Copper smelters are facing both market and pricing crises: Andy Home

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By Andy Home Copper smelters are now so desperate to find raw material they are paying miners for converting their concentrates into refined metal. So-called treatment and refining charges (TCRC) should be a core revenue stream for copper smelters but spot charges have been negative since the start of the year and the mid-year negotiations have also kicked off with a negative number. Low treatment charges feed copper's perennial bull narrative of too little mine supply but the current implosion in processing fees is as much about too much demand from too many new smelters. The imbalance looks unsustainable, particularly if smelters accept a negative charge for the mid-year talks, which set the price for much higher volumes than the spot market. But equally unsustainable is the copper industry's preference for pricing concentrates on an annual or semi-annual basis. ACID LIFELINEThe good news for smelters is that spot treatment charges appear to have stopped falling. The bad news is that they have done no more than stabilise at $-45 per ton (TC) and -4.5 cents per lb (RC) level, according to Benchmark Mineral Intelligence. Smelters which chose to lock in tonnages over the full year are partly insulated but this year's benchmark terms of $21.5 per ton were also the lowest in at least 20 years. The mid-year negotiations look likely to generate a still lower outcome, although smelters will understandably balk at locking in a negative TCRC for contracts that could run into 2026. Smelters have a couple of financial life-lines in the form of valuable by-products such as gold and silver. They also produce sulphuric acid, which has been rising sharply in price in China thanks to demand from the phosphate fertilizer industry. But a copper smelter's main source of income should really be copper, which is clearly not the case right now. TOO MANY SMELTERSIt's not as if mines haven't been increasing production. Global output rose by 2.1% in 2023, 2.8% in 2024 and by another 1.2% in the first quarter of this year, according to the International Copper Study Group. China's imports of copper concentrates have been running strong, hitting a new annual high of 28.2 million tons bulk weight last year and up 7.5% year-on-year in the first four months of 2025. It's just that too much Chinese smelting capacity has been brought on line too quickly with newcomers chasing down avai...

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