Corporate Overview TSX-V: SLL OTCQX: STLHF JULY 2020 XETRA: S5L - PowerPoint PPT Presentation

Corporate Overview TSX-V: SLL OTCQX: STLHF JULY 2020 XETRA: S5L

DISCLAIMER The Presentation is intended for educational and informational purposes only and does not replace independent professional judgment. Statements of fact and opinions expressed are those of the participants individually. The information is not designed to provide financial, tax planning, accounting, investment, business or legal advice, in any way whatsoever. The reader should consult with a lawyer, accountant and other professionals in respect of contents hereof. Furthermore, the information in no way should be construed or interpreted as, or as a part of, an offering or solicitation of securities. Investors are advised to discuss any trading with a registered securities broker or personal finance professional prior to investing. This Presentation includes and is based on forward-looking information and statements that are subject to risks and uncertainties that could cause actual results to differ. Factors that might cause or contribute to such differences include, but are not limited to, economic conditions globally, the impact of competition, political and economic developments in the countries and states in which the Company operates, regulatory developments domestically and internationally and changes in lithium prices and in the margins for the Company’s products. These expectations, estimates and projections are generally identifiable by statements containing words such as "expects", "anticipates", "targets", "goals", "projects", "intends", "plans", "believes", "seeks", "estimates", variations of such words, and similar expressions. Important factors that could cause actual results to differ materially from those expectations include, among others, economic and market conditions in the geographic areas and industries that are or will be major markets for the Company’s businesses, lithium prices, market acceptance of new products and services, changes in governmental regulations, interest rates, fluctuations in currency exchange rates and such other factors as may be discussed from time to time. Although the Company believes that its expectations and the information in this Presentation were based upon reasonable assumptions at the time when they were made, it can give no assurance that those expectations will be achieved or that the actual results will be as set out in this Presentation. The Company is not making any representation or warranty, expressed or implied, as to the accuracy, reliability or completeness of the information in the Presentation, and neither the Company nor any of its directors, officers or employees will have any liability to the reader or any other persons resulting from the reader's use of the information in the Presentation. The Company undertakes no obligation to publicly update or revise any forward-looking information or statements in the Presentation. The reader should consult any further disclosures the Company may make in documents it files with the applicable securities regulators. The technical content of this presentation has been reviewed and approved by Steve Ross, P.Geol., a Qualified Person as defined by National Instrument 43-101 and an employee of the Company. TSXV: SLL | OTCQX: STLHF 2

EXECUTIVE SUMMARY The most rapidly advancing, de-risked lithium project in North America Largest reported lithium brine project in the U.S . . Initial target production of 21,000 tonnes LCE First mover with a clear path to production, existing infrastructure, most permits already in place Proprietary, Proven, Bolt-On Direct Lithium Extraction technology to extract and purify lithium from the waste brine by-product of existing bromine production facilities in south Arkansas. Strategic partnership with global chemical major LANXESS (Bayer, spinoff) includes project finance, off-take and operations commitment Positive ESG profile as North America’s most sustainable direct lithium extraction and processing project, minimal environmental footprint, full social license Strong project economics – lowest quartile OPEX Battery Quality Li 2 CO 3 Geo-politically safe, business friendly, low cost Arkansas U.S. location Standard Lithium’s industrial scale LiSTR direct lithium extraction demo plant installed at LANXESS south plant near El Dorado Arkansas

LITHIUM SUPPLY DEMAND PROJECTIONS Current Demand 300k tonnes, growing to 930k tonnes in 2025 and 2.1mm in 2030 Market set to move into a structural deficit from 2025 onward 6,000,000 5,000,000 4,000,000 3,000,000 2,000,000 Arkansas Target Initial Production Commences 1,000,000 0 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 Source Benchmark Mineral Intelligence TotalDemand Total Operational Supply TSXV: SLL | OTCQX: STLHF 4

NO LONGER JUST A TESLA STORY • Major automakers • Price parity with • CO 2 emission compliance • Automakers moving to are all-in on EV’s internal combustion & infrastructure ensure lithium supply engine (ICE) by investments spurring EV 2023 development Arkansas Target Initial Production Commences Limited vehicle choice – Increased vehicle choice + Major auto makers release EV’s, Comparison to internal combustion Higher price vehicles sales to lower prices + government cost parity with ICE Government vehicles early adopters incentives CO 2 & GHG regulations kick in TSXV: SLL | OTCQX: STLHF 5

