Sanyou Corporation Limited engages in the research and development, manufacture, and sale of relays and current transformers in China. It provides magnetic latching relays, general power relays, high voltage DC relays, new energy relays, photovoltaic relays, automotive relays, plug in choke, and signal relays, as well as inductor products that are used in home appliances, smart meters, industrial control, smart homes, communication facilities, automotive manufacturing, new energy applications, photovoltaic applications, and AI solutions. The company also offers transformer industry solutions, which includes metering, digital display meter, one-close type, relay protection, motor protection, and residual current transformers. The company was incorporated in 2008 and is headquartered in Dongguan, China.