Sigma Lithium
Sigma Lithium Corporation (NASDAQ: SGML) operates the Grota do Cirilo hard-rock lithium mine in Minas Gerais, Brazil, and is the largest lithium producer in the Americas. It sells lithium oxide concentrate and lithium fines under long-term offtake agreements to global EV battery manufacturers and commodity traders such as Glencore.
- Company typePublic
- Founded2012
- HeadquartersToronto, Canada
- Headcount1,001–5,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Sigma Lithium does
Sigma Lithium Corporation (NASDAQ: SGML) is a Canadian-incorporated mining company that operates the Grota do Cirilo hard-rock lithium mine in the Jequitinhonha Valley of Minas Gerais, Brazil, and is the largest lithium producer in the Americas. The company processes spodumene ore through its Greentech Industrial Plant using proprietary dense media separation (DMS) technology, producing high-grade lithium oxide concentrate at SC5 (5% Li2O) and SC6 (6% Li2O) grades, and a secondary lithium fines product (1% Li2O) derived from reprocessing dry-stacked tailings. Current nameplate capacity is 270,000 tonnes per year, with Greentech Plant 2 under construction to lift capacity to 520,000 tpa and a Phase 3 roadmap targeting 770,000 tpa by year-end 2027.
The company sells directly to global commodity traders (Glencore being the principal named counterparty) and undisclosed battery manufacturers through long-term offtake agreements with prepayment components, with shipments routed through the Port of Vitoria, Brazil. Revenue is commodity-indexed (Q1 2026 realized price of $1,790 per tonne for SC5 concentrate) and supplemented by lithium fines sales at $50-140 per tonne. The model is capital-intensive, with funding assembled from a BNDES development loan (BRL 487M), ESG trade finance credit lines (USD 90M), a USD 100M collateralized bank guarantee, a USD 96M production-backed revolver, and Glencore prepayment facilities. Customers are global EV battery manufacturers and commodity trading houses seeking Western Hemisphere lithium supply diversification away from Chinese-dominated processing.
The business carries meaningful operational and regulatory risk: a January 2026 Labor Ministry shutdown of waste piles was reversed after ANM confirmed safety, but ongoing court proceedings in Aracuai (BRL 50M environmental deposit order), a Pomerantz LLP securities investigation, a Blue Orca short report, and a Bank of America downgrade to Underperform reflect unresolved scrutiny. Q1 2026 delivered record margins (61% gross, 39% EBITDA, 26% net) following operational remobilization, but FY2025 results were materially impaired by the shutdown, illustrating execution fragility alongside the growth thesis.
Sigma Lithium firmographics
Firmographics- Name
- Sigma Lithium
- Legal name
- Sigma Lithium Corporation
- Website
- https://sigmalithiumresources.com
- Company type
- Public
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Sigma Lithium Corporation (NASDAQ: SGML) operates the Grota do Cirilo hard-rock lithium mine in Minas Gerais, Brazil, and is the largest lithium producer in the Americas. It sells lithium oxide concentrate and lithium fines under long-term offtake agreements to global EV battery manufacturers and commodity traders such as Glencore.
- Ownership category
- akta.pro rank
Sigma Lithium industry classification
Industry- Product category
- Lithium Mining and Battery-Grade Concentrate Production
- NAICS
- Other Metal Ore Mining (212290), Support Activities for Metal Mining (213114)
- SIC
- Metal Mining (1000)
- akta.pro primary industry
- Lithium Mining & Brine Extraction (IMAKAFAA)
- akta.pro secondary industries
- Battery-Grade Chemical Processing (LiOH/Li2CO3, Ni/Co Sulfates, Mn Sulfate) (IMAKAFAI), Battery Raw Materials Mining & Refining (Lithium, Nickel, Cobalt, Manganese, Graphite) (EUAFABAA), Mine Development & Processing EPC (Critical Minerals) (IMAKAFAM)
Keywords
Where Sigma Lithium is headquartered
LocationHeadquarters
- HQ city
- Toronto
- HQ country
- Canada
- HQ region
- North America
Offices3 records
Markets served
Sigma Lithium business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D
Revenue model
- Lithium Oxide Concentrate Sales: Sale of high-grade lithium oxide concentrate (SC5) produced at the Greentech Industrial Plant, the primary revenue driver. Q1 2026 generated $42M in revenue from sale of 23,000 tonnes at a realized price of $1,790 per tonne.
