The State Government has challenged the accuracy of an Auditor-General’s report on iron ore royalties as it continues its efforts to abolish ‘concessional’ royalty payments by BHP Billiton and Rio Tinto.

The State Government has challenged the accuracy of an Auditor-General’s report on iron ore royalties as it continues its efforts to abolish ‘concessional’ royalty payments by BHP Billiton and Rio Tinto.