For the time being, we don't know what the situation is there. The mapping of the North is not complete. There may be high volumes, but right now, the routes in demand are those that are navigable right now. That's still a long way away and it requires extensive mobilization. In addition, the dredging period is very short. You need high-performance equipment for a large volume in a very short time.
On September 13th, 2017. See this statement in context.