Summary of work performed Our limited assurance procedures included, amongst others, the following work: ∂ Assessment of the suitability of the underlying criteria and their consistent application ∂ Inquiries of company’s representatives in Switzerland and Germany who are responsible for collecting, consolidating and calculating the KPIs in order to assess the process of preparing the data, the reporting system, the data capture and compilation methods as well as internal controls to the extent relevant for the limited assurance engagement ∂ Inspection of the relevant documentation of the systems and processes for compiling, analyzing, and aggregating sustainability data and testing such documentation on a sample of basis ∂ Analytical procedures and inspection of documents on a sample basis with respect to the compilation and reporting of quantitative data The procedures performed in a limited assurance engagement vary in nature and timing from, and are less in extent than for, a reasonable assurance engagement.