1. Where a CSD authorised in one Member State has set up a branch in another Member State, the competent authority of the home Member State and the competent authority of the host Member State shall use the form and template set out in Table 1 of Annex III for the exchange of information.
2. Where a competent authority requests supplementary information from another competent authority, it shall indicate to the other competent authority the activities of the CSD that justify such request.