➀ Japan is investing $660 million in ASSB (All-Solid-State-Battery) R&D aiming for commercialization by around 2030; ➁ Japan holds the most ASSB-related patents globally and has been building a supply chain for mass production; ➂ METI's 'Battery Supply Assurance Program' aims to subsidize $2.24 billion for domestic EV industry chain and ASSB technology development.