Fire engines were mobilised from Map Ta Phut itself and from nearby factories to control the fire that raged at Indorama Polyester Industries Plc, a major producer of polyester fibre, on I-2 Road in the industrial estate.
Firefighters brought the blaze under control within an hour, but machinery and fibre products were damaged by the fire.
According to the initial investigation, workers saw fire break out in the upper level of the factory before spreading quickly to lower levels, burning machinery and already produced materials.
No one was killed or injured in the incident.
The cause of the fire is still unknown and damages could not be estimated, but waiting for experts to inspect the entire factory.
This is the second fire accident at the factory, as another fire occurred two years ago.