Piedmont Lithium Ltd. appointed Patrick Brindle, David Buckley and Bruce Czachor as senior officers of the company. Brindle joined Piedmont as vice president-project management. He most recently worked as vice president of engineering for DRA Taggart. Buckley is joining Piedmont as vice president–chief process engineer. Most recently, he was chief process engineer of Critical Elements Corp. Czachor is joining Piedmont as vice president–general counsel. He is a former partner of major international law firm Shearman & Sterling.