Standard Lithium Installs Commercial DLE Column at Demonstration Plant

Further Derisks DLE Process With Testing Planned Using Full-Scale Commercial Equipment Over the Next 6 Months

EL DORADO, Ark., March 13, 2024 (GLOBE NEWSWIRE) -- Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium development company, is pleased to announce that it has successfully installed a commercial-scale Direct Lithium Extraction (“DLE”) column at its Demonstration Plant near El Dorado, Arkansas. The column is a LiPRO Lithium Selective Sorption (“LSS”) unit, supplied by Koch Technology Solutions, LLC (“KTS”).

The column has been installed and integrated with the Company’s existing Demonstration Plant to test and derisk the design for commercial applications of the LiPRO LSS technology. It is the same size and design as those that the Company intends to use (in multiple trains) in its commercial applications for the Phase 1A and South West Arkansas projects (as described in the Company’s recent Definitive Feasibility Study for the Phase 1A project and Preliminary Feasibility Study for the South West Arkansas project).

The commercial-scale LiPRO LSS column is currently being filled with Koch Engineered Solutions proprietary lithium-selective sorption with commissioning expected later this month. Extensive performance testing of the commercial-scale DLE technology will be performed over the following months under the supervision of Standard Lithium and KTS technical specialists.

Standard Lithium’s Director, President & COO, Dr. Andy Robinson commented, “this is an important derisking milestone for Standard Lithium and our partners. Our team has been successfully running the LiPRO LSS technology since October 2022, and we have already successfully completed scale-ups of the DLE equipment at the Demonstration Plant; this is our final stage of derisking the technology. The data gathered from this commercial-scale unit will provide crucial validation and derisking information for our ongoing project finance processes, as well as FEED and DFS studies for the South West Arkansas Project (see news release dated 24 January 2024). We’re very grateful for our partners Koch Technology Solutions and LANXESS who have helped to make this final derisking step possible.”