possibly driven by the insurance company that rio tinto engages
we all know insurance companies will find any excuse to not pay
i was told of a story of a family who lost there house in recent Vic bush fires , the family had been paying a premium on top of normal charges to get premium coverage of cause , when the unthinkable happened the insurance company told this family , even though your insured to have a new house built for $ X amount " we think you could build your house cheaper so we'll give you a lesser amount " needless to say they are going to court
lots of corporate Cunce in this world