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Romania
Baita Plai Mine

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 Location:
50 km NW from Rosia Montana, Romania

  Address:
Sat Iacobeni,Str.Minelor Nr.20, Jud.
Suceava
Romania
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Copper
  • Lead
  • Zinc
  • Molybdenum
  • Bismuth
  • Silver
  • Gold
Mining Method
  • Cut & Fill
  • Open stoping
  • Longhole stoping
  • Backfill
Production Start...
Mine Life4 years (as of Jan 1, 2020)
The Baita Plai Polymetallic Mine (BPPM) commenced production in October 2020.

The Vast Resources made good progress in transitioning to a mechanised mining methodology, culminating in the commencement of long-hole stopping in calendar Q3 2022. This together with the completion of a second milling circuit in June 2022, will allow a significant increase in production at the mine. BPPM commenced molybdenum concentrate production in August 2022.
Latest NewsReport on Technical Programme for Baita Plai Mine - Exploration Target for Mineral Resource upgrade and establishment of an Ore Reserve     February 27, 2023


Owners

Source: p. 7
CompanyInterestOwnership
Vast Resources Plc. 100 % Indirect
Vast Resources' Romanian portfolio includes 100% interest in producing Baita Plai Polymetallic Mine.

On 23 November 2020, the Company acquired the remaining non-controlling interest of 20% in Vast Baita Plai SA (formerly African Consolidated Resources SRL). Following the acquisition, Vast Baita Plai SA is a 100% owned subsidiary of the Company.

Contractors

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Deposit Type

  • Skarn


Summary:

The Baita Plai mineralisation in geological terms is the most important manifestation of skarnhosted mineralisation in the Apuseni Mountains. The mineralisation hosts a large number of mineral species (about 90), some of which were described for the first time in the world (rezbanyite, szaibelyite or ascharite, and kotoite).

The main economic minerals, notably Cu, Pb, Zn, Au, Ag, Mo, Bi, W, and B, are concentrated in favourable sites due to the interaction of local faults (notably the Blidar contact) and a number of lesser fractures that have localised the mineralised veins, magmatic alteration, and favourable host rock lithologies (limestone and dolomites).

The orebody is hosted within Triassic limestones and dolomites, in faulted contact with underlying Permian shales across the Blidar fault. The skarn alteration is related to a granite intrusion which is interpreted to lie beneath the sediments as at yet an undetermined depth. Dykes of granitic, andesitic and lamprophyre origins cut the sediments at high angles but are reported to be pre-skarn. The host limestones and dolomites have undulating sub-horizontal dips, varying from 0-30 degrees.

A mineralogical study on metallurgical samples sent to Grinding Solutions (UK) was conducted during 2020 in which the main copper bearing minerals were identified as chalcopyrite, bornite and chalcocite, the main lead bearing mineral is galena and the main zinc bearing mineral is sphalerite. The dominan ........


Mining Methods

  • Cut & Fill
  • Open stoping
  • Longhole stoping
  • Backfill


Summary:

Access to the underground workings is by means of vertical shaft number 1 (V1#) from surface to 13 level, corresponding to an elevation of 619m and 417m respectively. Men and material access to underground is provided via a short adit on 6 level elevation (576m) to V#1.

Further access into the mine is provided by sub-vertical shaft number 3 (SV3#) from the 13- level elevation to the deepest point in the mine on 18 level (elevation at 224.1m). A second sub-vertical shaft, sub-vertical shaft number 2 (SV2#) extends from 13 level to 15 level (elevation of 317.5m).

SV3# is the main transport route for men and material and the tramming of ore to surface. SV2# serves as a second escape way for men via travelling ways between 18 level and 15 level. In addition, SV#2 serves as the main return airway from 18 level through the mine to ventilation shaft at Baia Rosie.

The historical mining method has predominantly been overhand cut-and fill, with stopes being approximately 1.5 - 20m wide although stopes more than 40 meters wide have been observed on old plans. About 80% of the orebody is excavated as ore. Low grade areas are preferentially left as support pillars or, together with waste material, used as backfill in the stopes to fill the void and create working platforms for the drilling and blasting of the hanging wall.

Excavated ore is removed from the stopes using 1m3 pneumatic powered loaders and transported to the ore pass inside the sto ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022
Copper kt  ......  Subscription required
All production numbers are expressed as concentrate.

Operational Metrics:

Metrics2022
Ore tonnes mined  ......  Subscription required
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Reserves at October 29, 2020:
The mineral resources have been stated at a cut-off grade of 0.75% copper equivalent.

CategoryTonnage CommodityGradeContained Metal
Measured & Indicated 376,000 kt Copper 1.34 % 5,054 t
Measured & Indicated 376,000 kt Lead 0.31 % 1,173 t
Measured & Indicated 376,000 kt Zinc 0.34 % 1,261 t
Measured & Indicated 376,000 kt Molybdenum 0.01 % 49 t
Measured & Indicated 376,000 kt Bismuth 0.1 % 379 t
Measured & Indicated 376,000 kt Silver 72.44 g/t 876 koz
Measured & Indicated 376,000 kt Gold 0.56 g/t 6.8 koz
Measured & Indicated 376,000 kt Copper Equivalent 3.01 % 11,328 t
Inferred 232,000 kt Copper 0.72 % 1,672 t
Inferred 232,000 kt Lead 0.25 % 586 t
Inferred 232,000 kt Zinc 0.24 % 560 t
Inferred 232,000 kt Molybdenum 0.02 % 43 t
Inferred 232,000 kt Bismuth 0.08 % 184 t
Inferred 232,000 kt Silver 57.84 g/t 431 koz
Inferred 232,000 kt Gold 0.27 g/t 2 koz
Inferred 232,000 kt Copper Equivalent 1.88 % 4,367 t
Total Resource 608,000 kt Copper 1.11 % 6,726 t
Total Resource 608,000 kt Lead 0.29 % 1,759 t
Total Resource 608,000 kt Zinc 0.3 % 1,821 t
Total Resource 608,000 kt Molybdenum 0.02 % 92 t
Total Resource 608,000 kt Bismuth 0.09 % 562 t
Total Resource 608,000 kt Silver 66.87 g/t 1,307 koz
Total Resource 608,000 kt Gold 0.45 g/t 8.8 koz
Total Resource 608,000 kt Copper Equivalent 2.58 % 15,695 t

Operating Costs:

Units2020
Total operating costs ($/t milled) USD 201


Pipelines
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Heavy Mobile Equipment:
HME TypeModelQuantityRef. Date
Drill (long hole) ....................... Subscription required Mar 26, 2021
Jumbo ....................... Subscription required ....................... Subscription required Apr 30, 2022
Jumbo ....................... Subscription required Mar 26, 2021
Loader ....................... Subscription required ....................... Subscription required Apr 30, 2022
Load-Haul-Dump (LHD) Mar 26, 2021
Load-Haul-Dump (LHD) Mar 26, 2021
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 8, 2023
....................... Subscription required ....................... Subscription required Subscription required Feb 8, 2023
....................... Subscription required ....................... Subscription required Subscription required Feb 8, 2023
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Press Release 2022
Press Release 2022
Press Release 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Other 2015
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News:

NewsDate
Report on Technical Programme for Baita Plai Mine - Exploration Target for Mineral Resource upgrade and establishment of an Ore Reserve February 27, 2023

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