Indisol S.A.

Portugal

Allied Insulators

United Kingdom

Izoelektro d.o.o.

Slovenia

Modern Insulators

India

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

India

Pingxiang Best Insulator Group Co., Ltd.

CHINA

Meister International

USA

TID Technology Development Co. Ltd.

China

Dalian Insulator Group T&D Co., Ltd

China

Dalian CTC Insulator Company Limited

China

Zapel S.A.

Poland

Zhongrui Electric co.,ltd

China