Subject: Decision of the Hellenic Competition Commission on the ex-officio investigation for the finding of an infringement of articles 1 of Law 3959/2011 (former article 1 of Law 703/1977), as in force, and 101 TFEU in the sector of Provision of Services of Electrical Installations / Works regarding the ASSOCIATION OF ELECTRICAL CONTRACTORS OF ATTICA (SEIEA) that was not subject to the Dispute Settlement Process.