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olivLaw · US equity research

Sigma Lithium Corporation SGML

Metal Mining · SIC 1000 · Vertical: Metal Mining (SIC 1000)

5.62USD+1.54% · 1 dayClose 04 Nov 2026

Sigma Lithium Corporation is a mining company whose main lithium project, described in its filings with the SEC, sits at the centre of its activity in Brazil. The company is of particular interest given rising demand for lithium used in electric vehicle batteries and the local processing of its ore.

The AI analysis may be outdated: new filings came after its sources (see the «AI analysis» section).

At the close of 04 Nov 2026, Sigma Lithium Corporation (SGML) stock was 5.62 USD (+1.54% on the day), with market capitalisation 626.1 m USD, beta 1.83, 52-week range 5.07–23.65 USD.

Data as of · AI analysis dated · Source: SEC filings and closing prices, computed by olivLaw.

Market cap
626.1 m USD
shares as of 31 Dec 2025
P/E (TTM)
unavailable
Diluted EPS TTM -0.45 · TTM to 31 Dec 2025
E/P (TTM)
-8.01%
TTM to 31 Dec 2025
Dividend yield
unavailable
Beta (2y)
1.83
Volatility (1y) 116%
52-week range
5.0723.65

Price history

Loading chart…

Technical reading

RSI (14)
28.6
oversold (≤ 30)
Bollinger (20, 2)
5.54 – 10.28
in the lower half of the band · %B 0.02 · band width 59.9%
SMA 50 / 200
9.46 / 12.77
downtrend (price < SMA50 < SMA200)
MACD (12, 26, 9)
-0.96 / -0.72
MACD below signal

Indicators describe past prices; on their own they do not predict direction. On our history the RSI ≤ 40 filter added no return (see the signals methodology).

Performance

CompanyS&P 500vs S&P 500Vertical median
1 month−41.2%−1.1%−40.1 pp—
3 months−46.7%−0.5%−46.3 pp—
6 months−75.4%+4.4%−79.8 pp—
Year to date−57.4%+12.3%−69.7 pp—
1 year+20.1%+13.5%+6.5 pp−9.4%
3 years−78.3%+76.4%−154.7 pp+102.6%
5 years−39.7%+63.7%−103.4 pp—
Max drawdown (1y)
−78.0%
07 May 2026 → 02 Nov 2026
Max drawdown (5y)
−89.9%
17 May 2023 → 25 Jun 2025
Compound annual growth (5y)
−9.6%
S&P 500 +10.4%

Price returns, dividends excluded.

Quarterly results

ESEF annual reports carry no quarters: the results are annual (below).

E/P over time

E/P = trailing-12-month diluted EPS / price at quarter end. E/P is the inverse of P/E and stays defined when earnings are negative.

Fiscal years

Fiscal year202020212022202320242025
Revenueunavailableunavailableunavailable181.2 m151.4 m110.0 m
Revenue YoYunavailableunavailableunavailableunavailable−16.5%−27.3%
Net incomeunavailableunavailableunavailable-38.2 m-51.4 m-50.2 m
Net income YoYunavailableunavailableunavailableunavailableunavailableunavailable
Diluted EPSunavailableunavailableunavailableunavailable-0.46-0.45
Diluted EPS YoYunavailableunavailableunavailableunavailableunavailableunavailable
net %unavailableunavailableunavailable-21.1%-34.0%-45.6%
Free cash flowunavailableunavailableunavailableunavailable-35.0 m-7.4 m

Reported results vs expectations

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Balance sheet & financial health

Fiscal year 2025 · 31 Dec 2025

Cash
6.2 m USD
Financial debt
13.2 m USD
Net debt
7.0 m USD
Equity
56.6 m USD
Total assets
293.7 m USD
Debt / equity
0.23x
Current ratio
0.25x
ROE
-67.4%
ROA
-16.2%
FCF margin
-6.8%

Financial statements (source on every figure)

Revenue and net income (USD)

