Standard Lithium Ltd.: Standard Lithium Commences Resource Definition in Southern Arkansas

VANCOUVER, British Columbia, 2018-01-30 12:30 CET (GLOBE NEWSWIRE) --
Standard Lithium Ltd. ("Standard Lithium" or the "Company") (TSX-V:SLL)
(OTCQX:STLHF) (FRA:S5L) is pleased to announce that the Company has commenced
detailed resource definition work at its recently optioned 33,000 acres of
brine leases, located in a highly prospective area of the Smackover Formation
in Southern Arkansas, USA.  This work integrates collection of new data from
current well infrastructure, with a large amount of already-available, high
quality, geological, geophysical and geochemical data. 

The lease area has been historically drilled for oil and gas exploration, and
approximately 256 exploration and production wells have been completed in the
Smackover Formation in or immediately adjacent to Standard's new lease area
(almost 3,000 wells have been drilled in southern Arkansas and provide
excellent data to support interpretation in Standard's lease zone).  All of
these 256 wells have geological logs, and all can be used to constrain the top
of the Smackover Formation's brine-bearing zone.  In addition, a sub-set of 30
wells has full core reports that provide detailed data, and downhole
geophysical logs that include formation resistivity and porosity data.  A
further sub-set of 15 wells also has full core samples available from the
Smackover Formation, these cores (available from the Arkansas Geological Survey
core library) can be sent for additional laboratory testing to further refine
porosity estimates for the Smackover resource zone in Standard's lease area. 

In addition, Standard Lithium has retained Shreveport, Louisiana based Hill
Geophysical Consulting to provide key geological interpretation of the lease
area.  The Principal, Kevin Hill, has several decades of experience gathering
and interpreting geophysical data from the Southern Arkansas area, and has been
instrumental in identifying structures, lithological/porosity variations and
new resource zones in the Smackover Formation throughout Standard's area of
interest.  Of key importance is that Hill Geophysical have licensed access to
over 320 km (200 miles) of high resolution 2D-seismic line data that have been
collected in Standard Lithium's new lease area, and these lines fully image the
total thickness of the Smackover Formation and fine-scale structures and
lithology variations that are present therein.  Hill Geophysical Consulting is
in the process of integrating the 256 well logs from the lease area into the
2D-seismic data, and is working towards producing a 3D-block model of the
Smackover Formation underlying Standard's leases. 

Standard is also in advanced discussions with oil and gas producers with open,
unused Smackover wells in and immediately adjacent to the new lease area to
gather new, high quality lithium brine samples from the key brine production
zones in the Smackover Formation.  The new samples will supplement the
extensive historical geochemical brine data available from the area of
interest. 

President and Chief Operating Officer, Dr. Andy Robinson commented, "One of the
reasons that the Company aggressively pursued this lease package in the
Smackover Formation was because we knew that not only was there was a wealth of
high quality data already available to define the resource, but also several
key professionals who could help us integrate and interpret those data.  We're
now at the point where we can very quickly work through the resource assessment
process and identify where we need to collect any additional data to ensure a
robust and comprehensive understanding of the lithium brine resource potential.
 Execution of this very fast resource assessment process is part of Standard's
corporate strategy to move large potential resources as quickly towards
production as we can." 

Quality Assurance

Raymond Spanjers, Certified Professional Geologist (SME No. 3041730), is a
qualified person as defined by NI 43-101, and has supervised the preparation of
the scientific and technical information that forms the basis for this news
release.  Mr. Spanjers is not independent of the Company as he is an officer in
his role as Vice President, Exploration and Development. 

About Standard Lithium Ltd.

Standard's value creation strategy encompasses acquiring a diverse and highly
prospective portfolio of large-scale domestic brine resources, led by an
innovative and results-oriented management team with a strong focus on
technical skills.  The Company is currently focused on the immediate
exploration and development of the Bristol Dry Lake Lithium Project located in
the Mojave region of San Bernardino County, California; the location has
significant infrastructure in-place, with easy road and rail access, abundant
electricity and water sources, and is already permitted for extensive brine
extraction and processing activities.  The Company is also commencing resource
evaluation on up to 33,000 acres of brine leases located in the Smackover
Formation. 

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 at
www.standardlithium.com. 

For further information, contact Anthony Alvaro at [phone]

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.