On 5 January 2017, the European Commission (“EC”) published its opening decision in the formal investigation into Luxembourg tax rulings obtained by entities of GDF Suez. The opening decision dated 19 September 2016 explains the reasons for the initiation of the formal investigation and the additional information requested from Luxembourg in order to reach a final conclusion. This decision represents therefore the opening, not the outcome, of the EC’s formal investigation into this matter. More information in this respect can be found here (PwC EU Direct Tax Newsalert dd. 6 January 2017).