to target are the La Borracha high grade (the mineralized trend located 1,000 meters northwest from the northern boundary of the Resource), the La Borracha Connection (connecting La Borracha with the San Gregorio area of the Resource), Gap (a very under drilled area between the main San Gregorio and Las Carolinas zones that currently comprise the Resource) and the Carolinas Extension (the strike extension of the Resource to the southeast)”.
  • Hecla Mining Company, released in-fill drilling results for its San Sebastian mine in Durango. The in-fill drilling was conducted in the central portion of the polymetallic zone along the Francine Vein. Additionally, exploration core drilling was also conducted toward shallower oxide mineralization along the West and East Francine vein areas, the recently discovered South Vein, and at the Esperanza Vein target area. At the Francine vein, the in-fill drilling program intersected high grade mineralization. Highlights include 1.37m of 591 g/t Ag, 4.8% Cu, 16% Pb and 13.5% Zn and 2.25m of 227 g/t Ag, 1.8% Cu, 3.5% Pb, and 6% Zn. The drilling also intercepted narrow but high-grade mineralization along the East Francine vein on new zones of vein-hosted oxide mineralization. Significant intersections are 1.46m of 485 g/t Ag and 0.3 g/t Au, and 2.83m of 299 g/t Ag and 2.2 g/t Au. Mineralization in this area is defined over 1,200 feet along strike and 800 feet down-dip and this new zone could represent an important new source of oxide mineralization. At the West Francine vein, the drilling program encountered also narrow intervals of high grade. Highlights include 0.64m of 1,791 g/t Ag and 0.62 g/t Au. Mineralization in this area is open laterally and at depth. Follow-up, offset drilling is in progress. At the Esperanza vein, exploration drilling commenced but results are pending. Reconnaissance RC drilling discovered a new blind vein under soil cover in the Saladillo Valley. This new vein, referred as the South vein, intercepted significant mineralized intervals such as 2.83m of 392 g/t Ag and 2.5 g/t Au, 2.86m of 187 g/t Ag and 0.93 g/t Au, and 2.86m of 174 g/t Ag and 1.24 g/t Au. Drilling for the remainder of the year will continue to focus on expanding resources and evaluate near-surface oxide mineralization at the West Francine Vein, South Vein, and Esperanza Vein areas.

ON DEALS AND CORPORATE ISSUES

  • Capstone Mining Corp., announced management changes and made reduction of its organizational structure to improve financial and operating performance and save approximately $5M per year in corporate general and administrative expenses (Cozamin mine, Zacatecas).
  • Defiance Silver Corp., and ValOro Resources Inc., signed a definitive merger agreement dated on November 5, 2018. The ValOro shareholders will receive 0.71 common shares of Defiance for each share of ValOro held. “Upon completion of the Transaction, the combined company will have approximately 119 million common shares outstanding, of which former shareholders of Defiance will own approximately 87% and the former shareholders of ValOro will own approximately 13%” (San Acacio project, Zacatecas).
  • Golden Goliath Resources Ltd., announced that Desarrollos Mineros El Aguila S.A. de C.V., a wholly subsidiary of Fresnillo plc, exercised the option agreement on its Uruachic project in Chihuahua by making a final payment of US$2.3M. Golden Goliath still holds a royalty on the several optioned properties in the Uruachic mining district.
  • Golden Reign Resources and Marlin Gold Mining Ltd., completed business combination to form Mako Mining Corp. Prior to the closing of the arrangement, the companies completed the amendment to the Gold Purchase Agreement with Sailfish Royalty Corp., and the Marlin reorganization.

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, banded quartz texture in a hot spring epithermal system in Durango, Mexico.  Photo by Miguel A Heredia.

