Sigma Lithium : Investor Presentation (58a3f8e3 b977 4a58 a1a5 7759e0e0c518)

Published: 2025-06-12 20:56:05 ET SGML.V

Published on 06/12/2025 at 20:56

June 12, 2025

: SGML

: SGML

: S2GM34

(…) to risks associated with its reliance on consultants and others for mineral exploration and exploitation expertise; The current COVID-19 pandemic could have a material adverse effect on Sigma's business, operations, financial condition and stock price; If Sigma is unable to ultimately generate sufficient revenues to become profitable and have positive cash flows, it could have a material adverse effect on its prospects, business, financial condition, results of operations or overall viability as an operating business Sigma is subject to liquidity risk and therefore may have to include a "going concern" note in its financial statements; Sigma may not be able to obtain sufficient financing in the future on acceptable terms, which could have a material adverse effect on Sigma's business, results of operations and financial condition. In order to obtain additional financing, Sigma may conduct additional (and possibly dilutive) equity offerings or debt issuances in the future; Sigma may be unable to achieve cash flow from operating activities sufficient to permit it to pay the principal, premium, if any, and interest on Sigma's indebtedness, or maintain its debt covenants; Sigma has not declared or paid dividends in the past and may not declare or pay dividends in the future; Sigma will incur increased costs as a result of being a public company both in Canada listed on the TSXV and in the United States listed on Nasdaq, and its management will be required to devote further substantial time to United States public company compliance efforts; If Sigma does not maintain adequate and appropriate internal controls over financial reporting as outlined in accordance with National Instrument 52-109 - Certification of Disclosure in Issuers' Annual and Interim Filings or the rules and regulations of the U.S. Securities and Exchange Commission (the "SEC"), Sigma will have to report a material weakness and disclose that Sigma has not maintained appropriate internal controls over financial reporting; As a foreign private issuer, Sigma is subject to different U.S. securities laws and rules than a domestic U.S. issuer, which may limit the information publicly available to its shareholders; Failure to retain key officers, consultants and employees or to attract and, if attracted, retain additional key individuals with necessary skills could have a materially adverse impact upon Sigma's success; Sigma is subject to currency fluctuation risks; From time to time, Sigma may become involved in litigation, which may have a material adverse effect on its business financial condition and prospects; Certain directors and officers of Sigma are, or may become, associated with other natural resource companies which may give rise to conflicts of interest; The market price for Sigma's shares may be volatile and subject to wide fluctuations in response to numerous factors beyond its control, and Sigma may be subject to securities litigation as a result; If securities or industry analysts do not publish research or reports about Sigma's business, or if they downgrade the common shares of Sigma (the "Common Shares"), the price of the Common Shares could decline; Sigma will have broad discretion over the use of the net proceeds from offerings of its securities; There is no guarantee that the Common Shares will earn any positive return in the short term or long term; Sigma has a major shareholder which owns 47.7% of the outstanding Common Shares and, as such, for as long as such shareholder directly or indirectly maintains a significant interest in Sigma, it may be in a position to affect Sigma's governance, operations and the market price of the Common Shares; As Sigma is a Canadian corporation but most of its directors and officers are not citizens or residents of Canada or the U.S., it may be difficult or impossible for an investor to enforce judgements against Sigma and its directors and officers outside of Canada and the U.S. which may have been obtained in Canadian or U.S. courts or initiate court action outside Canada or the U.S. against Sigma and its directors and officers in respect of an alleged breach of securities laws or otherwise. Similarly, it may be difficult for U.S. shareholders to effect service on Sigma to realize on judgments obtained in the United States; Sigma is governed by the corporate and securities laws of the Province of Ontario and of Canada, which in some cases have a different effect on shareholders than U.S. corporate laws and U.S. securities laws; Sigma is subject to risks associated with its information technology systems and cyber-security; Sigma may be a Passive Foreign Investment Company, which may result in adverse U.S. federal income tax consequences for U.S. holders of Common Shares.

Readers are cautioned that the foregoing lists of assumptions and risks is not exhaustive. The Forward-Looking Information contained in this presentation is expressly qualified by these cautionary statements. All Forward Looking Information in this presentation speaks as of the date of such statements were made, as applicable. Sigma does not undertake any obligation to update or revise any Forward-Looking Information, whether as a result of new information, future events or otherwise, except as required by applicable securities law. Additional information about these assumptions, risks and uncertainties is contained in Sigma's filings with securities regulators, including Sigma's then-current annual information form, which are available on SEDAR at https://www.sedar.com. and on EDGAR at https://www.sec.gov.

