Mastermyne Tahmoor mine services award: contract structure and risks for engineers
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
Mastermyne Group has secured a new mining services contract with GMT Mining Pty Ltd for the restart and ongoing operation of the Tahmoor underground coal mine in New South Wales. The mine was recently acquired by a consortium of M Group – Mastermyne’s largest shareholder – and Golden Energy and Resources (GEAR), and will be operated by GM3. The deal signals a structured restart pathway for Tahmoor, with clear separation between ownership (M Group/GEAR), operations (GM3) and contracted underground services (Mastermyne).
Technical Brief
- Contract scope covers underground mining services for both restart works and steady-state production activities.
- Separation of ownership, operations and contracting simplifies risk allocation for mine safety, production and statutory compliance.
- For similar brownfield restarts, this structure can de-risk labour ramp-up and technical execution during early production.
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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