UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
6-K
REPORT
OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR
15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934
For
the month of March 2026
Commission
File Number: 001-40786
Sigma
Lithium Corporation
(Translation of registrant's name into English)
181,
Bay Street, Suite 4400
Toronto, Ontario, M5J 2T3, Canada
(Address of principal executive office)
Indicate
by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ ] Form 40-F [X]
EXHIBIT
INDEX
| Exhibit |
Description |
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| 99.1 |
Press Release dated March 29, 2026 |
SIGNATURES
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
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Sigma Lithium Corporation |
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(Registrant) |
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| Date: March 29, 2026 |
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/s/ Ana Cristina Cabral |
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Ana Cristina Cabral |
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Chief Executive Officer |
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SIGMA LITHIUM
ANNOUNCES 2025 FULL YEAR
EARNINGS PRESENTATION CALL
ON MARCH 30 AT 7:30 AM EST
SUMMARY
| · | Event
Title: Sigma Lithium Fourth Quarter 2025 Earnings Results Call |
| · | Event
Date: March 30, 2026 |
| · | Start
Time: 7:30 a.m. EST |
| · | Attendee
URL: https://mzgroup.zoom.us/webinar/register/WN_-yfOrvFmTCqtQXGv6fVr5g |
São Paulo, March 29,
2026 – Sigma Lithium Corporation (NASDAQ: SGML, TSX-V:SGML BVMF: S2GM34) (“Sigma Lithium” or the “Company”),
the largest producer of lithium oxide concentrate in the Americas and dedicated to industrializing socially and environmentally sustainable
lithium materials to supply global producers of batteries for energy security, will hold the Company’s 2025 full year earnings presentation
call shortly after results release on Monday, March 30, 2026, at 7:30 a.m. EST.
Access to the call will be via
live webcast and a recording will be available approximately an hour after the event.
A link to the live and the on-demand
webcast will be available on Sigma Lithium’s website at:
https://ir.sigmalithiumcorp.com/events/
ABOUT SIGMA
LITHIUM
Sigma Lithium Corporation (NASDAQ:
SGML, TSXV: SGML, BVMF: S2GM34), (“Sigma Lithium” or “the Company”) is the largest producer of lithium oxide concentrate
in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers
of batteries for energy security.
The Company operates one of
the world’s largest lithium production sites—the fifth-largest industrial-mineral complex for lithium oxide concentrate—at
its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric
battery materials supply chain. The Company’s Greentech Industrial Plant combines dry stacking, the reuse of 100% of water, zero
use of toxic chemicals and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident
with lost time.
Sigma Lithium currently has
a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000–40,000
tonnes of LCE) at its mine and state-of-the-art Greentech Industrial Plant. The Company has initiated the construction of a second plant
to double its production capacity. For more information about Sigma Lithium, visit our website
FOR ADDITIONAL INFORMATION PLEASE
CONTACT
Anna Hartley,
Vice President of Global Banking and Investor Relations
anna.hartley@sigmalithium.com.br
+44 7866 458 093
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Mariana Bengtson,
Investor Relations Manager
mariana.bengtson@sigmalithium.com.br
+55 11 9 2144 2750
Sigma
Lithium
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Sigma Lithium |
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@sigmalithium |
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@SigmaLithium |
FORWARD-LOOKING
STATEMENTS
This
news release includes certain “forward-looking information” under applicable Canadian and U.S. securities legislation, including
but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the
environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities
relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes,
production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements
that address future plans, activities, events, estimates, expectations or developments that the Company believes, expects or anticipates
will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral
reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other
things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil;
demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company’s market position
and future financial and operating performance; the Company’s estimates of mineral resources and mineral reserves, including whether
mineral resources will ever be developed into mineral reserves; and the Company’s ability to operate its mineral projects including
that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical
issues. Although management believes that the assumptions and expectations reflected in the forward-looking information are reasonable,
there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves
and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current
levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can
be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to
develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events
could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking
information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of
new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions
that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company
and other public filings available under the Company’s profile at www.sedarplus.com.
Neither the TSX Venture Exchange
nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for
the adequacy or accuracy of this news release.
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