ROS-GAS-EXPO is recognised internationally as the leading event for representatives of the gas industry. It has been recognised by the Global Association of the Exhibition Industry (UFI) and has the RUEF mark, which is a guarantee of the key components of a high quality exhibition event. ROS-GAS-EXPO is recognised internationally as the leading event for representatives of the gas industry. It was recognised by the Global Association of the Exhibition Industry (UFI) and was included in the register of international exhibitions recommended for participation by the UFI General Secretariat,