Given its key role in the global transition to renewable energy sources, copper has been officially classified as a critical mineral in the eyes of the U.S. Department of Energy (DOE). There are stringent requirements when it comes to the critical mineral classification. According to the U.S. Geological Survey, it must meet three criteria: It [...] The post 2 ETFs to Ponder After Copper’s Inclusion as a U.S. Critical Mineral appeared first on ETF Trends .