A US Critical Materials Company Corporate Presentation - September 2018 ASX: PLL NASDAQ: PLLL ABN 50 002 664 495

Highlights Strong Lithium Markets Ideal Location  Electric vehicle adoption accelerating Contract lithium prices at record levels  Abundant infrastructure and deep talent pool Proximity to downstream processing  Faster growth and higher prices vs. carbonate Integrating to Hydroxide  Low-cost conversion direct from spodumene 1st Quartile Costs  US$193/t 6% con and US$3,112/t LiOH Conventional processing and by-product recovery  Phased development to minimize dilution Minimal Equity Requirements  Phase 2 funded from cash flow and debt markets  Only US spodumene project Unique Strategic Value  Insulated from emerging market concerns 2

Lithium Fundamentals Very Strong Dramatic EV Growth in 2018 +100% in China+50% in USA +40% in Europe EV Demand Catalysts all Improving Range, charging infrastructure and cost……the 4th is “choice” and new EVs are coming Concerns on Supply Side Argentina - hyperinflation and export taxes Chile - onerous royalties and ‘war for water’Australia - union activity and cost inflation EV Sales Accelerating Contract Pricing at Record Highs 3

Ideally Located in North Carolina # 1 State for Business Forbes 2017 0% State Mining Royalties 23% Corporate Tax Rate 100% Historic Lithium Production 4

Focus on Battery-Grade Hydroxide Fast Growth… Hydroxide preferred for high-nickelchemistry batteries Battery-grade hydroxide to grow from20,000tpy to 400,000tpy by 2027 …Premium Prices… “We assume the current ~$2,000premium for hydroxide remainsconstant” - Goldman Sachs & Co. Hydroxide Demand Carbonate Demand 400,000 300,000 200,000 100,000 - 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 Hydroxide Price Carbonate Price 18,000 16,000 14,000 12,000 10,000 2017 2018 2019 2020 2021 2022 2023 2024 2025 6,165 5,300 …and Low Production Costs “Spodumene is 15% more cost-effectiveto produce lithium hydroxide than saltbrine” - McKinsey & Co. 2,000 2,100 3,500 3,000 665 Brine Spodumene 3,111 1,975 1,136 Piedmont Processing to Lithium Hydroxide (Upper Range) US$/tonne Costs Processing to Lithium HydroxideProcessing to Lithium Carbonate Concentrate Mining / Brine Harvesting 5

Low-Cost Spodumene Supply + Low unit operating costs + Royalties <1% + Short transportation distances+ Substantial by-product credits $900 2023 Spodumene Concentrate Cost Curve $800$700$600$500$400$300$200$100 $0 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 Cumulatative Concentrate Production (Kt/yr) Source: Roskill, Refined production cost includes all direct and indirect operating costs related directly to the physical activity of producing arefined lithium compounds, including feedstock costs (either from internal sources measured using the all-in sustaining cost of production (site operating plus other costs, as defined above), refining, on-site general and administrative costs and selling expenses. It does not include 6 costs associated with corporate-level administrative expenses.

Low-Cost LiOH Producer + Low-cost spodumene supply + Substantial cost advantage vs. WA - Labor - Electricity - Natural Gas + Deep talent pool in local region $10,000 $9,000 2023 Lithium Hydroxide Cost Curve $8,000$7,000$6,000$5,000$4,000$3,000$2,000$1,000 $0 0 20 40 60 80 100 120 140 160 180 Cumulative Production (Kt LiOH.H2O) Source: Roskill, Refined production cost includes all direct and indirect operating costs related directly to the physical activity of producing arefined lithium compounds, including feedstock costs (either from internal sources measured using the all-in sustaining cost of production (site operating plus other costs, as defined above), refining, on-site general and administrative costs and selling expenses. It does not include 7 costs associated with corporate-level administrative expenses.

Outstanding Scoping Study Results Note: Mineral Resources of 16.2Mt @ 1.12% Li2O comprises Indicated Mineral Resources of 8.5Mt @ 1.15% Li2O and Inferred Mineral Resources of 7.7Mt @ 1.09% Li2O. 8

Positive Impact of By-Products Strong local markets for quartz, feldspar and mica Imports represent large market sharedue to US mine depletions By-products were a large business forpast lithium producers in NC Initial offtake conversations underwaywith large customers Price Forecasts for By-Products (US$/tonne) By-product Annual Volume Assumed Average CSA Global Indicative (tpy) Sales Price (US$/t) Price Range (US$/t) Markets Quartz 99,000 $100 $70-$100 Low-iron glass including solar panel cover glass and others,industrial ceramics. Feldspar 125,000 $75 $75-$85 (chips); $130 (powder) Glass, frit, and industrial ceramics. Mica 15,500 $50 $270-$350 Specialty paints including automotive, filler uses, joint-compound. 9