Margins

Income statement · USD

Revenue
2023
181.2 m
2024
151.4 m
2025
110.0 m

SEC (XBRL)· 30 Mar 2026verified

Cost of revenue
2023
—
2024
119.7 m
2025
91.6 m

SEC (XBRL)· 30 Mar 2026verified

Gross profit
2023
—
2024
31.6 m
2025
18.4 m

SEC (XBRL)· 30 Mar 2026verified

Operating income
2023
—
2024
-36.7 m
2025
-42.5 m

SEC (XBRL)· 30 Mar 2026verified

Depreciation & amortisation
2023
—
2024
—
2025
-2.0 m

SEC (XBRL)· 30 Mar 2026verified

EBITDA
2023
—
2024
—
2025
-40.5 m ≈

SEC (XBRL)· 30 Mar 2026derived

Interest expense
2023
—
2024
-32.0 m
2025
-26.2 m

SEC (XBRL)· 30 Mar 2026verified

Pre-tax income
2023
—
2024
-66.0 m
2025
-34.4 m

SEC (XBRL)· 30 Mar 2026verified

Income tax
2023
—
2024
14.6 m
2025
-15.8 m

SEC (XBRL)· 30 Mar 2026verified

Net income
2023
-38.2 m
2024
-51.4 m
2025
-50.2 m

SEC (XBRL)· 30 Mar 2026verified

Diluted EPS
2023
—
2024
-0.46
2025
-0.45

SEC (XBRL)· 30 Mar 2026verified

Weighted average diluted shares
2023
108.0 m
2024
110.8 m
2025
111.3 m

SEC (XBRL)· 30 Mar 2026verified

Balance sheet · USD

Cash
2023
48.6 m
2024
45.9 m
2025
6.2 m

SEC (XBRL)· 30 Mar 2026verified

Inventories
2023
14.7 m
2024
16.1 m
2025
20.7 m

SEC (XBRL)· 30 Mar 2026verified

Current assets
2023
107.6 m
2024
92.8 m
2025
49.2 m

SEC (XBRL)· 30 Mar 2026verified

Total assets
2023
367.6 m
2024
327.1 m
2025
293.7 m

SEC (XBRL)· 30 Mar 2026verified

Long-term debt
2023
107.1 m
2024
112.0 m
2025
13.2 m

SEC (XBRL)· 30 Mar 2026verified

Current liabilities
2023
92.3 m
2024
108.8 m
2025
200.5 m

SEC (XBRL)· 30 Mar 2026verified

Equity
2023
161.7 m
2024
92.3 m
2025
56.6 m

SEC (XBRL)· 30 Mar 2026verified

Shares outstanding at year end
2023
110.1 m
2024
111.3 m
2025
111.4 m

SEC (XBRL)· 30 Mar 2026verified

Cash flow · USD

Operating cash flow
2023
—
2024
-18.3 m
2025
2.4 m

SEC (XBRL)· 30 Mar 2026verified

Capex
2023
—
2024
16.7 m
2025
9.9 m

SEC (XBRL)· 30 Mar 2026verified

Free cash flow
2023
—
2024
-35.0 m ≈
2025
-7.4 m ≈

SEC (XBRL)· 30 Mar 2026derived

Investing cash flow
2023
—
2024
-23.6 m
2025
-12.0 m

SEC (XBRL)· 30 Mar 2026verified

Financing cash flow
2023
—
2024
53.7 m
2025
-33.3 m

SEC (XBRL)· 30 Mar 2026verified

Computed indicators

Growth

Revenue growth (YoY)
-27.3%
computed by olivLawFY 2025
Revenue CAGR 3Y
unavailable
input data missing
Revenue CAGR 5Y
unavailable
input data missing
EBIT growth (YoY)
unavailable
the base of the ratio is not positive
Net income growth (YoY)
unavailable
the base of the ratio is not positive
Net income CAGR 3Y
unavailable
input data missing
Net income CAGR 5Y
unavailable
input data missing
EPS growth (YoY)
unavailable
the base of the ratio is not positive
EPS CAGR 3Y
unavailable
input data missing
EPS CAGR 5Y
unavailable
input data missing
FCF growth (YoY)
unavailable
the base of the ratio is not positive

