Even Goldman Sachs - the most consistently negative voice on copper over the past couple of years - has turned more positive, conceding the 23m-tonne-a-year market will be broadly balanced this year.
甚至过去两年内对铜发表最坚定负面看法的高盛(GoldmanSachs)也变得更为乐观,承认这个每年2300万吨的市场今年将大致达到平衡。