Piedmont Lithium Project Portfolio

8 PIEDMONT PROJECT PORTFOLIO Quebec8 Ownership: 25% Piedmont / 75% Sayona Mining Piedmont owns 13.6% of Sayona Mining Ghana 10 Ownership: 50% Piedmont / 50% Atlantic Lithium Piedmont owns 9.4% of Atlantic Lithium Project Authier + NAL Project 11 Ewoyaa Tennessee Ownership: 100% Piedmont Carolina Ownership: 100% Piedmont Project 12 Tennessee Lithium Project 13 Carolina Lithium Location Abitibi, Quebec, Canada Location Cape Coast, Ghana Location McMinn County, TN Location Gaston County, NC Reserves 32.9Mt @ 1.04% Li₂O Reserves 18.9Mt @ 1.24% Li₂O Reserves N/A Reserves 18.3Mt @ 1.10% Li₂O Production Year 1-4: 226,000tpy SC LOM: 190,000tpy SC (113,000tpy to PLL) Production 255,000tpy SC6 (50% to PLL) Production 30,000tpy LiOH Production 30,000tpy LiOH; 242,000tpy SC6 Economics $1.0bb after-tax NPV $80mm capex Economics $1.3bb after-tax NPV $125mm capex Economics $2.5bb after-tax NPV $376mm steady state EBITDA $2.0bb after-tax NPV Economics $459mm steady state EBITDA 8./9./10./11./12./13. See End Notes for corresponding detailed disclosures

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