- Lithium Fines Sales: Sale of high-purity low-grade lithium fines from the Greentech Plant, including inaugural sales of 400,000 tonnes at $50/tonne, additional 100,000-150,000 tonnes at $125-140/tonne, and option agreements for additional volumes. Creates a secondary revenue stream from previously untapped tailings.
- Trade Finance Credit Lines: ESG-oriented trade finance credit facilities providing working capital. Sigma closed USD 90 million in ESG-oriented trade finance credit lines and received increased prepayment terms from Glencore, reflecting sustainable practices.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | High-grade lithium oxide concentrate SC5 at $1,790/tonne realized price in Q1 2026 |
| Unit Pricing | Pay-as-you-go | High-purity lithium fines at $50-140/tonne fixed price |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Sigma Lithium product offering
Product offeringCore offering
Sigma Lithium mines hard-rock lithium ore at the Grota do Cirilo operation in Minas Gerais, Brazil, and processes it at its Greentech Industrial Plant using dense media separation technology to produce battery-grade lithium oxide concentrate (SC5 at 5% Li2O and SC6 at 6% Li2O). It also reprocesses previously untapped dry-stacked tailings into high-purity lithium fines, selling the output via direct offtake agreements to global battery manufacturers, commodity traders, and lithium chemical processors at port-delivered terms.
Product overview
Sigma Lithium operates a mining and processing business producing lithium oxide concentrate from its Grota do Cirilo mine in Brazil's Minas Gerais state. The company processes ore through its Greentech Industrial Plant, which uses dense media separation technology to produce carbon-neutral lithium products. The product portfolio includes high-grade SC5 and SC6 lithium oxide concentrate, plus a lithium fines product derived from reprocessing dry-stacked tailings. The company is expanding from one Greentech plant (270,000 tpa capacity) to a second plant targeting 520,000 tpa by early 2027, with further expansion planned to 770,000 tpa by end of 2027.
Differentiator
Problem solved
Functional benefit
Products and services
- Lithium Oxide Concentrate (SC5) High-grade lithium oxide concentrate at 5% Li2O content, produced at Sigma Lithium's Greentech Industrial Plant in Minas Gerais, Brazil, and sold to global battery manufacturers for use in electric vehicle and energy storage lithium-ion battery production. Sold under long-term offtake agreements with prepayment components and port-delivered terms at the Port of Vitoria.
- Lithium Oxide Concentrate (SC6) Premium-grade lithium oxide concentrate at 6% Li2O content, representing the highest-purity product in Sigma Lithium's portfolio, produced at the Greentech Industrial Plant and targeted at battery manufacturers seeking maximum lithium content per tonne.
- High-Purity Lithium Fines Lower-grade lithium fines with 1% Li2O content, produced by reprocessing previously untapped dry-stacked tailings at the Greentech Plant, sold at $50-140/tonne to lithium chemical processors who apply their own dense media separation technology to recover high-grade concentrate at 60% recovery rates with over 4% lithium oxide content.
Companies that use Sigma Lithium
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
Sigma Lithium technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Sigma Lithium partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Lithium Fines BuyersminorSigma Lithium sold 150,000 tonnes of high-purity lithium fines at $140/tonne to buyers who process the low-grade material using their own dense media separation technology, achieving 60% recovery rates and converting it into concentrate with over 4% lithium oxide content.
Scale indicators10 records
Recent moves10 records
Expansion highlights2 records
Sigma Lithium competitors and assessment
Company assessmentBroad incumbents
- Albemarle Corporation: One of the world's largest lithium producers, with operations across hard-rock (spodumene) and brine resources. Albemarle competes directly with Sigma Lithium in the global lithium oxide concentrate market but operates at much larger scale and across multiple geographies and chemistries.
- Ganfeng Lithium: One of the world's largest vertically integrated lithium producers, with operations spanning hard-rock mining, brine extraction, and downstream lithium chemicals. Comparable to Sigma Lithium across the lithium concentrate value chain but with far larger scale, downstream integration, and Chinese ownership.
- Tianqi Lithium: Major Chinese lithium chemicals and resource company with significant spodumene concentrate production and downstream processing capacity. Comparable to Sigma in concentrate production and battery-grade chemical output, though much larger and integrated into the Chinese supply chain.
- Mineral Resources (MinRes): Diversified Australian mining services and resources company with a growing lithium business (Mount Marion JV). Broader incumbent in the mining space with overlapping lithium concentrate offtake relationships and similar exposure to hard-rock spodumene markets, but operates as a diversified mining contractor-plus-producer.
