1.   For the purposes of ensuring a coordinated action under Article 25(3) of Regulation (EU) No 596/2014 on cross-border cases involving financial instruments related to wholesale energy products, competent authorities shall participate, when requested to do so by ACER, in a cross-border investigatory group established under Article 16(4), point (c), of Regulation (EU) No 1227/2011 of the European Parliament and of the Council (4).

2.   For the purposes of ensuring a consistent approach to the enforcement of relevant rules under Regulations (EU) No 596/2014 and (EU) No 1227/2011, irrespective of the existence of a specific case, ESMA and ACER shall consult each other regularly.

3.   Where ESMA is requested under the second subparagraph of Article 25(6) of Regulation (EU) No 596/2014 to coordinate an investigation or inspection with cross-border effect, ESMA may establish a temporary group on an ad hoc basis to include the competent authorities of the Member States affected by that investigation or inspection.