Perma-Pipe International Holdings, Inc. - FORM 10-K - EX-21 - EXHIBIT 21

file	filename
EX-32 - EXHIBIT 32 - Perma-Pipe International Holdings, Inc.	ex_222733.htm
EX-31.2 - EXHIBIT 31.2 - Perma-Pipe International Holdings, Inc.	ex_222732.htm
EX-31.1 - EXHIBIT 31.1 - Perma-Pipe International Holdings, Inc.	ex_222731.htm
EX-24 - EXHIBIT 24 - Perma-Pipe International Holdings, Inc.	ex_222730.htm
EX-23 - EXHIBIT 23 - Perma-Pipe International Holdings, Inc.	ex_222729.htm
EX-10.L - EXHIBIT 10.L - 2020 LTIP EQUITY AWARD TEMPLATE UNDER 2017 LTIP PLAN - Perma-Pipe International Holdings, Inc.	ex_239190.htm
10-K - FORM 10-K - Perma-Pipe International Holdings, Inc.	ppih20210131_10k.htm

Exhibit 21

SUBSIDIARIES OF REGISTRANT

MFRI Holdings (B.V.I) Ltd (British Virgin Islands)

Midwesco Filter Resources, Inc. (Delaware corporation)

MM Niles, Inc. (Delaware corporation)

Perma-Pipe, Inc. (Delaware corporation)

Perma-Pipe Canada, Inc. (Delaware corporation)

Perma-Pipe Canada, LTD. (Canada)

Perma-Pipe India Pvt. Ltd. (India)

Perma-Pipe International Co. LLC (Delaware corporation)

Perma-Pipe Middle East FZC (United Arab Emirates)

Perma-Pipe Egypt for Metal Fabrication and Insulation Industries (Perma-Pipe Egypt) S.A.E. (Egypt)

Perma-Pipe Oil Field Services LLC (United Arab Emirates)

Perma-Pipe Saudi Arabia, LLC (Kingdom of Saudi Arabia)

Perma-Pipe QA Limited Liability Company (LLC) (Qatar)

Perma-Pipe Middle East LLC (United Arab Emirates)

Perma-Pipe International Holdings, Inc. - FORM 10-K - EX-21 - EXHIBIT 21 - April 15, 2021