Rio Tinto has declared force majeure on shipments of copper cathode and acid from its Kennecott copper operation after the closure of the smelter at the site last week, the company told Fastmarkets.
According to the global mining and metals producer, the closure occurred after the release of molten copper from the smelter in Utah, in the United States, on September 21."The work needed to safely restart operations at the smelter...