Slide 1: The Future of Lithium in North America
NYSE : SLI | TSX.V : SLI The Future of Lithium in North America Creating a Sustainable U.S. Lithium Business August 2025 www.standardlithium.com
Slide 2: Cautionary Statement
Cautionary Statement This presentation and the information contained herein or provided orally in connection herewith is provided for the exclusive use of the recipients and may not be reproduced, provided or disclosed to others, or used for any other purpose, without the written authorization of St
Slide 3: Cautionary Statement (continued)
Cautionary Statement (continued) Forward-looking information involves known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or im
Slide 4: Standard Lithium is on the path to becoming a leading low-cost sustainable American lithium producer
Standard Lithium is on the path to becoming a leading We aim to achieve attractive low-cost sustainable near-term commercial-scale American lithium producer production by applying innovative technologies to our Building projects with our world class assets in Arkansas global partners in a region and
Slide 5: Investment Highlights
Investment Highlights Premier Lithium Smackover is North America's highest grade lithium brine – Brine Resource in concentrations up to 616 mg/L in Arkansas1 and up to 806 mg/L in East Texas2 North America High grade resource, proven commercial-scale technology and Advantaged Cost infrastructure dri
Slide 6: Brine to Battery – A Clear Path
Brine to Battery – A Clear Path UNLOCK THE DEVELOP SECURE THE EXECUTION RESOURCE WITH DE-RISK THE PROJECTS BEST OF BEST PROJECTS WITH RIGHT RESOURCE STRATEGY TECHNOLOGY PARTNERS Entered Smackover - Signed Joint Commenced Strategic partnership Targeting 2028 for highest lithium brine Development oper
Slide 7: Our Strategic Approach
Our Strategic Approach Standard Lithium is positioning itself to achieve highly value-accretive, globally significant production scale, in a sustainable and responsible manner Partnerships & Market Resource & Location Phased Development Capitalization Fundamentals ▪ Recent drilling results in the ▪
Slide 8: Smackover: A World Class Lithium Brine Asset
Smackover: A World Class Lithium Brine Asset Smackover Formation is a high-quality lithium brine resource ▪ Elevated lithium concentrations are some of the highest recorded outside of Lithium Triangle in South America ▪ In Arkansas, 8+ billion gallons of brine extracted, processed and reinjected ann
Slide 9: Strategically Located for Domestic Market
Strategically Located for Domestic Market U.S. needs significant supply growth to meet forecasted lithium demand 1 2 3 4 5 6 ▪ Advantaged location gives SLI a sustainable U . S . B AT T E R Y M A N U FA C T U R E R S Current and in Development competitive edge to be a key supplier to emerging 7 ener
Slide 10: Projects Overview
Projects Overview East Texas Projects (Exploration) South West Arkansas Project (Development) Demonstration SOUTH WEST ARKANSAS PROJECT EAST TEXAS PROJECTS Plant7 Ownership: Ownership: 55% Standard Lithium1 55% Standard Lithium1 Key Feature: Key Feature: Average concentration of 437 mg/L Average con
Slide 11: High Grades Drive Compelling Economics
High Grades Drive Compelling Economics The Smackover Formation’s high lithium concentration drives low-cost estimates – Standard Lithium anticipates its projects to rank among first quartile on global lithium cost curve 700 $20,000 $18,000 600 $16,000 500 Lithium Concentrations (mg/L) $14,000 $12,00
Slide 12: Capital Formation “Pyramid”
Capital Formation “Pyramid” Standard Lithium is committed to maximizing shareholder returns through a strategic and methodical approach to capital formation Leveraging strategic partnerships to maximize project success ▪ Standard Lithium has secured investments from Koch Industries and Equinor ▪ Ind
Slide 13: Strong Federal Support for SWA Project
Strong Federal Support for SWA Project Backing from Department of Energy and Executive Office’s National Energy Dominance Council reinforces SWA Project importance and development timeline LITHIUM CONCENTRATION RANGE1 KEY HIGHLIGHTS ▪ SWA Lithium LLC is recipient of $225 million grant from the DOE t
Slide 14: Strategic Partnerships: More than Capital
