The Department of Environment, Water, Heritage and the Arts is inviting public comment on the expansion project, with the documentation made available yesterday.
Anglo is after three mining lease applications adjacent and north of the two mining leases of the Foxleigh mine, covering a total of 3798 hectares.
Lying 10 kilometres south of Middlemount, the mine produces pulverised coal injection coal and its current production capacity is 3.3Mtpa.
Open cut mining in the new areas is expected to increase the workforce by 40 employees, but Anglo does not see the need for additional infrastructure.
Work has started on the environmental impact statement for state government approval.
Anglo is seeking DEWHA approval to meet requirements of the Environment Protection and Biodiversity Conservation Act.
Korean steel company POSCO holds 20% of the Foxleigh JV while mining investment company Itochu has 10%.
