United under the roof of the internationally active Zertus GmbH are independent subsidiaries that produce and market high-qua ... lity foods. Originating from what was once Europe’s largest sugar refinery, the focus of the Group’s products has mainly been on confectionery and market niches down to the present day. Zertus UK is comprised of the subsidiaries Humdinger, Kinnerton Confectionery, and Lir Chocolates based in the UK and the Republic of Ireland . read more