Jiangsu Changyou Environmental Protection Technology
301557
Hefei conver Holding
603409
LIERDA
832149
4
SHENGNAN TECHNOLOGY
837006
5
CHK
831167
The company was founded in 1988 and successfully listed on the Shenzhen Stock Exchange in 2007. In 2020, Zhonghuan Electronics Group, the controlling shareholder of the company, was restructured into a wholly-owned subsidiary of TCL Technology, and TCL Technology became the company's indirect controlling shareholder. The company is mainly engaged in the R&D, production and sales of printed circuit boards (PCBs). The company's product types cover single and double panels, multi-layer boards, high-multi-layer boards, HDI, high-frequency high-speed boards, and thick copper plates.