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Canada
Matawinie Project

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 Location:
6 km SW from SaintMichel-des-Saints, Quebec, Canada

  Project Contacts:
331 rue Brassard
Saint-Michel-des-Saints
Quebec, Canada
J0K 3B0
Phone  ...  Subscription required
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  • Mining
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  • Fleet
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  • Filings & News

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Overview

StageConstruction
Mine TypeOpen Pit
Commodities
  • Graphite
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Magnetic separation
Mine Life25.5 years (as of Jan 1, 2018)
The year 2022 is indeed projected to be pivotal in Nouveau Monde’s development with the following goals set by management for the Company:
* Continuation of safe operations and environmental stewardship at the Company’s Phase-1 facilities and construction sites, anchored in Nouveau Monde’s zero-harm philosophy.
* Construction and commissioning of the Company’s Phase-1 coating line with a 2,000-tpa nameplate capacity to produce coated spherical purified graphite (“CSPG”), the final stage of value-added transformation for graphite materials to enter battery manufacturing.
* Completion of a NI43-101 bankable feasibility study for the large-scale Phase-2 Bécancour battery material plant and the Matawinie graphite mine to reflect Nouveau Monde’s integrated business model for comprehensive planning, cost projection, and development framework.
* Advancement of Phase-2 Matawinie mine construction through detailed engineering, procurement, and on-site civil works.
Latest NewsNouveau Monde Provides Update for Matawinie Mine Project as Engineering and Civil Construction Works Advance     July 29, 2021


Owners

Source: p. 32
CompanyInterestOwnership
Nouveau Monde Graphite Inc. 100 % Direct
The Property is fully owned by NMG and is spread over an area of approximately 75 km by 45 km.

Deposit Type

  • Sedimentary


Summary:

Crystalline flake graphite mineralization has been the focus of exploration by NMG on its Matawinie Property, including the Tony Block.

Crystalline flake graphite mineralization was first discovered on the Tony Block in mid2014. Prospecting work, performed as a follow-up to the late 2013 airborne survey (Dubé, 2014, GM 69067), resulted in the collection of nine (9) grab samples that returned values in excess of 5 % C(g) (Cloutier, 2015, GM 69069). Subsequent to this discovery, a short ground TDEM survey was conducted over four (4) areas where the 2013 airborne survey displayed strong conductors. Trenching was then performed in each of these areas, resulting in the discovery of graphitic paragneiss horizons displaying thicknesses of over 20 metres. The best intersections were provided by trenches TO-14-TR-2 and TO-14-TR4, which returned 5.7 % C(g) over 22 m and 5.1 % C(g) over 25.8 m, respectively.

The drilling and trenching of all the mineralized zones located on the Tony Block, including the West Zone, revealed that the mineralized graphitic paragneiss units vary from a few centimetres to tens of metres in thickness. Overall, a stacking of these beds, or horizons, has shown to provide fairly homogeneous and continuous mineralization. Overall, the dip of the other mineralized horizons varies from 30 degrees to sub vertical. The main graphitic horizons pinch and swell from four (4) m to around 80 m in width along strike, and drilling suggests that they are mostly open at depths greater than 200 m from surface.

The graphitic horizons are interbedded with garnet paragneiss units displaying low graphite content and ranging from a few centimetres to tens of metres in width. Both the graphitic and the garnet
paragneiss horizons can contain very little to high percentages of leucocratic mobilizate, thought to be the product of partial melting. The paragneiss is given the name of metatexite when the mobilizate layers of varying thickness are common, and are distributed in a lit-par-lit manner parallel to the foliation. These units are usually sub-parallel to the main foliation and often border the mineralized zones. All mineralized zones, with the exception of the West Zone, are limited by unmineralized to poorly mineralized paragneiss and sometimes metatexite. The Mineralization of the West Zone is usually bounded to the West by metatexite or charnockite and to the East by unmineralized paragneiss and further outside of the mineralization (usually less than 100 m), by charnockite.

The crystalline graphite flakes are mostly aligned parallel to the main foliation and they are disseminated fairly homogeneously within the mineralized horizons. Graphite mineralization is often found in the presence of sulphides, or in the case of the Tony Block, mainly pyrrhotite. This is made further evident by the correlation between the mineralized intersections and a strong magnetic field measured using a magnetic susceptibility meter (MPP probe by Instrumentation GDD Inc.) over the drill core.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method selected for the Matawine Project will consist of an open pit truck and shovel operation considering an all-electric mining fleet. In addition, an in-pit crushing and conveying system will supply crushed ore to the concentrator.

The use of electric equipment for drilling, loading and hauling operations will minimize carbon emissions over the duration of the mine life. This incentive aligns directly with NMG’s low environmental impact initiative. The design and implementation of an allelectric mining project is an opportunity to reduce the environmental impact on the community of Saint- Michel-des-Saints.

The haulage fleet will consist of 36.3-tonne battery powered haul trucks which will need to be recharged at dedicated fast charging stations every cycle between 0.3-7 minutes depending on haulage demands (distance and grade of haulage profile). The impact on truck productivity associated with charging the haulers will potentially result in productivity losses between 7.8 and 20 % in comparison to diesel equipment of the same payload capacity.

This loss in productivity is due to the limitation in autonomy of these vehicles. The battery chosen has to be smaller than required to operate a full shift so that payload capacity is not affected. In order to make up for this, the trucks require a charge as part of the haulage cycle which results in the productivity loss. The battery technology employed has a high cycle life combined with the ability for fast charging (3C charge rate depending on State of Charge (“SOC”)). This combination allows for an optimized run time vs charge time ratio of the equipment where charging can occur over breaks, lunch and shift change as much as feasible.

