Contracting entities shall notify to the Commission or the national oversight body, at their request, the following information regarding the application of paragraphs 2 and 3 of Article 11 and of Article 12.
(a) the names of the undertakings or joint ventures concerned,
(b) the nature and value of the concessions involved,
(c) proof deemed necessary by the Commission or the national oversight body that the relationship between the undertaking or joint venture to which the concessions are awarded and the contracting entity complies with the requirements of Articles 11 or 12.