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Aluminum Makers Sound the Alarm About U.S. Magnesium Shortage

There’s a widening scarcity of essential raw materials for aluminum used to make automobiles and building supplies that threatens to worsen a supply squeeze that already has pushed U.S. prices close to all-time highs. 
Bloomberg
By Bloomberg
15 Oct
Operations Inside An Arconic Inc. Aluminum Coil Manufacturing Facility Ahead Of Earnings FiguresAluminum coils sit in a cooling area at the Arconic Inc. manufacturing facility in Alcoa, Tennessee, U.S., on Tuesday, Jan. 24, 2017. Arconic Inc. is scheduled to release earnings figures on January 31. Photographer: Luke Sharrett/Bloomberg

Matalco Inc., the largest U.S. producer of aluminum billet, is warning customers it may curtail output and ration deliveries as soon as next year amid a magnesium shortage.Difficult-to-source supplies of other raw materials and soaring natural gas prices are adding to the challenges, Matalco said in a letter to customers obtained by Bloomberg News.

Alcoa Corp., the largest U.S. maker of raw aluminum, also voiced concerns about magnesium scarcity and has been seeing so-called force majeure declarations by some suppliers. Force-majeure clauses are embedded in sales contracts to allow suppliers to suspend deliveries owing to circumstances outside of their control.

“In the last several weeks, magnesium availability has dried up and we have not been able to purchase our required Mg units for all of 2022,” Matalco said in the Oct. 13 letter. “The purpose of this note is to provide this advanced warning that, if the scarcity continues (and especially if it becomes worse), Matalco may need to curtail production in 2022, resulting in allocations to our customers.”

Matalco and Alcoa both noted that silicon also is in short supply. That shortage, sparked by production cuts in China, sent prices up 300% in less than two months. Aluminum billets can’t be produced without magnesium and silicon, which are essential hardeners for alloys.

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