Exhibit 99.1 Corporate Presentation Boron and Lithium Enabling Three Global Mega-trends 5 3 B Li Boron Lithium 6.941 10.811 September 2022

Disclaimer FORWARD-LOOKING STATEMENTS The information in this Presentation includes “forward looking statements”. All statements other than statements of historical fact included in this Presentation regarding our business strategy, plans, goals and objectives are forward looking statements. When used in this Presentation, the words “believe”, “project”, “expect”, “anticipate”, “estimate”, “intend”, “budget”, “target”, “aim”, “strategy”, “estimate”, “plan”, “guidance”, “outlook”, “intend”, “may”, “should”, “could”, “will”, “would”, “will be”, “will continue”, “will likely result” and similar expressions are intended to identify forward looking statements, although not all forward looking statements contain such identifying words. These forward looking statements are based on 5E’s current expectations and assumptions about future events and are based on currently available information as to the outcome and timing of future events. We caution you that these forward looking statements are subject to all of the risks and uncertainties, most of which are difficult to predict and many of which are beyond our control, incident to the extraction of the critical materials we intend to produce and advanced materials production and development. These risks include, but are not limited to: our limited operating history in the borates and lithium industries and no revenue from our proposed extraction operations at our properties; our need for substantial additional financing to execute our business plan and our ability to access capital and the financial markets; our status as an exploration stage company dependent on a single project with no known Regulation S-K 1300 mineral reserves and the inherent uncertainty in estimates of mineral resources; our lack of history in mineral production and the significant risks associated with achieving our business strategies, including our downstream processing ambitions; our incurrence of significant net operating losses to date and plans to incur continued losses for the foreseeable future; risks and uncertainties relating to the development of the Fort Cady Integrated Boron Facility (“Fort Cady”), including our ability to timely and successfully complete our Small Scale Boron Facility; and other risks. Should one or more of these risks or uncertainties occur, or should underlying assumptions prove incorrect, our actual results and plans could differ materially from those expressed in any forward looking statements. No representation or warranty (express or implied) is made as to, and no reliance should be placed on, any information, including projections, estimates, targets and opinions contained herein, and no liability whatsoever is accepted as to any errors, omissions or misstatements contained herein. You are cautioned not to place undue reliance on any forward looking statements, which speak only as of the date of this Presentation. Except as otherwise required by applicable law, we disclaim any duty to update and do not intend to update any forward looking statements, all of which are expressly qualified by the statements in this section, to reflect events or circumstances after the date of this Presentation. MARKET AND INDUSTRY DATA This Presentation has been prepared by 5E and includes market data and other statistical information from third party sources, including independent industry publications, government publications or other published independent sources. Although 5E believes these third party sources are reliable as of their respective dates for the purposes used herein, neither the Company nor any of its affiliates, directors, officers, employees, members, partners, shareholders or agents makes any representation or warranty with respect to the accuracy or completeness of such information. Although the Company believes the sources are reliable, it has not independently verified the accuracy or completeness of data from such sources. Some data is also based on 5E’s good faith estimates, which are derived from its review of internal sources as well as the third party sources described above. Additionally, descriptions herein of market conditions and opportunities are presented for informational purposes only there can be no assurance that such conditions will actually occur or result in positive returns. CAUTIONARY NOTE REGARDING RESERVES Unless otherwise indicated, all mineral resource estimates included in this Presentation have been prepared in accordance with, and are based on the relevant definitions set forth in, the SEC’s Mining Disclosure Rules and Regulation S-K 1300 (each as defined below). Mining disclosure in the United States was previously required to comply with SEC Industry Guide 7 under the Exchange Act (“SEC Industry Guide 7”). In accordance with the SEC’s Final Rule 13-10570, Modernization of Property Disclosure for Mining Registrant, the SEC has adopted final rules, effective February 25, 2019, to replace SEC Industry Guide 7 with new mining disclosure rules (the “Mining Disclosure Rules”) under sub-part 1300 of Regulation S-K of the Securities Act of 1933, as amended (the “Securities Act”) (“Regulation S-K 1300”). Regulation S-K 1300 replaces the historical property disclosure requirements included in SEC Industry Guide 7. Regulation S-K 1300 uses the Committee for Mineral Reserves International Reporting Standards (“CRIRSCO”) - based classification system for mineral resources and mineral reserves and accordingly, under Regulation S-K 1300, the SEC now recognizes estimates of “Measured Mineral Resources”, “Indicated Mineral Resources” and “Inferred Mineral Resources”, and require SEC-registered mining companies to disclose in their SEC filings specified information concerning their mineral resources, in addition to mineral reserves. In addition, the SEC has amended its definitions of “Proven Mineral Reserves” and “Probable Mineral Reserves” to be substantially similar to international standards. The SEC Mining Disclosure Rules more closely align SEC disclosure requirements and policies for mining properties with current industry and global regulatory practices and standards, including the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, referred to as the “JORC Code”. While the SEC now recognizes “Measured Mineral Resources”, “Indicated Mineral Resources” and “Inferred Mineral Resources” under the SEC Mining Disclosure Rules, investors should not assume that any part or all of the mineral deposits in these categories will be converted into a higher category of mineral resources or into mineral reserves. For additional information regarding these various risks and uncertainties, you should carefully review the risk factors and other disclosures in our amended Form 10 filed with the U.S. Securities and Exchange Commission (SEC) on March 7, 2022, and our Form 10-Q filed with the SEC on May 12, 2022, and our Form 8-K filed with the SEC on August 11, 2022. Additional risks are also disclosed by 5E in its filings with the Securities and Exchange Commission throughout the year, as well as its filings under the Australian Securities Exchange. 2

