FCX Q2 2026 Morenci Mine Rate Defined as Sustained Throughput

Management views on Morenci mine rate definition and the technology approach (FCX Q2 2026)

1) What management said about how “mine rate” is defined at Morenci

Management did not provide a formal, one-line engineering definition (e.g., “ROM tons/hr” vs “material moved”) in the excerpt, but they described how they operationally “define” and drive mine rate internally:

• They framed mine-rate improvement as a systems outcome—“where we are focusing on people process and technology… there is no technology solution that is gonna be the end all, be all,” implying mine rate is managed as an integrated production system rather than a single metric or single lever. ¹
• They explained that the rebuilding effort after intentionally taking down the mine rate during constraints/turnover during the pandemic took “a labor and a work in process for a number of years,” indicating that the mine-rate figure they cite reflects restored large-scale operating discipline rather than a temporary push. ²
• They quantified the improvement using an output-volume measure: Morenci mine rate is described as producing “roughly 900 thousand tons a day of material mined in the mine,” and said this was “substantially higher than what we have achieved in the last 5 years.” ²
• They also provided a relative “rate” framing: “second quarter mining rates were 30% higher than the average achieved over the last 5 years,” and tied that to “equipment reliability metrics” improving at Morenci. ³

Bottom line: In management’s language, Morenci “mine rate” is treated as a sustained, large-scale throughput rate (measured in tons/day or comparable “mining rates”), achieved through integrated people/process/technology and enabled by higher equipment availability and fewer unplanned downtime events. ²³¹

2) What management said about the technology (and related execution) behind the higher Morenci mine rate

Management’s technology story had two layers: (a) reliability/asset health and operational execution, and (b) leach innovation plus equipment transition tooling.

A. Technology as “layering on sophistication” to reduce downtime and improve decision quality

• Management explicitly rejected a “single tech solves all” framing: they emphasized centralizing mine-work expertise, providing shift teams insights during the shift so field teams don’t have to “manage the 20, 30 things… in the shift,” and then “layering on more technology” for equipment-level decision support (example given: if a piece breaks down, which alternative area is best). ¹
• They linked the mine-rate restoration to technical and maintenance performance: “availabilities of the existing equipment are much higher,” “maintenance programs are performing much better,” and they are “not having as much unplanned downtime.” ²
• They also described mine-rate scalability as an interconnected system because “it is all interconnected with shovels… all of your equipment to get everything working to where it should be.” ²

B. Incremental improvements to equipment and tooling (truck transition)

• They cited a concrete operational technology/tooling transition at Morenci: “transitioning a number of trucks to a higher capacity 400 ton ultra class truck,” continuing through the remainder of 2026, and planning to add “20 to plus trucks next year in the same fashion.” ¹

C. Leach innovation and “heat + additives” as a parallel technology track (not the mine-rate definition itself)

While your question asks about Morenci mine rate definition and technology, management also discussed technology initiatives that can affect the broader Morenci value chain (especially leaching). Key points from the transcript:

• They described a combined leach technology stack: “leach everywhere” tactics (drip-line placement, refining raffinate injection processes with “feedback loops with improved… analytics”), plus additive work (“Gen-1 additives”) and “Gen-2 additives” described as “a multiple effectiveness than the Gen-1.” ⁴
• For Morenci specifically, they stated that pilot/field activities were underway: “Pilot testing at Morenci is underway… testing heated solution… in our existing stockpiles,” and geothermal drilling at Morenci “could add a substantial amount of additional heat.” ⁵⁶
• They also highlighted that heated stockpile approaches aim to enhance recoveries and that Morenci is part of the portfolio for demonstration piles (they referenced “a couple at Morenci” for Gen-2 targeted demonstration piles). ⁴

Bottom line: Management’s technology approach at Morenci is not just one innovation. It is an integrated reliability-and-operations program (availability, maintenance, reduced unplanned downtime, centralized expertise and shift decision support) plus incremental equipment upgrades (truck capacity) and a parallel leach innovation pipeline (additives and heated/leach-solution work). ²¹³⁴⁵

3) Management’s implied “lessons” / implications for sustaining mine-rate performance and applying it more broadly

Management emphasized sustainability and institutionalization:

• They said the rebuild of Morenci mine rate required “disciplines that need to be institutionalized” and “need to sustain it every single day,” characterizing the improvement as a continuous discipline rather than a one-time technical fix. ²
• They also said “we have to sustain it” and are using technology to improve “equipment health and asset health,” explicitly tying it back to the shovel/equipment interconnection that supports throughput. ²
• In the broader Q&A framing, management asserted that improvements come from the combined system of “people process and technology,” reiterating “there is no technology solution… end all, be all.” ¹

Summary answer

• Mine rate definition (as management operationally frames it): a sustained throughput outcome measured in tons/day (≈900k tons/day) and evidenced by 30% higher second-quarter mining rates vs the last-5-years average, reflecting a restored, large-scale operating capability rather than a temporary change. ²³
• Tech behind it (management’s description): management “layers” technology on top of people/process changes—centralized mine-work expertise and shift-time decision insights, improved equipment reliability/maintenance with fewer unplanned downtime events, plus higher-capacity 400-ton trucks—and they also run Morenci leach technology pilots (heated solutions, geothermal heat, and additives) to expand value from existing resources. ¹²⁵⁶⁴