Exhibit 99.1 COMPANY: Perma-Pipe International Holdings, Inc. CONTACT: David Mansfield, President and CEO Perma-Pipe Investor Relations (847) 929-1200 investor@permapipe.com Perma-Pipe International Holdings, Inc. Announces Fourth Quarter and Fiscal 2023 Financial Results • The Company generated net sales of $40.2 million for the quarter and $150.7 million for the year • Income before income taxes of $3.2 million for the quarter and $9.9 million for the year • Net income of $8.6 million for the quarter and ...