Mr. David Park reports

SMACKOVER LITHIUM'S SOUTH WEST ARKANSAS PROJECT RECEIVES SPECIAL DESIGNATION AS A PRIORITY TRANSPARENCY CRITICAL MINERAL PROJECT FROM THE TRUMP ADMINISTRATION

The South West Arkansas project of Smackover Lithium, a joint venture between Standard Lithium Ltd. and Equinor, has been selected as one of the first critical mineral production projects to be advanced under executive order 14241, Immediate Measures to Increase American Mineral Production, issued on March 20, 2025, by President Trump. This prestigious designation, announced by the Federal Permitting Improvement Steering Council at the recommendation of the National Energy Dominance Council, underscores the project's strategic importance to national security, economic prosperity and energy independence.

The SWA project, a cornerstone of Smackover Lithium's mission to bolster domestic lithium production, has been included on the federal permitting dashboard as a transparency project. This designation ensures increased transparency, accountability and predictability in the permitting review process, aligning with President Trump's directive to expedite domestic critical mineral projects. The support from the White House signals strong federal backing for the project, reinforcing its role in reducing U.S. reliance on China. The SWA project is one of only three domestic lithium projects and the sole direct lithium extraction initiative to be included on the initial selected projects list. Additionally, it is the first project supported by the DOE's Office of Manufacturing and Energy Supply Chains to be accepted into the transparency program.

"We are honoured by the Trump administration's recognition of the SWA project as a priority project for American mineral production," said Standard Lithium's chief executive officer, David Park. "This designation is a testament to the project's economic viability and potential to strengthen national security, create high-quality jobs, and fuel economic growth in Arkansas and beyond. The streamlined permitting process, combined with federal support, reinforces our project development timeline and positions us well to deliver a low-cost, sustainable and domestic source of lithium critical to advanced energy technologies."

Smackover Lithium remains committed to environmentally responsible development, community engagement and innovation as it advances the SWA project. The JV looks forward to collaborating with federal, state and local stakeholders to ensure the project's success and to contribute to America's leadership in the critical mineral sector.

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 through the application of a scalable and fully integrated direct lithium extraction and purification process. The company's flagship projects are located in the Smackover formation, a world-class lithium brine asset, focused on Arkansas and Texas. In partnership with global energy leader Equinor, Standard Lithium is advancing the South West Arkansas project, a greenfield project located in southern Arkansas, and actively exploring promising lithium brine prospects in east Texas. 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.

About Equinor

Equinor is an international energy company committed to long-term value creation in a low-carbon future. Equinor's portfolio of projects encompasses oil and gas, renewable, and low-carbon solutions, with an ambition of becoming a net-zero energy company by 2050. Headquartered in Norway, Equinor is the leading operator on the Norwegian continental shelf and is present in around 30 countries worldwide. Its partnership with Standard Lithium to mature DLE projects builds on its broad U.S. energy portfolio of oil and gas, offshore wind, low carbon solutions, and battery storage projects.

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