Overview

Mine Type	Open Pit
Stage	Permitting
Commodities	Coal (metallurgical & thermal)
Mining Method	Truck & Shovel / Loader
Mine Life	...
Snapshot	The proposed Winchester South open cut metallurgical coal mine is located in Queensland’s Bowen Basin. At full capacity the mine is targeting an average ROM production of 15Mtpa to supply the international market for about 30 years. On 31 March 2023, the Winchester South project team submitted the Response to Submissions Report to the Office of the Coordinator-General (OCG), which responded to all submissions received during the public notification of the Revised Draft Environmental Impact Statement (EIS) in December 2022. On 7 July 2023, the EIS was formally accepted by the OCG as the final EIS for the Winchester South project. The OCG now prepares a report evaluating the EIS. The project continues to progress through the Queensland Government’s coordinated project approval process. The project team is continuing to complete a feasibility study with detailed studies underway across all project work streams.

Deposit type

• Sedimentary

Summary:

Winchester South is located in Queensland near the township of Moranbah in the Central part of the Bowen Basin which contains numerous important coal producing intervals in the Permian stratigraphy. The sequences of economic interest for open cut mining include the Leichhardt seams and the Vermont Upper seam of the late Permian Rangal Coal Measures as well as the and Vermont Middle Lower seam of the Fort Cooper Coal Measure. The Goonyella Middle seams of the Moranbah Coal Measures are potential targets for underground mining. The main host-rock types of these sub-groups are sandstone, siltstone with minor stratigraphic layers of conglomerate, and tuffaceous bands.

Structurally the deposit is dominated by the north-south Winchester Syncline which has been itself affected by reverse and normal faulting.

The open cut portion (Rangal and Fort Cooper seams) of the deposit is located within the subcrops along the syncline margin.

Dimensions
The Rangal and Fort Cooper seams resources trends ~15 km northwest-southeast following the Winchester South syncline and is ~6km wide at its maximum. The seams’ depth below topography is generally less than 150 m.

The Moranbah Coal Measures resource in the south-west of the project area trends northwest southeast for ~10 km with a width of ~3 km and a depth from ~400 m to ~650 m below the topographic surface for the Moranbah Coal Measures seams.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

Operational metrics

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Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Sep 21, 2023
.......................	.......................		Sep 21, 2023
.......................	.......................		Sep 21, 2023
.......................	.......................		Sep 21, 2023

Total Workforce	Year
......	2022