LNP natural resources spokesman Dale Last has lashed out at the state government approval process for Adani's Carmichael mine.
Mr Last was addressing reports the state government had commissioned a new review of the mine's black-throated finch management plan.
That plan, as well as the mine's groundwater management plan, need to be ticked off before Adani can start mining at the site.
"Here we are at the 11th hour and this government has now decided to bring in an outside group to do an environmental assessment on the black-throated finch," Mr Last said.
Mr Last said state government delays were threatening the vital jobs the mine would create.
"Adani has set aside a huge area to enable the finch to be left alone.
"Who would want to come to Queensland and do business in this state, when you see companies like Adani treated the way they are."
The black-throated finch is listed as endangered in Queensland, according to the state Department of Environment and Science.
The state Department of Environment and Science recently confirmed it is still investigating allegations Adani sunk non-compliant de-watering bores at the mine site.
A similar probe has already been dropped by the federal government, which found Adani had not breached Commonwealth law.
Adani said these management plans were the only thing stopping the mine, and criticised the state government for a lack of clarity about the approval process.
"Ultimately the management plan approvals are all that is preventing us from starting the mine and delivering thousands of jobs in the process.”