Upside Opportunity - Potential Project Life Extension Drilling out the Exploration Target In addition to the maiden Mineral Resource estimate anew Exploration Target of 4.5 to 5.5 million tonnes at agrade of between 1.10% and 1.20% Li2O has beenestimated by CSA Global within the Core Property. Thepotential quantity and grade of this Exploration Targetis conceptual in nature. There has been insufficientexploration to estimate a Mineral Resource and it isuncertain if further exploration will result in theestimation of a Mineral Resource. Consolidating Land on the TSB Current package of 1,200 acres Drill targets on Core, Sunnyside and Central Ongoing conversations with other landowners 10

Staged Development to Minimize Dilution Spodumene Mine &Concentrate Financing (2019/20) US$130 million Sources: • Offtake / Pre-Payments • Project Finance • Streaming • By-Product Monetization • Equity Lithium Hydroxide ChemicalPlant Financing (2022/23) US$100 - US$150 million Sources: • Strategic JV Partner • Offtake / Prepayment • US Corporate Debt Spodumene concentrate cash flows allow Piedmont to: 1) Build a cash balance of US$100+ million before beginning construction of the LiOH Plant 2) Build operating cash flow which can support access to the low- cost US corporate debt market Projected Operating Cash Flow (US$ million) 217 199 195 196 50 - 2020 2021 168 136 122 93 98 40 114 75 81 7758 2022 2023 2024 2025 2026 131 64 2027 114 82 2028 189 124 65 2029 185 124 61 2030 Incremental Integrated LiOH Cashflow Spodumene Concentrate Cashflow 11

Rapid Development Timeline 2018 2019 2020 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Resource Scoping Study By-Products Pilot Plant Met Concentrate Offtake Negotiation Prefeasibility Study Chemical Plant Partner Negotiations Feasibility Study PermitSubmissions Technical Consultants Construction Decision Mine / Concentrator Construction & Commissioning Chemical Plant Engineering 12

Valuation Considerations Lithium developers down 45% ytd ‘Supply’ and ‘China spot’ themes over-wrought PLL trading at sharp discount to peers Valuation not reflective of A$1.25bb DCFand A$330mm steady-state EBITDA potential Lithium Equities Dislocated from Physical Lower Commodity Price/ Higher Commodity Price/ Lithium Peer Market Cap (A$ millions) 624 505 427 434 338 87 PLL TAW AJM GSC KDR NMX Lithium Peer Multiple of NAV 0.99 0.90 Higher Equities YTD Commodity Price -30% -20% -10% 25% Oil 0% 0% 10% Higher Equities 0.74 0.65 20% 30% 0.77 Copper Lower Commodity Price/Lower Equities Gold -25% Lithium Cobalt -50% -75% 0.20 Higher Commodity Price/Lower Equities PLL GXY TAW KDR PLS AJM 13

Corporate Snapshot Piedmont Lithium Limited Senior Management Updated 0.25 Appointments Scoping Study Name Shares outstandingADRs effective Share price2 (ASX:PLL)ADR price1,2 (Nasdaq:PLLL) Market capitalization2Average Daily Trading Value Cash (@ June 30, 2018) 559.0 mm 0.20 5.59 mm 0.15 A$0.15 US$11.00 0.10 A$83.9 mm 0.05 5 A$100,000 - A$9.8 mm - CEO Appointed Change to Piedmont A$16 millionPlacement NASDAQ Listing Maiden Resource ASX Share Price (A$) Daily Volume (million) Jul 17 Sep 17 Nov 17 Jan 18 Mar 18 May 18 Jul 18 Sep 18 Key Shareholders Board of Directors Directors 14.1% Ian Middlemas Australia Chairman AustralianSuper Pty Ltd 7.8% Keith D. Phillips USA CEO Anastasios Arima USA Executive Director Research Coverage Jeff Armstrong USA Director Jorge Beristain USA Director Levi Mochkin Australia Director 1 100 Ordinary Shares per ADR 2 As at September 14, 2018 14

