Changshu Guorui Technology Co., Ltd. researches, develops, produces, and sells marine and marine engineering electrical and automation systems in China. Its products include circuit breakers, film capacitors, low- and medium-voltage switchboards and controls, power supplies, box counters, monitoring alarms, navigation controls, valve drives, automation equipment, and system integration products. The company also offers software customization, simulation design, circuit board function customization, various testing services, sheet metal processing, machining, material surface treatment, and after-sales service. Formerly known as Changshu Ruite Electric Co., Ltd., it changed its name to Changshu Guorui Technology Co., Ltd. in October 2020, was founded in 1993, and is based in Changshu, China.