Air Liquide — AI supply-chain exposure

Air Liquide is one of the world's largest suppliers of industrial, medical and specialty gases, and its relevance to AI runs through its Electronics arm. That segment produces the ultra-high-purity gases, carrier gases, CVD and ALD precursors, etchants and cleaning chemistries that are process-critical inputs at essentially every node of chip fabrication. It makes none of the chips, memory or packaging itself, but the foundries, memory makers and advanced-packaging fabs building GPUs and HBM cannot run their tools without a steady, on-site flow of its gases.

The hook is embeddedness through long-term supply. Fabs depend on uninterrupted, purity-guaranteed delivery, so Air Liquide signs multi-year contracts and often builds dedicated on-site plants — a position that is sticky and hard to displace once a fab is qualified on its chemistry. That gives it steady exposure to fab expansion for AI chips across several regions, without the cyclicality of selling capital equipment. Its limit is that gases are a small, essential slice of fab cost — critical to yield, but a supplier's economics rather than a chipmaker's pricing power.