SGML Stock Soars On $100M Bank Guarantee, Retail Says 'One Last Hurdle' Is Behind

• The bank guarantee enables Sigma Lithium to access development financing for its sustainable lithium expansion.
• The new industrial plant will replicate the same technologies currently deployed at the company’s first facility.
• On Monday, the company announced it secured two offtake agreements totaling $146 million.

Sigma Lithium Corp. (SGML) said on Thursday that it has secured a $100 million bank guarantee, fully backed by client commitments through corporate guarantees, letters of credit, and export receivables. 

The bank guarantee enables Sigma Lithium to access development bank financing, supporting the expansion of its sustainable lithium operations. 

Greentech Plant Expansion And Production Boost

This financial backing paves the way for the company to finalize construction of its second Greentech industrial plant, which will nearly double annual lithium oxide concentrate production from 270,000 tonnes to 520,000 tonnes.

The new industrial plant will replicate the same technologies currently deployed at the company’s first facility. By increasing output, Sigma aims to meet rising global demand for high-grade lithium oxide used in energy storage and electric vehicle batteries. 

Sigma Lithium stock traded over 19% higher on Thursday afternoon. 

Sigma Lithium’s Supply Deals In 2026

On Monday, the company said it has finalized two offtake deals worth a combined $146 million, guaranteeing the delivery of lithium oxide concentrate through 2026 and into subsequent years.

The company also said it has slashed its total debt by 35% year-on-year (YoY), ending 2025 with $141 million in total debt.

Sigma Lithium projects that it will produce 240,000 tonnes of high-grade lithium oxide concentrate over the next 12 months, with an all-in sustaining cost of $592 per tonne. Looking further ahead, the company expects output to rise to 520,000 tonnes in 2027 and 770,000 tonnes in 2028.

How Did Retail Traders React? 

On Stocktwits, retail sentiment around the stock remained in ‘extremely bullish’ territory amid ‘extremely high’ message volume levels. 

A Stocktwits user said that with the bank guarantee in place, Phase 2’s final obstacle is cleared.

SGML stock has gained over 6% year-to-date. 

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