Cost Pressure Lurking in Record-High Copper Prices for Miners

Copper prices have reached record highs, but investors shouldn't ignore mining costs. High copper prices can mask cost pressure, which is crucial for miners' profitability. The costs of mining, processing, and shipping each pound of copper determine how much profit a miner keeps as cash.

Hudbay Minerals (TSX:HBM) reported a consolidated cash cost of negative US$0.40 per pound of copper in Q2 2026 due to its gold output. The company's costs are tied to fuel prices, local currencies, and ore grades. Ero Copper (TSX:ERO), on the other hand, has costs dependent more on ore grade and the Brazilian real.

Hudbay's reliance on gold is a risk factor as it depends on high gold prices staying stable. If gold prices fall sharply, reported copper costs would rise, even if nothing changes at the mines. Ero Copper's expected cost reduction may not materialize if Caraíba's grades do not improve or the Brazilian real stays strong.