Why 5E Advanced Materials? Boron and 5E sit at the convergence of three global mega-trends Unique boron opportunity – scarce and valuable Food Security Favorable supply / demand dynamics Vertically integrated business model focused on high value advanced materials Optionality with co-product lithium production and many boron end markets Decarbonization Domestic Supply Catalyst rich 3 3

Table of Contents Corporate overview / Boron, 5E and converging global mega-trends / Unique boron opportunity / Favorable supply / demand dynamics / Business model designed to drive enhanced shareholder value / Substantial optionality / Many catalysts / Well balanced management team with right skills / Summary / Appendices / The boron supply tree / Valuation Opportunity / Sustainability / 4

Corporate Overview Assets As of August 26, 2022 3 327M Tons 8.22% Boric Acid Content Ticker FEAM 5EA 0.17% Lithium Carbonate Content Integrated Boron Processing Facility Share Price $15.83/share A$2.29/share (initial phase under construction) Advanced Materials Business Targeting 1 Boron Decarbonization Applications: Common Shares / CDIs 43.3M 433.0M § Electrification of transport and energy § Food security, and 2 1 Options 4.8M 48.7M § New future facing industries Undiluted Market $686M A$993M Share Price US Nasdaq Capitalization 35 4 Share Price Volume 4 3.5 Cash Balance $78.4M 30 3 25 2.5 20 Analyst Coverage 2 15 1.5 10 1 5 0.5 0 0 March 15, 2022 March 29, 2022 April 12, 2022 April 26, 2022 May 10, 2022 May 24, 2022 June 7, 2022 June 21, 2022 July 5, 2022 July 19, 2022 August 2, 2022 August 16, 2022 1 Common shares and CDIs are fully fungible and convert at the rate of 1 common share for 10 CDIs. Numbers as of June 30, 2022. 2 5 Options as of June 30, 2022. 3 Regulation S-K 1300 Initial Assessment Report dated October 18, 2021 (using 2% cut-off grade) prepared by Millcreek Mining Group. 4 Unrestricted cash $68.4M Share Price ($) Volume in shares (M)

