Within the scope of our assurance engagement, which has been conducted between May and November → Inquiries of employees concerning the sustainability strategy, sustainability principles and sustainability management including the stakeholder dialog of Siemens AG, → Inquiries of employees from the central Sustainability department and other relevant departments responsible for the preparation of the report in order to assess the sustainability reporting system, the data capture and compilation methods as well as internal controls to the extent relevant for the limited assurance engagement, → Identification of likely risks of material misstatement in the report, → Inspection of the relevant documentation of the systems and processes for compiling, aggregating and validating sustainability data in the reporting period and testing such documentation on a sample basis, → Analytical measures at Group level and at the level of the Industrial Businesses regarding the quality of the reported data, → Inquiries and inspection of documents on a sample basis relating to the collection and reporting of the sustainability data at Group level, at the level of the Industrial Businesses and at selected sites, → Inquiries and inspection of documents on a sample basis relating to the collection and reporting of the key performance indicators of the Environmental Portfolio including the procedures for determining the qualification of products, solutions and services for the Environmental Portfolio, → Inquiries of employees from the central Sustainability department and other relevant departments on material qualitative statements in the report as well as the inspection of selected underlying documents, → Evaluation of the presentation of disclosures in the report.