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    BUMA–Adaro South Tutupan contract to 2030: planning notes for mine engineers

    February 24, 2026|

    Reviewed by Tom Sullivan

    BUMA–Adaro South Tutupan contract to 2030: planning notes for mine engineers

    First reported on International Mining – News

    30 Second Briefing

    BUMA has secured a new overburden removal and coal mining services contract with PT Adaro Indonesia for the South Tutupan mine in Tanjung Tabalong, South Kalimantan, running from 1 April 2026 to 31 December 2030. The agreement, which follows BUMA’s long-standing work at Adaro’s main Tutupan pit, covers continued deployment of large-scale truck–shovel fleets and associated mine infrastructure support. For geotechnical and mine planners, the deal signals stable medium-term stripping and haulage requirements, supporting ongoing pit slope development and waste dump sequencing through at least 2030.

    Technical Brief

    • Contract is with PT Bukit Makmur Mandiri Utama (BUMA), a PT BUMA Internasional Grup Tbk subsidiary.

    Our Take

    BUMA’s South Kalimantan work with PT Adaro Indonesia extends a pattern of long-dated coal mining contracts, echoing the multi-year A$740 million overburden and coal mining extension it secured in 2025 at Whitehaven’s Blackwater Operations in Australia.

    In our database of Mining contract awards, PT BUMA Internasional Grup Tbk appears increasingly as a cross-jurisdictional contractor, using Indonesian coal projects like South Tutupan alongside Australian work to smooth utilisation of large mining fleets and spread regulatory risk.

    Locking in a contract horizon to 2030 at South Tutupan suggests Adaro is planning for sustained coal output from Tanjung Tabalong, which may influence how other Indonesian operators in South Kalimantan pace their own contract renewals and equipment investments.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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