Shares of Japanese companies Toto, Nittobo, and Ajinomoto have experienced significant rallies this year, with gains of 78%, 63%, and 61% respectively, as their AI-linked business segments saw sharp growth driven by the global AI boom [1]. While these firms are traditionally known for products such as high-end toilets (Toto), textiles and glass fiber (Nittobo), and MSG seasoning (Ajinomoto), they have leveraged their core technologies to become key suppliers in the semiconductor supply chain [1].
Toto manufactures ceramic electrostatic chucks used in semiconductor manufacturing equipment, which are critical for holding silicon wafers during the etching process. In its full-year results for the period ending March 31, Toto reported a 34% increase in annual revenue and a 42% jump in operating profit in its advanced ceramics business, offsetting declines in its core housing equipment segment [1]. The company emphasized that while the advanced ceramics business is a high-growth area, it intends to maintain a balanced approach and has "absolutely no plans" to pivot away from its housing equipment business, citing the volatility of the chip sector [1].
Nittobo, whose electronic materials are already a mainstay, supplies advanced glass fiber used in semiconductor package substrates, further benefiting from the AI-driven surge in semiconductor demand [1]. Ajinomoto produces insulating material known as "build-up film" or ABF, which is essential for semiconductor packaging in high-performance computers and data-center servers [1]. All three companies reported sharp growth in their semiconductor-related businesses for the full financial year ended March 31, underscoring the broad impact of the AI boom on sectors beyond traditional technology [1].
The market reaction has been strong, with investors recognizing the strategic importance of these companies in the AI supply chain, despite their non-tech core businesses [1].
CONCLUSION
Toto, Nittobo, and Ajinomoto have emerged as unexpected beneficiaries of the AI boom, with their shares posting substantial gains due to their critical roles in the semiconductor supply chain. Their financial results highlight the expanding influence of AI across diverse industries, and their balanced strategies suggest continued participation in both traditional and high-growth markets.