Energy Prospectus

America has a large proven resource of LITHIUM in Southern Arkansas.

On Wednesday Robert Mintak, the CEO of Standard Lithium (SLI) will be updating us on their plan to develop the lithium within their 150,000 acres. The Company has recently announced a strategic relationship with Koch Industries.

By leveraging the existing infrastructure and operational expertise of the largest brine processing facilities in North America, Standard Lithium is leading a new wave of U.S. lithium production. Utilizing proprietary advanced processing technologies and strategic partnerships, the company believes new lithium production can be achieved quickly and more cost effectively.

The Company’s flagship project, the 150,000+ acre “Lanxess Project”, is located in the prolific and productive Smackover brine region of southern Arkansas. By securing access to the strategic resource through agreements with the region’s largest commercial brine operator, Standard Lithium plans to leverage the extensive existing infrastructure and permits, to fast-track the projects’ development timelines.

Arkansas produces about 9.4 billion gallons of mineral rich brine annually, according to 2010-16 average statistics reported by the Arkansas Oil & Gas Commission.

Standard Lithium’s patent-pending direct lithium extraction process is the key to unlocking this strategic domestic critical mineral resource. The direct extraction process, known as “LiSTR” has the potential to vastly reduce the recovery time of extracting lithium from brine from as long as a year for conventional evaporation pond processing to just several hours. The process may also prove to be much more environmentally friendly with a significantly smaller footprint - compared to the conventional evaporation pond processes.
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This will be our first luncheon back at the old Hess Club location (now called The Ballroom at Tanglewood).
To attend you must register on the EPG home page.
Guests are welcome to attend. All non-EPG members will be charged $25 for lunch.

The relationship that Standard Lithium now has with Koch Industries is KEY to this investment.

Standard Lithium Awards FEED and DFS Study for First Commercial Lithium Plant in Arkansas to Koch Engineered Solutions Team Led by OPD

EL DORADO, Ark., Sept. 07, 2022 (GLOBE NEWSWIRE) -- Standard Lithium Ltd.
(“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI) (FRA: S5L), an
innovative technology and lithium project development company, provides an update on its
first commercial lithium plant in Arkansas.

Key Highlights:

Front End Engineering Design (FEED) and Definitive Feasibility Study (DFS) for
the first commercial plant awarded to Optimized Process Designs (OPD)

OPD is a Koch Engineered Solutions (KES) business specializing in engineering,
procurement, fabrication and construction of commercial facilities

OPD will be further supported in process engineering by M3 Engineering
Contract award allows for conversion to a lump sum turnkey EPC contract

The Company completed a competitive FEED/DFS selection process and is pleased to
award the contract to OPD LLC, a Koch-owned business based in Katy, Texas. The
FEED/DFS study and subsequent EPC contract are focused on the first commercial lithium
project being developed by Standard Lithium. This project contemplates processing the brine
that is currently being handled by Lanxess at its South Facility, where the Company’s
continuously operating pre-commercial Direct Lithium Extraction (DLE) Demonstration Plant
is located. The existing brine flow at this location is approximately 3,000 US gallons per
minute (usgpm), and using the design criteria of 90% lithium recovery during the DLE
process, results in expected annual production of between 5,000 to 6,000 tonnes per annum
(TPA) of battery quality lithium carbonate. This first project at Lanxess South, designated as
Phase 1A, forms part of a staged development of commercial lithium projects contemplated
by Standard Lithium:

Phase 1A Existing brine flow at Lanxess South Plant (design 5-6,000 TPA lithium carbonate);

Phase 1B Expansion at Lanxess South Plant (expected approximately 5,000 TPA);

Phase 2 Lanxess West Plant (reference SLL Lanxess PEA dated August 6th, 2019);and,

Phase 3 Lanxess Central Plant (reference SLL Lanxess PEA dated August 6th, 2019).

In parallel, Standard Lithium is also contemplating standalone projects;

South West Arkansas Project (current design contemplates 30,000 TPA lithium hydroxide; reference SLL SWA PEA dated November 26th, 2021); and,

Other development projects being investigated by the Company.

OPD have engaged M3 Engineering, based in Tucson, Arizona, which will provide additional
specialist process and chemical engineering expertise in relation to Phase 1A. Other
companies within the Koch Engineered Solutions group will also provide support during the
study.

The FEED study will initially consider various process optimization and trade-off studies,
after which the design of the facility will be advanced sufficiently to support the delivery of a
Definitive Feasibility Study (DFS) and final investment decision (FID) process. At conclusion
of the study it is expected the design will be sufficiently developed to allow conversion of the
FEED study into a lump-sum engineering, procurement and construction (EPC) contract.
The results of the FEED study will be summarized in a NI 43-101 DFS report in H1 2023. < Significant near-term milestone.

Dr. Andy Robinson, President and COO of Standard Lithium commented, “The award of this
FEED study marks a significant milestone for Standard Lithium as it moves the Company
and all our project partners closer to commercialization. Our internal project team went
through a rigorous competitive selection process, and we are delighted to work with OPD
and its partners in KES and M3 Engineering to design our first commercial facility and move
towards an EPC contract and then to construction. The selection process and study award
are further examples of Standard Lithium’s commitment to disciplined and responsible
project development. Commercial discussions with Lanxess that will support the construction
and operation of the first commercial plant are ongoing, as are all supporting studies such as
permitting, geotechnical investigations and engineering integration with Lanxess’ existing
infrastructure.”

Brian Boster, President of Optimized Process Designs, added,"OPD is excited to be moving
forward with the Standard Lithium team on this world class project. Our successful project
execution strategies and turn-key approach to engineering, procurement, and construction
will add significant value to the project. As part of KES, we are well positioned to provide a
full range of support as we work closely with Standard Lithium and M3 through FEED and
project execution.”

About Standard Lithium Ltd.

Standard Lithium 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 operates its first-of-a-kind industrial-scale Direct
Lithium Extraction (DLE) demonstration plant at Lanxess’s south plant facility in southern
Arkansas. The demonstration plant utilizes the Company’s proprietary LiSTR technology to
selectively extract lithium from Lanxess’s tail brine. 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
southwest Arkansas, referred to as the South West Arkansas Lithium Project, and
approximately 45,000 acres of mineral leases located in the Mojave Desert in San
Bernardino County, California.

Standard Lithium is jointly listed on the TSX Venture Exchange and the NYSE American
under the trading symbol “SLI”; and on the Frankfurt Stock Exchange under the symbol
“S5L”. Please visit the Company’s website at https://www.standardlithium.com.

About Optimized Process Designs
Optimized Process Designs (OPD) provides clients with detailed engineering packages in all
disciplines, single point procurement for all equipment and materials, fabrication and direct-
hired construction services at project locations throughout the United States. With a long
history of successfully completing projects on a lump-sum, turn-key contract basis, their
customers value their ability to provide shortened project cycles through streamlined
execution plans. For more information about OPD, please visit www.opdepc.com.

About Koch Engineered Solutions
Koch Engineered Solutions (KES) delivers superior value in developing, integrating and
applying innovative technical and service solutions for industrial value chains. KES offers
uniquely engineered solutions in construction; mass and heat transfer; combustion and
emissions controls; filtration; separation; materials applications; automation and actuation.
Based in Wichita, Kansas, KES is a subsidiary of Koch Industries, one of the largest private
companies in the world. More information is available at KochEngineeredSolutions.com