Regulatory Approvals Propel Piedmont-Sayona Merger Toward Mid-2025 Completion Piedmont Lithium and Sayona Mining have secured key regulatory clearances in the U.S. and Canada for their planned merger. With approvals from the Investment Canada Act, Hart-Scott-Rodino Act, and CFIUS, the companies are now preparing for shareholder votes. The transaction aims to close by mid-2025, pending final approvals.123