Strategic Partnerships: More than Capital Refining and Direct Lithium Extraction From Brine to Battery Grade Lithium – Leveraging Strategic Partnerships ▪ Utilizing Koch’s proprietary Lithium Selective Sorption (LSS) process across the Smackover ▪ Standard Lithium has regional exclusivity in the Sma
Slide 15: Successful Field-Test Completes DLE De-risking
Successful Field-Test Completes DLE De-risking Smackover Lithium successfully completed the de-risking of its DLE technology with a field-test at its South West Arkansas Project ▪ Field-pilot DLE facility exceeded key performance criteria to confirm engineering design – recovered over 99% of lithium
Slide 16: Proven Technology at Commercial-Scale
Proven Technology at Commercial-Scale ▪ In March 2024, Standard Lithium successfully installed and commissioned the Li-Pro TM Lithium Selective Sorption (LSS) commercial scale unit supplied by KTS ▪ This unit is believed to be the largest known commercial-scale column operating in a DLE facility ▪ O
Slide 17: Large Demonstration Plant in Operation Since 2020
Large Demonstration Plant in Operation Since 2020 17
Slide 18: Capitalization & Liquidity
Capitalization & Liquidity Financial Highlights Liquidity & Capitalization 1 (USD millions) Cash $33.8 ▪ Positive working capital with no revolving or term debt obligations as of June 30, 2025 ▪ Closed a $225 million grant from the DOE3, one of the largest ever awarded to a U.S. critical minerals pr
Slide 19: Appendix
NYSE : SLI | TSX.V : SLI Appendix August 2025 www.standardlithium.com
Slide 20: Compelling Market Fundamentals
Compelling Market Fundamentals A looming global supply gap, and a substantial market deficit in North America driven by U.S. policy demands, presents a compelling opportunity for new projects Global Supply Demand Balance Regional Supply Demand Balance 8,000,000 1,600,000 7,000,000 1,400,000 6,000,00
Slide 21: Koch | Experts in Mineral Processing
Koch | Experts in Mineral Processing Koch Industries brings significant expertise and Second-largest privately held company in America, with over 80 years of experience throughout the energy chain experience in energy and chemicals ▪ Founded as an engineering and refining company, the Koch family of
Slide 22: Equinor | International Pioneers in the Energy Transition
Equinor | International Pioneers in the Energy Transition Equinor is a leading multinational energy company with operations across 36 countries Equinor are energy experts and world-leaders in renewable and low carbon solutions ▪ Historically focused on oil & gas, Equinor has expanded its presence in
Slide 23: South West Arkansas (SWA) Project
South West Arkansas (SWA) Project1 STATUS: Front-End Engineering Design (FEED) The SWA Project with ▪ Lithium avg. grade of 437 mg/L (max of 616 mg/L)2; ▪ Planned annual output of 45,000 tonnes lithium carbonate; ▪ Existing project and regional infrastructure; ▪ Strong local workforce; ▪ Friendly re
Slide 24: SWA - Pathway to Final Investment Decision
SWA - Pathway to Final Investment Decision Key Milestones at South West Arkansas Customer Project Royalty FEED & DFS Offtake Finance Received royalty rate Flowsheet has been finalized Advisor has been selected to Advisor has been selected to approval from the Arkansas & DLE technology de-risked lead
Slide 25: East Texas Greenfield Exploration
East Texas Greenfield Exploration Standard Lithium has secured a significant brine lease position, drilled and sampled lithium brine showing significant potential to develop a resource Opportunity to develop 644 mg/L 806 mg/L large-scale, industry- leading lithium projects Average Lithium Highest Li
Slide 26: East Texas Greenfield Exploration
East Texas Greenfield Exploration Targeting locations with optimal brine grades to secure a foothold for large-scale production LITHIUM CONCENTRATION RANGE1 298 - 806 mg/L STATUS: Resource Definition ▪ Team of Smackover specialists have been working for the past 4 years to identify the most prospect
Slide 27: Leading a new era of responsible lithium production in America
Vancouver Arkansas Texas Head Office Office Office Leading a new era of responsible 1075 West Georgia - 116B E. Elm Street 3600 N. Capital of lithium production in America Suite 1625 El Dorado, TX Hwy, Bldg. B, Ste. 230 Vancouver, BC, Arkansas, USA Canada Austin, TX, USA 71730 V6E 3C9 78746 NYSE : S