Member States shall take the steps necessary to ensure that undertakings which supply gas or electricity to industrial end-users, as defined in Annexes I and II, communicate to the Statistical Office of the European Communities (Eurostat) in the form provided for in Article 3:
(1.)
the prices and terms of sale of gas and electricity to industrial end-users;
(2.)
the price systems in use;
(3.)
the breakdown of consumers and the corresponding volumes by category of consumption to ensure the representativeness of these categories at national level.