Wolfram Bergbau und Hütten AG

For one of our main products, malic acid, we are the only manufacturer in Japan, and our ultra-high-purity colloidal silica has established a position as an essential material in precision manufacturing throughout the world.

Since 1977, KUSTAN has stood for competence in plastics and is active worldwide as a company in the field of plant engineering. With qualified, multidisciplinary team at the locations Gelsenkirchen and Rudolstadt we offer the complete power range fro

PAIPE is an Environmental Consulting Company that provides customized solutions to clients’ needs, ranging from analysis and answers to specific environmental problems to implementation of cleaner production systems applying the best available techni