6-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TORULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2024

Commission File Number: 001-40786

Sigma Lithium Corporation

(Translation of registrant's name into English)

2200 HSBC Building

885 West Georgia Street

Vancouver, British Columbia

V6C 3E8

(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

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

**Note:**Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

**Note:**Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant's "home country"), or under the rules of the home country exchange on which the registrant's securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant's security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

EXHIBIT INDEX

Exhibit	Description
99.1	Press release dated March 27, 2024

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.

	Sigma Lithium Corporation
	(Registrant)
Date: March 27, 2024
	Ana Cristina Cabral Gardner
	Chief Executive Officer

Exhibit 99.1

SIGMA LITHIUM SECURES PREMIUMFINAL PRICE OF US$ 1,333/t FOR 22,000 t OF QUINTUPLE ZERO LITHIUM, WITH 85% PRE-PAYMENT FOR DELIVERY IN 2 WEEKS

·	Sigma Lithium achieved an increased premium fixed price of US$ 1,333/t (13% VAT included),equivalent to US$ 1,160/t (net of VAT) for its 8th shipment of 22,000 tonnes for delivery within 2 weeks.
·	Price discovery was driven through closedprivate bidding, aiming to maximize the value of its commercial shipment strategy with Glencore.
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·	This price is final and non-provisionaland represents a meaningful increase over the previous premium prices achieved. As a reference, the final price net of VAT is equivalentto 8.75% of the LME Lithium Hydroxide CIF
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São Paulo, Brazil – (March 27,2024) – Sigma Lithium Corporation (“Sigma Lithium” or the “Company”) (NASDAQ: SGML,BVMF: S2GM34, TSXV: SGML), a leading global lithium producer dedicated to powering the next generation of electric vehicles with carbon neutral and sustainable, chemical grade lithium concentrate with granulated-particles (“Quintuple Zero Green Chemical Grade Coarse Lithium” or “Product”), is pleased to announce it achieved an increased premium final price of US$ 1,333/t (13% VAT included), equivalent to US$ 1,160/t (net of VAT) for its 8^th^ shipment of 22,000 tonnes currently being delivered to its EXW warehouse at the Port of Vitoria in Brazil.

This price is final andnon-provisional and represents a meaningful increase over the previous premium prices achieved by the Company.

·	As a reference, the final price netof VAT is equivalent to 8.75% of the LME Lithium Hydroxide CIF/Fastmarkets CJK price.
·	Price discovery was driven through closed private<br>bidding, aiming to maximize the value of its commercial shipment strategy. Sigma Lithium will continue to adapt its marketing strategy<br>to maximize value capture.

Included in the agreement is a cash prepayment clause, with 85% of the shipment’s value collected by loading.

·	The shipment is part of a commercial distribution<br>and marketing agreement with Glencore that aims to build a low carbon, environmentally and socially sustainable global lithium supply<br>chain for electric vehicles.

This milestone achievement represents a significant improvement in commercial terms for Sigma Lithium, consolidating our leadership in the industry as a large-scale producer of Quintuple Zero Green Chemical Grade Coarse Lithium.

The premium achieved demonstrates the product’s superior quality (chemically and physically quantifiable), as follows:

·	High-purity: low alkalines and low iron oxide<br>enable improved performance of refineries during transformation of the material into high-purity battery grade chemicals certified by<br>leading battery producers.
·	Coarse particles over 5.5mm: improve efficiency<br>and performance for refiners during calcination.

Sigma Lithium Commercial Director, Catarina Noci, notes: “The Company continues to field inbound interest at a feverish pace for our next shipments. We were on the ground in Chinaover the last month with Glencore where it became clear to us that our Quintuple Zero Green Chemical Grade Coarse Lithium concentrategained significant market share, delivering measurable savings to our customers’ refineries as a result of our Products’ superiorphysical and chemical properties. Our Product becomes increasingly valuable to our customers when markets are soft, where non-integratedrefiners and tollers alike are experiencing tighter operating margins. Sigma Lithium views the warm welcome, incredible demand and favorablecommercial terms extended to us, as a reflection of the customers having experienced, over the last 7 months, the remarkable performanceand cost savings that Sigma Lithium’s Product brings to their refineries. Therefore, we were able to monetize these tangible costssavings provided to our customers by the Product into a “high quality premium”.

