Mr. David Park reports

STANDARD LITHIUM, EQUINOR ANNOUNCE SMACKOVER LITHIUM AS NEW JOINT VENTURE NAME

Standard Lithium Ltd. and Equinor have chosen Smackover Lithium as the new name for their joint venture developing direct lithium extraction (DLE) projects in southwest Arkansas and east Texas.

Smackover Lithium was announced yesterday at a community meeting in Lewisville, Ark., home of a planned field office and nearby the joint venture's South West Arkansas (SWA) project. The SWA project, located in Lafayette and Columbia counties, is expected to be one of the world's first commercial-scale DLE facilities.

"Smackover Lithium is a natural fit for the joint venture given the Smackover formation's prolific resource and our joint venture's commitment to adding to the incredible legacy of American energy production from this region," said David Park, chief executive officer of Standard Lithium.

In May, 2024, Equinor formed a joint venture with Standard Lithium to advance DLE projects in the Smackover basin, focused on southwest Arkansas and east Texas. Smackover Lithium is now the external brand for the joint venture and will continue building on Standard Lithium's work with local communities to enhance economic development and grow educational and work force opportunities.

"We are excited to be a part of Smackover Lithium, developing critical mineral projects in the Smackover basin and building the next generation of lithium development," said Allie Kennedy Thurmond, vice-president of United States lithium at Equinor.

About Standard Lithium Ltd.

Standard Lithium is a leading near-commercial lithium development company focused on the sustainable development of a portfolio of large, high-grade lithium-brine properties in the United States. The company prioritizes projects characterized by the highest-quality resources, robust infrastructure, skilled labour and streamlined permitting. Standard Lithium aims to achieve sustainable, commercial-scale lithium production via the application of a scalable and fully integrated DLE and purification process. The company's flagship projects are located in the Smackover formation, a world-class lithium brine asset, focused in Arkansas and Texas. In partnership with global energy leader Equinor, Standard Lithium is advancing the SWA project, a greenfield project located in southern Arkansas, and actively exploring promising lithium brine prospects in east Texas. Additionally, the company is advancing the phase 1A project in partnership with Lanxess Corp., a brownfield development project located in southern Arkansas. Standard Lithium also holds an interest in certain mineral leases in the Mojave Desert in San Bernardino county, California.

Standard Lithium trades on both the TSX Venture Exchange and the NYSE American under the symbol SLI; and on the Frankfurt Stock Exchange under the symbol S5L.

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