Bit by bit, Western companies and governments are reassembling their rare earths supply chain, trying to reverse decades of the hollowing out, outsourcing, and offshoring of the critical industry to China. No one said this would be easy. Advertisement This month brought a promising development: new investment in a Norwegian rare earths processing firm. It’s a vital cog in the eventual establishment of a transatlantic supply chain spanning Canada, Sweden, and Norway. If successful, the initiative will help the West chip away at its near-total reliance on China for rare earths, a group of 17 metals that are critical for...