We performed the following material audit procedures: We obtained a general overview of the activities of the company and of the organisational structure and structure of operations; We conducted interviews with managers in the company to identify and understand relevant systems, processes, and internal controls that facilitate the collection of the information for the reporting with regard to the audited report contents; We inspected the relevant documents at the group, executive board, and management level to assess the awareness for and priority assigned to the topics in the reporting and to understand how progress is monitored; We assessed the risk management and governance processes in terms of sustain ability and a critical evaluation of the depiction in the reporting; We conducted analytical audit procedures at the company level; We conducted site inspections in Vienna (Strauchgasse evidence on performance indicators.