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SMM reports that Antofagasta has agreed to spot-indexed sales of copper ore with certain Chinese smelters.

The industry information provider SMM reported on Wednesday that Antofagasta, a Chilean copper miner, has agreed to supply?term copper concentrator supplies to certain Chinese smelters with spot-indexed prices and a floor guaranteed.

The reported deal would be a departure from a long-standing practice in which miners sold term supplies for fixed treatment and refinement charges (TC/RC), which serve as a benchmark globally.

Antofagasta stated that its negotiations are confidential and it does not discuss them with other parties.

The smelters receive a TC/RC from the miners to refine copper concentrate. However, charges on the spot market are incredibly low due to an 'ore shortage.

The smelters are now paying for?processing material and there is increased pressure on the benchmark which has been set at zero until 2026. Some miners have already abandoned this benchmark.

Chinese smelters resisted Antofagasta’s proposal to switch from spot-indexed pricing to term-supply negotiations at mid-year, arguing that it would reduce price certainty.

SMM reported that after Antofagasta demanded the change, both sides came to an "innovative compromise" whereby TC/RCs are linked to an index while also being subject to a floor guarantee.

Antofagasta is not allowed to sell?term concentration at TC/RCs that are below a certain level.

According to the Argus, spot TCs were minus $126.80 per metric ton by the end of last week.

The SMM report didn't say what the floor level would be. Tom Daly reported. Lewis Jackson, Amy Lv and Lewis Jackson contributed to the reporting. Mark Potter (editing)

(source: Reuters)