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

Banded quartz epithermal vein

By Miguel A Heredia

During the 37th week of the year (September 10th to September 16th, 2018), at least 22 press releases were announced by companies working in Mexico, with ten informing on exploration results, six reporting on resources and developments, four communicating deals and corporate issues, and two announcing production results.  ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Sonora, Riverside and Kootenay announced exploration results from its Cecilia and La Mina projects respectively. In Chihuahua, Harvest Gold began preparations to drill test its Cerro Cascaron project and Sable Resources released drilling results from its Margarita project.  In Sinaloa, Auxico reported sampling results from its Zamora project In Durango, Gainey announced a 1st phase of exploration at its Las Margaritas project, Orex commenced fieldwork exploration on its San Luis del Cordero project, and Prospero reported drilling results from its Buenavista project. In Zacatecas, Advance Gold started a phase 2 drilling program at its Tabasquena project. In Jalisco, Evrim announced trench and soil results from its Cuale project.  ON MINING, Starcore reported Q1 2018 results from its San Martin mine in Queretaro. US Antimony announced plans to increase its production of Sb, Au and Ag in Mexico. ON FINANCING, no relevant news. ON RESOURCES AND DEVELOPMENT, In Sonora, SilverCrest and Premier Gold released drilling results from its Las Chispas and Mercedes projects respectively. Aura provided an update at its Aranzazu mine in Zacatecas. Candelaria announced a PEA for its Pinos Gold project in Zacatecas.   McEwen reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa.  ON DEALS AND CORPORATE ISSUES, Evrim and First Majestic agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. New Gold announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi). Levon announced results from its annual general meeting (Cordero project, Chihuahua). Vangold withdrew its submission to acquire the San Carlos property in Guanajuato (El Pinguico mine, Guanajuato).

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Riverside Resources Inc., completed 11 N-S lines for soil sampling which returned strong multi-elements anomalies with Au, Pb, Cu, and other key elements. These results along with previous exploration work have outlined four new target areas on its Cecilia project in Sonora. Target 1 is a 4km long by 300m wide target where previous rock sampling has found up to 2 g/t Au in silicified conglomerates , but the soil anomaly is open in both directions beyond the 4 Km and more than 800m wide. Target 2 is a NE trending Ag, Pb, Au, Zn, Sb, Hg and Cu soil anomaly over 2km long and 600m wide in rock cracks with faults and host veining displaying a series of NW striking feeder dikes. Target 3 is a 1km long by 500m wide Au-Zn with minor Ag, Cu, Pb and Bi soil anomaly associated to a N-S trending fault system intersecting Paleozoic limestones. This target is also along the border edge of a magnetic high reported in a regional government geophysics survey likely associated with Pre Cambrian granitic basement.  Target 4 contains “high-grade gold samples in soils and alteration with jasperoid, silicification, and carbonate veining of the Paleozoic limestone that gives a potential limestone hosted Au with anomalous soil assays of Zn, Pb, Ag and Mn”.
  • Kootenay Silver Inc., announced that its partner Capstone Mining Corp., has commenced an exploration program on its la Mina project in Sonora. The exploration program will consists of detailed mapping and rock chip / stream sediment sampling to generate potential drill targets.
  • Harvest Gold Corporation, reported that Evrim Resources, its JV partner and operator on its Cerro Cascaron project in Chihuahua, has mobilized an advance team to the site to start preparations to drill test the property. The drill program, expected to commence at the end of September, will consist of 3,000 m to test the Cascaron Gold targets and the Cascarita Silver targets.
  • Sable Resources, released drilling results from its Margarita project in Chihuahua. Significant intersections are from hole M-DDH-18-09 with 6.5m of 111 g/t Ag Eq, including 3.5m of 153 g/t Ag; hole M-DDH-18-11 with 11.3m of 252 g/t Ag Eq, including 1.3m of 889 g/t Ag Eq; hole M-DDH-18-12 with 12.7m of 98 g/t Ag Eq, including 1.8m of 244 g/t Ag Eq. Additionally, Sable identified a low-grade stockwork style of mineralization evident in numerous holes. The most significant results are hole M-DDH-18-03 with 44.13m of 50 g/t Ag Eq, including 6.95m of 142 g/t Ag Eq; hole M-DDH-18-07 with 7.6m of 54 g/t Ag Eq, and hole M-DDH-18-12 with 21.35m of 37 g/t Ag Eq. “With the first stage of drilling now complete we will evaluate our results and formulate a plan for stage 2 drilling targeting further extensions of Margarita and the other adjacent parallel veins”.
  • Auxico Resources Canada Inc., reported high-grade sampling results from its Zamora project in Sinaloa. Significant results are 0.80m of 4Kg Ag and 29.2 g/t Au at La Franca claim, 600m southwest of the Campanillas mine along a structure that can be followed by at least 600m along strike. Mineralization consists of breccia-stockwork veining containing galena, sphalerite and possible silver sulphosalts, malachite and chalcopyrite. Other significant results are from Aguamas area where some channel samples returned 0.65m of 6.38 g/t Au and 23 g/t Ag; 0.70m of 14.7 g/t Au and 34 g/t Ag; 0.50m of 3.55 g/t Au and 108.7 g/t Ag; and 1.60m of 6.64 g/t Au and 220 g/t Ag.
  • Gainey Capital Corp., announced a phase 1 exploration program on its Las Margaritas project in Durango. Las Margaritas is a mineralized vein system that extends at least 1.5Km along strike and averages 1-2m in width. The 1st phase exploration program will consists of detailed mapping and sampling with the objective to identify prospective areas to generate the best drill targets.
  • Orex Minerals Inc., commenced an exploration program on its San Luis del Cordero project in Durango, where the company has an option to acquire 100% interest in the property from Exploraciones del Altiplano S.A. de C.V. Mineralization at San Luis del Cordero is characterized by skarn and epithermal vein Ag-Cu-Zn as a result of Tertiary-quartz-feldspar-porphyry intrusions affecting Jurassic and Cretaceous limestones, calcareous sandstones and shales. The project has seen several phases of exploration from different mining companies, including 16,400m drilled in 62 holes in the period 2000-2016. The property contains indicated resources of 662.6K tonnes of 121 g/t Ag, 0.78 % Cu and 1.1 % Zn for a total of 5.1M Oz Ag Eq, and inferred resources of 2, 785,300 tonnes of 144 g/t Ag, 0.75 % Cu and 1.45 % Zn, for a total of 24.4 M Oz Ag Eq.
  • Prospero Silver Corp., reported core drilling results from eleven holes totaling 2, 811m drilled at its Buenavista project in Durango. Mineralization drilled-tested at Buenavista consists of structurally controlled epithermal veins centered on a rhyolite dome complex. “All holes cut anomalous silver mineralization, with a best interval of 1.6m @ 353g/t Ag from 185.6m downhole, within a broader interval of 49m @ 43g/t Ag in hole BVF-18-05”.
  • Advance Gold Corp., started a second phase drilling program at its Tabasquena project in Zacatecas to test the La Tabasquena epithermal vein at a depth of 1,800m. Phase 2 will test below the gold discovery hole of phase 1. It also will test some of the potential feeder type targets and all of the veins below the oxide zone which goes down to an estimated 175 metres below surface.
  • Evrim Resources Corp., announced new trench and soil results from its Cuale project in Jalisco. Highlight results include the trench 2 which was extended from 29.4m to 184.1m with an average grade of 0.85 g/t Au, including 59.1m of 1.79 g/t Au, and including 21.6m of 4.18 g/t Au; Trench 4 , extended from 106.2m to 156.2m with an average grade of 9.57 g/t Au, including 64.6m of 20.85 g/t Au, and including 7.5m of 163.31 g/t Au; and Trench 5 which contains 174m of 0.62 g/t Au, including 70m of 1.16 g/t Au, and including 40m of 1.45 g/t Au. A soil grid with 200 metre spacing outlined a Au anomaly over the entire La Gloria prospect with grades >0.01 g/t Au of 2,300m by 800m with a central corridor of 1,700m by 300m >0.1 g/t Au extending north of the trenched area.  “The soil anomaly at higher elevation correlates with elevated silver, antimony, molybdenum, arsenic and low contents of manganese and zinc.  At lower elevations gold correlates with elevated copper, tellurium, arsenic, bismuth and iron”. “The new trench results expand the La Gloria zone to the northwest and the east with consistent gold mineralization.  Soil sampling indicates the La Gloria system footprint is measurably larger with the potential to host a significant deposit and/or additional mineralized centers within the La Gloria prospect”.   “The soil survey has a distinctive high sulphidation signature centred on a large gold in soil anomaly that is approximately 2,300 metres by 800 metres.  The results indicate a potential major system with significant upside for additional mineralized centers within the La Gloria prospect.”

