Sigma Lithium Announces Additional Sale of 150,000t plus 350,000t Optional of High Purity Lithium Fines; Production-Backed Revolver of US$96 Million

Executive Summary

• Sigma Lithium announced a definitive sale agreement for 150,000 t of high‑purity low‑grade lithium fines at US$140/t, with an option for the buyer to purchase an additional 350,000 t at market prices.
• The transaction triggers pre‑payments under a US$96 million revolving credit facility secured by a commitment to supply 70,500 t of high‑grade lithium concentrate in 2026, improving near‑term liquidity.
• Both agreements reflect strong client confidence and generate an additional revenue stream that could be equivalent to sales of ~70,000 t of high‑grade concentrate.

Key Details

• Low‑Grade Product Sale
• Quantity sold: 150,000 t of lithium fines (≈1% Li₂O).
• Net price: US$140 per tonne.
• Delivery point: warehouse at the Port of Vitória, Brazil.

• Optionality: buyer may purchase up to an additional 350,000 t at prevailing market prices upon delivery.

• Revenue Equivalence

• Proceeds from the low‑grade sale are estimated to be comparable to selling ~70,000 t of high‑grade lithium concentrate.

• Client Processing Benefits

• Customers achieve up to 60% recovery when re‑processing the low‑grade product, producing concentrate >4% Li₂O (≈US$1,370/t spot price).

• Production‑Backed Revolver

• Facility size: US$96 million unsecured revolving credit line.
• Supply commitment: 70,500 t of high‑grade lithium concentrate to be delivered in 2026.
• Pre‑payment terms: fixed installments of US$8 million each, payable 30 days before production and delivery.
• First pre‑payment disbursed on 13 Jan 2026 (previously announced).

• Interest rate: SOFR + 1% for the 30‑day period until final sale.

• Pricing Mechanism

• Sale price of high‑grade concentrate will track prevailing spot market indexes, preserving upside exposure for Sigma Lithium.

Notable Quotes

• Catarina Noci, VP of Commercial: “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.”
• Marina Bernardini, VP of Business Development: “Our sequential sales of the Low Grade Product show how this material can generate recurring value… Continuous demand for the Low Grade Product has supported the creation of an additional revenue stream for the Company.”