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Brazil
Santa Cruz Mine

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 Location:
18 km S from Eunapolis, Brazil

  Regional Office:
Avenida Afonso Pena, número 3924 sala 412 Bairro Cruzeiro
Belo Horizonte
Brazil
30130-009
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Graphite
Mining Method
  • Truck & Shovel / Loader
Mine Life12 years (as of Jan 1, 2020)
Santa Cruz project is situated in second-largest flake-graphite producing district in the world.

South Star is fully funded for Phase 1, and the 12-month construction and commissioning are underway. Santa Cruz will be the first new graphite production in the Americas since 1996 with Phase 1 commercial production projected in Q4 2023. Phase 2 production (25,000 tpa) is partially funded and planned for 2026, while Phase 3 (50,000 tpa) is scheduled for 2028.
Latest NewsThe United States Department of Defense Awards Multi-Million-Dollar Grant to South Star Battery Metals to Support the Accelerated Expansion of U.S. Domestic Battery Graphite Production Within the Contiguous United States of America     November 29, 2023


Owners

Source: p. 26
CompanyInterestOwnership
South Star Battery Metals Corp. 100 % Indirect
Brasil Grafite S.A., a wholly owned subsidiary of South Star, holds 100% interest in the Santa Cruz Graphite Project.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Metamorphic
  • Sedimentary


Summary:

The Project can be classified as sedimentary – metamorphic. During late Precambrian age, pelites and carbon were deposited at the same time. Later in early Cambrian age, orogenic movements transformed these sediments to high grade metamorphic rocks, and these movements transformed the carbon and the hosted rock to gneiss with graphite (this type of mineralization with the different metamorphic minerals is known as the Kinzigite Complex).

The mineralization was shifted by a regional fault, which dictated alignment of the host rock (gneisses and paragneisses) and coupled with the soft nature of the graphite, made the association of such strike and fold (anticlines) changes to host mineralized zones and thicker lenses. Several deposits, including the Santa Cruz Graphite Project, are hosted in this regional area that covers over 25,000km². The region is known to produce high-quality natural flake graphite, which occurs as flat, plate-like particles with either hexagonal or angular edges. The graphite is derived from carbon rich sediments and is generally disseminated throughout the mineralized zones, but often with periodic lens-shaped pockets of higher-grade materials.

Flake size has a strong impact on demand and as a result pricing, with larger flake sizes generally being higher in value. Natural flake graphite is generally classified in the industry by flake size as follows:
1.) Jumbo: +50 mesh (0.3 mm)
2.) Large: –50 mesh to +80 mesh (0.18mm)< ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method selected for the Project is conventional open pit with excavator, dozer and haul trucks. Life of mine strip ratio is favorable at 1.27 tonnes of waste for each tonne of rock mined.

Operations for the Life of Mine (LOM) have been divided into following two phases:
- Phase 1 Pilot Plant Operations (5,000 tpy of concentrate);
- Phase 2 Operations (25,000 tpy of concentrate).

Grade control will be coordinated through a full-time grade control crew of technicians that will use channel samples taken at the pit face to identify the ore zones. When required, the grade control crew will execute drill holes at the mining faces to determine grade control parameters.

Excavators will load conventional on-road 25 ton trucks that will transport the ore to the plant ore stockpile area and the waste to the waste storage facilities (WSF). The WSFs will have adequately prepared areas, and wasterock will be disposed in a controlled manner (compacted along with installation of surface drainage and revegetation, etc.) to guarantee the long-term physical and chemical stability of the deposit and facilities.


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnitsAvg. Annual (Projected)LOM (Projected)
Graphite kt 25231
All production numbers are expressed as concentrate.


Reserves at June 30, 2019:
Mineral Reserves are based on Mineral Resources (Published on July 8th, 2019) estimated using ordinary kriging method and a three-dimensional block model using a cutoff grade of 0.75% and 1% Cg, depending on the modeled zones.

CategoryOreTypeTonnage CommodityGradeContained Graphite
Proven In-Situ (OP) 3,989,635 t Graphite 2.49 %
Probable In-Situ (OP) 8,318,796 t Graphite 2.35 %
Proven & Probable In-Situ (OP) 12,308,431 t Graphite 2.4 %
Measured In-Situ (OP) 3,947,550 t Graphite 2.4 % 95 t
Indicated In-Situ (OP) 10,955,570 t Graphite 2.25 % 247 t
Measured & Indicated In-Situ (OP) 14,903,100 t Graphite 2.29 % 341 t
Inferred In-Situ (OP) 7,911,450 t Graphite 2.32 % 184 t



Proposed Heavy Mobile Equipment as of January 31, 2020:
HME TypeModelSizeLeased or
Contractor
Bulldozer ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

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


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Press Release 2023
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Preliminary Economic Assessment 2018
Subscription required - Subscription is required.

News:

NewsDate
The United States Department of Defense Awards Multi-Million-Dollar Grant to South Star Battery Metals to Support the Accelerated Expansion of U.S. Domestic Battery Graphite Production Within the Contiguous United States of America November 29, 2023
South Star eyes faster ramp up of Brazil graphite mine October 23, 2023

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