'Just-in-time' or plenty of time
Stocking up factories, terminals and electricity generating stations is the core business of the shipping company. We stock up factories, sometimes following storage and transshipment, according to the ‘just-in-time’ principle in order that the wharves are not unnecessarily kept full and/or for keeping local stock levels at an acceptable level so that factories always have enough stock and are able to operate without stoppages.
Regarding electricity generating stations and terminals, it is often the case that entire cargoes of up to 100,000 tons are immediately put into pushbarges so that they can be taken to the unloading location when needed. This can result in time-savings when unloading sea-going ships, but it also saves money by avoiding extra storage expenses.