Sieyuan Electric Co., Ltd. engages in design, research and development, manufacturing, sale, service, and EPC of power transmission and distribution equipment in China and internationally. The company offers transmission and transformation products, such as FACTS, HVDC, High-voltage substation, power transformer, high-voltage switchgear, HV, circuit breaker and disconnector, substation automation, high voltage instrument transformer, high voltage bushing, high voltage power capacitor, and neutral grounding. It also provides distribution and utilization products, including medium-voltage substation, distribution transformer, medium voltage switchgear and circuit breaker, medium voltage power capacitor, distribution automation, and low voltage electrical distribution product and system; and energy storage element and residential ess, as well as utility-scale battery energy storage systems. In addition, the company offers automotive electronics and electrical systems comprising automotive low voltage Li-ion battery, automotive ultracapacitor module, automotive intelligent power distribution, and solutions; and engineering design, equipment procurement, civil construction, installation, and commissioning. Sieyuan Electric Co., Ltd. was founded in 1993 and is headquartered in Shanghai, China.