NSW Ambulance superintendent Paul Turner said the deceased man had been trapped by his legs, describing the area as "a very hard scene", adding the rescue became more hard because the deceased workers colleagues had jumped into the vat to try and save him.
"This is a awful tragedy", NSW Ambulance Superintendent Paul Turner said in a statement, adding they had deployed 10 resources to try and help the stricken men.
Two workmates were extricated from the tank at the ink factory and transported to Westmead Hospital, but the third man, believed to be in his 30s or 40s, died at the scene, a NSW Ambulance spokesman said.
New South Wales Ambulance Superintendent Paul Turner said two workers were rescued, one after a few minutes and another after two hours, but it was impossible to save the victim.
Some of the rescuers were experts in working in confined spaces, he said.
'There was still ink on the floor of the Value-Added Tax, which hampered rescue efforts and treatment, ' he told Daily Mail Australia.
The conditions in the tank were "hot", he said.
The accident happened about 8.45am
Mr Turner said: "The third patient unfortunately died on scene, this is a awful tragedy".
Two other maintenance workers who went inside the tank, were able to escape but were taken to a local hospital with leg fractures.
"We did absolutely everything we could".
'We had ten ambulance resources on scene, along with NSW Police and Fire and Rescue.
'It was a complex operation.
Detectives have established a crime scene and are investigating.
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