5月23日 - ** 铜矿商股价上涨，追随红色金属的价格
** 伦敦金属交易所三个月基准铜CMCU3上涨1.2%，报每公吨9617美元
** 受美元走软以及对刚果一个大型矿山出现问题的担忧提振，铜价上涨 (link)，创下三个多星期以来的最高点。
** 刚果民主共和国的卡莫阿-卡库拉（Kamoa-Kakula）铜矿是非洲最大的铜矿，也是世界上最大的铜矿之一。
** 在美国上市的全球矿业巨头力拓RIO.N和必和必拓集团BHP.N的股价分别上涨 ~1%和 1.1
** 铜矿商 Southern Copper SCCO.N 和 Freeport-McMoRan FCX.N 分别上涨 1.9% 和 2.8%
** 加拿大矿商Hudbay Minerals HBM.TO 涨 2.2%，Ero Copper ERO.TO 涨 1.5%，Teck Resources TECKb.TO 涨 1.4
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