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SLI.V ·

Standard Lithium Ltd. Named to 2021 OTCQX Best 50

Marketing Announcement

STANDARD LITHIUM LTD. NAMED TO 2021 OTCQX BEST 50

Vancouver, BC –February 3th, 2021 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”)

(TSXV: SLL) (OTCQX: STLHF) (FRA: S5L), an innovative technology and lithium project development

company, is pleased to announce that it has been named to the 2021 OTCQX Best 50, a ranking of the

top performing companies on the OTCQX in the prior calendar year.

The OTCQX Best 50 is an annual ranking of the top 50 U.S. and international companies traded on the

OTCQX market. The ranking is calculated based on an equal weighting of one-year total return and

average daily dollar volume growth in the previous calendar year. Companies in the 2021 OTCQX Best

50 were ranked based on their performance in 2020.

Standard Lithium’s CEO Robert Mintak states,” On behalf of the senior management and Board, I would

like to thank our shareholders for their continued support and a big shout-out to the entire Standard

Lithium team who have effectively managed to work and deliver significant project milestones during this

truly unprecedented year.”

For the complete 2021 OTCQX Best 50 ranking, visit

https://www.otcmarkets.com/files/2021_OTCQX_Best_50.pdf.

About Standard Lithium Ltd.

Standard Lithium (TSXV: SLL) is an innovative technology and lithium development company. The

company’s flagship project is located in southern Arkansas, where it is engaged in the testing and proving

of the commercial viability of lithium extraction from over 150,000 acres of permitted brine operations.

The Company has commissioned its first-of-a-kind industrial scale Direct Lithium Extraction

Demonstration Plant at LANXESS’ South Plant facility in southern Arkansas. The Demonstration Plant

utilizes the Company’s proprietary LiSTR technology to selectively extract lithium from LANXESS’

tailbrine. The Demonstration Plant is being used for proof-of-concept and commercial feasibility studies.

The scalable, environmentally-friendly process eliminates the use of evaporation ponds, reduces

processing time from months to hours and greatly increases the effective recovery of lithium. The

company is also pursuing the resource development of over 30,000 acres of separate brine leases

located in southwestern Arkansas and approximately 45,000 acres of mineral leases located in the

Mojave Desert in San Bernardino County, California.

Standard Lithium is listed on the TSX Venture Exchange under the trading symbol “SLL”; quoted on the

OTC - Nasdaq Intl Designation under the symbol “STLHF”; and on the Frankfurt Stock Exchange under

the symbol “S5L”. Please visit the Company’s website at www.standardlithium.com

On behalf of the Board of Standard Lithium Ltd.

Robert Mintak, CEO & Director

For further information, contact Anthony Alvaro at (604) 240 4793

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of

the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

This news release may contain certain “Forward-Looking Statements” within the meaning of the United

States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws. When

used in this news release, the words “anticipate”, “believe”, “estimate”, “expect”, “target, “plan”, “forecast”,

“may”, “schedule” and other similar words or expressions identify forward-looking statements or

information. These forward-looking statements or information may relate to information regarding the

requisite regulatory approvals, anticipated development of the Company’s projects and assets,

completion of the Offering, including the number of Shares issued pursuant thereto, anticipated use of the

net proceeds of the Offering, future prices of commodities, accuracy of mineral or resource exploration

activity, reserves or resources, regulatory or government requirements or approvals, the reliability of third

party information, continued access to mineral properties or infrastructure, fluctuations in the market for

lithium and its derivatives, changes in exploration costs and government regulation in Canada and the

United States, and other factors or information. The forward-looking statements contained in this news

release are based on certain key expectations and assumptions made by the Company, including

expectations and assumptions regarding the terms, timing, size and potential completion of the Offering,

satisfaction of regulatory requirements in various jurisdictions, and the anticipated use of the net proceeds

of the Offering. Such statements represent the Company’s current views with respect to future events and

are necessarily based upon a number of assumptions and estimates that, while considered reasonable by

the Company, are inherently subject to significant business, economic, competitive, political and social

risks, contingencies and uncertainties. Forward-looking statements involve risks, uncertainties and other

factors disclosed under the heading “Risk Factors” and elsewhere in the Company’s filings with Canadian

securities regulators. Many factors, both known and unknown, could cause results, performance or

achievements to be materially different from the results, performance or achievements that are or may be

expressed or implied by such forward-looking statements. The Company does not intend, and does not

assume any obligation, to update these forward-looking statements or information to reflect changes in

assumptions or changes in circumstances or any other events affections such statements and information

other than as required by applicable laws, rules and regulations.