- Allkem (now Arcadium Lithium, acquired by Rio Tinto): Global lithium chemicals producer (now part of Rio Tinto) with operations across Argentina, Australia, and Canada, producing both lithium carbonate and spodumene concentrate. Comparable to Sigma in hard-rock and brine lithium production for global battery customers, but with diversified geography and broader corporate backing.
Direct peers
- SQM (Sociedad Química y Minera de Chile): Major Chilean lithium producer with a global footprint in specialty plant nutrition, lithium, iodine, and industrial chemicals. SQM is a direct peer in lithium carbonate/hydroxide production, serving the same EV battery customer base, though it operates primarily from brine resources rather than hard-rock mining.
- Pilbara Minerals: Australian hard-rock lithium (spodumene) producer operating the Pilgangoora mine, selling spodumene concentrate to global battery and chemical customers. Pilbara is a direct peer to Sigma Lithium in hard-rock concentrate production and offtake structures, though located in a different geography (Australia).
- Lithium Americas: North/South American-focused lithium developer advancing the Thacker Pass (Nevada) and Cauchari-Olaroz (Argentina) projects. Comparable to Sigma in Western Hemisphere lithium production and supply chain diversification positioning, though primarily a brine/lithium carbonate producer rather than hard-rock concentrate.
Emerging players
- Liontown Resources: Australian hard-rock lithium developer with the Kathleen Valley operation producing spodumene concentrate for battery manufacturers. Comparable to Sigma Lithium in hard-rock concentrate product offering and EV battery customer base, though at a smaller scale and earlier in the operational ramp.
- Vulcan Energy Resources: European geothermal-lithium developer producing zero-carbon lithium hydroxide from Upper Rhine Valley brines. Comparable to Sigma in ESG positioning and battery-grade lithium output for European OEMs, though utilizing a fundamentally different (brine/thermal) extraction technology.
Market position
Strengths2 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Sigma Lithium social profiles
Digital presenceSigma Lithium financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sigma Lithium leadership team
Management profileNumber of profiles
Profiles5 records
Sigma Lithium subsidiaries and ownership
Company hierarchySubsidiaries1 record
Sigma Lithium funding detail
Funding detailFunding overview
Funding rounds6 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sigma Lithium M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sigma Lithium
What does Sigma Lithium do?
Sigma Lithium mines hard-rock lithium ore at the Grota do Cirilo operation in Minas Gerais, Brazil, and processes it at its Greentech Industrial Plant using dense media separation technology to produce battery-grade lithium oxide concentrate (SC5 at 5% Li2O and SC6 at 6% Li2O). It also reprocesses previously untapped dry-stacked tailings into high-purity lithium fines, selling the output via direct offtake agreements to global battery manufacturers, commodity traders, and lithium chemical processors at port-delivered terms.
Is Sigma Lithium a public or private company?
Sigma Lithium is a public company. It is classified as public and is currently operating.
When was Sigma Lithium founded?
Sigma Lithium was founded in 2012. It employs 1,001 to 5,000 people.
Where is Sigma Lithium based?
Sigma Lithium is headquartered in Toronto, Canada, in the North America region.
How does Sigma Lithium make money?
Three revenue lines are on record. Lithium Oxide Concentrate Sales are the primary driver. The others are lithium Fines Sales and trade Finance Credit Lines.
Who are Sigma Lithium's main competitors?
Broad incumbents on record are Albemarle Corporation, Ganfeng Lithium, Tianqi Lithium, Mineral Resources (MinRes) and Allkem (now Arcadium Lithium, acquired by Rio Tinto). Direct peers are SQM (Sociedad Química y Minera de Chile), Pilbara Minerals and Lithium Americas. Emerging players are Liontown Resources and Vulcan Energy Resources.
Does Sigma Lithium have an API?
No public API is recorded for Sigma Lithium.
What industry is Sigma Lithium in?
Sigma Lithium's product category is Lithium Mining and Battery-Grade Concentrate Production. Its primary akta.pro industry code is IMAKAFAA, Lithium Mining & Brine Extraction, with a secondary code of IMAKAFAI, Battery-Grade Chemical Processing (LiOH/Li2CO3, Ni/Co Sulfates, Mn Sulfate). Its NAICS code is 212290 and its SIC code is 1000.