Zapel S.A.

Poland

Dalian Insulator Group T&D Co., Ltd

China

PLP

USA

Pingxiang Huaci Insulators Group Co. Ltd.

China

Zhongrui Electric co.,ltd

China

Electroporcelana Gamma S.A.S.

Colombia

Wish Power (Thailand) Co. Ltd

Thailand

Meister International

USA

Nanjing Electric Insulator Co.,Ltd

CHINA

Zhejiang Gaoneng Electric Installation Co., Ltd.

China

Norsk Teknisk Porselen Products AS

Norway

Vexila (PTY) Ltd

SOUTH AFRICA