Profitability

Gross margin
16.7%
computed by olivLawFY 2025
EBITDA margin
-36.8%
computed by olivLawFY 2025
EBIT margin
-38.6%
computed by olivLawFY 2025
Net margin
-45.6%
computed by olivLawFY 2025
FCF margin
-6.8%
computed by olivLawFY 2025

Returns

ROE
-67.4%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
ROA
-16.2%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
ROIC
-32.1%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
ROCE
-45.5%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
Payout ratio (EPS)
unavailable
input data missing
Payout ratio (FCF)
unavailable
input data missing

Balance sheet

Net debt
7.0 m USD
computed by olivLawbalance sheet at 31 Dec 2025
Net debt / EBITDA
unavailable
insufficient data
Debt / equity
0.2x
computed by olivLawbalance sheet at 31 Dec 2025
Interest coverage
-1.6x
computed by olivLawFY 2025

Liquidity

Current ratio
0.2x
computed by olivLawbalance sheet at 31 Dec 2025
Quick ratio
0.1x
computed by olivLawbalance sheet at 31 Dec 2025
Cash ratio
0.0x
computed by olivLawbalance sheet at 31 Dec 2025

Cash

Operating cash flow
2.4 m USD
computed by olivLawFY 2025
Capital expenditure
9.9 m USD
computed by olivLawFY 2025
Free cash flow
-7.4 m USD
computed by olivLawFY 2025
FCF conversion
unavailable
insufficient data
Cash conversion
unavailable
insufficient data

Efficiency

Days sales outstanding
unavailable
input data missing
Days inventory outstanding
73 days
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
Days payables outstanding
unavailable
input data missing
Cash conversion cycle
unavailable
input data missing

Market and valuation

Market capitalisation
626.1 m USD
computed by olivLawbalance sheet at 31 Dec 2025
Enterprise value
633.1 m USD
computed by olivLawbalance sheet at 31 Dec 2025
Market cap / net income TTM
unavailable
insufficient data
P/E (TTM)
unavailable
insufficient data
Earnings yield
-8.0%
computed by olivLawFY 2025
P/B
11.1x
computed by olivLawbalance sheet at 31 Dec 2025
P/S
5.7x
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
EV/EBITDA
unavailable
insufficient data
EV/EBIT
unavailable
insufficient data
EV/Sales
5.8x
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
P/FCF
unavailable
the base of the ratio is not positive
FCF yield
-1.2%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
Dividend yield
unavailable
no dividend in the structured statements; a missing line is not a confirmed zero
Shareholder yield (distributions)
unavailable
input data missing

Risk

Altman Z
unavailable
input data missing

Valuation

olivLaw classification

Insufficient data
What is missing
  • indicators available: 5 of at least 6
  • score weight coverage: 35.4% of at least 60%

A scoring methodology on indicators and valuation, not investment advice.

Closing price

5.62 USD

04 Nov 2026Source: olivLaw, closing series

Market cap: 626.1 m USD

Key indicators

Market capitalisation
626.1 m USD
computed by olivLawbalance sheet at 31 Dec 2025
P/E (TTM)
unavailable
insufficient data
P/B
11.1x
computed by olivLawbalance sheet at 31 Dec 2025
EV/EBITDA
unavailable
insufficient data
ROE
-67.4%
computed by olivLawFY 2025 · balance sheet at 31 Dec 2025
Net margin
-45.6%
computed by olivLawFY 2025
Revenue growth (YoY)
-27.3%
computed by olivLawFY 2025
Dividend yield
unavailable
no dividend in the structured statements; a missing line is not a confirmed zero

Coverage and freshness

25/37 reporting lines present
Latest full fiscal year: 2025
Latest reported period: 31 Dec 2025
Latest balance sheet date: 31 Dec 2025
Share count (cover of the latest filing), as of: 31 Dec 2025
Source: SEC (XBRL)published 30 Mar 2026
verified 75

Score by group

35% · Insufficient data

Estimated value range

Low
1.33
USD per share
Mid
1.61
USD per share
High
2.05
USD per share
Price: 5.62 USD
The price is above the range
Potential to the central value: -71.3% (value / price − 1)
Margin of safety: -249.0% (1 − price / value)
Agreement between methods: single method · 1 methods used · 1 independent bases

The combined range = the median of the valid methods' low, central and high values; it is not a probability interval and does not cover every result. Envelope of all methods: 1.33 – 2.05 USD.

