The pause of the export restrictions on rare earths and magnets will be a particular relief to many places, including the European Union and India, which had been caught in the crossfire. Mr Xi made his point with the measures: There is no real way to keep high-tech manufacturing going without these items, and, if they are required, then countries have no alternative but to go through Chinese suppliers. Additional sources will have to be developed, and soon — but the fact is that China’s dominance in this supply chain has been understood since at least 2010, when it used similar restrictions against Japan. And no action, whether national or plurilateral, has been taken to address it yet.