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United States
East Tennessee Complex

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 Location:
11 km W from Jefferson City, Tennessee, United States

  Address:
2421 Old AJ Highway
Strawberry Plains
Tennessee, United States
37871
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Fax+1 865 932 2488
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  • Overview
  • Owners
  • Geology
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
Mining Method
  • Room-and-pillar
Processing
  • Filter press plant
  • Dewatering
  • Flotation
  • Dense media separation
East Tennessee consists of a processing plant and three underground zinc mines: Young, Coy and Immel. Ore from the three mines is processed into zinc concentrate at the Young mine site.

In July 2019, Nyrstar’s operating business became majority owned by Trafigura. Production numbers have not been publicly available since then.

As an immediate response to fatalities incident, the East Tennessee mine ceased work in all mines with high backs of 35 foot or higher and a new mining method is currently being implemented. Production levels are expected to ramp up to normal levels during FY2022.
Latest NewsTrafigura publishes 2021 annual results showing a record performance with the company well positioned for future growth     December 8, 2021


Owners

Source:
CompanyInterestOwnership
Trafigura Group Pte Ltd. 100 % Indirect
Trafigura Group Pte Ltd. (“Trafigura”), a market leader in the global commodities industry, has today become the majority owner of the operating business of Nyrstar, a global multi-metals business.

Deposit Type

  • Mississippi Valley Type


Summary:

East Tennessee Mines are comprised of three operating mines: Coy, Immel and Young, located approximately 30 kilometres north-east of Knoxville, Tennessee. Zinc mineralisation occurs in Mississippi Valley Type (‘MVT’) deposits as open-space fillings of breccias and fractures within limestones and dolomites.


Mining Methods

  • Room-and-pillar


Summary:


Crushing and Grinding


Processing

  • Filter press plant
  • Dewatering
  • Flotation
  • Dense media separation

Flow Sheet: Subscription required

Summary:

Ore from the three mines is processed into zinc concentrate at the Young mine site. The East Tennessee zinc mine complex has a close association with Nyrstar’s Clarksville smelter.

The main operations associated with the process plant are:
Primary Crushing
Secondary Crushing
Heavy Media Separator
Rod/Ball Mill
Flotation
Thickener/Filter
Tailings.

Recoveries & Grades:

CommodityParameter20182017201620152014
Zinc Recovery Rate, % 94.795.194.39192
Zinc Head Grade, % 3.63.483.613.573.53

Production:

CommodityProductUnits201820172016201520142013
Zinc Metal in concentrate kt 766662646371
Zinc Concentrate kt 123107101104101113
Subscription required - Subscription is required.

Operational Metrics:

Metrics201820172016201520142013
Tonnes milled 2,237 kt of ore2,003 kt of ore1,829 kt of ore1,985 kt of ore1,955 kt of ore2,019 kt of ore

Reserves at December 31, 2018:
A cut-off grade of 2.5% Zn at Coy, 2.5% Zn at Immel and 1.9% Zn at Young, has been applied in the estimation of Mineral Resources.

CategoryTonnage CommodityGrade
Proven 0.34 Mt Zinc 3.3 %
Probable 5.27 Mt Zinc 4.4 %
Proven & Probable 5.61 Mt Zinc 4.4 %
Measured 0.45 Mt Zinc 3.5 %
Indicated 7.04 Mt Zinc 4.4 %
Measured & Indicated 7.49 Mt Zinc 4.3 %
Inferred 24.41 Mt Zinc 3.7 %

Operating Costs:

Units2018201720162015
Direct operating costs ($/t milled) USD 38403842


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 12, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
Annual Report 2018
Fact Sheet 2018
Press Release 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Fact Sheet 2017
Year-end Mineral Reserves 2017
Press Release 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Annual Report 2014
Corporate Presentation 2010
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News:

NewsDate
Trafigura publishes 2021 annual results showing a record performance with the company well positioned for future growth December 8, 2021

Aerial view:

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