Changyuan Shenrui and Guodian Nanrui are both engaged in the power industry. According to Century New Energy Network, Changyuan Shenrui and Guodian Nanrui both developed in the power industry.

1, Changyuan Shenrui is a wholly-owned subsidiary specializing in relay protection and automation, and a national high-tech enterprise. Formerly known as Shenzhen Nanrui Technology Co., Ltd., it was reorganized and established in 1994 by China Electric Power Department, Electric Power Automation Research Institute and Component Protection and Substation Integrated Automation Research Laboratory. China is the first generation enterprise engaged in scientific research, production and service of microcomputer protection and substation integrated automation engineering.

2. Guodian Nanrui is an overall solution provider of energy Internet with energy and power intelligence as the core, an it enterprise in the field of energy, power and industrial control in China, and an intelligent head enterprise of power.