Boron and 5E at the Center of Three Global Mega-Trends The element and 5E straddle three global mega-trends Food Security 1 § Boron is a micronutrient used to increase crop yields 2 § Boron based fertilizers are currently widely used commercially § Energy Generation ⇢ Wind ⇢ Solar ⇢ Nuclear § Energy Efficiency ⇢ Fiberglass Insulation § Decarbonization applications ⇢ Fire retardants § Food security applications § Electrification of Transportation § Semiconductors ⇢ NdFeB permanent magnets § Armor and defense applications ⇢ Boron steel § Space satellites and advanced ceramics ⇢ Batteries § Pharmaceuticals § New future facing industries Decarbonization Domestic Supply 1 Company commissioned University of Connecticut crop trial test: May 25, 2020. 2 6 Credit Suisse Climate Transition Super Materials Equity Research Report dated December 7, 2021; and Boron and SOP Market Overview Report, April 6, 2018, prepared by Context.

Decarbonization 1 Boron is an enabler of many decarbonization technologies Electric Vehicles Clean Energy and Efficiency MAGNETS FOR BLADES MOTOR Blade is comprised POLYMER CAPACITORS High powered of fiberglass ADDITIVES Improved formulations for permanent magnets Fire retardant synergist and manufacturing aluminum-plate are made using boron thermal stabilizer capacitors and electrolytes SOLAR PANELS Borosilicate Glass to BODY PANELS strengthen modules Reinforce textile THERMAL + ACOUSTIC fiberglass INSULATION Improve thermal stability and noise reduction INSULATION Boron increases the infrared absorption of glass fibers, it helps to improve the insulation’s effectiveness LI-ION BATTERY + HYDRAULIC FLUIDS Enhanced performance and safety. Reduced wear and friction HIGH STRENGTH STEEL NUCLEAR ENERGY Boron steel is lighter and Boron is a primary neutron absorber stronger than traditional steel used in the construction of the control rods in the core of a nuclear reactor NdFeB - neodymium, iron, and boron Electric Motors Neodymium Magnets are most commonly used in electric motors to power electric vehicles and wind turbine motors MAGNETS Electric motor Drive train + braking systems Steering & transmission LI-ION BATTERY ADDITIVES + COMPONENTS Doors & windows Increasing anode and cathode surface 1 Credit Suisse Climate Transition Super Materials Equity Research Report dated December 7, 2021. 7

Food Security Boron is helping to keep the world fed as an essential micronutrient required by crops Crop yield is becoming an important food security issue as the availability of arable 2 land has decreased by 15% over the last 30 years 3 Boron is the second-most consumed micro-nutrient in North America by value 1 Boron deficient areas Boron is an important micronutrient in feeding a growing global population. World population is forecasted to grow 2 35% to 9.8B by 2050 , requiring higher farming yields to meet global food production needs. 4 5E/UConn Broccoli Crop Yield Trials Avg Yield 2.65 3.0 2.7 Yield Crops where boron adds value include: broccoli, cabbage, cauliflower, 2.6 increased turnips, rice, beetroot, spinach, asparagus, carrots, eggplants, leeks, okra, 2.3 more than 2 onions, parsnips, radishes, strawberries, sweet corn, tomatoes, and potatoes. times Pressure on Farming Yield 1.2 Micronutrient Boron is an essential micronutrient or trace element P=0.03 Broc T1 Broc T2 Broc T3 Broc T4 Broc C 5E Boron Enriched SOP Blends Control 1 The University of Adelaide Fertiliser Technology Research Centre Boron fertilizers: use, mobility in soils and uptake by plants presentation, International Agriculture Symposium of Boron (AGROBOR 2016). 2 8 The World Population Prospects report: The 2017 Revision, published by the UN Department of Economic and Social Affairs. 3 Boron and SOP Market Overview Report, April 6, 2018, prepared by Context. 4 Company commissioned University of Connecticut crop trial test: May 25, 2020. Yield (lb/plot)

