Sigma Lithium Corporation completed the sale of 150,000 t of high‑purity lithium fines, each containing 1 % lithium oxide, to a buyer that will receive the product at the Port of Vitória. The transaction closed at a net final price of US$140 per tonne, and the buyer retains an option to purchase an additional 350,000 t of the same low‑grade product at market prices upon delivery.
The sale is part of Sigma’s strategy to monetize its dry‑stacked middlings, which the company estimates could generate proceeds equivalent to 70,000 t of its high‑grade lithium oxide concentrate. In addition, the company activated a US$96 million production‑backed revolver. Each prepayment of US$8 million is made 30 days before production and delivery, with interest at SOFR + 1 % for 30 days. The first prepayment was disbursed on January 13, 2026, and the revolver is tied to the supply of 70,500 t of high‑grade lithium concentrate for 2026.
The transaction provides Sigma with immediate cash flow and a secured source of future revenue, reinforcing its low‑cost production model and supporting its plan to double capacity by the end of 2026. The sale also demonstrates continued market demand for low‑grade lithium, which can be upgraded to higher‑grade concentrate—up to 4 % lithium oxide—using the company’s proprietary dense media separation technology, achieving recoveries of up to 60 %. The revolver’s structure, with prepayments linked to future production, de‑risks the financing for both Sigma and the buyer and underpins the Phase 2 expansion that will bring the company’s total capacity closer to its long‑term target.
"This production‑backed revolving agreement reflects our client's confidence in Sigma Lithium's ability to deliver consistent High Grade Lithium Concentrate volumes at scale. It builds on a relationship that has developed steadily over time and underscores our role in the lithium supply chain," said Catarina Noci, Sigma’s VP of Commercial. The deal signals strong market confidence and positions Sigma to capitalize on growing demand for lithium‑ion battery materials while strengthening its liquidity profile.
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