Brazilian court fines Sigma Lithium over blast damage in Jequitinhonha valley
Short record: the main facts, with sources. A full case file has not been prepared.
Sigma Lithium marketed its lithium as 'five-zero green lithium', a carbon-neutral claim based on credits from a suspended Amazon scheme. Prosecutors in Minas Gerais found blast-related cracks in about half of inspected homes, and a court imposed a 50 million real guarantee and a daily fine.
- Sigma Lithium — Sold lithium under a 'five-zero green lithium' label, with a carbon-neutral claim based on Unitor credits Noticias Ambientales
- Residents of Jequitinhonha valley villages — Blast-related cracks found in about half of inspected homes, per the prosecutors' case Brasil de Fato
What happened
Noticias Ambientales reported in November 2025 that Sigma's carbon-neutral claim for its first shipment to China rested on 59,000 credits from the Unitor project, which a Federal Police operation suspended; 68 organisations filed complaints.
Brasil de Fato reported on 30 September 2026 that a Minas Gerais prosecutors' case found blast-related cracks in about half of the inspected homes.
Brasil de Fato reported that the court imposed a guarantee of 50 million reais and a daily fine of 500,000 reais, and that a federal court returned three licences to the company.
In court and with insurers
Lawsuits and rulings
- 2026-09-30Outcome not on recordMinas Gerais prosecution over blast damage in the Jequitinhonha valleyMinas Gerais justice system (court not named in sources reviewed) · unknown · Minas Gerais state prosecutors → Sigma Lithium
Court imposed a 50 million real guarantee and a daily fine of 500,000 reais; a federal court returned three licences, per Brasil de Fato. Brasil de Fato
Insurers
What we don't know
Nature
- Not measured Harm to nature: The record holds no measurement of harm to nature.
Court
- Unclear Minas Gerais prosecution over blast damage in the Jequitinhonha valley: outcome not on record.
Record
- Unclear Whether the guarantee has been paid or the fine enforced is not stated.
- None on record The number of homes inspected is not stated; the source gives the cracks as about half.
- None on record Dust and noise from blasting are listed in the case summary without a dated source.
- None on record Sigma's response to the fine and to the complaints is not stated in the sources reviewed.
- None on record Chinese buyers and the role of the BNDES development bank are listed without a source.
- Unclear The Federal Police action suspending the Unitor project is reported without its own source.
Did the harm stop?
Not stated in the sources reviewed.
Who paid?
Not stated in the sources reviewed.
Sources
Press and investigations
- 'Green' lithium under suspicionNoticias Ambientales · 2025-11-01
- Justiça aplica multa à Sigma por descumprimento no Vale do Jequitinhonha (MG)Brasil de Fato · 2026-09-30
Connected cases
- Brazil: Operation Greenwashing Brazil · 2024–2025
- Sigma Lithium (Company) — here: Operator; labelled its lithium green; first shipment to China; there: Used credits from the Unitor project (reported)