Anglo American's third-quarter production report on 20 October 2026 showed lower copper, iron ore and diamond output, while the company said its Merger with Teck remained on course for completion by March 2027.

What happened

The diversified miner, ticker LSE:AAL, is a constituent of the FTSE All-Share index and sits in the industrial metals and Mining sector. It has issued no trading news today. Its filings since the report have been a board responsibilities change on 22 October and a total voting rights notice on 2 November.

The figures below come from an AI-generated summary on, because the page retrieved did not carry the report's full text. Readers should check them against the original. (LSE:AAL)

According to that summary, copper production fell 5% from a year earlier to 175,000 tonnes, reflecting weather in Chile and lower ore grades, though Quellaveco rose. Premium iron ore fell 4% to 13.8 million tonnes, affected by a module tie-in at Kumba.

Manganese ore bucked the trend, rising 6% to 1,031,400 tonnes. De Beers produced 6.8 million carats, down 11%, because of planned maintenance and a slowdown at Venetia.

Guidance and portfolio changes

The more notable changes concern outlook. De Beers' 2026 production guidance was raised to 25 to 28 million carats, and its unit cost guidance was reduced to about $70 a carat. Copper Peru's unit cost guidance improved to about 50 cents a pound.

Corporate activity continues in parallel. The sale of the steelmaking coal business, with value of up to $3.875 billion, is on track for completion in the first quarter of 2027, according to the summary. An agreement over that sale was announced on 18 May. Anglo American and Codelco announced that they had completed an agreement on 24 June, and the future executive Leadership team with Teck was announced on 30 July.

Why it matters for investors

Our analysis is that investors are being asked to weigh a weaker quarter against a much larger structural shift. With the merger and the coal sale both pointing to completion in early 2027, the group's shape is set to change within months.

A 5% fall in copper matters because copper is central to the combined company's case, and the summary links the fall to weather and grades. Weather would ordinarily be a passing factor, while lower grades can last longer, so the distinction matters when judging the next few quarters.

The De Beers changes are harder to read. A higher production range sits alongside a third-quarter fall in output, and the summary does not explain the reasoning. Investors may wish to consult the full report on this point.

How the shares have performed

A current share price could not be retrieved for this article, so none is given. The page shows only the historical 737p listing price from 1999, which is not useful for judging the present level. Readers should consult a live quote.

The Dividend reinvestment plan results on 14 October and the sterling and euro dividend rates on 14 September relate to the most recent dividend, though the amounts were not reviewed.

What to watch next

Regulatory and other approvals for the Teck merger are the main item ahead of the March 2027 target. Completion of the steelmaking coal sale in the first quarter is next.

The fourth-quarter production report and full-year results will also follow, though their dates were not retrieved. Copper in Chile will be the first place to look for evidence on whether the third quarter's issues have eased.