Six companies claim Civil Australia Group owes them $1 million.
Six companies claim Civil Australia Group owes them $1 million.

LISTEN: 5 companies claim Gold Coast contractor owes $1m

FIVE regional Queensland companies from Mackay down to Brisbane claim they face a combined $1 million black hole after Civil Australia Group stopped paying their invoices for work done at Callide and Daunia mines.

The Observer reported on Tuesday that 21 workers claimed they had gone without pay for more than three weeks.

LISTEN | Reporter Campbell Gellie explains:

The workers claimed they had been left in the dark by Civil Australia Group general manager Jason Wagner who they say has not answered his phone since they walked off the Callide Mine site on March 22.

Now, business owners from Mackay, Murgon, Brisbane, and Toowoomba claim they too have not been paid after leasing equipment to Civil Australia Group, but not just at the Callide Mine site but also the Daunia Mine 130km south west of Mackay.

>> Civil Australia Group pay snub worth 'thousands', workers walk off

The companies claimed to have at least $1 million owing to them after they leased their heavy machinery to Civil Australia Group. 

One company accountant told The Observer he hadn't been able to contact Civil Australia Group for four weeks.

"That's when we started pursuing them for payments more vigorously," he said.

The company said they had many assurances of payments but they never came through.

Another equipment hire business manager said he knew something was going wrong when Civil Australia Group tried to change Australian Business Number.

"They tried to change their ABN while we still had the contract under their former one," he said.

"Our contract with them works on credit application and we couldn't just work on a new ABN all of a sudden."

The Observer has repeatedly tried to contact Mr Wagner but he has not answer our calls.