Secure Critical Supply Chains 5E is aiming to reduce reliance on Turkish resources and Chinese processing Advanced Military Aerospace Ceramics Semiconductors Permanent Magnet Applications Motors New US Climate Bill Seeks to Bolster Executive order: Building Resilient Supply Chains, Revitalizing American Domestic Critical Minerals Supply Manufacturing, And Fostering Broad-based Chain Growth August 7th, 2022 The Act includes incentives to increase the June, 2022 production of electric vehicles, renewables, and Review of America’s Supply Chains vulnerabilities. critical minerals as part of a policy to reduce reliance on Chinese and Russian supplies. U.S. Government 2 China Is Moving Rapidly Up the Rare 20% Rio Tinto designates 5E Earth Value Chain Boron Facility as Critical August 7th, 2022 Infrastructure China is making an unrelenting effort to integrate and February 7th, upgrade its rare earth supply chain of upstream mining, 2022 processing, manufacturing, and deeper applications. 1 Although it has only about one-third of the world’s 65% Turkish Government rare earth reserves, China now accounts for 60% of global rare earth mined production, 85% of rare earth 80% downstream processing capacity, and over 90% of high-strength rare processing of boron earth permanent magnets manufactured. 2 carbides in China CHIPS and Science Act Will Lower Costs, Create Jobs, Strengthen Supply Chains, and Counter China 5E – Initial SSBF production targeted for 2023 August 9th, 2022 Act to strengthen American manufacturing, supply Secure U.S chains, and national security, and invest in research US focused on onshoring critical materials. Today, 80% of and development, science and technology, and the 2 downstream boron processing takes place in China with workforce of the future to keep the United States the Domestic Supply leader in the industries of tomorrow, including 1 65% of global supply produced in Turkey nanotechnology, clean energy, quantum computing, and artificial intelligence. 1 Turkish market share, Daily Sabah: Turkey’s boron sales smash record with $1B in 2021, and 5E company estimates. 2 9 Global Market Insights Inc., U.S. Geological Survey, and INTEK Inc.

Future Facing Technology and Markets High value-in-use as an enabler of new technologies and markets 1 2 3 Cancer Treatment Nano Technology Advanced Materials Novel Technology Boron Neutron Capture Therapy Boron Nitride Nanotubes (BNNT) Boron is one of the most 5E Advanced Materials is (BNCT) is a type of radiation is a new material with great chemically and physically currently focused on advancing a therapy. A substance that potential. It is considered one of versatile elements, and can be research collaboration with contains boron is injected into a the world's strongest and most manipulated to form a strong but Georgetown University for the blood vessel. The boron collects advanced fiber. BNNT offers flexible 2-dimensional structure development of boron-based in tumor cells. The patient then significant material benefits in: called borophene. materials in permanent magnets. receives radiation therapy with • aviation Borophene applications include: This research has the potential to atomic particles called neutrons. • automotive create novel intellectual property The neutrons react with the • supercapacitors • space travel and commercialization pathways boron to kill the tumor cells • energy storage devices for 5E as it pertains to the without harming normal cells. • advanced fabrics • biosensors manufacturing of boron Boron neutron capture therapy is • insulation • batteries enhanced permanent magnets being studied as a treatment for • filtration • flexible electronics with a specific focus on glioblastoma multiform and • electronics and • hydrogen storage enhancing performance through recurrent head and neck cancer. • defense systems increased usage of boron. 1 National Cancer Institute “Dictionary of Cancer Terms” 2 10 Dr Catharine Fay, Senior NASA Scientist (NASA Langley Research Center) TEDx talk Arendal, Norway 3 National Library of Medicine “The Emergence and Evolution of Borophene” Ou M, Wang X, Yu L, Liu C, Tao W, Ji X, Mei L. The Emergence and Evolution of Borophene. Adv Sci (Weinh). 2021 May 2;8(12):2001801. doi: 10.1002/advs.202001801. PMID: 34194924; PMCID: PMC8224432.

