# EDGAR Filing Document

**Accession Number:** 0000914122
**File Stem:** 9999999995-26-002134
**Filing Date:** 2026-6
**Character Count:** 1581
**Document Hash:** 67d01e9010b738e8f1ad9c42105f7246
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-002134.hdr.sgml**: 20260629

**ACCESSION NUMBER**: 9999999995-26-002134

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260626

**DATE AS OF CHANGE**: 20260629

**EFFECTIVENESS DATE**: 20260626

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Perma-Pipe International Holdings, Inc.
- **CENTRAL INDEX KEY:** 0000914122
- **STANDARD INDUSTRIAL CLASSIFICATION:** INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 363922969
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0131

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-296640
- **FILM NUMBER:** 261131105

**BUSINESS ADDRESS:**
- **STREET 1:** 25025 I-45
- **STREET 2:** SUITE 200
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380
- **BUSINESS PHONE:** 2815986222

**MAIL ADDRESS:**
- **STREET 1:** 25025 I-45
- **STREET 2:** SUITE 200
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFRI INC
- **DATE OF NAME CHANGE:** 19970402

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MIDWESCO FILTER RESOURCES INC
- **DATE OF NAME CHANGE:** 19970402

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** June 26, 2026

**Time:** 16:00:00

**Form Type:** S-3

---

**CIK:** 0000914122

**Company Name:** Perma-Pipe International Holdings, Inc.

**File Number:** 333-296640