Through a collaboration with a neighbouring company, Cipax in Norway is utilising residual propane that would otherwise have gone to waste. At the same time, the number of transport operations is also reduced, as the residual propane does not need to be transported for destruction. Deliveries of used cylinders arrive at Cipax’s neighbouring company, where they are emptied of residual propane. After oil separation and particle filtration, it is then transported to Cipax through an underground gas line that runs between the companies. The recycling is working very well, and the residual propane now makes up around 25 per cent of total consumption at Cipax.