Phase 3 Drilling Completed With Further High Grade Mineralisation Identified

• Piedmont has completed its Phase 3 drill program on the Core property and has received assay results from an additional 26 holes, with high grade mineralisation in all holes including:
• • 23.3m of cumulative thickness of mineralization (non-continuous) across 5 pegmatites which includes high grade intercepts of 5.2m @ 1.30% Li₂O, 7.5m @ 1.37% Li₂O and 5.2m @ 1.58% Li₂O in Hole 18-BD-189
  • 28.5m of cumulative thickness of mineralization (non-continuous) across 4 pegmatites which includes high grade intercepts of 8.4m @ 1.47% Li₂O, 5.2m @ 1.53 Li₂O and 11.4m @ 1.00% Li₂O in Hole 18-BD-220
  • 20.4m @ 1.61% Li₂O of continuous mineralization across 1 pegmatite, including a high-grade zone of 11.0m @ 2.04% Li₂O in Hole 18-BD-228
• Maiden Mineral Resource estimate for the Core property to be announced in the coming weeks
• Hole 18-BD-228 is the thickest single pegmatite to date on the property with over 20 meters of continuous high-grade mineralization (20.4m @ 1.61% Li₂O)
• Exploration drilling on the recently-announced Sunnyside property has commenced and results are expected to be made available in the coming weeks

For the Phase 3 program, the Company has completed 124 holes totalling 21,360 meters on its core property. Fifteen remaining holes from the Phase 3 campaign have assays pending.

Operational efficiencies during the Phase 3 drilling budget allowed the Company to exceed the planned meterage of 20,000 meters by 1,360 meters and will allow for initial drilling on the Sunnyside and Central properties (see Table below).  The necessary state permits have been received and drilling is underway at the Sunnyside Property with one hole completed.  Results of drilling in these exploratory areas will be released in the coming weeks.

Keith D. Phillips, President and Chief Executive Officer, said, "Drilling on the core property is now complete and we look forward to issuing our maiden Mineral Resource estimate in the near future, accompanied by a revised exploration target.  Additionally, we are excited about the exploration drilling that has commenced at Sunnyside and hopeful that we will identify significant resource upside on that property."