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Physical data center construction draws on industrial supply chains that have nothing to do with semiconductors.
Three Japanese manufacturers making toilets, glass fiber, and MSG have become significant beneficiaries of the AI boom, a pattern that shows how construction-phase spending distributes far beyond what chip headlines capture.
The materials layer beneath the compute stack Large AI infrastructure requires physical inputs at every layer: thermal systems, structural materials, optical networking, and specialty chemistry.
Japan's manufacturing sector runs deep in several of these categories. That depth is part of what places a toilet maker in the same beneficiary group as a glass fiber producer.
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