Core Viewpoint - TOTO's stock price experienced its largest increase in five years, rising by 11%, driven by expectations surrounding its chip materials business due to the expansion of AI data centers [1][2]. Group 1: Company Overview - TOTO, known for its smart toilets, has been producing precision ceramics for chip manufacturing since 1988, becoming a significant part of the semiconductor and display supply chain [3]. - The precision ceramics used by TOTO are comparable in strength to metals but are lighter and can withstand higher temperatures during chip manufacturing [3]. Group 2: Market Impact - The recent surge in TOTO's stock is attributed to the demand for its electrostatic chucks, which are used in NAND chip manufacturing and are expected to benefit from the growing needs of AI infrastructure [2]. - Analysts from Goldman Sachs indicate that the tight supply-demand dynamics in the memory industry will contribute to significant profit growth for TOTO [2]. Group 3: Financial Projections - As of March 2025, TOTO's new business segments are projected to account for 42% of its total operating revenue [5]. - A representative from TOTO stated that the construction of AI data centers is anticipated to further increase the demand for its electrostatic chucks [5].