Who we are

What we do

SEC delivers air pollution solutions to four global industries:


Our product portfolio includes DeNOx SCR catalyst (coated, extruded honeycomb and plate type), oxidation catalysts and catalytic converters, and diesel particulate filter technology. Johnson Matthey SEC provides excellent customer service and product surveillance to ensure guaranteed performance over the lifetime of our products.

Our structure

Johnson Matthey SEC is part of the larger Emission Control Technologies (ECT) Division. We collaborate to bring out the benefits of our wide range of experience and expertise across divisions.