On 22 November 2025, the Japan Fair Trade Commission (JFTC), the Ministry of Economy, Trade, and Industry (METI), and the Ministry of Land, Infrastructure, Transport, and Tourism (MLIT) announced the publication of a “Casebook on Economic Security and the Antimonopoly Act” (Casebook). The Casebook compiles 15 hypothetical cases that may arise as a result of increasing economic security awareness in Japan. These cases include information exchanges with foreign firms on acquisition proposals, technology offers from…