Bugarski premijer Boyko Borisov, koji nije učestvovao u pregovorima, nego je otputovao u Varnu na svečano potpisivanje, izjavio je da će gasovod Južni tok predstavljati korist ne samo za njegovu zemlju, nego i za Srbiju i Hrvatsku, koje su se također pridružile projektu.
Bulgarian Prime Minister Boyko Borisov, who did not participate in the talks, but travelled to Varna for the signing ceremony, said the South Stream pipeline will benefit not only his country, but also Serbia and Croatia, which have joined the project as well.