Sigma is developing an industrial-scale green mining operation in the Vale do Jequitinhonha, Minas Gerais state, Brazil. The project will bring direct and indirect jobs to the local community and contribute to its economic development.
Primero Americas was engaged by Sigma Lithium (Sigma) to complete a DFS for the Xuxa Lithium Project located at Grota Do Cirilo in Minas Gerais, Brazil.
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 is 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
Site Identification and Assessment
Accessibility, Climate, Local Resources, Infrastructure & Physiography
Geological Setting and Mineralisation
Drilling (inc. sterilisation, metallurgical and geotechnical)
Sample Prep, Analysis and Security
Mineral Processing & Metallurgical Testing
Mineral Resources Estimates
Mineral Reserve Estimates
Market Studies and Contracts
Environmental Studies, Permitting and Social Impact