Air Liquide inaugurated its first large-scale advanced materials plant in Taichung, Taiwan on March 25, 2026. The facility produces precursors for Atomic Layer Deposition, the process chipmakers use to deposit single-molecule-thick films at sub-3nm geometries. It is currently running at roughly 30 percent of designed capacity, with volume production scheduled to begin in April. The company has invested more than €1 billion in Taiwan since 2019 and operates 54 facilities there dedicated to the semiconductor industry.
The plant's opening was framed as a supply chain resilience play. Air Liquide executive Armelle Levieux said customers had increasingly asked the company to locate production close to their fabs, citing geopolitical risk. Taichung sits near Taiwan's western ports, central enough to serve TSMC and other chipmakers up and down the coast.
The geopolitical logic is real. But the 30 percent utilization rate tells a different story about timing. A facility built to derisk supply chains doesn't open at a third of capacity because demand is surging. It opens thin because the chips those materials are for have not yet reached high-volume production at the nodes this plant supplies. Sub-3nm deposition materials go into processes still ramping.
Then there is the helium problem.
Semiconductor manufacturing consumes helium at multiple stages: to cool the plasma reactors that etch circuits, and to purge toxic residues from wafer surfaces after chemical baths. Helium is a byproduct of natural gas processing, and roughly a third of global supply comes from Qatar. Since the US-Iran conflict escalated, QatarEnergy has declared force majeure to its customers. Last week, Iranian strikes damaged Qatar's largest LNG facility, affecting helium production lines that industry sources say could take years to rebuild. According to Reuters, approximately 200 specialized helium containers are currently stranded near the Strait of Hormuz.
Air Liquide's own executive said at the Taichung opening that the Middle East situation had created an immediate helium shortage. The company plans to reallocate supplies from other regions. Taiwan's Economy Ministry said imports from the US have opened as an alternative route, but the scale of that substitution is not clear.
The irony is precise: the same geopolitical disruption driving fab customers to demand localized materials supply is simultaneously disrupting a byproduct of natural gas they cannot easily replace. Air Liquide has been in Taiwan for nearly 40 years and is a key supplier to TSMC. The Taichung plant is a genuine bet on the island's semiconductor future. Whether that future can run at full capacity depends partly on a gas that has nothing to do with Taiwan and everything to do with whoever controls the Strait of Hormuz.
The plant will produce. Whether it produces enough, for enough customers, before the next supply shock, is the question nobody at the opening was answering.