ON MINING

  • Starcore International Mines Ltd., reported Q21 2018 results from its San Martin mine in Queretaro. Starcore milled 77,400 tonnes of 1.53 g/t Au and 49 g/t Ag to produce 3.3K Oz Au and 72.7K Oz Ag, with an all-in sustaining cost of US$ 1,215 for Eq Oz. Metallurgical recoveries were 88.1% for Au and 59.6% for Ag.
  • US Antimony Corporation, produced 131,184 Lb Sb and 1,244 short tonnes of zeolites in August 2018 and announced plans to increase its production of Sb, Au and Ag in Mexico. At its Wadley mine in San Luis Potosi, the general level will be reactivated by cleaning up the waste to provide access and transportation of the lower grade for the mill. At Sierra Guadalupe in Zacatecas, the Santa Monica drift will be restarted. The ore is primarily sulphides and can be upgraded to 60-70% Sb flotation concentrate at its Puerto Blanco Mill to make antimony tri-sulphide. At the Soyatal district in Queretaro, a buying program will be started to purchase direct shipping ore for its Madero smelter. The construction of the cyanide leach plant for the Los Juarez Au-Ag-Sb should allow pilot testing to commence during Q4 2018. The company also closed an agreement purchase, dismantle and transport an antimony plant from Reynosa, Tamaulipas. When installed, the equipment from the Reynosa plant will increase the capacity of the Madero Smelter in Coahuila to approximately 30,000,000 Lb per year of antimony oxide.