Disclaimers Cautionary Statements and Important Information This presentation does not constitute or form part of any offer to sell, or solicitation of any offer to buy, any securities in the United States or any other country. This presentation may not form the basis of anycontract or commitment whatsoever with any person. Distribution of this presentation may be restricted by applicable law. This presentation has been prepared by Piedmont Lithium Limited (“Piedmont”) asa summary only, and does not contain all information about Piedmont’s assets and liabilities, financial position and performance, profits and losses, prospects, and the rights and liabilities attaching toPiedmont’s securities. Any investment in Piedmont should be considered speculative and there is no guarantee that they will make a return on capital invested, that dividends would be paid, or that there willbe an increase in the value of the investment in the future. Piedmont does not purport to give financial or investment advice. No account has been taken of the objectives, financial situation or needs of anyrecipient of this presentation. Recipients of this presentation should carefully consider whether the securities issued by Piedmont are an appropriate investment for them in light of their personalcircumstances, including their financial and taxation position. Forward Looking Statements This presentation contains forward-looking statements within the meaning of securities legislation in Australia and the United States, including statements regarding exploration and development activities;plans for Piedmont’s mineral projects; projections of market demand and lithium prices; statements about the timing and amount of resource declarations; and statements about the timing and ability tocomplete scoping studies and feasibility studies. Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause actual events, results, performance or achievements to be materially different fromevents, results, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others, the risk that we will be unable to commercially extract mineraldeposits, that our properties may not contain expected reserves, risks and hazards inherent in the mining business (including risks inherent in developing mining projects, environmental hazards, industrialaccidents, weather or geologically related conditions), uncertainty about our ability to obtain required capital to execute our business plan, our ability to hire and retain required personnel, changes in themarket prices of lithium, changes in technology or the development of substitute products, the uncertainties inherent in exploratory, developmental and production activities, including risks relating topermitting and regulatory delays, uncertainties inherent in the estimation of lithium resources, risks related to competition, as well as other uncertainties and risk factors set out in filings made from time to timewith the Australian Stock Exchange and the U.S. Securities and Exchange Commission, including our most recent Form 20-F. Actual events, results, performance and achievements could vary significantlyfrom the estimates presented in this presentation. Readers are cautioned not to put undue reliance on forward-looking statements. We disclaim any intent or obligation to update publicly such forward-looking statements, whether as a result of new information, future events or otherwise. Additionally, we undertake no obligation to comment on analyses, expectations or statements made by third parties inrespect of Piedmont, its financial or operating results or its securities. Cautionary Note to United States Investors Concerning Estimates of Measured, Indicated and Inferred Resources The information contained in this presentation has been prepared in accordance with the requirements of the securities laws in effect in Australia, which differ from the requirements of U.S. securities laws. Theterms "mineral resource", "measured mineral resource", "indicated mineral resource" and "inferred mineral resource" are Australian terms defined in accordance with the 2012 Edition of the Australasian Codefor Reporting of Exploration Results, Mineral Resources and Ore Reserves (the “JORC Code”). However, these terms are not defined in Industry Guide 7 ("SEC Industry Guide 7") under the U.S. Securities Act of1933, as amended (the "U.S. Securities Act"), and are normally not permitted to be used in reports and filings with the U.S. Securities and Exchange Commission (“SEC”). Accordingly, information containedherein that describes Piedmont’s mineral deposits may not be comparable to similar information made public by U.S. companies subject to reporting and disclosure requirements under the U.S. federalsecurities laws and the rules and regulations thereunder. U.S. investors are urged to consider closely the disclosure in Piedmont’s Form 20-F, a copy of which may be obtained from Piedmont or from theEDGAR system on the SEC’s website at http://www.sec.gov/. Competent Persons Statements The information in this presentation that relates to Exploration Results is extracted from the Company’s ASX announcements dated August 23, 2018, July 19, 2018, June 14, 2018, June 7, 2018, May 17, 2018,May 10, 2018, April 9, 2018, 4 April 2018, 15 March 2018, 1 December 2017, 2 November 2017, 27 September 2017, 23 May 2017, 3 April 2017, and 18 October 2016 which are available to view on theCompany’s website at www.piedmontlithium.com. The information in this presentation that relates to Exploration Targets and Mineral Resources is extracted from the Company’s ASX announcement datedJune 14, 2018 which is available to view on the Company’s website at www.piedmontlithium.com. The information in this presentation that relates to Metallurgical Testwork Results is extracted from theCompany’s ASX announcements dated September 4, 2018 and July 17, 2018 which are available to view on the Company’s website at www.piedmontlithium.com. The information in this presentation thatrelates to Process Design, Process Plant Capital Costs, and Process Plant Operating Costs is extracted from the Company’s ASX announcements dated September 13, 2018 and July 19, 2018 which areavailable to view on the Company’s website at www.piedmontlithium.com. The information in this presentation that relates to Mining Engineering and Mine Schedule is extracted from the Company’s ASXannouncements dated September 13, 2018 and July 19, 2018 which are available to view on the Company’s website at www.piedmontlithium.com. Piedmont confirms that: a) it is not aware of any new information or data that materially affects the information included in the original ASX announcements; b) all material assumptions and technicalparameters underpinning Mineral Resources, Exploration Targets, Production Targets, and related forecast financial information derived from Production Targets included in the original ASX announcementscontinue to apply and have not materially changed; and c) the form and context in which the relevant Competent Persons’ findings are presented in this report have not been materially modified from theoriginal ASX announcements. Exploration Target The Exploration Target is based on the actual results of Piedmont’s previous drill programs. To determine potential tonnage and grade ranges at the deposit, Li2O assay values and density values from drillinghave been applied to the volume estimates. For the 80% of assays within pegmatite models that are above a 0.4 % Li2O cut off, an average grade of 1.10 % Li2O is estimated. For the 70% of assays that areabove a 0.6% Li2O cut off, an average grade of 1.20 % Li2O is estimated. Applying these assay frequency proportions to the modelled volumes outside the Mineral Resource results in estimated volume rangesfrom 1.75 million cubic meters to 2 million cubic meters for spodumene bearing pegmatite with economically interesting grades. A density value of 2.71 g/cm3 is applied to derive tonnage values. Using thismethodology an Exploration Target of between 4.5 to 5.5 million tonnes at a grade of between 1.10% and 1.20% Li2O is approximated for the Piedmont Lithium Project deposit. The potential quantity andgrade of this Exploration Target is conceptual in nature, there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a MineralResource. 15