Tokyo: European and Japanese officials have spent 2026 building a working relationship on critical minerals that never passed through a ratification chamber and never will. Ministers upgraded their economic security working group this year, added technology transfer risk assessment to its remit and started running matchmaking sessions to pair Japanese capital with strategic projects designated under the EU’s Critical Raw Materials Act. None of that required a treaty. All of it changes where refined lithium and separated rare earths will come from.
The logic is arithmetic before it is geopolitics. The Critical Raw Materials Act sets 2030 benchmarks of ten percent extraction, forty percent processing and twenty-five percent recycling inside the Union, and caps reliance on any single third country at sixty-five percent of a strategic material. Japan reached similar conclusions two decades earlier, after Beijing restricted rare earth exports in 2010, and built stockpiles, recycling capacity and equity stakes in foreign mines while Europe was still writing strategy papers. Brussels is now buying experience as much as tonnage.
What Japan gets is scale and legal cover. Japanese processors have technology that European projects need and a domestic market too small to justify the plants alone. European permitting under the strategic projects regime shortens approval timelines that otherwise run past a decade, which is the single variable that kills mineral investment. Pairing the two solves a problem neither side solves separately, and reporting from Brussels suggests both capitals now treat the working group as the operational core of the relationship.
The weakness is architecture. Analysts at ISPI have argued that the accords stack up without a governing framework, so supply-chain resilience, technology standards and crisis response each sit in separate instruments with separate reporting lines. That works while officials are cooperative and fails the first time an export restriction arrives on a Friday afternoon. A joint roadmap with a named crisis mechanism would cost little and would tell industry who picks up the phone.
There is a harder question about outbound controls. Assessing technology transfer risk sounds procedural until it means telling a European toolmaker it cannot license a process to a Japanese joint venture with Chinese shareholders. Japan runs tighter outbound screening than most member states and has been willing to align with American export controls on semiconductor equipment. Several European capitals have not, and the Commission lacks competence to force them. Cooperation on paper can outrun cooperation in law.
Sceptics also point out that neither partner controls the chokepoint. China processes the overwhelming majority of the world’s rare earths and holds the separation chemistry that makes them usable. Diversifying extraction without diversifying refining moves the dependency one step upstream and calls it resilience. Both governments know this, which is why the matchmaking sessions concentrate on processing and recycling rather than mines.
Judged against the alternative, the informal route looks sensible. A binding minerals treaty would take five years to negotiate and another two to ratify, and the 2030 benchmarks fall inside that window. Working groups deliver plants faster than parliaments deliver texts. The risk is that a relationship built on ministerial goodwill inherits whatever happens to the ministers, and neither Brussels nor Tokyo has written down what survives a change of government.
