Drilling and placement 1Φ450 steel pipe for natural gas, 50 meters length, at railway of Katerini, Drilling and placement 1Φ450 steel pipe for natural gas, 100 meters length, at Thessalonica – Katerini national road, Drilling and placement 1Φ800 steel pipe for natural gas, 34 meters length, under railway at Refinery of Aspropyrgo, Horizontal Directional Drilling for Natural Gas and placement 1Φ450 steel pipe, 110m length at the National Road of Katerini – Thessalonica.