Technical disclosure regarding Sigma's properties included in this presentation has not been prepared in accordance with the requirements of U.S. securities laws. Without limiting the foregoing, such technical disclosure uses terms that comply with reporting standards in Canada and estimates are made in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"). Unless otherwise indicated, all mineral reserve and mineral resource estimates contained in the technical disclosure have been prepared in accordance with NI 43-101 and the Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards on Mineral Resources and Reserves (the "CIM Definition Standards").

Under the SEC rules regarding disclosure of technical information, the definitions of "proven mineral reserves" and "probable mineral reserves" are substantially similar to the corresponding CIM Definition Standards, and the SEC recognizes "measured mineral resources", "indicated mineral resources" and "inferred mineral resources" which are also substantially similar to the corresponding CIM Definition Standards. However, there are still differences in the definitions and standards under the SEC rules and the CIM Definition Standards. Therefore, Sigma's mineral resources and reserves as determined in accordance with NI 43-101 may be significantly different than if they had been determined in accordance with the SEC rules.

This presentation includes market, industry, economic data and projections which was obtained from various publicly available sources and other sources believed by Sigma to be true. Although Sigma believes it to be reliable, it has not independently verified any of the data from third party sources referred to in this presentation or analyzed or verified the underlying reports relied upon or referred to by such sources, or ascertained the underlying economic and other assumptions relied upon by such sources. Sigma believes that the market, industry and economic data is accurate and that the estimates and assumptions are reasonable, but there can be no assurance as to the accuracy or completeness thereof. The accuracy and completeness of the market, industry and economic data in this presentation are not guaranteed, and Sigma does not make any representation as to the accuracy or completeness of such information.

Certain technical information in this presentation was derived from the technical report dated March 31, 2025, with an effective date of January 15, 20245 titled "Grota do Cirilo Lithium Project, Araçuaí and Itinga Regions, Minas Gerais, Brazil" and prepared for Sigma Lithium by Marc-Antoine Laporte, P.Geo, SGS Canada Inc., William van Breugel, P.Eng, SGS Canada Inc., Johnny Canosa, P.Eng, SGS Canada Inc., and Joseph Keane, P. Eng., SGS North America Inc. (the "Updated Technical Report"). The Updated Technical Report is available on the SEDAR profile of Sigma at https://www.sedar.com. Mineral resources in the Updated Technical Report are reported inclusive of mineral reserves. Readers are advised that mineral resources that are not mineral reserves do not have demonstrated economic viability. Some figures herein have been rounded for presentation purposes.

Other disclosures in this presentation of a scientific or technical nature at the Grota do Cirilo Project have 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 Director of Geology.

This presentation and the Updated Feasibility Study Report contain certain non-GAAP measures. The non-GAAP measures do not have any standardized meaning within IFRS and therefore may not be comparable to similar measures presented by other companies. These measures provide information that is customary in the mining industry and that is useful in evaluating the Project. This data should not be considered as a substitute for measures of performance prepared in accordance with IFRS.

The Company changed its presentation currency to the U.S. dollar, effective January 1, 2025. As a result, all financial information in this presentation is presented in U.S. dollars, unless otherwise indicated.

Disclaimer

PRODUCTION:

2Q25 Production Volumes Expected to Meet Target

New Crusher Plant Installed with On-site Capacity of 7,500t/day SALES:

Lower Spot Prices May Result in Temporary Inventory Buildup in Q2

Sales Expected to Recover in 3Q-4Q

1Q25 AISC at $620 (below guidance of $660):

Generating Operational Profit

Repaying Some Short-Term Trade Finance Lines

Potential to Secure Subsidized and Longer-Term Trade Finance Lines

FINANCING:

Prepayment Offtakes Without Locking Future Prices

Structured for Long-Term Financing with 3-4 Year Maturities

Increasing Overall Resilience of the Business

1,400

1,200

1,000

800

600

400

200

-

- 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500

Source: Benchmark Minerals, 4Q24 quarterly report

Sigma Lithium Delivered on the Challenge

Achieved Low-Cost Production, Without Sacrificing Sustainability and Ethical Sourcing

Disclaimer

Sigma Lithium Corporation published this content on June 13, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on June 13, 2025 at 00:55 UTC.