FIRST TO MARKET: SLL’s Disruptive Lithium Extraction & Crystallization Technologies Will Accelerate The Sustainable Energy Transition Standard Lithium’s proprietary direct lithium extraction and A.I. powered lithium crystallization technologies are the key to unlocking a globally significant domestic U.S. critical mineral resource. • LiSTR Direct Lithium Extraction : • Not weather dependent, rapid manufacture – hours not months and more efficient than evaporation ponds • Shrink environmental footprint – several dozen acres vs. thousands and all lithium-void brine returned to source aquifer • Faster to market – Proven, Bolt-On process leverages the permitted infrastructure of North America’s largest brine processing facilities • SiFT Lithium Carbonate Crystallization : • A.I.-powered continuous crystallization designed to produce highest purity >99.9% Li 2 CO 3 for next generation lithium ion batteries TSXV: SLL | OTCQX: STLHF 6

LITHIUM: A Critical Mineral For National Security • The United States is largely absent from most steps of this supply chain, with virtually no mining or chemical processing of these materials domestically. Lithium Mining USA China Australia Chile Argentina 14% 46% 28% 11% 1% Lithium Chemical Processing USA China Chile Argentina Russia 51% 29% 11% 2% 7% Lithium Battery Cell Production USA China Japan Korea Europe 57% 15% 10% 7% 11% TSXV: SLL | OTCQX: STLHF 7

SOUTH ARKANSAS LITHIUM PROJECT: Project Summary The most rapidly advanced, proven direct lithium project in North America Largest reported lithium brine asset in the U.S. - 3.9 mm MT LCE* • Planned JV with global chemical company LANXESS** • Fast track to production by leveraging North America’s largest brine processing facilities, existing infrastructure, most permits in place • Positive Preliminary Economic Assessment • 21,000 tonnes/year Li 2 CO 3 (Initial target) • Post-tax NPV USD $ 900 mm • Post-tax IRR 36% ARKANSAS • Total CAPEX USD $ 430 mm • All-in OPEX USD $ 4,300/tonne battery quality Li 2 CO 3 • Non dilutive project finance & off-take commitment*** • * 3.14 mm tonnes indicated & 802K tonnes inferred resource – NI 43-101 TSXV: SLL | OTCQX: STLHF 8 • ** 70/30 JV in favor of LXS with option for SLL to reach 40% • *** See news release Nov 12, 2018

LANXESS Project: SOUTH ARKANSAS • 3.14 million tonne LCE Indicated Resource LITHIUM PROJECT • 150,000 acres of operating brine leases • 3 permitted brine processing plants Located on one of the worlds • 5+ billion gallons of existing brine flow largest brine reservoirs. • Initial targeted production 21,000 tonne/year Li 2 CO 3 from waste brine EL DORADO MAGNOLIA ARKANSAS ARKANSAS LANXESS LANXESS Central Plant TETRA Project : West Plant • 802,000 tonne LCE Inferred Resource • 27,000+ acres of brine leases LANXESS • Future expansion target 15K tonne/year LCE South Plant TSXV: SLL | OTCQX: STLHF 9

Standard Lithium & LANXESS AG: Joint Venture Apply Innovative Technologies & Strategic Partnership To Develop America’s Next Lithium Project * Joint Development Project Expertise & Capital Fast-track to Production LANXESS brings expertise in specialty chemicals, • LANXESS is a global specialty chemical • sales & marketing, operational expertise in company (Bayer spinoff) brine processing, economies of scale for large 60+ chemical production sites globally • power contracts & chemical reagent purchases • 21 North American sites – 14,000+ employees Operates the largest brine processing • facilities in North America • USD $ 7 billion revenue 2019 Provided CDN $5 mm loan to Standard • LANXESS project finance and off-take • Lithium for project development** commitment* *News Announcement November 12, 2018: standardlithium.com/investors/news-events **News Announcement November 01, 2019 standardlithium.com/investors/news-events TSXV: SLL | OTCQX: STLHF 10