Johnson Matthey is a leading supplier of diesel emission control aftertreatment systems to the North American market.

We provide emission control aftertreatment technologies, which reduce EPA and CARB-regulated pollutants.

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Johnson Matthey can provide a full range of technologies which reduce Hydrocarbons (HC), Carbon Monoxide (CO), Particulate Matter (PM) and Nitrogen Oxides (NOx).

Our technologies are available to retrofit a full range of on-road and non-road diesel applications.

For further enquiries please contact us.