ON FINANCING

  • No relevant news.

 

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc., released drilling results from its Las Chispas project in Sonora and expanded the high grade at Babicanora Norte vein. Drill holes have intersected additional high-grade Ag-Au mineralization at Babicanora Norte vein which is located about 300m NE of Babicanora vein and apparently is connected with the Granaditas area which contains multiple veins to the southeast. The most significant results are 1.8 m of 15.11 g/t Au and 1,718 g/t Ag or 2,851 g/t Ag Eq, 1.6 m of 8.96 g/t Au and 1,078 g/t Ag or 1,750 g/t Ag Eq and 1.5 m of 4.22 g/t Au and 687 g/t Ag or 1 Kg Ag Eq. The drilling results of Babicanora Norte vein will be part of the upcoming updated resource which will include 8 of the 30 identified veins in the district.
  • Premier Gold Mines Limited, reported drilling results from the Rey de Oro deposit at its Mercedes mine in Sonora. Highlights results include hole UG-R018-013 which returned 12.64 g/t Au and 240.1 g/t Ag across 29.65 m (TW of 13.5 m), hole UG-R018-015 with 0.41 g/t Au and 3120.0 g/t Ag (91.0 oz/ton) across 1.52 m (TW of 1.06 m), and hole UG-R018-012 with 17.00 g/t Au and 321.0 g/t Ag across 1.1 m (TW of 0.8 m) and 4.47 g/t Au and 138.5 g/t Ag across 8.25 m (TW of 6.1 m). “Underground drilling at Rey de Oro consists of step-out and delineation drilling of this recently developed horizon. This drilling continues to intersect some of the widest vein intercepts on the property and demonstrate the potential to continue to extend the mine life at Mercedes”.
  • Aura Minerals Inc., provided an update at its Aranzazu mine in Zacatecas. Aura has obtained all the necessary permits and initiated the construction of the new tailings disposal system. “The Company expects the Aranzazu mine to achieve commercial production later this year and to achieve the average processing of 2,600 tonnes per day shortly thereafter”.
  • Candelaria Mining Corp., announced a PEA for its Pinos Gold project in Zacatecas. Highlight results from the PEA indicate an after tax net present value (NPV) of US$ 12M using a 5% discount rate, an after tax internal rate return (IRR) of 25%, and a 7 years life of mine with projected gold equivalent ounce (“GEO”) production of 89,000. The PEA includes a mineral resource estimate as of September 13, 2018. Measured resources (Dump) are 85,847 tonnes of 1.6 g/t Au and 83 g/t Ag for a total of 4,444 Oz Au and 229K Oz Ag. Indicated resources are 175,697 tonnes of 3.6 g/t Au and 47 g/t Ag for a total of 20.6K Oz Au and 268K Oz Ag. Inferred resources are 529,267 tonnes of 3.6 g/t Au and 48 g/t Ag for a total of 60.7K Oz Au and 811K Oz Ag. Average recovery for Au and Ag are 90 and 80% respectively. The company plans to have an annual production of 12,700 GEO with an overall average direct cash cost of %US 666 per GEO.
  • McEwen Mining Inc., reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa, combining mineralized sources from five locations that will be developed in two distinct process plant construction phases. McEwen plans to produce 47K Oz Au Eq per year.
  • Bacanora Lithium plc., announced plans to start the mine construction on its Sonora Lithium project in Sonora. $US 420M will be invested in the first phase and is expected to begin to operate in 2020.

ON DEALS AND CORPORATE ISSUES

  • Evrim Resources Corp., and First Majestic Silver Corp., agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. First Majestic has completed its 100% earn-in for both projects. First Majestic has paid $1.5M in cash to Evrim and has granted a 2% NSR in the case of Ermitaño project and 1.5% NSR in the case of Cumobabi project.
  • New Gold Inc., announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi).
  • Levon Resources Ltd., released results from its annual general meeting (Cordero project, Chihuahua).
  • Vangold Mining Corp., withdrew its submission to the TSX Venture Exchange to acquire the San Carlos property in Guanajuato.

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, a banded quartz vein in an intermediate sulphidation epithermal project in Zacatecas, Mexico.  Photo by Miguel A Heredia.

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