1.   An investment firm shall report transactions executed wholly or partly through its branch to the competent authority of the home Member State of the investment firm unless otherwise agreed by the competent authorities of the home and host Member States.

2.   Where an investment firm executes a transaction wholly or partly through its branch, it shall report the transaction only once.

3.   Where country code details in respect of an investment firm's branch are required to be included in a transaction report in accordance with fields 8, 17, 37, 58 or 60 of Table 2 of Annex I due to the partial or full execution of a transaction through that branch, the investment firm shall provide in the transaction report the ISO 3166 country code for the relevant branch in all of the following cases:

(a)	where the branch received the order from a client or made an investment decision for a client in accordance with a discretionary mandate given to it by the client;

(b)	where the branch has supervisory responsibility for the person responsible for the investment decision concerned;

(c)	where the branch has supervisory responsibility for the person responsible for execution of the transaction;

(d)	where the transaction was executed on a trading venue or an organised trading platform located outside the Union using the branch's membership of that trading venue or an organised trading platform.

4.   Where one or more of the cases provided in paragraph 3 do not apply to a branch of the investment firm, the relevant fields in Table 2 of Annex I shall be populated with the ISO country code for the home Member State of the investment firm, or, in the case of a third country firm, the country code of the country where the firm has established its head office or registered office.

5.   The branch of a third country firm shall submit the transaction report to the competent authority which authorised the branch. The branch of a third country firm shall fill in the relevant fields in Table 2 of Annex I with the ISO country code for the Member State of the authorising competent authority.

Where a third country firm has set up branches in more than one Member State within the Union, those branches shall jointly choose one of the competent authorities from the Member States to whom transaction reports are to be sent pursuant to paragraphs 1 to 3.