Alcoa Closes More Than Half of Capacity at Portland Smelter after Blackout

SHANGHAI, Dec. 2 (SMM) – Alcoa has curtailed production at its Portland smelter after a major power outage. 

The blackout cut power to the smelter’s potlines for more than five hours, and the smelter focused efforts on maintaining production in its second potline, the company said. 

"It is too early to speculate on the full impact of the power outage, or on how long it may take to restore normal operations," the company said in a statement. 
The smelter has annual aluminum capacity of 300,000 tonnes. 

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