From toilets to seasoning suppliers: Which companies did AI supply-chain spillover help boost?

As the benefits of the artificial intelligence wave continue to spread, from Nvidia to tech giants such as TSMC, Japanese companies that make toilets—and a food group that started with MSG—have quietly emerged as hidden winners in this AI infrastructure boom. Their rise has exposed a key trend: the spillover effect of value across the AI supply chain has long penetrated traditional manufacturing industries, sparking even more diverse transformation opportunities.

Toilet manufacturer TOTO: Ceramic technology unexpectedly hits semiconductor process demand

Japanese bathroom giant TOTO is known globally for high-quality toilet seats, with more than 40 years of focus on ceramic manufacturing. Yet it is this traditional craft, seemingly unrelated to technology, that has found a brand-new stage in semiconductor process manufacturing.

TOTO recently announced that it will use its expertise in ceramic technology to produce electrostatic chucks used for chip manufacturing. The news sent its stock price soaring 18% in a single day, hitting a five-year high; over the past six months, it is up more than 63%.

（TOTO shares surge 40%, with investors praising it as the most undervalued AI stock—basically the Nvidia of the toilet world）

As an indispensable key component in wafer fabrication processes, an electrostatic chuck is responsible for precisely fixing silicon wafers during processing, while also serving transportation and cooling functions. Especially in high-temperature plasma processes, its stability directly affects yield.

With AI compute demand continuing to surge, global demand for advanced chips remains high, driving a major increase in procurement of front-end process equipment and consumables. Against this backdrop, TOTO’s ceramic chucks have also drawn market attention.

Ajinomoto, MSG pioneer: From table seasoning to the core of AI chip packaging

Another unexpected case is Japanese food group Ajinomoto. This century-old company, known for producing MSG and various food seasonings, has long been a key part of the semiconductor industry chain—only, before the AI wave arrived, this role had not drawn much attention.

There is a single thin-film material required by every AI chip on earth. GPUs, TPUs, custom ASICs. All of them. 98% of global supply controlled by one Japanese chemical company. Zero production-ready alternatives. One producer fully booked through 2027. Raising prices. Lead times…

— SemiAnalysis (@SemiAnalysis_) April 28, 2026

Benefiting from being widely covered since February this year, its stock price (TYO: 2802) has risen more than 46% year-to-date.

Through the chemical materials technology it accumulated in producing amino acids (MSG’s main ingredient), Ajinomoto has spawned a product called ABF substrate (Ajinomoto Build-up Film). ABF is the core thin-film material for advanced packaging technology. As the insulating layer between chips and circuit boards, it is critical for high-density, high-performance AI chip packaging.

At present, the global ABF substrate market is almost exclusively dominated by Ajinomoto. As Nvidia GPUs and various AI accelerator chips continue to ship, Ajinomoto’s revenue has also grown significantly.

(Semiconductor analyst bullish on the AI market: “At least another three years”: advanced packaging is the industry bottleneck)

Repricing traditional technology: the hidden supply-chain revolution of the AI era

The cases of TOTO and Ajinomoto reflect a snapshot of a “revaluation of technology” phenomenon that is currently taking place. The expansion of AI infrastructure sets extremely high requirements for material purity, machining precision, and chemical stability. Paradoxically, this gives traditional companies that have spent decades deepening expertise in specific manufacturing processes competitive advantages that are difficult to quickly replicate.

This supply-chain value spillover effect serves as a reminder to investors and industry observers: the true battleground of the AI race may not be limited to Nvidia’s GPUs or TSMC’s wafer fabs—it may extend to every link in the entire materials, process, and equipment ecosystem.

From bathroom ceramics to food chemistry, AI is redefining the boundaries of “tech companies.” At the same time, even the most overlooked traditional crafts have transformed into the hottest core assets of the new era.

This article, From toilets to seasoning suppliers: which companies got a boost from AI supply-chain value spillover? was first published on Lian News ABMedia.