It is explained in more detail later in the quarterly:
Overbreak refers to excess excavation beyond design specifications, while underbreak results in incomplete excavation that requires costly rework.
Both issues can materially increase development costs, delay mine schedules, and reduce advance rates — significantly impacting access to revenue-generating ore bodies. Improving control of development drives addresses a very large, critical inefficiency across the global underground mining sector.
It is explained in more detail later in the quarterly:Overbreak...
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