Critical Raw Materials for Strategic TechnologiesThe European Commission's foresight study on critical raw materials for strategic technologies and sectors is very informative:
https://ec.europa.eu/docsroom/documents/42881/attachments/1/translations/en/renditions/native
See the cover page graphic and another on page 81. Here is a brief excerpt from page 77:
The main concerns about the ultimate future supply capacities for selected material are the following. For REEs (dysprosium, neodymium and praseodymium), end-users outside
of China will remain vulnerable on China’s dominance of the global rare earth value chain (mining, oxides, metals, alloys and magnets) in the foreseeable future. The rising annual demand for neodymium and dysprosium globally will significantly exceed global annual production by 2030. After the depletion of historically accumulated reserves, shortages are foreseen in case additional sources of supply are not developed (Adamas Intelligence, 2019). Dysprosium is more vulnerable to supply deficit due to its low natural relative proportion in most REE ores.