Leading company in Emission Reduction Technology
As an OEM, HJS SA offers advanced aftertreatment emission solutions, including Diesel Particulate Filters and Catalytic Converters (DOCs), engineered for optimal performance and compliance in modern powertrain systems.
Turn-Key Solutions & Innovative Products
Original Equipment
Jointly with manufacturers, HJS finds solutions for the emission requirements of the future
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Aftermarket
Our HJS products offer initial equipment quality for trade and workshop.
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Retrofit
For subsequent reduction of emissions of pollutants from internal combustion engines, we develop and market products for retrofit.
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Our Products
We guarantee customer-specific product development on the basis of automobile standards (PEP), tailored to specific requirement profiles. Our own catalysis laboratory with synthetic gas test bench enables simple technology screening.
