All products and services

Ammonia slip catalysts (ASC)

Designed to enhance SCR performance, these catalysts achieve greater NOx control in parallel with lower carbon monoxide emissions and minimal ammonia slip.

NOx control systems

Clean air solutions: Johnson Matthey SCR systems prevent air pollution from stationary diesel and natural gas engines for cleaner energy and cleaner air.

SUREOX sulfur resistant oxidation catalyst

Our SUREOX™ catalyst with proprietary washcoat technology designed for reliable durable oxidation performance in the presence of sulfur.

SINOx - HT SCR catalyst

JM offers a high temperature SCR catalyst that can operate under a broad range of temperature conditions.

Oxidation catalyst systems

Our portfolio offers our customers options for catalytic coatings on both metallic and ceramic substrates.

Oxidation catalyst portfolio

Formaldehyde oxidation catalyst

We are a leading supplier of VOC catalyst for the treatment of formaldehyde emissions.  

EPA Tier 4 compliance

Clean air solutions: our integrated SCRT® technology for US EPA Tier 4 diesel engine compliance.