MGX’s $412m backing for Central Tanami: design and risk notes for mine engineers
Reviewed by Joe Ashwell
First reported on Australian Mining
30 Second Briefing
MGX Resources is deploying a $412.1 million cash and investment pool to fast‑track the Central Tanami gold project in the Northern Territory, focusing on accelerated drilling, site infrastructure upgrades and underground mine preparations. The 50 per cent‑owned Central Tanami Project Joint Venture is moving towards commencement of the Groundrush underground operation, shifting MGX’s portfolio away from iron ore. For engineers, the spend signals imminent demand for geotechnical design of underground stopes, ground support and dewatering, plus haul road and camp upgrades along the Tanami Road corridor.
Technical Brief
- Capital is being directed specifically to drilling, surface infrastructure and underground access preparation at Central Tanami.
- Groundrush deposit is the initial underground mining focus within the broader Central Tanami project area.
- Similar remote mining projects in the Tanami typically require robust all-weather road design and dust control measures.
Our Take
The Central Tanami Project Joint Venture’s 50:50 structure with MGX Resources, acquired from Northern Star Resources in early 2026, suggests MGX is using this asset as its flagship Northern Territory gold growth platform rather than a satellite holding.
Across our mining-project coverage, only a handful of Northern Territory gold items intersect with iron ore as a tagged commodity, signalling that MGX Resources is positioning Central Tanami in a relatively uncluttered regional gold space compared with more crowded Western Australian districts.
The earlier naming of Macmahon Underground as preferred contractor for the Groundrush exploration decline indicates that, with a 50 per cent JV stake, MGX Resources will need to align its capital deployment and schedule tightly with Macmahon’s underground development sequencing to avoid bottlenecks on the Tanami Road logistics corridor.
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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