Northern Vertex Mining Corp. (TSX-V: NEE) (OTC Nasdaq Intl.: NHVCF) is pleased to announce, for the third consecutive month, increased gold and silver production totaling 2,868 gold equivalent ounces (2,655 oz gold and 14,940 oz silver) during May from the Moss Gold Mine, located in Northwest Arizona. See table below for details of operating results for May 2019, April 2019 and Nine Months ended March 31, 2019.
Kenneth Berry, President and CEO, states: “We are pleased with the continued increase in gold and silver production at the Moss Mine. Building on the achievements realized by our operational team over the past few months, yields have significantly improved and are reflected in the increased gold and silver production. In addition, we have now stacked more than 30,703 oz’s of contained gold which sits in inventory on the leach pad. Based on metallurgical work from our original 125,000 tonne pilot heap, our feasibility and from a recently established column testing program, we believe we will recover in the range of 24,000 to 26,000 ounces of gold from our heap inventory over the coming months, in addition to ounces placed on the pad each month.”
Operating Results for May 2019, April 2019 and Nine Months Ended Year to Date:
|One Month Ended
May 31, 2019
|One Month Ended
April 30, 2019
|Nine Months Ended
March 31, 2019(1)
|Ore mined (tonnes)||143,580||146,555||1,423,890|
|Waste mined (tonnes)||445,946||520,733||2,608,396|
|Total mined (tonnes)||589,526||667,289||4,032,286|
|Strip ratio (waste/ore)||3.11||3.55||1.83|
|Tonnes stacked per day (average)||6,348||6,094||5,646|
|Tonnes stacked per operating day||7,569||8,310||8,490|
|Tonnes stacked per operating hour||432||447||453|
|Contained gold ounces stacked||3,800||4,643||35,501|
|Contained silver ounces stacked||68,515||66,060||514,179|
|Gold grade (g/t)||0.60||0.79||0.71|
|Merrill Crowe recovery – gold (%)||78||79||81|
|Merrill Crowe recovery – silver (%)||89||92||93|
|Gold ounces produced||2,655||2,247||16,829|
|Silver ounces produced||14,940||12,885||67,204|
|Gold ounces sold||2,585||1,742||17,010|
|Silver ounces sold||9,851||6,236||49,796|
|(1) Includes pre-commercial production results|
Our strength is our people. Commencing in March, daily production and weekly staff meetings were implemented which have resulted in improvements in all aspects of our operation. Site safety and production goals are communicated to all employees and production data is shared in real time through daily reports and on information boards. In addition, the Company is investing in its team, with the initiation of an internationally recognized training program for all Supervisors and Managers.
The Company is also pleased to announce the following additions to our Operating Team:
Site Maintenance and Crushing Manager
Chief Mine Geologist
Electrical and Instrumentation Supervisor
The Company and its mining contractor, NAD Degerstrom have worked hard to improve product size, highwalls, benches, pit floors, blasting, reporting and safety. All areas are showing improvement. Work continues to improve costs, availability and efficiencies.
Our crushing plant has continued to excel. Crushing, agglomeration, and stacking of ore totaled 196,803 dry tonnes, with an hourly average of 432 tonnes per hour. Waste rock was crushed for blast hole stemming material that totaled 5,279 waste tonnes. Process maintenance has been significantly upgraded with the initiation of a preventative inspection and maintenance program.
Leach Pad/ Inventory
To date we have stacked 30,703 ounces of contained gold on the heap leach pad. To confirm gold/silver inventory, the Company has trenched to a depth of 25ft each in six areas of the pad which had not been under leach for 85 days. Initial test work has confirmed there are no dry areas, channeling is not occurring, and the pad is retaining its moisture as expected. Further results are pending. The ongoing column test program (using material derived from the actual hourly crushing sample collection program) show ultimate column recoveries of 80%+ for gold and 60%+ for silver. The Column work on crusher samples and the trench work will be used to optimize and shorten the recovery curves going forward, utilizing live ore panels for testing rather than bulk samples that are used in the feasibility. Every current test being run shows that we can outperform the feasibility curve with live pad conditions set to our column testing protocols.
Our Operations Team has made significant progress in identifying and correcting issues that have hampered the process plant since start up. Modifications to the filter presses, clarifiers and vacuum pump system are underway. These changes are expected to continue to stabilize the daily performance of the plant, increase recovery and result in increased production.
Phase III Mine Plan of Operations
The MPO (Final) was submitted to the Kingman Field Office of the BLM on May 22, 2019. There has been a high level of communication between the Company’s Environmental Consultants and the BLM Resource Specialists from both the Kingman and Lake Havasu Field Offices to address, explain and mitigate concerns regarding the potential impacts of the Company’s proposed expansion onto public lands.
The foregoing technical information contained in this news release has also been reviewed and verified by Mr. Joseph Bardswich, P.Eng., a director of the Company and a Qualified Person for the purpose of National Instrument 43-101 (Disclosure Standards for Mineral Projects).
About Northern Vertex Mining Corp.
Northern Vertex Mining Corp., the newest gold producer in the US, is focused on low cost gold and silver production at its 100% owned Moss Mine in NW Arizona. The Company has experience across all areas of operations, mine development, exploration, acquisitions and financing of mining projects. With operations at the flagship Moss Mine achieving commercial production the Company intends to consolidate additional producing or near-term production gold assets within the Western US. Through mergers and acquisitions Northern Vertex’s corporate goal is to become a mid-tier gold producer with over 200,000 ounces of gold production annually.
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