节点：中游（冶炼、中间品）位置：中游情绪：利空参考度：7/10
5月20日，世界金属统计局（WBMS）发布最新市场报告。数据显示，2026年3月，全球精炼铜产量达227.92万吨，同期消费量为213.57万吨，市场呈现供应过剩态势，过剩量为14.35万吨。
从累计数据来看，2026年1-3月，全球精炼铜产量累计680.5...累计供应过剩规模扩大至45.14万吨，显示一季度精炼铜市场整体供过于求格局持续。
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