Norsk Teknisk Porselen Products AS

Norway

PFISTERER

Germany

Zapel S.A.

Poland

Newell (A PGC Company)

United States

Sinoma Jiangxi Insulator and Electricity Co,. Ltd

China

Pingxiang Best Insulator Group Co., Ltd.

CHINA

Hivolt Power System

China

PPC Insulators

Austria

Insulators & Electricals Company (Prop. Hindusthan Urban Infrastructure Ltd.)

India

LAPP Insulators GmbH

Germany

Electroporcelana Gamma S.A.S.

Colombia

EMCO Industries

Pakistan