You are also correct in that GLER does not have to own their own loading/shipping terminal but most (if not all) loading shipping terminals receive coal from various sources and it is sold from there stockpiles to other buyers. In this case GLER has a contract to provide to a specific end user so the coal would have to be completely separate from mining all the way to shipping. The shipping terminals I am aware of would not separate the coal this way. I'm not going to say it is impossible because I am not that certain but I will say it has significant difficulties in doing so.
Maybe I didn't fully understand your 'quote' (English is my 3th language) but is it possible (in the coal business) that the 'big foreigner company/ end user' provides/stand in for the storage of the coal...the Handling of Shipments etc.? Of course we don't know all the details yet.