Overview

Mine Type	Open Pit & Underground
Status	Active
Commodities	Coal (metallurgical)
Mining Method	Truck & Shovel / Loader Bord-and-pillar Continuous
Mine Life	...
Snapshot	The Millennium and Mavis Downs project is adjacent to Poitrel and shares access to Red Mountain coal handling and preparation plant, and coal loading and transport infrastructure. Millennium is operating as a conventional open-cut truck and shovel operation. Auger mining ended in April 2023. Underground operations continue to ramp up following the establishment of a second production unit. Further exploration, engineering and approvals works are also progressing on the Millennium underground project, which is located adjacent to the Mavis underground mining area and offers potential underground operations life extension. A decision has been taken to start the necessary steps to cease operations at the Mavis Underground from the end of June and complete the transition by the end of 3Q 2024. The potential Millennium underground development option is unaffected by this decision.

Deposit type

• Sedimentary

Summary:

The Millennium project area lies within the Permo-Triassic Bowen Basin. The Bowen Basin consists of 10 kilometre (km) thick sequences of volcanic, shallow marine and terrestrial sediments and is categorised back-arc to foreland basin.

Coal seams occur within the Rangal Coal Measures which are Late Permian in age. These seams dip to the west at approximately 4 - 7 degrees within the Millennium Lease and 4 – 10 degrees to the east at Mavis Downs.

The coal seams of interest found within the Project area are as follows – Leichhardt and Vermont Upper 1. Additional seams were intersected in the historic drilling and in part analysed these were the M seam and plies of the Vermont Lower Seams.

The target seams have a cumulative thickness of approximately 7 m across the deposit.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Production

Commodity	Units	2022	2020	2019	2018	2017	2016
Coal (metallurgical)	Mt	....	....	0.5	1.7	3	3.2
Heat Content	BTU/lb			12,600	12,600	12,600	12,600

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Oct 9, 2023
.......................	.......................		Oct 9, 2023
.......................	.......................		Oct 9, 2023
.......................	.......................		Oct 9, 2023
.......................	.......................		Oct 9, 2023

Employees	Year
......	2021
......	2019
......	2018