In the consortium of bidders with the company Monting d.o.o., and as part of the project for the construction of the eastern hot water pipeline and steam pipeline TE-TO Zagreb - Slavonska avenija, during 2013, ING-GRAD Ltd performed the construction works of the first phase of the pre-insulated steam pipeline and hot water pipeline for the supply of thermal energy in the eastern part of the city of Zagreb on sections from TE-TO Zagreb to the shaft along Radnička cesta. On the mentioned 1613 m long section, the existing overhead steam pipeline was replaced by an underground hot water pipeline.