The Grant Thornton report finds material issues in the BDO independent expert's report.
The total export figures surpassed the previous record by 2Mt.
The 2018 inventory comprises both thermal and metallurgical coal.
The restricted ports carry about half of China's thermal coal imports.
Adani said activists and anti-coal groups were peddling misinformation.
Stanmore boss rejects BDO valuation criticisms.
BHP angers the union with plans to dump shipping service.
The strike follows a vote in December to take industrial action to improve employment conditions.
The mine achieved coal sales of 605,423t for the December quarter.
Heat illness is not the only danger of working during a heatwave.
The tailgate fell and the injured person's head was jammed.
China is deploying ultra-low emissions technologies to reduce or eliminate release of pollutants.