Valuation assumptions are editorial choices, not measured; beta is not measured.

Method ranges (USD per share)

— — Mid · ▏ Price

Valuation methods

  • DCF (discounted cash flow)1.33 – 2.05 (Mid 1.61)
    WACC 9.2% · starting FCFF 14.6 m USD · terminal value share of EV 72%
    The WACC × g sensitivity gives the method's bounds; these are not probabilities.
    Reverse DCF: no growth between −30% and +40% justifies the price
  • Peers: EV/EBITDAunavailable · the base of the ratio is not positive
  • Peers: P/Eunavailable · the base of the ratio is not positive
  • Dividend discount (DDM)unavailable · the company pays no dividend: a dividend model needs an explicit initiation assumption
Multiple comparisons use the SIC vertical: Metal Mining (SIC 1000)

Classification (SIC) comparables group by industry code, not by economic activity; the direct group is an editorial selection by activity. Members' multiples are on their own trailing twelve months, at their own latest close.

Assumptions (illustrative, editorial)

Risk-free rate
4.3%
Equity risk premium
5.0%
Beta (default)
1.00
Cost of equity
9.3%
Terminal growth
2.5%

Factor scorecard

Insufficient data

Minimum-evidence gate: indicators available: 5 of at least 6; score weight coverage: 35.4% of at least 60%

FactorValueScoreWeight used
ROIC · Quality-32.1%9 (vs peers)29%
Net margin · Quality-45.6%32 (vs peers)18%
FCF conversion · Qualityunavailableunavailable—
Revenue CAGR 3Y · Growthunavailableunavailable—
EPS CAGR 3Y · Growthunavailableunavailable—
Net debt / EBITDA · Balance sheetunavailableunavailable—
Interest coverage · Balance sheet-1.6x0 (on a fixed band)18%
Current ratio · Balance sheet0.2x0 (on a fixed band)12%
P/E (TTM) · Valuationunavailableunavailable—
EV/EBITDA · Valuationunavailableunavailable—
FCF yield · Valuation-1.2%0 (on a fixed band)24%
Shareholder yield (distributions) · Returnsunavailableunavailable—
Payout ratio (FCF) · Returnsunavailableunavailable—

Factors without a value were dropped; the remaining weights were renormalised.

Score groups

  • Balance sheet0/100 · 2/3 factors with a value
  • Growth· partialunavailable · 0/2 factors with a value
  • Quality18/100 · 2/3 factors with a value
  • Returns· partialunavailable · 0/2 factors with a value
  • Valuation· partial0/100 · 1/3 factors with a value

A «partial» group is computed from under half of its weight or from one factor: it is not a full assessment of the group.

Memo

SIGMA LITHIUM CORPORATION (SGML). Latest full fiscal year: 2025; data up to 2025-12-31.

Figures computed from the financial statements: revenue 110.0 m USD in 2025; YoY growth -27.3%; net margin -45.6%; ROE -67.4%.

The estimated value range is 1.33–2.05 USD per share (median of 1 methods, agreement: single method); assumptions are illustrative. Against the central value of 1.61 USD, the price of 5.62 USD leaves a potential of -71.3% (value / price − 1) and a margin of safety of -249.0% (1 − price / value). The range is the median of the methods' low, central and high values, not a probability interval.

Insufficient data for a verdict (indicators available: 5 of at least 6; score weight coverage: 35.4% of at least 60%).

Text generated deterministically from the figures shown; no language model. Not investment advice.

What supports the thesis

No signal among the computed factors. That is not an absence of risk: factors without data were not assessed, and business risks (margins, inventory, demand) are in the source-based analysis.

What contradicts it

  • ROIC: -32.1%
  • Interest coverage: -1.6x
  • Current ratio: 0.2x
  • FCF yield: -1.2%
  • The price is above the estimated value range

Not assessed (insufficient data or a ratio without meaning): FCF conversion, Revenue CAGR 3Y, EPS CAGR 3Y, Net debt / EBITDA, P/E (TTM), EV/EBITDA, Shareholder yield (distributions), Payout ratio (FCF).

