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Indonesia’s BUMA lands $493m extension at Australian coal mine

The extension secures BUMA Australia’s operations at the Blackwater Mine in Central Queensland’s Bowen Basin, one of Australia’s largest open-cut metallurgical coal operations, providing pre-strip services through to June 2030.

Shukri Mohamed (The Jakarta Post)
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Tue, December 23, 2025 Published on Dec. 23, 2025 Published on 2025-12-23T11:58:23+07:00

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Piles of coal are seen on barges on Aug. 16, 2022, in Samarinda, East Kalimantan. on Aug. 16. Piles of coal are seen on barges on Aug. 16, 2022, in Samarinda, East Kalimantan. on Aug. 16. (AFP/Adek Berry)

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UMA Australia Pty Ltd, a subsidiary of Indonesian mining firm PT BUMA Internasional Grup, has secured a multi-year contract extension worth AU$740 million (US$493.4 million) with Blackwater Operations Pty Ltd, part of Australian coal miner Whitehaven Coal Mining Limited.

The extension secures BUMA Australia’s operations at the Blackwater Mine in Central Queensland’s Bowen Basin, one of Australia’s largest open-cut metallurgical coal operations, providing pre-strip services through to June 2030.

Unlike thermal coal that is mainly used for electricity generation through coal-fired power plants, metallurgical coal is chiefly used in the steelmaking process.

“This extension underscores Whitehaven’s confidence in BUMA Australia to deliver safely and efficiently at scale across one of Queensland’s largest metallurgical coal operations,” BUMA Australia CEO Johan Ballot said in a statement on Monday.

The Blackwater Mine is located in the Bowen Basin in Central Queensland, one of Australia’s most productive coal regions. The mine spans approximately an 80-kilometer strike length across multiple pits, supplying premium coal to international steelmakers, particularly in Asia. Its scale and geological complexity require extensive pre-strip activities to access coal seams efficiently and safely.

BUMA Australia has operated at the Blackwater site since 2012 through its predecessor operations and continues to play a central role in large-scale mining activities across multiple pits. The company currently employs around 390 permanent workers at the site, with the workforce largely drawn from the surrounding Central Queensland region.

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