Japanese smart toilet manufacturer TOTO has seen a significant rise in its stock price, driven by its high-purity ceramic electrostatic chucks used in chip manufacturing. These components, crucial for holding wafers during production, have become essential amid a surge in memory chip demand. TOTO's precision and industry-leading purity have led to orders booked through 2027, now accounting for over 40% of its operating profit. The global memory chip market is experiencing its most severe supply-demand imbalance in four decades, with major players like Samsung, SK Hynix, and Micron reporting record profits. High Bandwidth Memory (HBM) chips, critical for AI applications, are in high demand, with prices exceeding those of gold by weight. The shortage has led to unprecedented long-term supply agreements requiring upfront payments, signaling a potential shift from cyclical to structural growth in the industry.