The WA top royalty rate is 7.5% DS ore but there is a reduction on this for desanding milling etc. There are also previously set lower rates for the main producers .
Lets say that $89 USD ton FOB = $150 AUD At the premium rate this would pan out at $11.50 AUD royalty /ton And lets say that this has been reduces to say 6% for processing and historical concessions' reasons Thai than would be $9/ton
If this were to be doubled over the next year to offset Covid-17 & imoending recession it should amount to about an extra $10 billion/year for WA, Qld* & NSW.
This is all about everyone including miners shouldering the economic burden fairly. The AUD has lost over 20% in value vs the USD over the past year which is a windfall for the export miners.
*From what I can gather Qld collected $3.8 billion on mineral royalties (predominantly coal) for 2019. and I assume that WA would have done at least that too.