Versus the vertical median

Metal Mining (SIC 1000) · same industry (4-digit SIC) · compared with 26 companies

Multiples and returns vs the median

P/E
—
vertical median 16.8x
EV/EBITDA
—
vertical median 13.4x
P/S
5.7x
vertical median 7.9x
below median (−28.3%)
P/B
11.1x
vertical median 2.5x
above median (+347.0%)
ROE
-67.4%
vertical median -8.4%
below median
Net margin
-45.6%
vertical median 4.4%
below median (−1,132.6%)
EBIT margin
-38.6%
vertical median 16.6%
below median (−332.8%)
Revenue YoY
-27.3%
vertical median 9.0%
below median (−405.1%)
Net debt/EBITDA
—
vertical median 0.6x
Dividend yield
—
vertical median 1.7%

Price rebased to 100 (monthly, 5 years)

Companies in the vertical

Market capP/EROENet marginRevenue YoY1A / 3A
BHPBhp Group Limited406.8 bn45.219.5%17.6%−7.9%+46% / +31%
SCCOSouthern Copper Corp149.3 bn23.053.2%37.3%+17.4%+35% / +163%
RIORio Tinto PLC106.2 bn13.917.0%17.3%+7.4%+18% / +22%
FCXFreeport-McMoRan Inc.89.9 bn29.221.8%16.2%+1.8%+46% / +68%
HBMHudbay Minerals Inc.8.8 bn15.419.7%25.7%+9.4%+31% / +388%
CLFCleveland-Cliffs Inc.7.3 bn—-8.5%-2.4%−3.0%−2% / −25%
BVNBuenaventura Mining Co Inc7.3 bn18.112.6%34.9%+40.1%+16% / +202%
MPMP Materials Corp.6.4 bn—-4.1%-19.9%+10.1%−42% / +126%
EROEro Copper Corp3.2 bn12.234.6%33.6%+67.1%+21% / +150%
NEXANexa Resources S.A.1.6 bn11.914.6%4.4%+8.5%+70% / +103%
IEIvanhoe Electric Inc.1.2 bn—-8.4%-1,138.7%+11.8%−46% / −32%
USARUSA Rare Earth, Inc.1.1 bn—-23.6%-2,159.3%unavailable−39% / −20%
TMCTMC the metals Co Inc.1.0 bn4.2-1,123.2%—unavailable−67% / +103%
USASAmericas Gold And Silver Corporation986.9 m—-61.6%-74.1%+17.7%−31% / +413%
ASMAvino Silver & Gold Mines Ltd.769.3 m79.07.0%12.2%+50.8%−15% / +746%
LARLithium Argentina AG682.1 m—-9.5%—+12.9%−24% / −21%
SGMLSigma Lithium Corporation626.1 m—-67.4%-45.6%−27.3%+20% / −78%
GSMFerroglobe PLC547.5 m—-25.9%-12.8%−18.8%−34% / −49%
ALOYRealloys Inc.459.5 m—-155.8%-5,144.4%−5.3%−5% / +68%
THMInternational Tower Hill Mines Ltd455.2 m—-2.8%—unavailable−10% / +222%
LZMLifezone Metals Limited336.9 m—-16.7%-1,289.2%+652.2%+1% / −60%
USAUU.s. Gold Corp.186.4 m—-55.2%—−30.9%−35% / +239%
PZGParamount Gold Nevada Corp.83.9 m—-46.1%—−54.7%−20% / +146%
WWRWestwater Resources, Inc.52.5 m—-19.1%—unavailable−57% / −33%
COPRIdaho Copper Corporation25.7 m—-187.5%—−63.5%unavailable / unavailable

1- and 3-year price returns: for SGML from daily closes (the same as the performance table), for the other companies from month-end closes.

olivLaw engine forecast

The world engine ran after the company's latest material disclosure. Probabilities are of TOUCHING a level within the horizon (not closing there) and sit next to the random walk (p_rw), the no-information benchmark.

The engine has no published run for this company yet.

Valuation scenarios (editable assumptions)

Illustrative scenarios

Illustrative: not forecasts and without probabilities. Each case is one coherent set of assumptions, computed on today's figures.