Unique Boron Opportunity Initial production on schedule for 2023 § Duopoly Supply Market - 65% Turkish Government / 20% Rio Tinto 1 § Rio Tinto reserves expire in 2042 after +100 years of operation § Only six new visible projects globally - Only 5E substantially permitted 2 § 5E targeting 500kstpa of boric acid equivalent and several thousand tons of 3 lithium carbonate at full production – Less than 5% of global demand in 2030 4 Significant Asset SITE OFFICE ~327m Tons 8.22% 0.17% Boric Acid Lithium BORON RESOURCE AND APPROVED SOLUTION EXTRACTION REGION Content Carbonate Content 1 Rio Tinto 2017 Annual Report “write back of Ore Reserves the operating life of RTB Boron has been reduced by 7 years and is anticipated to run until 2042.” 2 11 5E company aspirational target consistent with disclosure provided in Form 10-Q released May 12, 2022. 3 Credit Suisse Climate Transition Super Materials Equity Research Report December 7, 2021 (High Demand case). 4 Regulation S-K 1300 Initial Assessment Report dated 18 October 2021 (using 2% cut-off grade), Millcreek Mining Group.

Favorable Supply / Demand Dynamics Substantial demand growth with limited new supply options 1 1 Supply / Demand Imbalance Boron Demand Growth 16.0 70.0 . 10.0 x10 . Expected Widening of 14.0 . Growth Boron Supply Gap Over Time . . 8.0 12.0 . x2 10.0 Growth 6.0 8.0 5.5 4.6 4.0 6.0 3.9 3.4 4.0 4.5 2.0 3.0 2.0 2.5 0.0 0.0 2020 2030 2050 2022 2024 2026 2028 Non-Decarbonization Applications Decarbonization Applications Turkey United States Rest of World Demand Estimate Demand Growth Expected Continued Supply Pressures Bringing the Driven by Key Decarbonization Sectors BORON Supply Gap into Focus 1 Credit Suisse Climate Transition Super Materials Equity Research Report December 7, 2021 (High Demand case). Note: Elemental boron figures converted to boric acid equivalent at a ratio of 1-to-5.72, then to short tons at 1.1. 12 (M short tons per annum; boric acid equivalent) (M short tons per annum; boric acid equivalent)

Favorable Pricing Dynamics The potential for a step change in boron pricing supported by other leading decarbonization inputs Peer Market Pricing - FY21 and FY22 Spot Prices Expected Demand 1 5 indexed to 1 July 2020 in 2030 1200% Outlook and market demand for permanent 2 Lithium Carbonate 1000% magnet motors 2,661ktpa, which is over five times 2021 production levels, and equates to (Neodymium as proxy for 50 new operations Rare Earths) and batteries 800% (Lithium) have driven sharp pricing increases 66ktpa, which is double 2020 production levels 600% Decarbonization and Food 400% Neodymium Security applications have 3 Oxide the potential to drive a step change in boron pricing 200% 4 Boric Acid 11,451kstpa, which is approximately double 2021 production levels 0% 3-Jul-20 5-Feb-21 10-Sep-21 15-Apr-22 1 5 Spot prices indexed to July 1, 2020 on a price/kg basis. Lithium demand - International Energy Agency Report, “Global Supply Chains of EV Batteries”, July 2022 (APS scenario). 2 13 Lithium Carbonate (99.5% Battery grade, CIF China, Japan & Korea, $/kg). Source: Fastmarkets. Neodymium demand - International Energy Agency Report, “The Role of Critical Minerals in Clean Energy Transitions”, May 2021 (SDS scenario). 3 Nd oxide ($/kg ex VAT, Shanghai). Source: Steelhome. Boric Acid demand - Credit Suisse Climate Transition Super Materials Equity Research Report December 7, 2021 (high demand scenario) – 4 Chinese Boric Acid Prices. Source: echemi.com. Note: Lithium data converted to Lithium Carbonate at 5.323 times. Elemental boron figures converted to boric acid equivalent at 5.72, times and to short tons at 1.1.

