TOKYO — Prices of rare-earth metals have reached record highs in the weeks since China clamped down on exports of the key materials used in electric vehicles, wind turbines and other items amid a tit-for-tat trade war with the U.S.
The price of dysprosium in Europe — the benchmark for the material outside China — tripled from the start of April to $850 per kilogram as of Thursday, according to Argus Media. Terbium increased to $3,000 per kilogram from $965.