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YARA Environmental Technologies GmbH ( formerly H+H )

Please use our new Homepage   : !!!

at Hargesheim (Germany) designs and provides SCR (Selective Catalytic Reduction) exhaust gas treatment systems for the NOx reduction, delivers special catalysts for the purification of exhaust gases and air, soot filters and offers project related engineering & services.

for more information about the Yara-H+H deal

Dear Customers, dear Friends,

We are proud to announce that H+H Umwelt- und Industrietechnik GmbH will become a wholly-owned subsidiary of Yara International ASA. The deal is clear recognition of the trust and loyalty put into us by our valued customers and all the hard work by the entire H+H team. The past 15 years have been an exciting and eventful journey. We all look forward to continue this journey of growth and innovation at the service of air pollution reduction as part of a strong and growing Yara Environmental Technologies organization.

Thank you again to our valued customers, trusted suppliers and to our competent and dedicated team. We look forward to continue our close cooperation.


Michael Heck, Alexander Hommen, Herbert Römich, Dr. Michael Joisten

Mission Statement

Our aim is to produce and to deliver economically affordable and high quality Catalytic Systems for the treatment of exhaust gases. As a competent partner working close with our customers, we would like to provide an important contribution to our environmental protection.

Attention : New Phone No. Sales_Team: +49 9562 40 420 - 0