BHP expands Olympic Dam resource to underpin copper growth
BHP (ASX: BHP) expanded its Olympic Dam mineral resource, aiming to increase copper production to 500,000 tonnes annually by 2035. The update includes a new underground block-cave resource of 10.73 billion tonnes, with 88.1 million tonnes of copper. BHP maintained production guidance despite a quarterly decline in copper output. The company also approved $800 million for the Escondida New Concentrator in Chile.
How this was made

The 30-second read
Why it matters
The new resource underpins BHP's long‑term copper growth targets, potentially influencing analyst forecasts and investor sentiment.
Market read
A material, first‑time disclosure of a large copper resource that could affect BHP's valuation and the broader copper market.
What to watch
Capital requirements, technical risk of block‑cave mining, and near‑term copper price volatility could temper the upside.
Background
BHP released its September 2026 operational review alongside the resource update, noting copper production guidance and recent operational disruptions.
Ticker impact
BHP disclosed a new 10.73 billion‑tonne block‑cave copper resource at Olympic Dam, expanding its long‑term copper production potential.
likely upward pressure as investors price in higher future copper supply potential
Large, previously unreported resource adds material upside to BHP's copper pipeline; market typically rewards such resource expansions.
Market effects
Boosts copper sector fundamentals and may lift other copper miners and related equipment suppliers.
Positive for Australian mining sector and South Australian economy.
Adds to global copper supply outlook, supporting bullish sentiment on copper prices.
Counterpoint
If the block‑cave resource fails to convert to reserves, the announcement could be over‑optimistic and lead to disappointment.
Key entities
- companyBHP
Global mining giant expanding its copper resource base.



