Forward Looking Statements This presentation contains forward-looking
statements within the meaning of or as described in securities legislation in the United States and Australia, including statements regarding exploration, development, construction and production activities of Sayona Mining, Atlantic Lithium
and Piedmont Lithium; current plans for Piedmont’s mineral and chemical processing projects; Piedmont’s potential acquisition of an ownership interest in Ewoyaa; and strategy. Such forward-looking statements involve substantial and known
and unknown risks, uncertainties and other risk factors, many of which are beyond our control, and which may cause actual timing of events, results, performance or achievements expressed or implied by the forward-looking statements. Such risk
factors include, among others: (i) that Piedmont, Sayona Mining or Atlantic Lithium may be unable to commercially extract mineral deposits, (ii) that Piedmont’s, Sayona Mining’s or Atlantic Lithium’s properties may not contain expected
reserves, (iii) risks and hazards inherent in the mining business (including risks inherent in exploring, developing, constructing and operating mining projects, environmental hazards, industrial accidents, weather or geologically related
conditions), (iv) uncertainty about Piedmont’s ability to obtain required capital to execute its business plan, (v) Piedmont’s ability to hire and retain required personnel, (vi) changes in the market prices of lithium and lithium products,
(vii) changes in technology or the development of substitute products, (viii) the uncertainties inherent in exploratory, developmental and production activities, including risks relating to permitting, zoning and regulatory delays related to
Piedmont’s projects as well as the projects of our partners in Quebec and Ghana, (ix) uncertainties inherent in the estimation of lithium resources, (x) risks related to competition, (xi) risks related to the information, data and projections
related to Sayona Mining or Atlantic Lithium, (xii) occurrences and outcomes of claims, litigation and regulatory actions, investigations and proceedings, (xiii) risks regarding our ability to achieve profitability, enter into and deliver
product under supply agreements on favorable terms, our ability to obtain sufficient financing to develop and construct our projects, our ability to comply with governmental regulations and our ability to obtain necessary permits, and (xiv)
other uncertainties and risk factors set out in filings made from time to time with the U.S. Securities and Exchange Commission (“SEC”) and the Australian Securities Exchange, including Piedmont’s most recent filings with the SEC. The
forward-looking statements, projections and estimates are given only as of the date of this presentation and actual events, results, performance and achievements could vary significantly from the forward-looking statements, projections and
estimates presented in this presentation. Readers are cautioned not to put undue reliance on forward-looking statements. Piedmont disclaims any intent or obligation to update publicly such forward-looking statements, projections and
estimates, whether as a result of new information, future events or otherwise. Additionally, Piedmont, except as required by applicable law, undertakes no obligation to comment on analyses, expectations or statements made by third parties in
respect of Piedmont, its financial or operating results or its securities. Qualified Persons Statement We have reported mineral reserves, which were prepared in accordance with Regulation S-K Item 1300 (as promulgated by the SEC, “S-K
1300”) and the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the “JORC Code”) (as required by the ASX), in connection with our exploration and evaluation activities. As of
December 31, 2022, we reported 18.3 million metric tons of probable mineral reserves at a grade of 1.10% Li2O. We issued our first mineral resource estimate pursuant to S-K 1300 and the JORC Code on October 21, 2021 and have not finalized any
subsequent estimates. The proven and probable reserve figures presented herein are estimates based on information available at the time of calculation. The mineral resource figures presented herein are estimates based on information
available at the time of calculation and do not include that portion of our mineral resources that been converted to proven and probable reserves as shown above, as they are reported exclusive of mineral reserves. We have reported mineral
resources, prepared in accordance with S-K 1300, as part of our exploration and evaluation activities. As of December 31, 2022, we have reported 25.89 million metric tons of mineral resources, exclusive of mineral reserves, at a grade of
1.06% Li2O. An initial Technical Report Summary with respect to our estimated mineral reserves was filed as an exhibit to our Transition Report for the six-month period ending December 31, 2021. An Amended Technical Report Summary, dated
April 20, 2023 (the “Amended TRS”), was filed as Exhibit 96.3 to our most recent Form 10-K/A to include certain information as required by S-K 1300. Key assumptions and parameters relating to our estimates of mineral reserves and resources
are discussed in Sections 1.9 and 1.10 of the Amended TRS. We intend to publish reserves annually and recalculate reserves if any new significant changes are expected, taking into account metal prices, changes to estimates of future
production and costs, divestments and depletion, as well as any acquisitions and additions. As required by ASX Listing Rules, Piedmont confirms that: a) it is not aware of any new information or data that materially affects the information
included in our most recent form 10-K/A ; b) all material assumptions and technical parameters underpinning mineral reserves, mineral resources, production targets, and related forecast financial information derived from production targets
included in our form 10-K/A continue to apply and have not materially changed; and c) the form and context in which the relevant Qualified Persons’ findings are presented in this report have not been materially modified from the Amended
TRS. Disclaimers