Overview

Mine Type	Underground
Status	Active
Commodities	Coal (metallurgical) Coal (thermal)
Mining Method	Bord-and-pillar Longwall
Production Start	...
Mine Life	...
Snapshot	24 March 2023 - Malabar Resources Ltd. is pleased to announce that first coal has been produced from the Maxwell Underground Mine in the New South Wales Upper Hunter Valley, marking the start of operations for the mine. First coal was processed from the Maxwell Mine’s re-commissioned CHPP during the period, with the first train departing site and discharged at the port in June 2023. Raw coal from development activities totalling 0.07Mt was produced during the period. Equipment supply for the Whynot seam progressed with delivery of the first shuttle car and feeder breaker. The Woodlands Hill portal excavation was completed, portal entries were installed and drift construction commenced in July 2023.

Deposit type

• Sedimentary

Summary:

The Project is located in the Hunter Coalfield in the northern part of the Permo-Triassic Sydney Basin, which forms the southern portion of the Sydney-Gunnedah-Bowen Basin (DMR, 1988).

The Wittingham Coal Measures occur widely within the Hunter Coalfield and contain many recoverable seams. The Project targets mining of the Whynot, Woodlands Hill, Arrowfield and Bowfield Seams.

The target seams are within the Jerrys Plains Subgroup, forming part of the upper and middle units of the Wittingham Coal Measures.

Above the target seams, the stratigraphy of the area consists of a sequence of sandstone, siltstone and laminate units within the Wittingham Coal Measures.

Geological Features
The target underground mining area sits on the western side of the Muswellbrook Anticline, which is a prominent regional geological feature. The strata in the area (including the coal seams) dip gently, with gradients varying between 3% and 5%.

Geological features identified in the target underground mining area and surrounds include:
• a north-northwest-orientated regional graben structure to the west of the Maxwell Underground;
• a north-east-trending fault located to the south-east of the Maxwell Underground with a throw of approximately 10 m;
• smaller faults within the mining area with throws of between approximately 2 m to 6 m;
• igneous dykes;
• dolerite sills intruded into the Whynot, Arrowfield and Bowfield Seams; and
• the Edderton Sill intruded into the interburden between the Whynot and Blakefield Seams, with a thickness of approximately 20 m.

The regional graben structure to the west of the Maxwell Underground comprises the East Graben Fault and the Randwick Park Fault.

The East Graben Fault is sub-vertical and has a downthrow of up to 20 m to the west into the graben which forms with the sub-parallel Randwick Park Fault, which has a throw of up to 50 m to the east.

Mining Methods

- subscription is required.

Comminution

Crushers and Mills

Processing

- subscription is required.

Production

Operational metrics

Metrics	2023
Coal tonnes mined	....

Personnel

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