BHP copper output slips 5%: Chilean grade decline and project options for mine planners
Reviewed by Tom Sullivan

First reported on MINING.com
30 Second Briefing
BHP’s quarterly copper output slipped 5% to 491.9 kt, with FY26 production down to 1.95 Mt and FY27 guidance cut further to 1,650–1,800 kt as Escondida’s concentrator feed grade falls to 0.90% and Pampa Norte moves into deeper, more complex ore. The miner is pursuing a US$5 billion concentrator at Escondida to hold processing at 460,000 t/d, a potential US$1.5 billion chloride-leach restart at Cerro Colorado, and a Spence–Sierra Gorda processing MoU to counter Chilean grade decline. Copper price strength (US$6.53/lb in Q4, up 47% year-on-year) is currently offsetting weaker volumes.
Technical Brief
- Escondida’s FY26 copper output reached 1,261.2 kt (100% basis), down 3% year-on-year on lower head grade.
- Pampa Norte production dropped 21% to 212.6 kt as mining advanced into deeper, more complex ore zones.
- Copper South Australia delivered 320.7 kt, up 2%, with Olympic Dam achieving its highest output in 20 years.
- Escondida’s new concentrator is sized to maintain 460,000 t/d throughput despite progressive grade decline.
- Cerro Colorado restart concept involves ~US$1.5 billion chloride leach operation over a planned 20‑year mine life.
- Spence’s forecast 210–230 kt output is expected to improve post‑FY28 after a sanctioned concentrator upgrade boosts recoveries.
- Vicuña (Filo del Sol and Josemaría) spend is ramping toward US$800 million in 2026 ahead of a Stage 1 decision.
- RIGI approval grants Vicuña a 40‑year stable fiscal regime, de‑risking long‑life copper project economics in Argentina.
- San Manuel transfer to Faraday Copper for a 30% equity stake lifts BHP’s holding to ~32.5% in the combined Arizona hub.
- Western Australia Iron Ore hit record 265 Mt output and BMA coal volumes rose 3% on improved stripping performance.
Our Take
The 35–47% jump in realised copper prices versus only a 3–5% production decline suggests BHP’s earnings leverage to copper price remains strong, which in our database contrasts with several other copper‑heavy majors whose 2026 equity performance has been dragged more directly by the sharp gold price correction.
BHP’s move to a 32.5% stake in Faraday Copper via the San Manuel transfer, alongside exposure to projects like Resolution and the broader Arizona copper district, indicates a deliberate pivot to US copper jurisdictions just as Chilean assets such as Escondida and Pampa Norte face grade and cost headwinds.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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