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India
Zawar Mine

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 Location:
0 km NW from Zawar, India

  Address:
Yashad Bhawan
Udaipur
India
313004
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Longitudinal open stoping
  • Sub-level open stoping (SLOS)
  • Transverse open stoping
  • Paste backfill
Production Start...
Mine Life15 years (as of Jan 1, 2021)
Zawar Mines consists of four mines namely Mochia, Balaria, Zawar Mala and Baroi.

A successful public hearing was conducted during the year for the Expansion of Zawar Mines from 4.8 million TPA (Tones per annum) to 6.5 million TPA and Beneficiation from 4.8 million TPA to 7.3 million TPA.


Owners

Source: p. 7,78
CompanyInterestOwnership
Government of India 29.5 % Indirect
Vedanta Resources plc. 45.23 % Indirect
Hindustan Zinc Limited (HZL) owns and operates a fully integrated zinc-lead business. HZL is one of the world's largest integrated zinc-lead producer by volume. Vedanta Limited, an India-listed susidiary of Vedanta Resources Limited, owns 64.9% of the share capital of HZL, while the Government of India remains an equity partner and holds a 29.5% stake. HZL is listed on Indian stock exchanges (NSE and BSE).

Contractors

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Deposit Type

  • Mississippi Valley Type


Summary:

All the deposits at Zawar are hosted by epizonal metamorphosed dolomites of the Tiri Formation, Aravalli Supergroup (1.7 – 1.8 Ma), either in north-south structures (Post-Aravalli orogeny) or in W-E structures (Delhi orogeny). The mineralisation comprises sphalerite and galena as disseminations or veinlets in bodies defined by grade contacts only. Silver mineralisation has been concentrated in the upper levels of the mines which have been depleted either by historical mining of earlier modern mining. The deposits are either tabular, steeply northeast-dipping and west-plunging (Mochia and Balaria), or complex-shaped lenses following the Northern plunge of a fold-axis (Zawarmala). At Baroi, mineralisation is largely disseminated and organised in poorly constrained Northwest dipping bodies.

The deposits are considered to be syn-metamorphic stratabound carbonate-hosted (dolomite) lead-zinc deposits (Mississippi Valley Type in the wider sense). There are minor cross cutting post-mineralisation intrusives of Precambrian and Cretaceous age. The deposits have the following general geometry:
• Mochia Central: strike: 1,050m E – W, consisting of 8 lenses; lenses strike 60 - 200m; Dip 80-85º towards the S; Width 2-45m; dominant plunge of 50-60º towards the SW.
• Mochia West: strike: 1,800m E – W, consisting of 32 lenses; lenses strike 60 – 150m; Dip 80-85º towards the S; Width 2 – 20m; dominant plunge of 50-60º towards the SW.
• Balaria Central: strike: 1,05 ........


Mining Methods

  • Longitudinal open stoping
  • Sub-level open stoping (SLOS)
  • Transverse open stoping
  • Paste backfill


Summary:

Mining methods implemented at the four operations are the same with an underground sub level open stoping mine extraction with backfill.

Sub-level Open Stoping (Longitudinal & Transverse)
The litho-environment is competent and self-supporting and thus allows for adoption of open stoping mining method. Longitudinal & Transverse sub-level open stoping method of mining shall be continued with some variants for optimizing mine development quantum, enhancing mechanization, productivity and optimizing ore recovery during Mining Plan and Conceptual Mining period. The various modifications for improvement are as follows:
- Ramp connectivity from Surface at all mines, connecting various levels & sub-levels thus allowing high level of mechanization for development, drilling and ore hauling. The decline from surface allows greater flexibility in operation as it is possible to lower down mining equipment through it. It will enable additional ore hoisting capacity and faster man & material movement to UG location.
- Use of remote control LHD for mucking operation allowing mining of ore being blocked in trough pillars and improving blasted ore recovery into stopes.
- Hauling of ore / waste from underground to surface through 60T/30T/20T LPDTs.
- Sublevel stoping with post backfilling.

Mochia Mine
The sequence of stoping involves creation of 80 m wide stopes leaving 20m/25m wide pillars in between two stope panels up to 57mRL. The stopes b ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityProductUnits2022202120202019201820172016
Zinc Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required888573
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required513.4
Lead Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead / Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,864,587 t2,176,111 t1,770 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4.7 Mt2.7 Mt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2.9 Mt2.06 Mt1.46 Mt
Annual mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at March 31, 2022:
The Mineral Resources are reported at a ZnEQ COG of:
- Balaria 3.36%;
- Baroi 2.56%;
- Mochia 2.67%;
- Zawarmala 3.44%.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 37.9 Mt Zinc 2.8 % 1,062 kt
Proven & Probable 37.9 Mt Lead 1.2 % 452 kt
Proven & Probable 37.9 Mt Silver 23 g/t 28,160 koz
Measured & Indicated 36.8 Mt Zinc 3.4 % 1,236 kt
Measured & Indicated 36.8 Mt Lead 2 % 726 kt
Measured & Indicated 36.8 Mt Silver 28 g/t 33,532 koz
Inferred 79.3 Mt Zinc 3.6 % 2,852 kt
Inferred 79.3 Mt Lead 2.1 % 1,695 kt
Inferred 79.3 Mt Silver 34 g/t 87,051 koz
Total Resource 116.1 Mt Zinc 3.5 % 4,088 kt
Total Resource 116.1 Mt Lead 2.1 % 2,421 kt
Total Resource 116.1 Mt Silver 32 g/t 105,583 koz



Heavy Mobile Equipment as of July 20, 2022:
HME TypeModelSizeQuantityStatus
Drill ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Drill ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Grader ....................... Subscription required ....................... Subscription required Existing
Jumbo ....................... Subscription required 45 mm ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Load-Haul-Dump (LHD) ....................... Subscription required 10 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Load-Haul-Dump (LHD) ....................... Subscription required 17 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Load-Haul-Dump (LHD) ....................... Subscription required 10 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Load-Haul-Dump (LHD) ....................... Subscription required 16 t ....................... Subscription required Existing
Personnel Carrier ....................... Subscription required ....................... Subscription required Existing
Personnel Carrier ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Scaler ....................... Subscription required ....................... Subscription required Existing
Scissor Lift ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (underground) ....................... Subscription required 20 t ....................... Subscription required Existing
Truck (underground) ....................... Subscription required 6 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (underground) ....................... Subscription required 20 t ....................... Subscription required Existing
Truck (underground) ....................... Subscription required 60 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (underground) ....................... Subscription required 30 t ....................... Subscription required Existing
Truck (underground) ....................... Subscription required 20 t ....................... Subscription required Existing
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Integrated Report 2022
Other 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2018
Annual Review 2018
Annual Report 2017
Annual Review 2017
Annual Review 2016
Annual Report 2015
Annual Review 2013
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