Procurement of Swap Services on the basis of the Swap Services Agreement. The purpose of the Swap Services is to resolve a congestion of the gas supply resulting from pipeline disruption due to maintenance work, to be alleviated by auxiliary supplies delivered at the cross-border interconnection point between Hevlín (CZ) and Laa/Thaya (AT) as a swap against gas volumes to be transferred by AGGM at the virtual trading point in the Austrian Eastern Market Area.