BHP Copper Production Falls as Escondida Grades and Pampa Norte Weaken

BHP

BHP copper production fell in January-March as lower output from Escondida and Pampa Norte outweighed stronger results from South Australia and Antamina. The Australian mining group produced 476,800t of copper during the quarter, down 7.1% from a year earlier and 2.8% from the previous quarter.

BHP copper production remains within the company’s wider plan for the July 2025-June 2026 fiscal year. The miner kept its overall copper guidance unchanged at 1.9mn-2mn t, suggesting that first-quarter weakness is still manageable at group level.

The result shows the operational complexity behind global copper supply. Escondida remains a major copper asset, but lower feed grades reduced concentrate output despite higher concentrator throughput. Pampa Norte also weakened sharply, forcing BHP to lower guidance for the operation.

BHP copper production is strategically important because copper demand is increasingly tied to grids, electrification, data centres, renewable energy and industrial infrastructure. Any weakness from major producers matters in a market already focused on mine grades, project delays and supply-chain fragility.

Escondida and Pampa Norte Drive Quarterly Copper Decline

Escondida remained the central pressure point in BHP’s quarterly copper performance. Copper concentrate output at the Chilean operation fell by 14% on the year to 248,300t.

The decline was mainly caused by lower feed grades. Escondida’s average copper feed grade fell to 0.88% from 1.09% a year earlier, reducing concentrate production even though concentrator throughput rose by 4.1% to 34.2mn t.

This is an important signal for copper markets. Higher throughput cannot fully offset grade decline when ore quality deteriorates. Large copper mines increasingly need to process more material to maintain output, raising energy, water, equipment and cost pressure.

Escondida’s cathode production moved in the opposite direction. Copper cathode output rose by 22% to 54,900t because of improved sulphide leach performance.

That improvement helped soften the broader decline. However, concentrate weakness still mattered because Escondida is one of the world’s most important copper operations and a major contributor to BHP copper production.

BHP expects Escondida output for July 2025-June 2026 to reach the upper half of its 1.2mn-1.275mn t guidance range. This suggests that the company still expects stronger performance across the fiscal year despite the lower quarterly concentrate result.

Pampa Norte was a clearer negative. BHP produced 25,700t of copper concentrate and 18,900t of copper cathode at the mine, down 29% and 41% year on year, respectively.

Cathode output fell because of lower planned stacked copper grade. Concentrate output declined because of weaker recovery rates.

As a result, BHP lowered Pampa Norte production guidance to 210,000-220,000t from the previous range of 230,000-250,000t. This was the main guidance cut in the company’s copper portfolio.

Pampa Norte’s weaker outlook reinforces a broader industry issue. Copper mines are not only exposed to headline ore volumes. They are exposed to grades, recovery rates, leach performance, maintenance timing and processing efficiency.

South Australia and Antamina Offset Part of the Weakness

BHP’s South Australian operations provided partial support. Copper concentrate output rose by 22% to 27,500t, while cathode production slipped by 2.3% to 55,300t.

The improvement was supported by higher feed grades at Prominent Hill and higher mined and milled volumes at Olympic Dam. This helped balance weaker results from Chile.

BHP kept South Australian copper guidance unchanged at 310,000-340,000t. The stability of this guidance is important because South Australia remains a strategic copper growth region for the company.

Antamina also performed strongly. BHP’s copper output from the Peruvian operation rose by 43% to 44,100t, supported by better feed grades and improved operational performance.

The stronger Antamina result prompted BHP to lift production guidance to 150,000-160,000t from the previous 140,000-150,000t. This upgrade helped offset the Pampa Norte downgrade at portfolio level.

The mixed operating picture explains why BHP maintained total copper guidance. Escondida and Pampa Norte reduced quarterly output, but South Australia and Antamina provided enough support to keep the group’s broader plan intact.

BHP also completed the sale of its Carajas asset to CoreX Holdings on 2 April for $240mn, with up to $225mn in contingent payments. The sale reflects ongoing portfolio management as BHP concentrates capital on larger strategic assets.

For copper markets, the key message is that supply growth remains uneven. Stronger performance at one asset can offset weakness elsewhere, but global mine supply still depends on operational execution across a small number of large producers.

BHP copper production will therefore remain a closely watched indicator through the rest of the fiscal year. The market will focus on whether Escondida grades stabilise, Pampa Norte recovers, and South Australia and Antamina continue to outperform.

The Metalnomist Commentary

BHP’s quarter shows that copper supply risk is increasingly operational, not only geological. Lower grades, weaker recoveries and leach performance can quickly offset throughput gains, keeping the market sensitive to every large-mine update.