07 Jun 2018 --- Hamburg-based food and feed ingredients supplier, Stern-Wywiol Gruppe, increased its sales by €56 million (US$66 million) to €520 million (US$613 million) in 2017. With this figure, the company achieved 12 percent growth last year. The development of the group is mainly due to the expansion of its international presence and intensive applications research, according to Stern-Wywiol Gruppe.