X0306 4 2022-06-21 0000914122 Perma-Pipe International Holdings, Inc. PPIH 0001593388 Bosch Wayne 6410 W. HOWARD STREET NILES IL 60714 1 Vice President, CHRO Common Stock 2022-06-21 4 F 0 1066 7.90 D 49799 D The shares of common stock underlying the restricted stock reported as disposed herein were withheld by the issuer in satisfaction of tax withholding obligations associated with the vesting of restricted stock. /s/ Wayne Bosch 2022-06-22