Sigma Lithium's 2025 Fourth-Quarter Earnings: A Showcase of Operational Excellence and Sustainability

On March 30th, 2026, Sigma Lithium hosted its 2025 fourth-quarter earnings conference call, providing a comprehensive overview of the company's operational performance during the year. The event was led by Ana Cabral, Co-Chair and CEO of Sigma Lithium, who presented a detailed report on the company's achievements.

During the presentation, Cabral highlighted Sigma Lithium's position as the largest industrial mineral producer in the Americas, boasting operational excellence and executing a high-growth strategy for 2026, 2027, and 2028. The company's unique approach to management, where interests are fully aligned with those of shareholders, allows for long-term value creation.

Cabral emphasized Sigma Lithium's resilience as its main competitive advantage, driven by operational efficiency and a favorable operating environment in Brazil. This is due to the country's politically stable mining jurisdiction, which enables low-cost operations and contributes significantly to the company's success.

One of the key aspects of Sigma Lithium's sustainability efforts showcased during the conference call was its commitment to zero environmental impact through its Quintuple Zero program. The initiative involves several pillars:

• No tailings dams, ensuring a safe and controlled waste management process;
• No use of drinking water, with 100% of water being reused and recycled from sewage;
• Zero hazardous chemicals in operations, utilizing physics-based processes like DMS instead;
• 100% clean energy usage, eliminating dirty power sources; and
• A history of zero accidents with lost time for almost three years.

Cabral also presented impressive visuals demonstrating the effectiveness of Sigma Lithium's artificial germination program. The company has successfully blended waste tailings into the landscape, creating a geotechnically stable environment that enhances the surrounding ecosystem.

The conference call also highlighted Sigma Lithium's significant social impact in Brazil, particularly in the Valley of Jequitinhonha. The company reported lifting the region towards prosperity by:

• Creating 1,000 direct jobs;
• Generating 11,000 indirect jobs; and
• Promoting microcredit and small-scale agriculture programs benefiting 21,000 individuals.

The event concluded with a message of optimism regarding Sigma Lithium's future prospects. With its operational excellence, commitment to sustainability, and impressive social impact, the company is poised for continued growth and success in the years to come.