Electroporcelana Gamma S.A.S.

Colombia

Pingxiang Huaci Insulators Group Co. Ltd.

China

Allied Insulators

United Kingdom

Newell (A PGC Company)

United States

Norsk Teknisk Porselen Products AS

Norway

Hivolt Power System

China

Pingxiang Best Insulator Group Co., Ltd.

CHINA

Sediver

France

Nanjing Electric Insulator Co.,Ltd

CHINA