• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Tanzania
Ngualla Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
150 km NNW from Mbeya, Tanzania

  Project Contacts:
Level 9, 190 St Georges Terrace
Perth
Western Australia, Australia
6000
Phone  ...  Subscription required
Fax+61-8-9226-3831
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Tanzania
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • REE
  • Nd2O3+Pr6O11
Mining Method
  • Truck & Shovel / Loader
Mine Life24 years (as of Jan 1, 2022)
Ngualla is Large scale, high-grade deposit with a long mine life and low opex and capex intensity.
Latest NewsPeak Receives Commitments to Complete $27.5 Million Placement     May 1, 2023


Owners

Source: p. 31
CompanyInterestOwnership
Government of Tanzania 16 % Indirect
Peak Rare Earths Ltd. 84 % Indirect
The Special Mining Licence (SML) for the Ngualla Project will be held under a newly formed Tanzanian entity, Ngwala Mining Limited (NML), which will be owned 84% by Peak’s Tanzanian subsidiary, PR NG Minerals Limited (PR NG), and 16% by the GOT.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Magmatic
  • Carbonatite hosted


Summary:

Rare earth and barite mineralisation at Ngualla is magmatic in origin and hosted within the core of the Ngualla Carbonatite. Mineralisation has been residually enriched in the oxide zone at surface through weathering and the removal of carbonate minerals to variable depths of up to 140 m vertically.

High-grade rare earth mineralisation is hosted within the iron oxide and barite-rich weathered zone and above an irregular karstic surface, referred to as the Weathered Bastnaesite Zone. For modelling purposes, upper grade thresholds of 0.69% P2O5 and 13.99% CaO have been used to assist with the definition of Weathered Bastnaesite Zone Mineral Resource subset reported, which has been found through test work to be most amenable to the current metallurgical extraction process.

Rare earths are the main commodities of current economic interest within the project. Rare earths were first enriched in the carbonatite intrusions by igneous processes and further upgraded to economic or subeconomic levels by weathering processes and subsequent partial erosion. The major zones of mineralisation identified in the project area are:
• Southern Rare Earth Zone (SREZ), comprising the Bastnaesite Zone (hosted in fresh and weathered carbonatite) and Monazite Zone;
• Southwest Alluvials (SWA);
• Northern Zone (NZ).

The SREZ is a 1.0 km by 1.2 km area in the low magnetic central core of the Ngualla carbonatite complex. The SREZ itself is a geographic are ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining is based on conventional selective mining methods, utilising hydraulic excavators, dump trucks and drill-and-blast, coupled to a ROM stockpile. All the ore is oxidised material categorised as “free dig”, so only the fresh waste rock requires blasting.

Both ore and waste will be excavated in 2.5 m flitches following mark-out by grade control. Ore will be hauled to either the ROM pad skyway and tipped onto a designated ore finger or a designated low-grade stockpile. All mine waste will be hauled directly from the pit and placed onto a designated location of the tailings storage facility (TSF) dam wall; there are no other external waste dumps.

The mining fleet comprises 41-tonne articulated dump trucks (Caterpillar 745) loaded by a 90- tonne excavator (Caterpillar 395). A 30-tonne front-end loader (Caterpillar 980M), which is capable of loading the 41-tonne dump trucks, will be used as back-up for the primary loading unit and also to make up shortfalls in periods where additional material movement is required. Other ancillary support will be supplied by a Cat D9R dozer, Cat 14M grader, and Cat 745 watercart. Maintenance will be conducted on site.

Owner-operated mining was selected as the operating strategy at Ngualla, with the intent of further reviewing potential contract mining offerings during the Front-End Engineering Design (FEED) phase.

The pit and stage designs were based on the slope parameters: Saprolite (21.3°), Mixed ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. Annual
Total Rare Earth Oxides Oxide in concentrate kt 16
Total Rare Earth Oxides Concentrate kt 36

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes milled, LOM  ......  Subscription required
Annual milling rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
Mining scale, tpd  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at October 31, 2022:
Ore Reserve estimate is based on the following rare earth oxide prices (net of payability): Neodymium US$49.6/kg, Praseodymium US$46.8/kg, Lanthanum US$0.7/kg, Cerium US$0.8/kg, Samarium US$1.1/kg, Europium US$15.9/kg, Gadolinium US$20.0/kg, Terbium US$666.4/kg, Dysprosium US$205.2/kg, Holmium US$69.0/kg, Erbium US$18.1/kg, Ytterbium US$8.1/kg, Lutetium US$403.8/kg, and Yttrium US$3.2/kg

A total REO cut-off grade of 1% has been used for resource reporting.

CategoryTonnage CommodityGradeContained Metal
Proven 17 Mt Total Rare Earth Oxides 4.78 % 813 kt
Probable 1.5 Mt Total Rare Earth Oxides 5.1 % 74 kt
Proven & Probable 18.5 Mt Total Rare Earth Oxides 4.8 % 887 kt
Measured 86.1 Mt Total Rare Earth Oxides 2.61 % 2,250 kt
Indicated 112.6 Mt Total Rare Earth Oxides 1.81 % 2,040 kt
Inferred 15.7 Mt Total Rare Earth Oxides 2.15 % 340 kt
Total Resource 214.4 Mt Total Rare Earth Oxides 2.15 % 4,620 kt

Commodity Production Costs:

CommodityUnitsAverageAverage
Cash costs Total Rare Earth Oxides USD  ......  Subscription required&nbs
Assumed price Nd2O3+Pr6O11 USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t milled) USD 10.7 *
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Equipment leasing costs $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Water Supply
Source: Subscription required

- subscription is required.


Proposed Heavy Mobile Equipment as of October 24, 2022:
HME TypeModelSizeQuantityLeased or
Contractor
Bulldozer ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 19, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 19, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Corporate Presentation 2022
Feasibility Study Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Feasibility Study Report 2017
Press Release 2017
Subscription required - Subscription is required.

News:

NewsDate
Peak Receives Commitments to Complete $27.5 Million Placement May 1, 2023
Peak Rare Earths Welcomes Granting of Tanzanian SML for Ngualla Project April 26, 2023

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.