Question · Q3 2025
Alex Hacking from Citi questioned the safety confidence in resuming mining operations before full mud zone remediation, the extent of mud zone mitigation possible, and whether improved water management could reduce material accumulation. He also asked for reassurance regarding the prevention of a similar high-velocity zone in PB2.
Answer
Kathleen Quirk, President and CEO, and Mark Johnson, President and COO of Freeport-McMoRan Indonesia, emphasized that cement plugs in PB1C panels will isolate the area, ensuring no surface connection before PB2 restarts. They explained that while water drainage is efficient, surface rainfall moves material into the pit bottom, forming mud, which they aim to intercept with drilling. Mark Johnson assured that PB2's conditions differ, preventing a similar high-velocity zone, and Muon technology will be used for verification.
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