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SLI.V ·

Standard Lithium Commissions Saltworks FOR Design & Build of Selective Crystallisation Portion of Its Pilot Plant

Metallurgy & Processing

STANDARD LITHIUM LTD.

Suite 835, 1100 Melville Street

Vancouver, British Columbia

V6E 4A6

NEWS RELEASE

STANDARD LITHIUM COMMISSIONS SALTWORKS FOR DESIGN & BUILD OF

SELECTIVE CRYSTALLISATION PORTION OF ITS PILOT PLANT

June 06, 2018 – Vancouver, BC – Standard Lithium Ltd.(“Standard Lithium” or the “Company”)

(TSXV: SLL) (FRA: S5L) is pleased to announce that it has commissioned Saltworks Technologies

Inc. (“Saltworks”) to design and build a novel, selective crystallisation plant to make battery-grade

lithium carbonate in a continuous process. The feedstock to the crystallisation plant will be the high-

purity lithium solution produced by the full-scale Selective Extraction Pilot Plant previously

announced by the Company on 26 th March 2018. The crystallisation plant will be intelligently

automated and will utilise machine-learning to optimise the crystallisation conditions. The selective

crystallisation plant will be designed, built and tested in Vancouver, BC, and will then be deployed at

the Company’s Pilot Plant location in El Dorado, Arkansas. This novel, continuous selective

crystallisation plant is based on work conducted by Professor Jason Hein, a member of Standard

Lithium’s Technical Advisory Committee, that has been demonstrated at bench scale to result in

reproducible and high purity lithium carbonate crystallisation.

Dr. Andy Robinson, COO and President of Standard Lithium commented "We’re extremely pleased to

announce this agreement with Saltworks; we’ve been very impressed with the quality and technical

sophistication of their team and the products that they design and manufacture. Standard Lithium is

taking a parallel and risk-managed approach at our Pilot-scale facility with respect to our final

crystallisation stage; our intention is to ‘future proof’ our final production options. In addition to our

in-house technology testing, we will be sending high-purity lithium solutions to OEMs in order that

they can use traditional, proven technologies to demonstrate production of lithium carbonate and

hydroxide; however, we also wish to test whether modern approaches can provide a more efficient

solution to making very high purity lithium carbonate.”

Saltworks CEO Benjamin Sparrow commented that, “Lithium mining is water mining. Our team is

very excited to provide Standard Lithium with an advanced water technology edge, leveraging our

experience while working with their world class team.”

About Standard Lithium

Standard’s value creation strategy encompasses acquiring a diverse and highly prospective portfolio of

large-scale brownfield domestic brine resources, led by an innovative and results-oriented management

team with a strong focus on technical skills and modern brine processing technologies. The

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

commercial viability of lithium extraction from 150,000+ acres of permitted brine operations and also

the resource development of 30,000+ acres of separate brine leases, both located in the Smackover

Formation. It is also engaged in the exploration and resource development of approximately 45,000

acres at the Bristol and Cadiz Dry Lake Lithium Projects located in the Mojave Desert, San Bernardino

County, California. All of Standard Lithium’s Project areas have significant infrastructure in-place,

with easy road and rail access, abundant electricity and water sources, and already permitted brine

extraction and processing operations.

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

OTCQX under the symbol “STLHF”; and on the Frankfurt Stock Exchange under the symbol “S5L”.

Please visit the Company’s website atwww.standardlithium.com.

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

About Saltworks Technologies

Saltworks Technologies treats the toughest water. Saltworks delivers intelligent industrial desalination

and zero liquid discharge (ZLD) water treatment plants. We reliably separate out the salt, so customers

can focus on their core business (www.saltworkstech.com).

For further information, contact Adrian Ebsary at (604) 628 6508 x210.

On behalf of the Board,

Standard Lithium Ltd.

Robert Mintak, CEO & Director

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 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 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. 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. 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.

Readers are cautioned that a “Qualified Person” (as that term is defined by National Instrument 43-

101 – Standards of Disclosure for Mineral Projects) has not done sufficient work to specify any

mineral resource or reserve on the Properties.