Company CEO, Ana Cabral-Gardner notes, “TheCompany is now fully established as a leading producer, as a result of consistently delivering large scale shipments of a high-qualityQuintuple Zero Green Chemical Grade Coarse Lithium over the last 9 months. Therefore, we entered negotiation rounds for our 8^th^shipment with significant commercial leverage. The increased premiumization is attributable to the superior performance of our Productfor our refining clients who were able to ascertain its efficiency gains and cost savings. Additionally, as a “free bonus”we deliver the only Quintuple Zero Green Lithium in the industry, without receiving a green premium.

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Figure 1: Sigma downstreamcustomers can potentially achieve up to $3,000/t of savings in current market conditions

Figure 2:

Quintuple Zero Chemical GradeCoarse Lithium	Competing high iron oxide fines lithium concentrate

ABOUT SIGMA LITHIUM

Sigma Lithium (NASDAQ: SGML, BVMF: S2GM34, TSXV: SGML) is a leading global lithium producer dedicated to powering the next generation of electric vehicle batteries with carbon neutral, socially and environmentally sustainable lithium concentrate.

Sigma Lithium operates at the forefront of environmental and social sustainability in the EV battery materials supply chain and is currently producing Quintuple Zero Green Lithium concentrate from its Grota do Cirilo Project in Brazil. Phase 1 of the project entered commercial production in 2Q23 and has an annual capacity of 270,000 tonnes of concentrate (36,700 LCE annually). The Company is currently evaluating a decision to expand production via a Phase 2 concentrate line and associated mine which would add another 250,000 tonnes of annual Quintuple Zero Green Lithium capacity. The project produces lithium concentrate at its state-of-the-art Greentech lithium plant that uses 100% renewable energy, 100% recycled water and 100% dry-stacked tailings.

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Please refer to the Company’s National Instrument 43-101 technical report titled “Grota do Cirilo Lithium Project Araçuaí and Itinga Regions, Minas Gerais, Brazil, Amended and Restated Technical Report” issued March 19, 2024, which was prepared for Sigma Lithium by Homero Delboni Jr., MAusIMM, Promon Engenharia; Marc-Antoine Laporte, P.Geo, SGS Canada Inc; Jarrett Quinn, P.Eng., Primero Group Americas; Porfirio Cabaleiro Rodriguez, (MEng), FAIG, GE21 Consultoria Mineral; and William van Breugel, P.Eng (the “Updated Technical Report”). The Updated Technical Report is filed on SEDAR and is also available on the Company’s website.

QUALIFIED PERSON

The technical and scientific information in this news release has been reviewed and approved by Iran Zan MAIG (Membership number 7566), who is considered, by virtue of his education, experience and professional association, a Qualified Person under the terms of NI 43-101.

Mr. Zan is not considered independent under NI 43-101 as he is Sigma Lithium co-Head of Geology and co-General Manager of Sigma Lithium. Mr. Zan has verified the technical data disclosed in this news release.

For more information about Sigma Lithium, visit https://www.sigmalithiumresources.com/

FOR ADDITIONAL INFORMATIONPLEASE CONTACT

Matthew DeYoe, EVP Corporate Affairs & Strategic Development

+1 (201) 819-0303

matthew.deyoe@sigmalithium.com.br

Daniel Abdo, Director, Investor Relations

+55 11 2985-0089

daniel.abdo@sigmalithium.com.br

Sigma Lithium

Sigma<br> Lithium
@sigmalithium
@SigmaLithium

FORWARD-LOOKING STATEMENTS

This news release includes certain "forward-lookinginformation" under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timingand costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positiveecosystem 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 operationalstatus of the Groto 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-lookinginformation 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 demandis 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 intomineral reserves; and the Company’s ability to operate its mineral projects including that the Company will not experience anymaterials or equipment shortages, any labour or service provider outages or delays or any technical issues. Although management believesthat the assumptions and expectations reflected in the forward-looking information are reasonable, there can be no assurance that theseassumptions 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 vehiclesand other large format batteries currently has limited market share and no assurances can be given for the rate at which this marketwill develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be noassurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipatedin such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intentionor obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, exceptas required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ fromcurrent expectations, please refer to the current annual information form of the Company and other public filings available under theCompany’s profile at www.sedar.com.

Neither the TSX Venture Exchange nor itsRegulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacyor accuracy of this news release.

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