來源:[1] FCX投資者通知:自由港麥克莫蘭公司股價下跌 - GlobeNewswire (https://www.globenewswire.com/news-release/20 ...)[2] 坎貝爾銷售額下降,儘管採取了定價行動 - Food Business News (https://www.foodbusinessnews.net/articles/294 ...)[3] 創新低迷拖累採礦生產力下降 — 報告 - Mining.com (https://www.mining.com/innovation-slump-drags ...)