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SGML.V ·

Sigma Lithium Sells 22,000t of Quintuple Zero Lithium at Premium Price of 8.75% LME Hydroxide

Corporate Updates

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SIGMA LITHIUM SELLS 22,000t OF QUINTUPLE ZERO LITHIUM

AT PREMIUM PRICE OF 8.75% LME HYDROXIDE

HIGHLIGHTS

• Sigma Lithium completed the sale of its 10th shipment of 22,000t of Quintuple Zero Green Lithium

at a premium floating price of 8.75% of LME Lithium Hydroxide (CIF Shanghai basis).

• The Quintuple Zero Green Lithium will be shipped in early July, capping our first 11 months of

consistent shipments and demonstrating the operational discipline of a seasoned producer

São Paulo, Brazil – (July 1, 2024) – Sigma Lithium Corporation NASDAQ: SGML, BVMF: S2GM34, TSXV:

SGML), a leading global lithium producer dedicated to powering the next generation of electric vehicles with

carbon neutral, socially and environmentally sustainable lithium concentrate, is pleased to announce it

completed the sale of its 10 th shipment of 22,000t of Quintuple Zero Lithium at a premium floating price of

8.75% of LME Lithium Hydroxide quoted at LME (CIF Shanghai basis).

The 22,000 tonne shipment is scheduled for departure in early July, maintaining the operational cadence of

delivering its Quintuple Zero Green Lithium to customers on a reliable basis.

• On June 30, 2024, Sigma concluded a FOB export sale at Victoria Port’s warehouse for 17,200 tonnes

of Sigma’s Quintuple Zero Lithium concentrate with the additional 4,800 tonnes balance for a total of

22,000 tonnes to be shipped in early July.

Sigma Lithium continue s to refine its commercial strategy for its Quintuple Zero Lithium . The Company has

experienced robust demand for its lithium concentrate, which delivers measurable cost savings to its customers

as a result of the product’s superior physical and chemical properties.

CEO and Co -Chairperson, Ana Cabral, notes : “Over our first 11 months of operations, Sigma Lithium ha s

cemented its reputation as a sustainable and reliable producer, consistently executing large scale quasi-monthly

deliveries of our high-quality Quintuple Zero Green Chemical Grade Coarse Lithium ”.

“Over these 10 shipments, we’ve established a solid base of clients w ho enjoy measurable “value-in-use”, and

the 20 -30% cost savings provided by our unique product’ s high purity , low mica contaminants and coarse

particles (over 6.5mm). On top of that, we’re supplying our clients with the only zero carbon lithium in the industry

and not charging a penny extra for it. In other words we’re not receiving a green premium.”

Sigma Lithium Commercial Director Catarina Noci adds: “We continue to pursue a premiumization strategy for

our product, while floating our formula based on the LME lithium hydroxide price to share the lithium pricing risk

with our clients, providing battery makers and auto makers price predictability . Our strategy is to work with our

large commercial partners to monetize their tangible cost savings into a “high quality premium”. Our product

becomes increasingly valuable to our customers when end-users who rely on tolling agreements with non-

integrated refiners experience tighter operating conditions.”

ABOUT SIGMA LITHIUM

Sigma Lithium (NASDAQ: SGML, TSXV: SGML, BVMF: S2GM34) is a leading global lithium producer dedicated

to powering the next generation of electric vehicle batteries with carbon neutral, socially and environmentally

sustainable chemical-grade lithium concentrate.

Sigma Lithium is one of the world’s largest lithium producers with an annual production capacity of 270,000

tonnes of chemical grade lithium concentrate (36,700 LCE annually). The Company operates at the forefront

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of environmental and social sustainability in the EV battery materials supply chain at its Grota do Cirilo

Operation in Brazil. The Company produces Quintuple Zero Green Lithium at its state-of-the-art Greentech

lithium plant that delivers zero carbon lithium, produced with zero dirty power, zero potable water, zero toxic

chemicals and zero tailings’ dams.

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 has issued a Final Investment Decision formally approving

construction to nearly double capacity to 520,000 tonnes of concentrate through the addition of a Phase 2

expansion of its Greentech Plant.

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 L ithium 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.

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

FOR ADDITIONAL INFORMATION PLEASE CONTACT

Matthew DeYoe, EVP Corporate Affairs & Strategic Development

+1 (201) 819-0303

[email protected]

Daniel Abdo, Director, Investor Relations

+55 11 2985-0089

[email protected]

Sigma Lithium

Sigma Lithium

@sigmalithium

@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 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 -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 labour 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 inhere ntly

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 ac tual results and future events could differ materially from those anticipated in such statements.

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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.sedar.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.