TDG
Tiantong Holding Co., Ltd. was founded in 1984. It owns a number of holding companies and joint-stock companies. It is the first listed company in China directly controlled by natural persons. The company has currently formed three major business sectors: electronic materials, electronic new energy, and intelligent equipment. Its business covers the upstream and downstream of the electronic information materials industry chain. It is a national high-tech enterprise integrating scientific research, manufacturing, and sales.