Smelter in Copper Cliff placed in standby mode | Mid …
"I can confirm that on Nov. 10 Vale began safely ramping down operations at the Copper Cliff Smelter to a 'hot' standby state (meaning the furnace is not completely shut off) for two weeks to optimize the concentrate stock levels under production at our Sudbury mines and mill," said Danica Pagnutti, corporate affairs specialist with Vale.