Bear
Allowed range: -50 … 50%
Allowed range: -100 … 100%
Allowed range: 0 … 100
Allowed range: -10 … 20%
Allowed range: 0 … 100%
Base
Allowed range: -50 … 50%
Allowed range: -100 … 100%
Allowed range: 0 … 100
Allowed range: -10 … 20%
Allowed range: 0 … 100%
Bull
Allowed range: -50 … 50%
Allowed range: -100 … 100%
Allowed range: 0 … 100
Allowed range: -10 … 20%
Allowed range: 0 … 100%
Nothing is saved.

Estimated price (USD)

Estimated priceBearBaseBull
1 years
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
3 years
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
5 years
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
insufficient data
Total return unavailable · Per year unavailable
What moves the 3-year price the most

    AI analysis

    AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 27 Oct 2026 · Model: claude-haiku-5-5.

    Possibly outdated: the newest document it read is from 30 Mar 2026; since then the company filed 6-K (03 Nov 2026), 6-K (02 Nov 2026), 6-K (23 Oct 2026), 6-K (06 Oct 2026), 6-K (01 Oct 2026).

    In brief

    Sigma Lithium Corporation is a mining company whose main lithium project, described in its filings with the SEC, sits at the centre of its activity in Brazil. The company is of particular interest given rising demand for lithium used in electric vehicle batteries and the local processing of its ore.

    SWOT

    Strengths

    • The company publishes audited financial statements from a firm based in Brazil and has an audit committee with independent members, which supports the credibility of its reporting.
    • A code of conduct applicable to all personnel and the absence of waivers in fiscal 2025 point to a culture of compliance.
    • Reporting under IFRS and the NI 43-101 standard provides a detailed technical basis for its mineral properties.

    Weaknesses

    • Resource estimates are not directly comparable with those of companies reporting under the SEC, which may limit understanding among US investors.
    • The main document is a form that refers to exhibits, and the financial and operational details are spread across several documents.
    • The source does not give in its own text figures on production, revenue or costs, which makes performance assessment difficult from this single document.

    Opportunities

    • Demand for lithium from the battery industry could support expansion of activity if projects are developed as planned.
    • Local processing of ore in Brazil could bring cost and supply chain advantages if confirmed in later documents.
    • Greater transparency towards US investors could strengthen interest in the company if reporting differences are clearly explained.

    Threats

    • Changes in Brazilian mining regulation could affect permits and operating costs.
    • Volatility in lithium prices could reduce revenue if demand or supply shifts suddenly.
    • Differences in accounting and reporting standards from the SEC could create uncertainty for investors who compare companies.

    Risks

    • Differences in reporting from the SEChigh

      Resource and reserve estimates are prepared under NI 43-101, which differs significantly from SEC requirements, so the information is not comparable with that of US companies 1.

    • Reliance on external auditmedium

      The audit is performed by a firm in Brazil, and if issues of independence or standards arise, confidence in the financial statements could be affected 1.

    • Local mining regulationmedium

      The company is not subject to MSHA, but its operations are governed by Brazilian law, and changes to it could influence costs and project timing 1.

    • Market and financial exposuremedium

      The document refers to the market risk section in exhibit 99.2, which indicates financial exposures that could affect results if conditions change 1.

    • Concentration of information in exhibitslow

      Many essential details are included by reference in other documents, which can make a full assessment difficult from the main form alone 1.

    Investment thesis

    What would need to be true (bull case)

    • If demand for lithium remains solid, the company's projects could generate significant growth in activity, and detailed reporting could support investor confidence.
    • A governance structure with an independent audit committee and a designated financial expert could reduce long-term reporting risks.
    • Local processing of lithium in Brazil could offer a competitive advantage if the efficiency of the operations is confirmed.

    What would break the thesis

    • Differences from SEC standards could limit interest from US investors and make comparisons more difficult.
    • Dependence on Brazilian regulation and local conditions could affect project costs and timing.
    • The lack of financial and operational figures in the main document could make performance assessment difficult without other sources.

