Sumitomo Bakelite (4203.T) is identified as a critical AI supply chain bottleneck due to its 90% market share in EME-G epoxy resin used for Nvidia HBM stacks. The analyst projects a "three-bagger" return over 18 months, driven by a potential P/E multiple expansion from 14x to 38x as the company re-rates toward AI infrastructure. Increased resin demand from Nvidia’s upcoming Feynman and Rubin Ultra architectures is expected to trigger supply shortages and significant price hikes by Q3 2026.