The company said dragline operations would remain suspended until otherwise advised.

Operations at Curragh have been suspended since November 21 when Peadon was fatally injured while working in the dragline operations.

"Resources Safety & Health Queensland Inspectors are continuing their investigation of the incident with the full support of the company," Coronado said.

"Queensland Police are no longer on site.

 "The RSHQ Inspectorate has issued directives to isolate the accident site and to suspend all operations of draglines at Curragh until it is satisfied that these activities can recommence safely."

In an initial report the Queensland Mines Inspectorate said preliminary investigations suggested the worker undertook work using the cable tractor while the dragline was stationary.

However, the worker either re-entered or remained in the operational swing boundary when the dragline became operational.

"The worker was struck by the dragline propel shoe, resulting in him sustaining fatal injuries," it said.

The inspectorate said its investigation would consider issues such as communication between machine operators and people on the ground, and verification of work practices.

Coronado said it would continue to work alongside authorities as required for the investigation process.

"The company continues to provide counselling and support to all employees, contractors and their families," it said.