Environmental

Environment

High-Quality ‘Green Lithium’

Supporting the United Nations Sustainable Development Goals

For three years, we have tested and improved a ‘green and sustainable’ purification route that produces high-quality lithium for electric vehicle batteries. This high-purity processing technology allows us to produce environmentally sustainable ‘green lithium’.

Ensure availability and sustainable management of water and sanitation for all.

Ensure access to affordable, reliable, sustainable and modern energy for all.

Ensure sustainable consumption and production patterns.

Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, halt reverse land degradation and biodiversity loss.

Our production process is

fully sustainable

100% Green Power

Our operations at Grota do Cirilo use 100% hydropower delivered by the Irapé hydroelectric power plant located 50km from the mine.

100% Water Recycling

We recycle 100% of the water used at Grota do Cirilo (while losing 10% to evaporation), meaning we only draw water from the nearby Jequitinhonha River minimally.

Zero Tailings Waste

Thanks to Dense Media Separation technology, we can dry stack tailings from the production process instead of using a tailings dam. They are non-hazardous, reducing the environmental impact of the tailings, which are used by other industries – resulting in no waste.

How we achieve sustainability

Meeting Sustainable Development Goals

Forming ‘the blueprint to achieve a better and more sustainable future for all’, the 17 United Nations Sustainable Development Goals are important for every business to follow. That is why we have aligned our strategies, activities and standards to those goals. Highlighted above are the four that best coordinate with our environmental impact policies.

Environmental Protection by Design

We built the entire design of our Phase 1 production at Grota do Cirilo around the need to preserve the Piaui River seasonal stream. So, rather than creating a Super Pit in line with standard practice, the mine has a North Pit and a South Pit – conserving the natural habitat of the riverbed for daily use by the local community.

Supporting Reforestation

Alongside our measures to reduce the environmental impact of the mine, we operate an extensive reforestation program that helps to compensate for those emissions we cannot yet avoid. This means we will replant trees from across 5,000 species while also recovering more than 1,200 trees from degraded areas.

Watch our ESG video

At Sigma Lithium, ESG comes first. It has been a priority for our business since its founding and the principles behind it guide everything we do. For us, developing better environmental practices to preserve our ecosystems and contribute to a better future for our planet is non-negotiable. So is the prosperity of our local communities and the transparency of our operations. While we are a battery materials supplier that thinks globally, we always act locally.

Environment

High-Quality ‘Green Lithium’

Supporting the United Nations Sustainable Development Goals

Our production process is

fully sustainable

How we achieve sustainability

Watch our ESG video

Watch our ESG video

Environmental Impact Report (RIMA - Relatório de Impacto Ambiental)

EIA Report - Nezinho do Chicão

RIMA Report - Nezinho do Chicão

EIA Report - Barreiro

RIMA Report - Barreiro

Políticas de Direitos Humanos

Discover our sustainability approach

High-Quality ‘Green Lithium’

Promoting the economic growth of the local community

Maintaining the Highest Standards

Check out our governance documents

Explore the market forecast for sustainable lithium

Experience firsthand some of our many ESG initiatives