SPRING, Texas–(BUSINESS WIRE)–Perma-Pipe International Holdings, Inc. (Nasdaq: PPIH) today announced the notification of Chief Executive Officer David Mansfield to retire and the appointment of Saleh Sagr as President. Mr. Mansfield’s decision to retire follows a highly successful tenure as CEO, during which the Company experienced significant prosperity, with notable improvements in both profitability and share price. Under Mr. Mansfield’s leadership, the Company significantly increased its