KYIV, Oct 18 – Naftogaz Ukrayiny has applied for participation in the certification process for the Nord Stream 2 operator, Head of the company's board Yuriy Vitrenko has said.

Naftogaz Ukrayiny, as a national company that leads the fight for the energy security of Ukraine, defends national interests, has applied for participation in the certification process of the Nord Stream 2 operator to the German regulator," he said at a press conference in Kyiv on Monday.