Electroporcelana Gamma S.A.S.

Colombia

Norsk Teknisk Porselen Products AS

Norway

Zapel S.A.

Poland

Allied Insulators

United Kingdom

Sinoma Jiangxi Insulator and Electricity Co,. Ltd

China

Dalian Insulator Group T&D Co., Ltd

China

Newell (A PGC Company)

United States

Modern Insulators

India

PPC Insulators

Austria

Hivolt Power System

China

PFISTERER

Germany

LAPP Insulators GmbH

Germany