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Sigma Lithium Participates in Industry Panel at the UBS Disruptive Business Day, in Sao Paulo, Brazil

Marketing Announcement

Sigma Lithium Participates in Industry Panel at the

UBS Disruptive Business Day, in Sao Paulo, Brazil

VANCOUVER, CANADA -- (November 9, 2018) - Sigma Lithium Resources Corporation ("Sigma" or the

"Company") (TSX-V: SGMA), a developer of a hard rock lithium deposit at its Grota do Cirilo property in Brazil,

announced today the participation of Ana Cabral-Gardner, Vice-Chairman, and Jose Fernando Iasbech, Director of

Institutional Relations, in a corporate presentation at the "UBS Disruptive Business Day", focusing on the development

of the battery value chain globally and in Brazil held today, November 9, 2018, in São Paulo, Brazil. Other corporations

presenting at the event included AES and CPFL Energia, leading participants in the power industry in Brazil.

About Sigma Lithium Resources Corporation

Sigma commissioned its Phase I production plant and has commenced the production of battery grade spodumene

concentrate from its high-quality deposits. Sigma is developing a lithium hard rock deposit with exceptional mineralogy

at its Grota do Cirilo property in Brazil. Our output of lithium minerals is destined for the fast-growing lithium-ion battery

market, which is driven by the increasing demand for electric vehicles and energy storage worldwide.

Sigma’s corporate mission is to execute its strategy while embracing environmental, social, and governance principles.

We are on track to become a high quality spodumene concentrate supplier to the lithium battery industry worldwide.

Sigma plans to commence construction of a commercial-scale lithium concentration plant in March 2019. Sigma

shareholders include some of the largest ESG (environmental, sustainability, governance) focused institutional investors

in the world.

For additional information please contact:

Sigma Lithium Resources Corporation / www.sigmalithiumresources.com

Company Contact:

Ana Cabral

Vice – Chairman

Director of Business Development and Investor Relations

55 11 2985-0089

[email protected]

Investor Contact:

KCSA Strategic Communications

Valter Pinto / Scott Eckstein

(212) 896-1254

[email protected]

FORWARD-LOOKING STATEMENTS

This news release contains forward-looking statements relating to the objectives of the Company, the potential for

increased resources, concentration plant construction and expected production levels, achieving sustainable production

and other statements that are not historical facts. Readers are cautioned not to place undue reliance on forward-looking

statements, as there can be no assurance that the plans, intentions or expectations upon which they are based will occur.

By their nature, forward-looking statements involve numerous assumptions, known and unknown risks and uncertainties,

both general and specific, that contribute to the possibility that the predictions, forecasts, projections and other forward-

looking statements will not occur, which may cause actual performance and results in future periods to differ materially

from any estimates or projections of future performance or results expressed or implied by such forward-looking

statements. These assumptions, risks and uncertainties include, among other things: the state of the economy in general

and capital markets in particular, and investor interest in the business and future prospects of Sigma.

The forward-looking statements contained in this news release are made as of the date of this news release. Except as

required by law, Sigma disclaims any intention and assumes no obligation to update or revise any forward-looking

statements, whether as a result of new information, future events or otherwise, except as required by applicable

securities law. Additionally, Sigma undertakes no obligation to comment on the expectations of, or statements made, by

third parties in respect of the matters discussed above.

The key risks and uncertainties that could cause actual results or the material factors and assumptions applied in

preparing forward-looking information to differ materially from predictions, forecasts, projections, expectations or

conclusions are discussed in the “Risk Factors” section of Sigma’s Filing Statement dated April 25, 2018. We caution that

the foregoing list is not exhaustive of all possible factors.

For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from

current expectations, please refer to our public filings available 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.