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

Great Panther Silver Reports Second Quarter 2018 Production Results and Provides Coricancha Update

GPR Press Release 2018..

VANCOUVERJuly 10, 2018 /CNW/ – GREAT PANTHER SILVER LIMITED (TSX: GPR; NYSE American: GPL) (“Great Panther”; the “Company”) announces production results for the second quarter (“Q2”) 2018 from its two wholly-owned Mexican silver mining operations: the Guanajuato Mine Complex (“GMC”), which includes the San Ignacio Mine, and the Topia Mine in Durango.

ENDEAVOUR SILVER PRODUCES 1,355,895 OZ SILVER AND 13,674 OZ GOLD (2.4 MILLION OZ SILVER EQUIVALENTS) IN THE SECOND QUARTER, 2018 July 10, 2018

EndeavourSilver_news.18-17

VANCOUVER, British Columbia, July 10, 2018 (GLOBE NEWSWIRE) — Endeavour Silver Corp. (TSX:EDR) (NYSE:EXK) reports its production results for the Second Quarter, 2018 from the Company’s three silver-gold mines in Mexico: the Guanaceví mine in Durango state and the Bolañitos and El Cubo mines in Guanajuato state.

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

By Miguel A Heredia

During the 27th week of the year (July 2nd to July 8th, 2018), at least 16 press releases were announced by companies working in Mexico, with five informing on exploration results, four communicating deals and corporate issues, four  announcing financing rounds, and two reporting on resources and development.  ON MEXICO ISSUES, Andres Manuel Lopez Obrador won the election for President with 53.5% of the vote.  ON EXPLORATION, In Baja California, One World Lithium announced exploration results from its Salar del Diablo project. In Sinaloa, Goldplay provided an exploration program update of their El Rosario, San Marcial, and El Habal properties. In Chihuahua, Sable resources reported exploration results from its Margarita project and Silver Spruce filed a drill permit for its Pino de Plata project. In Zacatecas-Durango, Canasil reported drilling results from its La Esperanza project. ON MINING, no relevant information. ON FINANCING, Alio Gold reported the restructuration of its existing debt. Bacanora Lithium announced a US$ 150M debt funding and Prize Mining a private placement for $ 4M.  Maverix acquired a royalty portfolio from Newmont. ON RESOURCES AND DEVELOPMENT, Azure released initial mineral resource estimate for its Oposura project in Sonora. Sierra Metals filed a NI 43-101 Technical Report on its Bolivar mine in Chihuahua.  ON DEALS AND CORPORATE ISSUES, Mexus and MarMar holdings announced the termination of its JV agreement. Aztec Mining announced results of its annual general meeting. Golden Reign and Marlin Gold entered into further mutual extension to combine business.

ON MEXICO ISSUES

  • Andres Manuel Lopez Obrador was elected President of Mexico with 53.5% of the vote.

ON EXPLORATION

  • One World Lithium Inc., reported geochemical results from its Salar del Diablo project in Baja California. The average lithium value was calculated as 83.65 ppm with the median being 75.75 ppm. Sodium values as high as 3% and potassium as high as 1.9% confirm the distribution of anomalous lithium values. The company is expecting in this month a geophysical report that along with the geochemical results will be used to plan 4,000m of drilling to test coincidental targets.
  • Goldplay Exploration Ltd., provided an update of its exploration program at their El Habal and San Marcial properties in Sinaloa. At the target A, within El Habal property, the company identified a highly anomalous gold mineralized zone covering a 1 square km area that remains open along strike and down dip. Based on the geological mapping, underground and trenching sampling and a CSMAT / Mag surveys, Goldplay initiated a 2-phase diamond drilling program at Zone A.  The phase 1 drilling program includes 2,000m of drilling and is expected to be completed by mid-July. Once all the results are received and interpreted, the company will initiate the second phase. At San Marcial, the company completed a detail LIDAR topography survey on the property. It also is reviewing 52 drill holes and is currently sampling and re-sampling the core. Additionally, Goldplay received approval from the Ejido to commence a surface exploration program and is planning to initiate a drilling program in new target areas.
  • Sable Resources Ltd., identified two new epithermal veins at its Margarita project in Chihuahua. The Juliana vein crops out for over 650m along strike and seems to merge with the Margarita structure. Previous sampling on this structure returned 405 g/t Ag. The Marie vein crops out for over 650m along strike of which 400m are within Sable´s mining concession
  • Silver Spruce Resources inc., filed the Informe Preventivo at SEMARNAT to obtain the permits for up to 30 drill sites for its Pino de Plata project in Chihuahua.
  • Canasil Resources Inc., announced drilling results from its La Esperanza project in Zacatecas-Durango. A drill hole to intercept La Esperanza vein has been completed to a downhole depth of 347m, returning a vein intercept over a core length of 14m (12.15m true width) displaying banded quartz textures with disseminated sulphides. Assays results are pending.