Business Model Designed to Drive Shareholder Value Fully integrated business model to capitalize on 5E’s competitive advantage Fully Integrated Business Model 5E Competitive Advantage 1. EXTRACTION 2. PROCESS 3. VALUE-ADD • Backwards integration • Relatively low carbon • Enter agreements to deliver footprint Boron Advanced Materials Boric Acid in solution • Access to low-cost supply • Attractive cost profile with • Go-to-market strategy to be • 500kstpa target run-rate potential co-product sales underpinned by long-term 1 Drying and bagging boron production (lithium, gypsum) partnerships • Targeting several thousand • Build or buy advanced • R&D to innovate new future tpa lithium carbonate Transported to China material capabilities facing-enabling applications 2 production Boric Acid into solution Into process plant Advanced material ND RD th Shipment to US MINERAL 2 DERIVATIVE 3 DERIVATIVE 4 DERIVATIVE APPLICATIONS Raw Material Boric Acid Boron Oxide Carbides/Nitrides $ $$ $$$ $$$$ Customer 1 5E company aspirational target consistent with disclosure provided in Form 10-Q released May 12, 2022. 2 14 Refer to 5E “Third Quarter 2022 Results” press release dated May 13, 2022 (Project Update).

Substantial Optionality Major existing and new boron markets with co-product lithium opportunities 1 1 2 Emerging Boron Markets Boron Markets Today Lithium Market (kt) 500 Future Facing 1.6M tons of new demand (Magnets, Nuclear, Defense, Pharma), 400 19% expected from future facing industries 300 200 Food Electrification of 100 Security, Glass Transportation, 23% (Borosilicate Glass, Fiberglass 0 31% composites), 2017 2018 2019 2020 2021 51% EV Demand Other Batteries Ceramics and Glass Other 3000 2500 +50 2000 Micronutrient, +30 13% 1500 1000 Ceramics, 500 15% 0 2021 STEPS APS 2030 Detergents, 2% Domestic Supply Green Energy 50 new Lithium projects (non-Decarbonization), Wide Range of Generation and 29% Efficiency, are required to meet stated Traditional Applications, 17% market demand by 2030 with Limited Substitutability 1 Global Market Insights, Inc. 2 15 International Energy Agency Report, “Global Supply Chains of EV Batteries”, July 2022 (STEPS and APS scenario) - Note: Original Lithium data converted to Lithium Carbonate using 5.323 times conversation ratio Axis Title

Many Catalysts Achieved Meaningful catalysts already delivered in the first two quarters since Nasdaq listing Georgetown University Collaboration D.A. Davidson Initiated Russell Index Research Coverage $60M Investment Inclusion Baird Initiated 5E Nasdaq Listing Research Coverage U.S. Govt designates 5E Fort Cady Corning Boron Facility as Critical Partnership Infrastructure Corporate Activity Shareholder Value Project Activity Small Scale TODAY Boron Facility Construction Commenced 16

Potential Catalysts to Come Further project and corporate catalysts in the pipeline to deliver shareholder value Russell Index Inclusion Georgetown University Further Government Support Initiatives D.A. Davidson Initiated Collaboration Research Coverage Bluescape Product Development Baird Initiated $60M 5E Nasdaq Listing Research Investment Coverage Customer and Industry Partnerships U.S. Govt designates 5E Fort Cady Corning Boron Facility as Critical Partnership 5E and Boron Awareness Campaign Infrastructure Corporate Activity Shareholder Value Project Activity Small Scale Facility Small Scale Commissioned Initial Production Boron Facility Construction Value Engineering Capacity Expansions Commenced Advanced Material Production Initial Sales TODAY 17

