Southwire Co., the privately-held wire and cable manufacturer, has asked a U.S. court to review a regulatory decision that cleared the way for BlackRock’s planned exchange-traded fund backed by copper.

The Carrollton, Georgia-based company said that the order by the Securities and Exchange Commission in February will “lead to an investor-financed squeeze of the market” for copper, according to a petition dated April 18 with the U.S. Court of Appeals in Washington. The company said it will seek to have the SEC decision vacated.

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