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Energy supply threats, European debt proposal, and nickel goes vertical.

Ukraine and Russia said they would make their fourth attempt today to establish humanitarian corridors for civilians to flee areas of heavy fighting. President Volodymyr Zelenskiy indicated he is willing to discuss the future of separatist areas while saying he’s not prepared for ultimatums. Meanwhile, U.S. lawmakers announced the outline of bipartisan legislation to ban imports of Russian oil, and Russian Deputy Prime Minister Alexander Novak warned his country could cut gas supplies to Europe.