Well Balanced Management Team with the Right Skills Complementary skill sets to advance project and corporate initiatives Henri Tyson Dr Dinakar (Dino) Paul Chantel Jordan Chance J.T. Tausch Hall Gnanamgari SVP, General Weibel Pipitone Starzecki CEO COO CCO/CTO Counsel and CPO CFO SVP Corp Dev, IR CMO Henri Tausch was appointed Tyson Hall was appointed Chief Dr. Dinakar Gnanamgari was Chantel Jordan is a member of Paul Weibel is an active Certified Chance Pipitone was appointed J.T. is global business executive, Chief Executive Officer and Operating Officer of 5E the state bar of Texas and Public Accountant and was appointed Chief Commercial Senior Vice President of with extensive experience in the Missouri and was appointed appointed Chief Financial Officer Director of 5E Advanced Advanced Materials, Inc. and Officer and Chief Technical Corporate Development and resources sector with a focus on Materials, Inc. in September Fort Cady (California) Officer of 5E Advanced Senior Vice President, General of 5E Advanced Materials, Inc. in Investor Relations in September market and customer 2021. From August 2021 to Corporation in September 2021. Materials, Inc. in September Counsel, Chief People Officer, November 2021, Chief Financial 2021. Prior to joining 5E development, capital raising, September 2021, Henri served Prior to joining 5E Advanced 2021. From May 2021 to and Corporate Secretary of 5E Officer of Fort Cady (California) Advanced Materials, Inc., project finance, business as Chief Executive Officer of Fort Materials, Inc., Tyson served in Advanced Materials, Inc. in Corporation in May 2021, and September 2021, Dr. Dinakar Chanson was a Senior strategy, and product placement. November 2021. In April 2022, director of Fort Cady (California) Cady (California) Corporation, a multiple roles at Pilgrim’s Pride served as Chief Commercial Investment Professional at Prior to joining 5E, he was the subsidiary of American Pacific Corporation where he was Head Officer and Chief Technical Chantel was appointed Corporation in April 2022. Paul multiple investment firms, Chief Marketing Officer for Anglo Borates Limited. Prior to of Case Ready Business Unit Officer of Fort Cady (California) Corporate Secretary of Fort served as Corporate Secretary of including Luminus Management, American Crop Nutrients, as well joining Fort Cady (California) from December 2020 to March Corporation. Prior to joining Fort Cady (California) Corporation. Fort Cady (California) LLC from April 2018 to August as Board Advisor to various Corporation, Henri was the 2021, Head of Commercial Chantel served as Assistant Corporation from August 2021 to Cady (California) Corporation, 2021, Salient Partners, L.P., junior mining companies. J.T. General Counsel and Assistant April 2022 and Treasurer since Senior Vice President and Chief Business Unit from October 2017 Dr. Dinakar was the Global from February 2015 to April holds a Bachelor of Arts degree Operating Officer of Shawcor Ltd to November 2020, and Head of Business Vice President of Corporate Secretary of April 2022. Previously, Paul was 2018, and Center Coast Capital in Accounting from St. John’s from July 2020 to December Export Sales from September Lithium Specialties of Albemarle American Bureau of Shipping the Financial Controller of Advisors, L.P. (now Brookfield University. 2020, Senior Vice President from 2016 to September 2017. Before Corporation from January 2018 from July 2020 to November Genlith, Inc. from January 2017 Asset Management, Inc.) from November 2018 to July 2020, joining Pilgrim’s Pride 2021, Assistant General Counsel to May 2021 and Finance to May 2021. Before joining September 2012 to February from June 2019 to June 2020, Director of the Schooner and Group President from Corporation, Tyson held multiple Albemarle Corporation, Dr. 2015. October 2014 to October 2018. roles at Albemarle Corporation Dinakar served in multiple roles and Senior Counsel from July Investment Group LLC from July Henri has also held directorships where he was the Global at FMC Corporation where he 2012 to May 2019. 2014 to December 2014. of Band Iron Group Inc. from Business Director of was the Global Health Segment June 2019 to September 2021 Performance Materials from Manager from January 2017 to and of Zedi Inc. from January February 2015 to February 2016 December 2017 and Global 2018 to June 2019. and Global Business Director of Product Manager from May 2016 Bromine and Derivatives from to December 2017. Additionally, May 2013 to January 2015. Dr. Dinakar was the North American Product Manager of Axalta Coating Systems Ltd. From May 2014 to April 2016. LUMINUS MANAGEMENT 18

