Exhibit 21.1

 

List of Subsidiaries of Atkore International Holdings Inc.

 

Entity
Name

 

Jurisdiction of
Incorporation

 

D/B/A
(Jurisdiction)

Abahsain Cope Saudi Arabia Limited

 

Saudi Arabia

 

 

ACN 083 263 076 Pty Limited

 

Australia

 

 

Acroba S.A.S.

 

France

 

 

AFC Cable Systems, Inc.

 

Delaware

 

Monogram Metals (New Jersey)

Allied Luxembourg S.a.r.l.

 

Luxembourg

 

 

Allied Metal Products (Changshu) Co., Ltd.

 

China

 

 

Allied Products UK Limited

 

United Kingdom

 

 

Allied Switzerland GmbH

 

Switzerland

 

 

Allied Tube & Conduit Corporation

 

Delaware

 

American Tube and Pipe Company (Arizona; Indiana)
Custom Tube Fabricators (Indiana)
Gem Fabrication (Texas; Washington; Indiana; North Carolina)
Allied Specialty Products (Indiana)
Allied Studco (Colorado)

Atkore Construction Technologies NZ Limited

 

New Zealand

 

 

Atkore Foreign Holdings Inc.

 

Delaware

 

 

Atkore Holding IX (Denmark) Aps

 

Denmark

 

 

Atkore International (NV) Inc.

 

Nevada

 

 

Atkore International CTC, Inc.

 

Arkansas

 

 

Atkore International, Inc.

 

Delaware

 

 

Atkore Metal Products Pte Ltd.

 

Singapore

 

 

Columbia-MBF Inc.

 

Canada

 

Columbia-MBF (Ontario)

Electrostrut Australia Pty Limited

 

Australia

 

 

Georgia Pipe Company

 

Georgia

 

 

Kalanda Enterprises Pty Limited

 

Australia

 

 

Kral Steel Limited

 

Bermuda

 

 

Samuel Booth & Company Limited

 

United Kingdom

 

 

Swan Metal Skirtings Pty Limited

 

Australia

 

 

TKN, Inc.

 

Rhode Island

 

 

Tyco Dinaço Indústria e Comércio de Ferro e Aço Ltda.

 

Brazil

 

 

Unirax Limited

 

United Kingdom

 

 

Unistrut (New Zealand) Holdings Pty Limited

 

Australia

 

 

Unistrut Australia Pty Limited

 

Australia

 

 

Unistrut Canada Limited

 

Ontario

 

 

Unistrut Chile Comercial E. Industrial Limitada

 

Chile

 

 

Unistrut Europe Limited

 

United Kingdom

 

 

Unistrut Holdings Limited

 

United Kingdom

 

 

Unistrut International Corporation

 

Nevada

 

 

Unistrut International Holdings, LLC

 

Delaware

 

 

Unistrut Limited

 

United Kingdom

 

 

WPFY, Inc.

 

Delaware