Thousands of years ago, deep in the forests of Poland, someone dropped a copper dagger. Now, it’s been found by chance near the city of Korzenica. Not only is the 4,000-year-old dagger a rare ...
Chinese smelters face overcapacity, tightening feedstock Smelters may discuss output cuts on March 31, sources say Treatment charges for copper concentrate hit record lows BEIJING, March 21 ...
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