    What to watch

    • Management's Discussion and Analysis in exhibit 99.2 and production and revenue figuresnext 10-K
    • Updates to resource and reserve estimates under NI 43-1012027
    • Changes to mining regulation in Brazil2027
    • Audit results and any change of audit firm2027

    Products, market & competition

    AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 27 Oct 2026 · Model: claude-haiku-5-5.

    Possibly outdated: the newest document it read is from 30 Mar 2026; since then the company filed 6-K (03 Nov 2026), 6-K (02 Nov 2026), 6-K (23 Oct 2026), 6-K (06 Oct 2026), 6-K (01 Oct 2026).

    The business

    Sigma Lithium Corporation files Form 40-F with the SEC, which shows it reports under Canadian requirements adapted through the multijurisdictional disclosure system. Its financial statements are prepared under IFRS, while information on its mineral properties follows NI 43-101, a Canadian standard that differs from the SEC rules applicable to US companies. The fiscal 2025 audit was performed by Grant Thornton Auditores Independentes Ltda., of São Paulo, Brazil 1.

    The company's reporting consists of an Annual Information Form, a Management's Discussion and Analysis and audited financial statements filed as exhibits to the Form 40-F for the year ended 31 December 2025 1. The company has a Code of business conduct applicable to the Board, officers and employees, and no waivers from this code were granted in 2025 1.

    The Audit Committee is made up of three independent members, and the Board has determined that one of them is an audit committee financial expert under US law 1. The company was not subject to MSHA regulation under the Mine Act during fiscal 2025 1.

    Segments

    Lithium mining and processing

    The main activity described in the document relates to the company's lithium mineral properties in Brazil, for which resource and reserve estimates are published under NI 43-101 1.

    Financial reporting and governance

    The documentation includes consolidated financial statements for 2025 and 2024 and Sarbanes-Oxley certifications from the chief executive and chief financial officers 1.

    Cross-border reporting requirements

    The company uses the US and Canada multijurisdictional disclosure system, which means its information is not directly comparable with that of US companies 1.

    Market context

    The sources reviewed contain no data on the size of the global lithium market, prices or market shares, so these aspects must be checked in the Management's Discussion and Analysis and the attached documents. The filing only states that disclosure on reserves and resources follows NI 43-101, which is not equivalent to the SEC standard 1.

    Market conditions could change with demand for electric vehicle batteries, but the source does not describe this environment explicitly, so conclusions remain conditional on the additional information in exhibits 99.1 and 99.2 1.

    Trends

    • Alignment of reporting with Canadian standardsmixed

      Companies reporting under the multijurisdictional system may present data different from US firms, which can complicate direct comparisons if investors use different methods 1.

    • Transparency of mineral resourcestailwind

      The NI 43-101 standard requires specific disclosures about mining projects, which could increase confidence in resource estimates if they are published with sufficient detail 1.

    • Governance and audit requirementsmixed

      The presence of an independent audit committee and a designated financial expert could reduce reporting risks, although differences from US practices may raise questions 1.

    • Mining regulation in Brazilheadwind

      The company stated it is not under US MSHA regulation, so local Brazilian rules are the relevant ones, and changes to them could affect operations 1.

    Competitive position

    The source provided does not name direct competitors or give comparative market share data. Comparable companies would need to be identified from other sources, and competitive analysis remains limited to what the Form 40-F documents disclose 1.

    The difference in reporting standards from US companies in the sector means any direct comparison would need adjustments, and this could influence how investors perceive the company's position 1.

    • Comparable companies not named in the source

      The document reviewed does not identify competitors, so no tickers can be attributed without additional sources.

    • North American lithium producers

      The source contains no verified names or data on these players, so no ticker symbols are attributed.

    • Australian lithium producers

      The source gives no information on these players, and the ticker cannot be confirmed from the documents provided.

    • Other mining companies with projects in Brazil

      Local competition is not detailed in the source, so there is no verified ticker for these companies.

    News & filings

    In the press

    Sources

    1. [1] Form 40-F, fiscal year ended 2025-12-31 · SEC / Sigma Lithium Corporation · 30 Mar 2026

    Figures computed by olivLaw from SEC filings and closing prices; the qualitative analysis is AI-generated from cited sources. Not investment advice.