Chaozhou Three-Circle (Group) Co.,Ltd., together with its subsidiaries, engages in the research and development, production, and sale of electronic components in China and internationally. It offers precision ceramic structural components, multilayer chip ceramic capacitors, lead resistors, ceramic ferrules, ceramic sleeves, optical fiber quick connectors, MT ferrules, ceramic exterior parts for mobile, ceramic parts for smart wearable devices, and ceramic covers for fingerprint modules. The company also provides cover glass and metal packaging, SMD ceramic packaging, ceramic wedges, and semiconductor ceramic packaging bases; piezo dispensing valves; and electronic materials, including alumina substrates, aluminum nitride substrates, electronic pastes, solder paste, metalized ceramics, ceramic substrates, ceramic structural parts, and other products. Its products are used in electronics, communications, consumer electronics products, industrial electronic equipment, new energy, and other fields. The company was founded in 1970 and is headquartered in Chaozhou, China.