There is a reasonable case for increasing iron ore & coal royalties because Governments historically gave miners low concessional royalty rates in lieu of providing social infrastructure . Now that that has been done , miners do not have to continue spending on this social infrastructure which now has been taken over by the taxpayer:
Come on, I'm waiting for your "facts" rather than your speculation?
Apart from royalties being higher in Indonesia, Multinational miners here spend hundreds of millions on socal infrastructure and bribes but they are not saying that the high royalties are destroying their businesses. On the contrary, China is increasing its investment in Indonesia as part of its One Belt, One Road" mega project while we have been left out in the cold!
