Antipa Minyari gold–copper MRE: open-pit and underground lens for mine planners
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Antipa Minerals has issued an updated JORC 2012 mineral resource estimate for its 100 per cent-owned Minyari gold–copper project in Western Australia’s Paterson Province, confirming a standalone open-pit and underground development scenario. The MRE now covers the Minyari, WACA, Sundown and Minyari South deposits, with resources reported above a 0.5g/t gold cut-off for open pit and 1.5g/t for underground, and includes both sulphide and oxide material. Antipa is progressing pit optimisation, underground trade-off studies and metallurgical testwork to support a potential prefeasibility study.
Technical Brief
- For similar Paterson Province projects, integrated open-pit/underground scenarios are becoming the default development concept.
Our Take
Within the 388 Mining stories in our database, Western Australia projects like Minyari tend to move from study to early works faster than most other Australian regions, reflecting comparatively streamlined state-level permitting and established contractor capacity.
Among the 776 tag-matched ‘Projects’ and ‘Contract Award’ pieces, smaller-cap explorers such as Antipa Minerals often use early contract awards at projects like Minyari to de-risk execution and demonstrate momentum to potential JV partners or acquirers rather than to signal full funding.
For Western Australia greenfields developments similar to Minyari, our coverage shows that early-stage feasibility work increasingly bakes in modular plant and contract mining options, which can materially lower upfront capex and make marginal deposits financeable for juniors like Antipa Minerals.
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.
Related Articles
Related Industries & Products
Mining
Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.
Tunnelling
Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.
CMRR-io
Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.
HYDROGEO-io
Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.
GEODB-io
Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.
