copper mining

Ernest Henry’s bold cave reorientation boosts productivity, tames seismicity, and sets new benchmark for deep underground mine design

When mining engineer Eddy Zhang took the stage at the 2025 AusIMM Underground Operators Conference in Adelaide, he was candid about the task at hand: “Today I’ll be presenting learnings from reorientating the Ernest Henry sublevel cave.

Sleeping giants awaken: How Ernest Henry set a global benchmark for firing overslept rings in SLC mining

When a major weather event halted production at Evolution Mining’s Ernest Henry Operations (EHO) in March 2023, it set the stage for a remarkable operational comeback that would go on to earn Matt Bouwmeester the Best Paper of the Conference award at the 2025 AusIMM Underground Operators Conference in Adelaide.

Mark Cutifani to miners: Stop apologising. We don’t just dig rocks—we make modern life possible. Time to own it, say it, and lead like it.

For underground mining professionals, the AusIMM Underground Operators Conference in Adelaide delivered no shortage of technical insights—but it was a keynote from one of the industry’s most accomplished leaders that left the deepest impression.