Material movement will be managed by a loading fleet consisting of fully electric hydraulic shovels (connected by cable reel) and battery powered loaders. Electric cable powered dozers will also be used to build and manage the co-disposal dump.

Both the crushing, conveying of ore to the plant as well as the operation of the pit itself will consider different operating schedules to reduce dust and noise pollution to the surrounding community of Saint-Michel-des-Saints.

Vegetation, topsoil, and overburden will be stripped and stockpiled separately for future reclamation use. The ore and waste rock will be mined considering five (5) m high benches, drilled, blasted and loaded into fully electric haul trucks by excavators and wheel loaders.

For a smooth-running operation, it is planned to blast the ore and waste rock approximately twice a week at 18,322 m3 per blast. This equates to an approximate 55 m×55 m square pattern, twice a week considering a 4.25 m burden and spacing and a bore hole diameter of 140 mm (5.5 inch).


Crushing and Grinding
Flow Sheet: Source


Processing

  • Flotation
  • Magnetic separation

Flow Sheet: Subscription required

Summary:

The concentrator is located near the open pit mine and is designed to produce a nominal 100,000 tonnes of high-grade graphite concentrate per year.

The mineral processing facility has seven (7) distinct areas: in-pit crushing, grinding and flotation, polishing and cleaning, graphite concentrate dewatering, screening and packaging, graphite tailings dewatering, and tailings processing.

The ROM mineralized material will be crushed by the in-pit crushers prior to being transported from the pit to the covered stockpile by conveyor. The crushed material is reclaimed from the stockpile and ground in a SAG mill. The SAG mill discharge is screened and the screen oversize is returned back to the SAG mill. The SAG screen undersize is pumped to the ball mill circuit. The ball mill is in closed circuit with rougher flotation and the cyclones. This allows for the removal of larger graphite flakes as soon as they are liberated from the ore and helps maintain graphite flake i ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Graphite Recovery Rate, % 94
Graphite Head Grade, % 4.35
Graphite Concentrate Grade, % 97

Projected Production:

CommodityUnitsAvg. AnnualLOM
Graphite kt 1002,520
All production numbers are expressed as concentrate.

Operational Metrics:

Metrics
Stripping / waste ratio 1.06 *
Waste tonnes, LOM 49,962 kt *
Ore tonnes mined, LOM 59,855 kt *
Total tonnes mined, LOM 123,038 kt *
Annual milling capacity 2,350 kt *
Annual production capacity 100,000 t of graphite concentrate *
Tonnes processed, LOM 59,855 kt *
* According to 2018 study.

Reserves at July 10, 2018:

CategoryTonnage CommodityGradeContained Graphite
Probable 59.8 Mt Graphite 4.35 %
Indicated 95.8 Mt Graphite 4.28 % 4.1 Mt
Inferred 14 Mt Graphite 4.19 % 0.59 Mt

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Graphite CAD 499.29 / t *
Assumed price Graphite CAD 2,261 / t *
* According to 2018 study / presentation.

Operating Costs:

Units2018
OP mining costs ($/t milled) CAD 7.49 *
Processing costs ($/t milled) CAD  ......  Subscription required
* According to 2018 study.
Subscription required - Subscription is required.

2018 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 587.4
Site services costs $M CAD 22.6
G&A costs $M CAD 54.1
Total OpEx $M CAD  ......  Subscription required
Mining Taxes $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
Pre-tax NPV @ 10% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
After-tax NPV @ 8% $M CAD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of December 10, 2018:
HME TypeModelSizeQuantity
Dozer (crawler) ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 10, 2018
....................... Subscription required ....................... Subscription required Subscription required Jul 10, 2018
....................... Subscription required ....................... Subscription required Subscription required Oct 29, 2021
....................... Subscription required ....................... Subscription required Subscription required Oct 29, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
Corporate Presentation 2018
Feasibility Study Report 2018
Preliminary Economic Assessment 2017
Subscription required - Subscription is required.

News:

NewsDate
Nouveau Monde Provides Update for Matawinie Mine Project as Engineering and Civil Construction Works Advance July 29, 2021
Nouveau Monde Provides an Update on its Business Plan Targeting the Battery and EV Markets... June 29, 2021
As a World First, Nouveau Monde Has Signed a Collaboration Agreement with Caterpillar for the Development of a Zero-Emission Solution for the Matawinie Mine June 22, 2021
Key Milestone Reached as Nouveau Monde Receives Quebec Government Authorisation to Build What is Set to Become the Western World’s Largest Graphite Mine February 10, 2021
As a World First, Nouveau Monde Commits to All-electric Fleet for Sustainable Open-pit Mining & Invites Manufacturers for Pre-qualification November 24, 2020
Nouveau Monde Announces Updated Resource Estimate and Increases Combined Measured & Indicated Resources by 25 % to 120.3 Mt @ 4.26 % Cg March 19, 2020
Nouveau Monde Graphite Reaches a Key Milestone for the Construction of Its Commercial Plant November 5, 2019
Nouveau Monde Graphite Files Environmental and Social Impact Assessment for its Matawinie Project April 11, 2019
Nouveau Monde Reviews 2018 Accomplishments and Announces 2019 Objectives January 8, 2019
Nouveau Monde Graphite Filed Its Feasibility Study on Its Matawinie Graphite Property December 13, 2018
Nouveau Monde Graphite Provides Progress Update on Construction of Graphite Demonstration Plant December 4, 2017

Aerial view:

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