Catalytic Converter - Trunett Environmental Tech Co., Ltd acquired the base technology for ceramic honeycomb and Catalytic Converter & Catalyzed Diesel Particulate Filter in the early 1990s.

In the early 1990s, we began to develop Diesel particulate filter (DPF), catalytic converter, Diesel three-way catalyst (DTWC) and Catalyzed diesel particulate filter (CDPF).

At present, our main production factories are located in Chinese mainland, Taiwan,most of them are exported to North America and West Europe.