PYBAR Sunday Creek, Fosterville and Rosebery: underground scope and risks for engineers
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
PYBAR, a Thiess company, has secured new underground development contracts at Southern Cross Gold’s Sunday Creek gold‑antimony project and Agnico Eagle’s Fosterville gold mine in Victoria, plus a contract extension at MMG’s Rosebery polymetallic mine in Tasmania. The work packages centre on decline and level development, ground support installation and associated services for high‑grade narrow‑vein orebodies, including gold‑antimony and zinc‑lead‑copper mineralisation. For geotechnical and mining teams, the awards signal continued demand for specialist underground contractors capable of managing complex ground conditions in mature brownfield mines and emerging critical minerals projects.
Technical Brief
- For similar Australian underground mines, the awards reinforce reliance on specialist contractors for complex decline expansions.
Our Take
In our database, PYBAR’s recent work at Hillgrove and Sunday Creek means it is now attached to multiple Australian antimony–gold projects, signalling that the contractor is becoming a go‑to underground specialist for this critical mineral niche.
Thiess’ parallel wins at Koolyanobbing (iron ore) and its extended explosives JV with AECI suggest that PYBAR’s parent is using the Australian portfolio – including Fosterville and Rosebery – to keep a diversified pipeline across gold, base metals and bulk commodities.
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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