Those nickel and iron ore cargoes areextremely dangerous. They if too wet , starting liquifiying, which means that the water in the cargo rises to the top and build on top a layer of "sludge" cargo. When the vessel starts
rolling the sludge stays on the side to which it rolls and does not come back and gives the veesel a list. This list increases which virtually each more roll and finally capsizing the vessel.
In those countries the cargo is stored in the open and with ever rain the cargo sucks up more water. There is usually delivered to the vessel at the beginning of loading a certificate which shows the MCL (Moist Content Level) of the cargo, However often those are updated seldom or just by signatures and not real surveys. If one loads, one has to check the cargo from ships side and the easiest way is via a tin-can test. On use a simple empy tin can, ,fills in cargo, shakes it vigriously and sets it down on a quite, flat surface. Whithhin a short time frame on top will build a water film. If that happens the cargo is oo wet. This test should be done by the ships crew very hour when they loading. Very often it is not done. Alsi NEVER-EVER trust the crtificates coming from shore about the MCL. I dare to say that in 8-10 cases the certificates are fake or incorrect.