Delixi Electric Co., Ltd.
Arteche Lantegi Elkartea SA
Whner GmbH & Co. KG Elektrotechnische Systeme
Huaming Power Equipment Co., Ltd.
Benedict GmbHOberosterreich, Austria
Hubbell Power Systems, Inc.Tennessee, United States
Guizhou Taiyong-Changzheng Technology Co., Ltd.Guizhou, China
Pronutec SAU
Microelettrica Scientifica SpALombardia, Italy
Guizhou Taiyong-Changzheng Technology Co., Ltd.Guizhou Sheng, China