Minerals royalties help underpin the NSW government's fiscal strategy.
The companies steadily increased the number of direct jobs provided over the past 10 years.
Analysis finds five coal mining electorates lost almost $1 billion a year.
The survey found participating companies directly injected $6.1 billion into the Hunter economy.
The strong growth in demand for NSW coal was led by India.
NSW legislation banned uranium mining and nuclear power for electricity generation in 1986
Works as haul truck driver and drill rig operator.
There are a range of NSW coal projects under assessment.
The Hunter is the biggest mining region in NSW.
Lee was the first woman in Illawarra Coal to take on the statutory role of shift undermanager.
The number of jobs supported by the industry increased markedly to 7320 in FY20.
The metals mining sector in NSW is experiencing a strong period of growth.