Piedmont Lithium Project Portfolio

GHANA Atlantic Lithium May Provide Additional High-Quality SC6 to Support North American LiOH Operations HIGHLIGHTS ■ Piedmont Interest39 ☐ ■ 9.4% ALL shares = $24mm ☐ Earning 50% of Ghanaian lithium portfolio ■ ALL market cap = $254mm ■ Offtake - 50% of life-of-mine production at market ■ Mining-friendly jurisdiction ■ ☐ ~70 miles from major port along national highway Efficient transport to Tennessee for hydroxide conversion ■ Coarse-grained spodumene implies ■ low capex DMS flowsheet Adjacent hydroelectric powerlines UPCOMING MILESTONES ▪ Definitive feasibility study 24 ☐ Mining License 2023 MINISTRY OF LANDS AND NATURAL RESOURCES Above: Piedmont COO Patrick Brindle meets with US Ambassador Virginia Palmer and Ghanaian Minister of Lands & Natural Resources Samuel Abu Jinapor ALL FACT SHEET40 Location Business Production PLL Offtake DFS Timing Ghana Spodumene Concentrate 255,000tpy SC6 50% of annual production 2023 $125mm Capex Opex $278/t SC6 After-tax NPV8 $1.33bb After-tax IRR 224% 39. Piedmont owns 56.9mm shares of Atlantic Lithium (AIM: ALL) and has an earn-in agreement for 50% of the Ewoyaa project. Market cap as of April 28, 2023. 40. Production and economics include the use of inferred resources which have a low level of geological confidence and as such we consider them to be at a scoping study level. See Atlantic Lithium AIM announcement "Pre- Feasibility Study Delivers Robust Project Economics" dated September 22, 2022, a copy of which can be found on Atlantic Lithium's website. Refer to cautionary statement on Page 3 of this presentation.

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