About 3 Way Catalyst
3 Way Catalyst has over 11 years of experience as a manufacturer and supplier of exhaust solutions, including catalytic converters (TWC/SCR/VOC), diesel particulate filters (DPF), gasoline particulate filters (GPF), diesel catalysts (DOC), high-performance mufflers, silencers, and complete exhaust systems. We provide OEM and ODM services, with custom sizes and designs to ensure precise fit and peak efficiency.
Who We Are
China's leading manufacturer of catalytic converters & emission control tech.
3waycatalyst – A brand of Hangzhou Fengxiang Technology Co., Ltd. Founded in 2013 in Shandong, China, is a leading innovator in emission control technology. With core R&D capabilities and proprietary patents, we design and manufacture a comprehensive range of exhaust solutions, including catalytic converters (TWC/SCR/VOC), DPFs, GPFs, DOCs, high-performance mufflers, silencers, and complete exhaust systems.
For over 11+ years, our commitment to AI-driven design, rapid prototyping, and precision manufacturing has fueled global expansion. 3 Way Catalyst products – renowned for superior catalytic efficiency, durability, and competitive value – are trusted by automotive and industrial clients across Asia, North America, and Europe.
Serving aftermarket, OEM, and industrial sectors, we leverage advanced ceramic substrates and scientific coatings to deliver reliable, eco-compliant solutions. We relentlessly innovate to create cleaner air for global communities.
01.
Pioneering Catalyst & Emissions Technology Leadership
Over 10+ years of dedicated R&D, we’ve built a strong portfolio of core technologies and patents. This drives continuous innovation in catalytic converter design, coating formulations, and emission control solutions, ensuring superior performance and efficiency globally.
02.
Comprehensive Emission Control Solutions Portfolio
We offer a full spectrum of exhaust and emission products: catalytic converters (TWC), SCR & DOC catalysts, DPFs, mufflers, silencers, and complete exhaust systems. Our solutions deliver unmatched performance for diverse automotive and industrial applications.
03.
Proven Global Manufacturing & Reach
Our high-quality products are trusted by customers around the world and serve markets on all continents. With factories strategically located in Asia and North America, we ensure reliable supply and highly competitive prices, helping us to continue to expand our global business.
04.
Deep Application Expertise Across Sectors
We have extensive expertise in the automotive (original and aftermarket), industrial engines and power generation sectors. A deep understanding of industry-specific emission challenges enables us to provide precisely optimized solutions and tailored support.
05.
Global Supply Chain Excellence & Rigorous QC
We leverage a carefully managed global supply chain of high-quality materials (such as ceramic substrates and precious metals) and implement a strict multi-stage quality control system to ensure the reliability, durability and compliance of each component and end product.
06.
Agile Engineering & Future-Focused Innovation
Our advanced rapid prototyping and AI-assisted design capabilities enable rapid customization and adjustments. We continuously integrate advanced materials and manufacturing tech, ensuring partners stay ahead of regulation shifts through sustainable, upgrade-ready investments.
2013 ~ Founding Vision
Founded in a humble workshop with a core team of emission control experts, we focused on perfecting emission control technology and early breakthroughs in three-way catalytic converters laid the foundation for future efficient solutions.
~ 2015 Start Global Expansion
Our first overseas order – an order of 500 catalysts for a European automotive parts distributor – validated the global market demand. By 2016, three-way catalytic converters were exported to more than 12 countries, becoming a trusted emission solution partner.
~ 2018 Technology Leap
Adopting rapid prototyping (72-hour delivery) and patented coating technology (patent number: CN201810293.X). Adoption by [major Chinese EV manufacturers] and North American truck OEMs solidifies our reputation in engineering.
~ 2020 Dual Continent Manufacturing
Opened a factory in North America to serve the local automotive and off-highway vehicle markets. Shandong headquarters expanded to 15,000 square meters, and annual production capacity of catalytic converters (TWC/SCR/VOC) and (DPF) systems increased to more than 1.8 million sets.
~ 2023 AI-driven sustainability
Introduced MES systems to provide real-time diagnostics and predictive maintenance for vehicles. Won [Industry Award] for its volatile organic compound (VOC) emission reduction solutions in industrial applications.
2024+ ~ Future focus
Advancing zero-carbon manufacturing. Committed to reducing global mobile emissions by 15 million tons/year by 2030 through cooperation with [Auto Alliance].













Why Choose Us
We are the leading factory for Catalytic Converter & Exhaust Systems in China.
Our main markets are North America, Europe and Southeast Asia, and we deliver more than 1.8 million emission control devices to these regions every year. Most of our catalytic converters, diesel particulate filters (DPF) and exhaust system assemblies meet global standards and hold certifications such as CE, RoHs, IATF, and emission compliance certifications for specific regions.



