Sigma started to produce battery-grade lithium concentrate on a pilot scale in 2018, shipping bulk samples to potential customers from its Phase I Production Plant. Based on the initial design being considered under the FS, a larger scale lithium concentration plant will contemplate a capacity of 220,000 tonnes of battery-grade spodumene concentrate annually. If recommended in the FS and required funding is obtained, Sigma would seek to begin construction by the end of the second quarter of 2019 and to become a fully-operational sustainable lithium producer in 2020.
Sigma adopted a development strategy with includes low-technical execution risk and low-capital expenditures for the Grota do Cirilo Project. As a result, Sigma decided to conduct its first feasibility analysis exclusively on the Xuxa deposit. |