The artificial intelligence investment theme in Japan is widening beyond the semiconductor supply chain to include manufacturers of toilets, glass fiber, and food seasoning.

These companies are emerging as beneficiaries of the AI boom as data center construction drives demand for specialized infrastructure and materials.

Toto, a leading manufacturer of bathroom fixtures, is among the firms seeing investor interest due to its role in supplying high-efficiency water systems for data centers.

The company's relevance stems from the critical need for cooling and water management in high-density computing facilities.

Similarly, producers of glass fiber are gaining traction as their materials are essential for the construction and insulation of data center infrastructure.

The shift reflects a broader rotation in Japanese equities, where investors are moving from traditional value stocks to growth-oriented names tied to the AI hardware race.