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Sigma Lithium Loads 22,000 Tonne Shipment of Triple Zero Green Lithium Concentrate to Glencore at a Premium Price

Mine Development & Operations

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SIGMA LITHIUM LOADS 22,000 TONNE SHIPMENT OF TRIPLE

ZERO GREEN LITHIUM CONCENTRATE TO GLENCORE AT A

PREMIUM PRICE

HIGHLIGHTS

• Sigma Lithium announces that it will commence loading 22,000 tonnes of Triple Zero Green

Lithium to Glencore at the Port of Vitoria during the week of November 27.

• Glencore will prepay 50% for the shipment of Sigma’s unique Triple Zero Green Lithium

concentrate at a provisional “premium” price of 9% of the quoted LME lithium hydroxide price

(average China, Japan, South Korea).

• Sigma Lithium can produce Triple Zero Green Lithium as a result of having effectively lowered its

carbon footprint with a series of pioneering initiatives, paving the way forward for the battery

materials sector, as follows:

o Zero tailings (donated and sold)

o Zero hazardous chemicals

o Zero carbon (neutrality achieved through Amazon Rainforest VERRA Carbon Credits)

• This important milestone underscores the significant capabilities and seamless integration of the

technical, commercial and logistics leadership teams in achieving a shipment cadence of

approximately 22,000 tonnes of Triple Zero Green Lithium per month.

• Demonstrates the consistent performance of Sigma Lithium’s Greentech Plant in ramp to achieve

annual nameplate capacity of 270,000 tonnes of “Triple Zero Green Lithium”.

São Paulo, Brazil – (November 27, 2023) – 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, socially and environmentally sustainable chemical-grade

lithium concentrate, announces that it will commence loading 22,000 tonnes of Triple Zero Green Lithium to

Glencore at the Port of Vitoria. Sigma’s fourth shipment is expected to begin loading on November 27 th.

Glencore is expected to prepay 50% of the fourth shipment’s value upon completion of loading . The 50%

prepayment reflects premium pricing at a 9% provisional price of lithium hydroxide at LME (average China, Japan,

South Korea) for the Company’s unique Triple Zero Green Lithium.

The shipment is part of a commercial distribution and marketing agreement with Glencore that aims to build a low

carbon, environmentally and socially sustainable global lithium supply chain for electric vehicles .

Sigma Lithium’s Triple Zero Green Lithium: The foundation of a globally sustainable supply chain

The Company’s Triple Zero Green Lithium is produced at its state-of-the-art Greentech lithium plant at its Grota

do Cirilo Project in Brazil, the first lithium project in the world without a tailings dam. With 100% dry -stacked

tailings and the absence of hazardous chemical products for processing lithium, the Company is preventing

water and soil contamination and contributing to the preservation of rivers and forests in the region.

The Company’s main achievements towards abating its carbon footprint include:

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• Zero tailings: 100% dry stacked tailings, with all by-products eliminated through sales or upcycling to pave

roads.

• Zero hazardous chemicals: Utilizes Dense Medium Separation (“DMS”) at the Greentech plant, which

does not utilize hazardous chemicals.

• Water efficiency: Utilizes 100% sewage water for its plant, fully recirculated.

• Water preservation : Preserv es 100% of the Piaui Creek source of drinking water for the communities

living around Sigma Lithium.

• Clean renewable energy : Utilizes 100% clean renewable energy for its Greentech Plant via “behind the

meter” supply agreements.

• Biodiesel: Utilizes biodiesel fuel in some of its trucking fleet, with plans to increase to up to 50% by 2025.

• Explosives / ANFO: Decreased explosives load with computerized load simulation strategies.

Further, due to the low carbon content of Sigma Lithium’s products, as well as its environmentally sustainable

production methods, the Company's carbon footprint was offset with carbon credits purchased from

Carbonext (which are verified through Verra Verified Carbon Standard), making the shipment carbon neutral.

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 chemical-grade lithium concentrate.

Sigma Lithium has been at the forefront of environmental and social sustainability in the EV battery materials

supply chain for six years and it is currently producing Triple Zero Green Lithium from its Grota do Cirilo Project

in Brazil. Phase 1 of the project is expected to produce 270,000 tonnes of Triple Zero Green Lithium annually

(36,700 LCE annually). If it determines to proceed after completion of the detailed engineering study , Phase 2

& 3 of the project are expected to increase production to 766,000 tonnes annually (or 104,200 LCE annually).

The project produces Triple Zero Green Lithium in its state-of-the-art Greentech lithium plant that uses 100%

renewable energy, 100% recycled water and 100% dry-stacked tailings.

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 June 12, 2023,

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 Noel O'Brien, B.E., MBA, F AusIMM (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

Mathew Deyoe, EVP, Corporate Strategy

+1 (201) 819-0303

[email protected]

Jamie Flegg, Director, Business Development

+1 (647) 706-1087

[email protected]

Daniel Abdo, Director, Investor Relations

+55 11 2985-0089

[email protected]

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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 Tai lings

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, includi ng whether

mineral resources will ever be de veloped 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 batte ries

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. 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.