ON MINING

No relevant news.

ON FINANCING

  •  Alio Gold Inc., reported that it has restructured its existing debt, which was scheduled to be repaid in December 2018. Its debt of $ 15M will be repaid in twelve quarterly payments of $ 1.25M with accrued interests, ending in June 2021 (San Francisco mine, Sonora).
  • Bacanora Lithium plc., announced a US$ 150M debt funding secured for the development of its Sonora lithium project.
  • Prize Mining Corp., announced a private placement for $ 4M. Net proceeds will be used on its manto Negro project in Coahuila.
  • Maverix Metals Inc., completed the acquisition of 50 royalties from Newmont. To complete the transaction, Maverix issued  to  Newmont 60M of common shares, 10M of common shares warrants and made a cash payment of $US 17M (La Colorada mine, Zacatecas).

 

ON RESOURCES AND DEVELOPMENT

  • Azure Minerals Limited, released the initial mineral resource estimate as at June 2018 for its Oposura project in Sonora. Total indicated mineral resources are 2.1M tonnes of 17.2 g/t Ag, 2.9% Pb and 5.3% Zn for a total of 1.2M Oz Ag, 135.7 M Lb Pb and 247.5M Lb Zn. Total inferred mineral resources are 0.8M tonnes of 16.5 g/t Ag, 2.5% Pb, and 4.3% Zn for a total of 0.4M Oz Ag, 47.3M Lb Pb, and 80.6M Lb Zn. The company also announced that mineral resource remains open for extensions with further drilling planned for 2018. A PEA is in progress, including an open pit and underground stope design studies, and is expected to complete it by September 2018.
  • Sierra Metals Inc., filed a NI 43-101 Technical Report on resources and reserves for its Bolivar mine in Chihuahua. Total probable reserves are 7.9M tonnes of 0.25 g/t Au, 19 g/t Ag, and 0.86% Cu. Total indicated resources are 13.3 M tonnes of 0.29 g/t Au, 22 g/t Ag, and 1.04% Cu, while total inferred resources are 8M tonnes of 0.42 g/t Au, 22 g/ Ag and 0.96% Cu.

ON DEALS AND CORPORATE ISSUES

  • Mexus Gold US and MarMar Holdings S.A. de C.V., announced the termination of its JV agreement. It has been certified by both Sonora and Coahuila´s attesting officials (Santa Elena mine, Caborca, Sonora).

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, potassic alteration in a porphyry copper system in Jalisco, Mexico. Photo by Miguel A Heredia.

 

Santacruz Silver Discovers Three High Grade Veins During Initial Holes of Phase 1 Drilling of Veta Grande Property, Zacatecas

santacruz-NR-2018-07-09

Vancouver, B.C. – Santacruz Silver Mining Ltd. (TSX.V:SCZ) (the “Company” or “Santacruz”) reports initial Phase I drill results from ongoing drill program at the Garcia and Armados mines that form part of the Company’s Veta Grande Project located in the Zacatecas mining district, Zacatecas, Mexico. The objective of the drill program is to better define the down dip extension of the Veta Grande and Armados veins through surface and underground core drilling. To date ten drill holes totaling 3,323 meters of core drilling has been competed on the property and the Company has received results for the first six drill holes.

SIERRA METALS ANNOUNCES POSITIVE PRELIMINARY ECONOMIC ASSESSMENT RESULTS FOR A 67% OUTPUT EXPANSION AT ITS BOLIVAR MINE IN MEXICO TO 5,000 TONNES PER DAY YIELDING A RETURN ON INVESTMENT OF 550%

Sierra-Metals-09072018

TORONTO, July 9, 2018 /PRNewswire/ – Sierra Metals Inc. (TSX: SMT) (BVL: SMT) (NYSE AMERICAN: SMTS) (“Sierra Metals” or “the Company”) is pleased to report the results of a Preliminary Economic Assessment (“PEA”) regarding the Company’s Bolivar Mine, located in Chihuahua State, Mexico. The PEA is based on technical inputs from various independent consulting groups, including; SRK, Redco, Anddes and Transmin.