Advanced emissions control for cleaner mobility
Johnson Matthey is a global leader in automotive emissions control technologies, helping vehicle manufacturers reduce harmful pollutants and meet increasingly stringent emissions standards.
Since our first commercial autocatalyst in 1974, we have been at the forefront of catalyst innovation, supporting cleaner air across the automotive industry.
Today, our catalyst systems are used in hundreds of millions of passenger cars, trucks, and buses worldwide, removing nitrogen oxides (NOx), particulate matter (PM), and other harmful emissions at scale.
Supporting today’s engines and tomorrow’s mobility
As the automotive industry transitions towards net zero, effective emissions control remains essential.
We support:
- Gasoline and diesel engines
- Hybrid powertrains
- Heavy-duty and commercial vehicles
While advancing technologies for the future, including hydrogen internal combustion engines and low-emission mobility solutions.
Helping you meet emissions standards with confidence
Driving excellence
Through close collaboration with OEMs, we develop systems optimised for real-world performance. Our solutions are designed to help you:
- Meet and exceed global emissions regulations (Euro 7, EPA, China 6/7)
- Reduce environmental impact
- Lower total cost of ownership
Powering catalyst innovation and PGM expertise
With over 200 years of expertise in precious metals and catalysis, we design highly efficient, durable catalyst systems for demanding automotive applications.
Our technologies maximise performance while minimising the use of critical materials, delivering both environmental and commercial value.
Enabling the world’s first circular economy
JM helped create one of the world’s first circular economies in platinum group metals (PGMs), and today we’re the world’s largest recycler of PGMs. Our PGM extraction and separation processes are so advanced that we can recycle platinum, for example, to a minimum purity of 99.95%.
Not only does an ounce of recycled PGM contain around 50 times less embedded carbon than newly mined PGM, but the more we can recycle and reuse, the less we need to mine in the first place, which would have greater associated social and environmental impacts.
And all our metal-containing catalysts are designed to accelerate chemical reactions using the minimum amount of metals.
Global scale. Trusted delivery.
Our global manufacturing and R&D network provides:
- Realiable, high-quality supply
- Security of supply of critical materials
- Local technical expertise
- Flexibility to scale with demand
- So you can deliver cleaner vehicles—anywhere in the world.
