About Our Company
We at HJS SA
At HJS Emission Technology South Africa (HJS SA), we are proud to bring world-class German engineering and innovation to the global industry. Backed by the expertise of HJS Emission Technology GmbH & Co. KG, we specialize in advanced OEM exhaust gas treatment solutions that reduce harmful diesel emissions and contribute to cleaner, safer environments. These solutions include Diesel Particulate Filters (DPFs), Catalytic Converters (DOCs), and exhaust aftertreatment systems.
HJS is a proudly family-managed company that combines global technology with local commitment and industry needs. Our growing team reflects the diversity and spirit of South Africa.
With decades of experience in emission control, our team develops and supplies cutting-edge systems for the reduction of diesel particulate matter (DPM) and other pollutants. From mining vehicles to industrial machinery, we tailor our emission and exhaust solutions to meet strict safety, health, and environmental standards.
HJS SA is more than just a technology provider—we’re a responsible partner in sustainable development and saving lives. We’re building a cleaner future—one system at a time.
Clean air is our mission.
What Constitutes us
Environment and health protection has a fixed place in our guiding principles in the ethical concepts of our company, and is also the motivation for our actions. We at HJS Emission Technology, with headquarters in Menden in Sauerland, are a leading provider of exhaust gas technology. For more than 40 years, we have taken responsibility for the future of our company.
- Innovation
- Sustainability
- Flexibility
- Quality
German Environmental Prize
In 2003 HJS received the German Environmental Prize for the development of the diesel particle filter on sintered metal base – the Sintered Metal Filter (SMF®).
Land of ideas
The initiative “Germany – Country of ideas” has distinguished HJS with the development of the efficient diesel particle filter (DPF®) on sintered metal base as a “Selected Site 2006”.
MAN Awards
HJS Emission Technology wurde 2012 mit dem “MAN Truck & Bus Supplier Award” ausgezeichnet.
