X0306 4 2021-06-11 0000914122 Perma-Pipe International Holdings, Inc. PPIH 0001378560 Norwood D Bryan 6410 W. HOWARD STREET NILES IL 60714 1 Vice President, CFO Common Stock 2021-06-11 4 F 0 1015 7.17 D 20040 D Common Stock 2021-06-14 4 A 0 8842 0 A 28882 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. Restricted shares that vest 1/3 on each of the first three anniversaries of the grant date. /s/ D. Bryan Norwood 2021-06-15