Standard Lithium (SLI) Investor presentation summary

Strategic vision and project overview

• Aims to become a leading low-cost, sustainable U.S. lithium producer with near-term commercial-scale production in Arkansas and Texas, leveraging innovative direct lithium extraction (DLE) technology and strong partnerships.

• Focuses on projects in regions with established infrastructure, skilled workforce, and regulatory support, targeting first commercial production in 2029.

• Partnerships with Equinor and Aquatech provide technical, operational, and financial expertise, with regional exclusivity for Aquatech’s DLE technology in the Smackover Formation.

Project assets and resource highlights

• South West Arkansas (SWA) Project: 22,500 tpa lithium carbonate capacity, 20+ year modeled life, average grade 481 mg/L, $1.7bn pre-tax NPV, and $1.45B CAPEX.

• East Texas/Franklin Project: Maiden inferred resource of 2.2Mt LCE, average grade 668 mg/L, with potential for 100,000+ tpa LCE production across three projects.

• Smackover Formation is one of North America’s highest-grade lithium brine resources, with extensive infrastructure and over a century of energy operations.

Technology and operational de-risking

• Demonstration plant operating since 2020, processing 42 million gallons of brine and achieving >95% lithium recovery and >99% contaminant rejection.

• Field test at SWA Project confirmed engineering design, with over 99% lithium recovery and successful production of battery-quality lithium carbonate.

• License agreement with Aquatech includes technology performance guarantees and regional exclusivity.