Electroporcelana Gamma S.A.S.

Colombia

Zapel S.A.

Poland

Meister International

USA

ASAsoft (Canada) Inc.

Canada

Dalian CTC Insulator Company Limited

China

Zhongrui Electric co.,ltd

China

Allied Insulators

United Kingdom

Indisol S.A.

Portugal

MacLean Power Systems

United States

Newell-PSN (A Power Grid Components Inc. Company)

United States

K-Line Insulators Ltd.

Canada

Reinhausen Power Composites

Germany