China ranks as the world’s largest consumer of copper. Photo: Yin Chao/VCG/Getty ImagesA prolonged slide in copper prices is challenging the world’s shift to renewable energy sources. Mining firms will need to dig up gigantic amounts of new copper over the next several years to supply the transition to renewables. But demand is slumping right now from manufacturers and builders who use the metal in everything from electrical wire to roofing.

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Persons: Yin Chao Locations: China