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

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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.