The coal sector is gearing up for a fight with the Queensland government when it lifts a 10-year royalty freeze next week and imposes what the industry is labelling a super profits tax.

Saddled with debt and deficit after the COVID-19 pandemic, the Palaszczuk government will restructure the royalties system in its state budget on June 21 in a move that the coal sector, which is enjoying record high prices, says will reap billions extra in revenue.