Summary Boron and 5E sit at the convergence of three global mega-trends Unique boron opportunity – scarce and valuable Food Security Favorable supply / demand dynamics Vertically integrated business model focused on high value advanced materials Optionality with co-product lithium production and many boron end markets Decarbonization Domestic Supply Catalyst rich 19 19

A. The Boron Supply Tree The BORON Supply Tree Boric Acid provides a large Ores & Concentrate Specialty Materials Advanced Materials foundation to sell into established and growing § Colemanite Boric Acid Zinc Borates markets. § Ulexite Ammonium Pentaborate § Tincal (Borax) Potassium Pentaborate Future Facing (Magnets, Nuclear, Defense, Pharma), § Kernite Sodium Borohydride Advanced Materials add a 19% high-value opportunity into Boron Oxide existing and future facing Glass industries with higher value-in- (Borosilicate Glass, Fiberglass composites), use based pricing. Boron Carbide 51% Also creates opportunity to build Boron Nitride an intellectual property portfolio. Amorphous Boron Micronutrient, 13% Ceramics, 15% Detergents, 2% Source: SAI Industrial, LLC, Global Market Insights, Inc., and Company estimates. 20 Axis Title

B. Valuation Opportunity 1 Catalysts for Value Creation Enterprise Value / 2022E EBITDA Multiple Significant valuation potential for Boron and 5E: § Wider application set than battery 24.6x metals § Boron market is more concentrated with two producers at 85% of global 35.0x supply § Vertically integrated business model 16.9x with significant U.S. resource § High price and value-in-use product Avg focus 25.5x 1 Factset data as of August 26, 2022. EBITDA estimates based on consensus broker estimates where available. 21

C. Sustainability is an Important Focus for the Business Building Blocks of 5E’s PRODUCTION IMPACTS ENERGY TRANSITION Sustainability Strategy Consume fewer resources Applications enable decarbonization § In-situ extraction § Emissions reduction § Closed loop water use§ UN Sustainable Development Goals § Pre-heated solution (SDG’s) Enabling § Process energy management Decarbonization § Integrated derivative with Boron-based production Advanced Materials COMMUNITY IMPACTS BUILT-IN SUSTAINABILITY Community prosperity ‘Clean sheet’ advantage § Growing workforce§ Board engaged § Specialized training § Sustainability work underway FOCUS ON INNOVATION § Local procurement and § Diverse Board and leadership New applications investment§ Culture and mindset § University research agreement § Joint Development Agreements with customers § Technical / research collaborations 22

D. Contribution to UN Sustainable Development Goals The 5E operation and boron inputs into clean energy applications align across multiple UN SDG’s § Insulation adds climate resilience and reduces energy use § Micronutrients help counter climate change effects on and costs agriculture in poorer countries § Visual displays and devices advance electrification § Micronutrients generate higher yields and support soil § Fiber optics enable access to services quality preservation § EVs lower carbon emissions and reduce air pollution§ Boron enhances strength, durability, and life of products § Cellulose insulation products use recycled material § Pharmaceuticals support well-being § Safe and healthy work environment§ Closed loop water recycling § Renewable infrastructure accelerates transition to a § Permanent magnets and battery units improve EV performance net-zero future and range § Process energy efficiency§ Protective materials reduce resource use and extend asset life § Job creation and skills training§ In-situ extraction reduces land disturbance and eliminates overburden § Composites improve performance and lifespan of § University research and technical collaboration sustainable infrastructure § Local economic activity and infrastructure investment Source: United Nations: The Global Goals for Sustainable Development (SDGs). 23

Boron and Lithium 5Eadvancedmaterials.com J.T. Starzecki Chief Marketing Officer jstarzecki@5eadvancedmaterials.com Chance Pipitone SVP Corporate Development, Investor Relations cpipitone@5eadvancedmaterials.com 24