TDG.TDG was founded in 1984 and operates multiple holding companies and equity-participated subsidiaries. It stands as China's first publicly listed company directly controlled by natural persons. The company has established four major business segments: electronic materials, electronic modules, intelligent equipment, and green energy. Its operations span the entire electronic information materials industry chain, integrating R&D, manufacturing, and sales as a national high-tech enterprise. Key products include: electronic materials, electronic modules, intelligent equipment, and green energy solutions.