Sigma is developing a world-class industrial-scale hard-rock lithium project. The significant deposits in Brazil can be counted among some of the highest-grade spodumene pegmatites in the world
Scope of Work
Primero Canada are currently retained by Sigma Lithium (Sigma) to progress a definitive feasibility study for the Xuxa Lithium Project located at Grota Do Cirilo in Minas Gerais, Brazil. Recent highlights include:
- Receiving environmental and revised mining approval (previously operating mine;
- Commencement of additional met testwork programs for recent resource upgrades;
- Execution of a binding head of agreement with Mitsui;
- Increased size of measured and indicated resource to 45.7m tonnes;
- Commissioned 10tph Pilot Plant onsite; and
- Progressing of detailed engineering of the concentrator.
The DFS scope of work included the following:
NI 43-101 Deliverable
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Site Identification and Assessment
Accessibility, Climate, Local Resources, Infrastructure & Physiography
History
Geological Setting and Mineralisation
Deposit Types
Exploration
Drilling (inc. sterilisation, metallurgical and geotechnical)
Sample Prep, Analysis and Security
Data Verification
Mineral Processing & Metallurgical Testing
Mineral Resources Estimates
Mineral Reserve Estimates
Mining Methods
Recovery Methods
Project Infrastructure
Market Studies and Contracts
Environmental Studies, Permitting and Social Impact
Capital and Operating Costs
Economic Analysis
Adjacent Property
Interpretations, Conclusions and Recommendations
