ALTANA, a chemical company, agreed to acquire a 82.6% stake in Von Roll, a Swiss industrial group. Financial terms were not disclosed. “Being part of the ALTANA Group opens up attractive opportunities for Von Roll to further expand its successful business development of recent years. The products, activities, and global presence of the two companies complement each other ideally. By combining our innovative strength, we can drive technological change even more strongly with our innovative solutions," Christian Hennerkes, Von Roll CEO.