OFFICIAL Figure 20 - A3N Pit Aerial View (dec/25) Figure 21 - Vibration Measurements (A3N) Figure 22 – Projection Analysis on BlastVision™ Figure 23 – Measured Fragment Projection (A3N) Operationally, three lessons proved most valuable. First, early calibration in a surrogate area accelerated rollout and reduced uncertainty at A3N. Second, zoning by stand‑off distance simplified decision rules and helped maintain consistency under changing geometries. Third, a disciplined digital QA/QC workflow—linking planning, execution, and measurement—made it possible to optimize parameters without compromising safety or compliance. Optimization of Drilling and Blasting with High-Energy Explosives To ensure a rigorous evaluation of the high-energy explosive implementation, a comprehensive monitoring campaign was conducted over the first six months of the project (from Oct-24 to Mar-25). This included systematic measurement of powder factor (g/t), fragmentation (P80, mm), and EX1200 loading times (minutes), along with direct cost tracking for drilling and blasting. During this period, ore domains sustained average pattern 0.1 1 10 100 1 10 100 Vibration (mm/s) Frequency (Hz) NBR9653 Water Dam Buildings Distance (m) 0 10 20 30 40 50 60 70 80 90 100 Sector II Sector III
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