Norsk Teknisk Porselen Products

Norway

Hivolt Power System

China

Allied Insulators

United Kingdom

Pingxiang Huaci Insulators Group Co. Ltd.

China

Global Insulator Group

Estonia

UMEK Group, LLC

Russia

Sediver

France

Newell-PSN

United States

Yiwu Sasun Electrical Co.,Ltd.

China

Electroporcelana Gamma S.A.S.

Colombia

La Granja Insulators

Spain

Hubbell Power Systems

United States

MacLean Power Systems

United States