- This Is Wall Street’s Preferred Stock Amid Copper Chaos Barron’s
- Copper Surges as Freeport Mine Accident Clouds Global Supply Outlook The Wall Street Journal
- What Freeport’s Mud Rush Disaster Means For Its Stock Yahoo Finance
- Accident at World’s Second-Biggest Copper Mine Strains Market Bloomberg.com
- Freeport declares force majeure at Grasberg, expects lower copper, gold sales Reuters
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