Exploration Decline Contract Awarded for Sunday Creek

Exploration Decline Contract Awarded for Sunday Creek

Engineering & Mining Journal (E&MJ)
Engineering & Mining Journal (E&MJ)May 5, 2026

Why It Matters

Accelerating underground drilling at Sunday Creek boosts the pace of resource definition for a critical‑metal deposit, enhancing Southern Cross Gold’s ability to capture antimony and gold supply in a market hungry for strategic minerals. The project’s scale also aligns with Victoria’s push to develop critical‑minerals jobs and domestic supply chains.

Key Takeaways

  • PYBAR awarded underground decline contract for Sunday Creek project.
  • Decline will boost drilling rigs from 11 surface to 24 underground.
  • Project targets gold and antimony, aiming for large pre‑development drill‑out.
  • New hires Shane Leary and Ben Edwards lead underground development.
  • Seven‑month decline construction positions Sunday Creek among world’s biggest drill‑outs.

Pulse Analysis

Southern Cross Gold’s Sunday Creek deposit sits 60 km north of Melbourne and is classified as an epizonal gold‑antimony system, a subset of orogenic deposits formed at relatively shallow depths. Such deposits are prized for their co‑occurrence of gold and antimony, the latter being a critical metal used in flame retardants, alloys, and emerging battery technologies. The Victorian Labor government’s endorsement underscores the strategic importance of diversifying Australia’s critical‑minerals portfolio, especially as global supply chains seek alternatives to traditional sources in China and Europe.

The award to PYBAR Mining Services marks a pivotal step in transitioning Sunday Creek from surface exploration to intensive underground drilling. By establishing a primary decline and supporting infrastructure within a seven‑month window, the project will double its drilling capacity, moving from 11 surface rigs to 24 underground rigs positioned 115 m below ground. This acceleration not only shortens the timeline for resource definition but also creates a substantial workforce demand, reflected in the recent appointments of Shane Leary as projects manager and Ben Edwards as underground development manager. The expanded underground platform will host diamond‑drilling rigs, enabling a high‑resolution drill‑out that could rank among the largest pre‑development programs worldwide.

From a market perspective, the rapid development of Sunday Creek could position Southern Cross Gold as a notable supplier of antimony, a metal experiencing tightening supply amid rising demand for clean‑energy applications. Investors are likely to view the project’s progress as a catalyst for future revenue streams, especially if the anticipated resource estimates meet or exceed expectations. Moreover, the initiative aligns with broader governmental policies aimed at bolstering domestic critical‑minerals production, potentially unlocking further incentives or partnerships. As the project advances, its success may serve as a benchmark for other Australian miners seeking to capitalize on the burgeoning critical‑minerals sector.

Exploration Decline Contract Awarded for Sunday Creek

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