Glencore will own nearly three-quarters of PolyMet Mining after the completion of a stock offering, gaining majority control of what could be Minnesota's first copper-nickel mine.
Glencore's stake in PolyMet went from 29% to 71.7% after a shareholder rights offering. PolyMet released the results of the offering Thursday.
Switzerland-based Glencore, a global mining giant, has been a partner of PolyMet since 2008 and has largely financed the company's efforts.
PolyMet held the shareholder rights offering to raise $265 million, mostly to pay off loans from Glencore.
"This has been a great success," said Bruce Richardson, a PolyMet spokesman. "We are able to clear our balance sheet of debt and will get on with our construction financing."
But Paula Maccabee, the lawyer for Minnesota-based WaterLegacy, called Glencore's majority role a "debacle."
She said she's concerned that Glencore is not on any of the PolyMet permits, nor does the name "Glencore" appear in the financial assurance deal the state signed with PolyMet in its permit to mine.
"Glencore is not responsible for any [of PolyMet's] mine treatment, financial assurance or any liability for mine toxic pollution or a catastrophic dam failure at the tailings waste disposal facility," Maccabee said.