KEK has been working on the realization of the International Linear Collider (ILC) in Japan, together with ILC-Japan, a community organization under the Japan Association of High Energy Physicists (JAHEP), the ILC International Development Team (IDT) established by the International Committee for Future Accelerator (ICFA), and other supporting organizations around the world. In June 2021, IDT published the “Proposal for the ILC Preparatory Laboratory (Pre-lab),” which proposes an outline of the organizational framework, an implementation model, work plan and required resources for the preparatory phase of the ILC. At the same time, KEK and JAHEP submitted a report to the Ministry of Education, Culture, Sports, Science and Technology (MEXT) that summarizes progress on ILC activities over the past three years. In response to these developments, MEXT organized an expert panel in July 2021 for discussions to evaluate the progress of the ILC activities. On 14 February, the panel issued their recommendations, pointing out following five main points: — more
