AN UNCONVENTIONAL APPROACH: Applying innovative proprietary - PowerPoint PPT Presentation

AN UNCONVENTIONAL APPROACH: Applying innovative proprietary technologies and strategic TSX-V: SLL partnerships to build the next U.S. lithium project r OTCQX: STLHF 2019 J anuary 2020 Bank of America Battery & Energy Summit FSE: 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 toinvesting. 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 securitiesregulators. 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 theCompany. STANDARD LITHIUM | TSXV: SLL | OTCQX: STLHF 2

South Arkansas Lithium Project • Largest reported lithium brine asset in the U.S. 3.9MT LCE* • JV with global chemical company LANXESS** • The most advanced, de-risked lithium project in the USA • Fast track to production by leveraging North America’s largest brine processing facilities • 50+ years of brine production for bromine & other chemicals • 3 operating brine processing facilities & infrastructure • Most permits already in place • 5.25B gallons of brine produced & processed annually • 500+ employees on site • Positive Preliminary Economic Assessment • 20.9K tonne Li 2 CO 3 • Post-tax NPV $989M USD • Post-tax IRR 36% • Total capex $437M ARKANSAS • All in opex $4300 tonne battery quality Li 2 CO 3 • Non dilutive project finance & off-take commitment *** • Target 2022 initial production • 3.14 MT indicated & 800KT inferred resource – NI 43-101 • ** 70/30 JV in favor of LXS with option for SLL has option to achieve up to 40% subject to certain STANDARD LITHIUM | TSXV: SLL | OTCQX: STLHF 3 milestones • *** See news release Nov 12, 2018 - Subject to proof of concept & positive feasibility study

A GLOBALLY OPERATING SPECIALTY CHEMICAL COMPANY : • Founded in 2004 via spin-off chemical division from Bayer AG • 60 Chemical production sites globally • 21 North American production sites • 15,000+ employees • $8 Billion USD revenue 2018

LANXESS CENTRAL PLANT SOUTH ARKANSAS: LANXESS operations in southern Arkansas cover 150,000 acres, 10,000 brine leases and 250 miles of pipelines. LANXESS extracts brine from their wells located throughout the area, and the brine is transported through a network of pipelines to to three plants where the brine is processed for bromine recovery with the tail brine then re- injected to the aquifer. The three bromine plants currently LANXESS SOUTHERN PLANT LANXESS WESTERN PLANT employ approx. 500 people, have been in production for greater than 5 decades, and process roughly 5.25 billion gallons of brine annually. STANDARD LITHIUM | TSXV: SLL | OTCQX: STLHF 5

South Arkansas Lithium Project Located on one of the worlds largest brine reservoirs LANXESS Project: 150,000+ acres • 150,000 acres of operating brine leases 125M barrels of brine • 3 permitted brine processing plants produced annually • 3.14 Mt LCE Indicated Resource 27,000 acres 802Kt • Preliminary Economic Assessment 3.14 Mt LCE Indicated LCE Inferred Resource targeted 20.9Kt per annum Li2CO3 Resource 1.8 GWH Power Plant TETRA Project: El Dorado Chemical Plant • 27,000 acres of brine leases • 802Kt LCE Inferred Resource South Central Arkansas Project: El Dorado • Supportive jurisdiction ARKANSAS • Minimal geo-political & permit risk • Low cost power less than .05kw LANXESS Plant LANXESS Plant • Local low-cost chemical reagents • Road, rail, power, plentiful water at site TETRA Project • Skilled workforce LANXESS Plant LANXESS Project LANXESS ARKANSAS LOUISIANA

Leveraging Existing Infrastructure for Phased Build-Out Initial Production Target - 20.9K tonnes battery quality Li 2 CO 3 Expansion Target Additional 15,000 TPA* DEMONSTRATION PHASE 1 PHASE 2 PHASE 3 EXPANSION PLANT SOUTH PLANT WEST PLANT CENTRAL PLANT Target 15,000 TPA* 100-150 TPA Li 2 CO 3 9,700 TPA Li 2 CO 3 3,000 TPA Li 2 CO 3 8,200 TPA Li 2 CO 3 Li 2 CO 3 Target YE 2022 Target YE 2025 Q1 2020 Target YE 2023 • Tetra resource NI 43-101 800KT inferred resource – NI 43-101 STANDARD LITHIUM | TSXV: SLL | OTCQX: STLHF 7

South Arkansas Lithium Project • LiSTR Scalable, simple, direct lithium extraction technology •Bolt-on process extracts lithium from current industrial waste (“tail”) brine stream •Successful bench-scale & continuous pilot testing •Industrial scale pre-commercial demonstration plant 50 GPM - 150TPA •Commissioning phase currently underway Demonstration Plant: Photo taken Dec 4, 2019 STANDARD LITHIUM | TSXV: SLL | OTCQX:STLHF 8 Technology Innovation – Boldly Going Where Others Have Gone Before

LiSTR - Direct Lithium Extraction Technology • Minimal environmental footprint – several dozen acres vs thousands • Virtually all water/brine returned to aquifer • Not weather dependent • Vastly reduces recovery time from months to hours • Increases effective Li recovery >90% • Continual analysis and optimization processes improve final purity • Unlocks overlooked/unconventional brine resources • Modular, scalable & flexible to increase or manage production LiSTR Demo Plant May 29, 2019 STANDARD LITHIUM | TSXV: SLL | OTCQX: STLHF 9

South Arkansas Lithium Project Demonstration Plant Location Lanxess South Brine Processing Facility

Leverage Existing Brine Supply Infrastructure - Bromine Extraction Circuit BROMINE EXTRACTION* pH BALANCE* HYDROCARBON STRIPPING OF RAW BRINE* AND FILTER TAILBRINE REINJECTION EXTRACTION WELLFIELD* WELLFIELD* 26 supply & 35 disposal wells in place Bromine tower 125 million barrels produced annually STANDARD LITHIUM | TSXV: SLL | OTCQX:STLHF 11 11 * EXISTING INFRASTRUCTURE

SIMPLIFIED LITHIUM EXTRACTION PROCESS FLOWSHEET (LiSTR); Leverage Existing Brine Supply Infrastructure Bromine extraction* pH Balance* HYDROCARBON STRIPPING OF RAW BRINE* and filter Strip loaded Load sorbent sorbent IX Polish Tailbrine RO conce centration High purity TAILBRINE Wash loaded concentrated LiCl sorbent solution suitable for conversion REINJECTION EXTRACTION WELLFIELD* WELLFIELD* Continuous in-line analysis of Continuous pH control Continuous pH pH control polished LiCl solution 12 12 * EXISTING INFRASTRUCTURE 12 12