Overview
TDG (Stock Code: 600330) was founded in 1984, has a number of holding companies and shareholding companies. As the first listed company held by natural person in China, TDG focuses on R&D, manufacturing and sales, and has been recognized by Chinese government as a national key high-tech enterprise.
Since 2010, TDG has invested in the sapphire industry, specializing in the research and development, manufacturing and sales of sapphire crystal materials. TDG established sapphire industrial bases in Haining, Zhejiang and Yinchuan, Ningxia, with a complete industrial chain from sapphire crystal growth to wafer processing. The products have covered 2-12 inch sapphire wafers, optical parts of various specifications, and can be customized according to customer needs.Now TDG’s Sapphire Products are widely used in LED lighting, consumer electronics and other fields, and have developed into one of the leaders in the global sapphire industry in terms of scale and R&D innovation capabilities.