Meister International

USA

Allied Insulators

United Kingdom

Nanjing Electric Insulator Co.,Ltd

CHINA

Hivolt Power System

China

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

India

Aditya Birla Power Composite Limited (ABPCL)

India

Zapel S.A.

Poland

Norsk Teknisk Porselen Products AS

Norway

Electroporcelana Gamma S.A.S.

Colombia