Conzzeta has reported that it has completed the sale of Schmid Rhyner, which was announced on December 20, 2019. The business unit has been sold to the specialty chemicals group Altana, headquartered in Wesel, Germany. The change of control took place on February 28, 2020, with the corresponding deconsolidation.

Jakob Rohner, CEO of Schmid Rhyner, therefore leaves the Conzzeta Executive Committee.