Standard Lithium (SLI) Corporate presentation summary

Strategic vision and positioning

• Aims to become a leading low-cost, sustainable U.S. lithium producer with near-term commercial-scale production using innovative technologies in Arkansas and Texas.

• Focuses on building projects with global partners in regions with strong stakeholder and regulatory support.

• Four-pillar strategy: secure top resources, unlock with proven technology, de-risk with partnerships, and align with key offtake partners.

Project portfolio and resource highlights

• South West Arkansas (SWA) Project targets first commercial production in 2029 with initial capacity of 22,500 tpa lithium carbonate and a 20+ year operating life.

• East Texas (Franklin Project) holds a maiden inferred resource of 2.2Mt LCE, with average lithium concentration of 668 mg/L and potential for 100,000+ tpa LCE production across three projects.

• Smackover Formation offers some of the highest lithium brine concentrations in North America, with extensive infrastructure and geological data.

Technology and operational de-risking

• Commercial-scale demonstration plant has processed 40 million gallons of brine since 2020, achieving >95% lithium recovery and >99% contaminant rejection.

• Aquatech’s Lithium Selective Sorption (LSS) technology is regionally exclusive and underpins the SWA Project, with performance guarantees for recovery and purity.

• Successful field test at SWA exceeded key criteria, supporting engineering design and definitive feasibility study (DFS).