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ASIA COPPER WOEEK-Sources say Codelco's record China offer sparked threats to walk out.

Amy Lv, Tom Daly and Lewis Jackson

SHANGHAI/LONDON - Codelco, the Chilean copper giant's offers to Chinese copper purchasers are so high that some have declared they will not sign the term contracts for next year as the significance of the benchmark to Chinese buyers is becoming more and more questioned.

Codelco's premium is often used to reference global copper supply contracts. Codelco is by far the world's biggest copper producer, and China is its largest consumer.

According to two sources with knowledge of the situation, Codelco offered Chinese buyers an additional $350 per ton over London Metal Exchange rates. This is a significant increase from the $89 per ton that was agreed upon during negotiations last year.

Sources familiar with the situation say that at least three Chinese customers of Codelco are willing to opt out of term contracts and instead sign spot deals this year.

When asked about the premium, a fourth customer who has not yet received an offer said: "Who would buy at this price?"

Codelco didn't immediately reply to questions emailed about the offers.

The willingness of delegates to forgo the closely-watched term deals highlights growing questions among delegates gathered at the World Copper Conference Asia in Shanghai about the benchmark's relevancy for China.

According to two traders, who spoke under condition of anonymity, the premium for Codelco's copper is partly due to how cargoes can be delivered to the U.S. Comex, where prices are soaring this year. However, for some Chinese customers, that factor may not be as important.

Third trader: The current offer is suited to big trading houses that have easy access to U.S. and can take advantage of arbitrage, which some Chinese traders may struggle to do.

Chinese customs data show that China's imports from Chile of refined copper have been steadily declining since 2023, both in absolute value and as a percentage of total imports. In the first 10 months of 2018, imports reached 255,334 tonnes, which is half the amount of last year.

Fears of a copper shortage next year led to a spike in LME copper prices to peaks of up to $11,200 per ton at the end of October. As of 0703 GMT, the metal was trading at $10 868 per ton.

Codelco is the largest copper miner in the world. It has offered to pay its European customers a record-high premium of $325 per ton for 2026. This represents a 39% increase year-on-year.

Four traders and analysts believe that some Chinese buyers may eventually accept the premiums on bets resulting from a wider arbitrage between London Metal Exchange (LME) and Comex.

One source said, "That level is far above the level that Chinese consumers will accept. Those who accept this level are likely to re-transport their products to Europe or the United States in order to take advantage of the lucrative arbitrage."

(source: Reuters)