Protektel sp. z o.o.

Poland

MacLean Power Systems

United States

Balestro – Indústria Eletromecânica

Brazil

Wenzhou Yikun Electric

China

Tridelta Meidensha

Germany

EB Rebosio SRL, A Bonomi Group Company

Italy

EC Insulator Jiangxi Co., Ltd.

China

Zhejiang Gaoneng Electric Installation Co., Ltd.

China

Siemens Energy Global GmbH & Co. KG

Germany

TID Technology Development Co. Ltd.

China