Taizhou Threeway Vehicle Catalytic Converter Co., Ltd. (hereinafter referred to as “Threeway”) was founded in 2007 and successfully completed its shareholding system reform in August 2023. As a national high-tech enterprise, Threeway is deeply engaged in the research, development, production, and sales of automotive exhaust after-treatment devices. It has been accredited as a provincial-level "Specialized, Refined, Distinctive, and Innovative" enterprise and has established a provincial-level research and development center dedicated to vehicle exhaust purification technology.

The companys products are primarily engineered to effectively control vehicle exhaust noise and emissions pollution. The product portfolio encompasses a comprehensive range of universal and direct-fit catalytic converters, including automotive three-way catalytic converters, diesel particulate filters, NOx selective reduction catalysts, and exhaust silencers.

Through years of intensive R&D and development, Threeway has amassed multiple independent intellectual property rights and mastered core technologies such as "nano-precious metal catalysts" and "controllable coating processes." All of the companys products fully comply with the stringent emission standards of regions like the United States and the European Union. Notably, Threeway is among the earliest domestic manufacturers in China to have officially received certification from the United States Environmental Protection Agency (EPA). At present, the company offers 1,200 direct-fit catalytic converters, covering over 8,000 vehicle models in use, with a particular focus on many popular overseas models in recent years.

Threeway has multiple well-known brand series, including "THREE-WAY" and "TWCAT," with more than 80% of its products being exported to various countries and regions around the globe.

With rapid development momentum and boundless opportunities, Threeway adheres to the entrepreneurial philosophy of "cultivating integrity, delivering excellence, and achieving global prominence." The company is committed to continuous innovation, keeping a close eye on industry trends. In addition, it adheres to the business philosophy of "ensuring survival through quality, winning customers with service, and driving upgrading via management" to firmly maintain its competitive edge in the global market.