Photo by Bernard Hermant on Unsplash The transmission system operators of Bulgaria, Romania, Hungary, Slovakia and SOCAR signed an important Memorandum of Understanding in Sofia today, 25th April. The signing ceremony of the “Memorandum of Understanding for encouraging cooperation among Bulgartransgaz (Bulgaria), Transgaz (Romania), FGSZ (Hungary), Eustream (Slovakia) and the State Oil Company of the Azerbaijan Republic (SOCAR)”…