Participation in and financing of domestic and foreign companies; acquisition, encumbrance, sale and management of real estate; provision of financing, in particular granting of loans to direct or indirect shareholders, to companies within the group or to third parties; issuance of guarantees or sureties of all kinds for liabilities towards companies within the group. These loans, guarantees or sureties may also be granted without compensation or reimbursement; participation in cash pooling activities within the group.