Helium

1. What Helium Is and What It Does

Helium (He, element 2) is a noble gas — chemically inert, the second lightest element, and the coldest substance on Earth at its boiling point of -269°C, just four degrees above absolute zero. Those physical properties are not incidental. They are exactly what make helium irreplaceable in the applications that depend on it.

In semiconductor fabrication, helium does work no other gas can perform. During wafer cooling, helium transfers heat away from silicon wafers with a thermal conductivity (the rate at which a material conducts heat) no alternative gas approaches at cryogenic temperatures. In CVD (chemical vapor deposition — a process that deposits ultra-thin material layers onto a wafer by exposing it to reactive gases), helium serves as the carrier gas that moves precursor chemicals into the reaction chamber without contaminating the process. In ALD (atomic layer deposition — a more precise version of CVD that deposits material one atomic layer at a time), helium purges the chamber between deposition cycles, preventing unwanted reactions.

In EUV lithography (extreme ultraviolet lithography — the process that prints the smallest features onto leading-edge chips below 7nm), helium fills the optical path itself. The extreme ultraviolet light source must operate in a helium atmosphere because any other gas absorbs the light before it reaches the wafer. TSMC, Samsung, and Intel's most advanced nodes cannot operate without it.

Outside semiconductor fabrication, helium's applications follow the same physical logic. MRI machines (magnetic resonance imaging scanners used in hospitals) use liquid helium to cool the superconducting magnets that generate their imaging fields to near absolute zero — the only temperature at which those magnets function. Approximately 20% of global helium demand comes from MRI applications. Fiber optic cable manufacturing uses helium to cool the glass fiber immediately after it is drawn, preventing surface defects that would degrade signal transmission — approximately 8–9% of demand. Lifting gas applications account for approximately 15% of demand.

The substitution problem is structural, not temporary. No other gas combines helium's thermal conductivity, chemical inertness, and boiling point. Hydrogen conducts heat comparably but is explosive. Nitrogen is inert but freezes solid at temperatures helium handles routinely. In semiconductor applications specifically, the combination of properties is non-negotiable.

The supply constraint is equally structural. Approximately 80% of global helium is co-produced with natural gas during LNG processing — helium is separated from the gas stream as a byproduct, not extracted intentionally. This means helium supply is permanently coupled to LNG production decisions, not helium demand. When LNG plants halt, helium supply halts with them. No dedicated helium mine can be opened to fill the gap. The supply response to a shortage is constrained by an entirely different industry's production schedule.

2. The Supply Chain

Global helium supply is concentrated across four producing regions. The United States has historically supplied approximately 40% of global output, primarily from natural gas fields in Kansas, Oklahoma, and Wyoming. Qatar, through its Ras Laffan Industrial City complex, supplied approximately one-third of global helium before the mid-March 2026 disruption — making it the world's largest single export source. Russia's Amur Gas Processing Plant produced approximately 18 million cubic metres in 2025, representing approximately 9.5% of global output and growing. Algeria supplies approximately 5.8% of global production.

Global helium demand runs at approximately 6–6.5 billion cubic feet per year.

Two simultaneous supply constraints are currently active.

The first is physical. Ras Laffan Industrial City — Qatar's helium processing complex — halted in mid-March 2026. The disruption has been confirmed by ChemAnalyst and IMARC. It is not expected to restart before late summer 2026. Qatar's one-third share of global supply cannot be rerouted or replaced on any near-term timeline because helium co-produced with LNG cannot be sourced from a different facility on demand.

The second is policy. On July 10, 2026, China issued a blanket export ban on helium under joint Ministry of Commerce and Customs notice, customs commodity code 2804290010. The prohibition is temporary in designation but carries no end date, no exemptions, and no transition period. The ban restricts outflows through Chinese purification, packaging, and distribution channels.

China's position in the helium supply chain is unusual. China produces approximately 15% or less of its own helium and imports the majority from Qatar and Russia. The export ban therefore restricts not Chinese-produced helium but helium that has moved through Chinese distribution infrastructure. This is defensive hoarding in the context of a global shortage China is simultaneously experiencing and contributing to.

Russia is filling part of the gap in Asian markets, pricing Amur volumes at approximately $310/Mcf against approximately $470/Mcf for Qatari volumes. That discount is gaining market share across Asia, including China. Russian supply is subject to Western sanctions constraints and is not investable from most Western jurisdictions.

The three major Western industrial gas distributors — Air Liquide, Linde, and Air Products — have implemented allocation protocols, prioritizing long-term contract customers under current supply conditions. Spot market buyers face $500–1,200/Mcf against approximately $119/Mcf contract pricing in Northeast Asia and approximately $56/Mcf in North America.

3. Why It Matters Right Now

The semiconductor fabs running WF6 through tungsten deposition steps also run helium through cooling and purge cycles. These are not separate supply chain problems. They are the same supply chain, tightening under multiple simultaneous constraints in the same week.

AI infrastructure is the demand driver. Semiconductor demand for helium is growing 6–12% annually, driven by AI chip manufacturing. HBM (high bandwidth memory), advanced logic nodes, and 3D NAND all require helium at multiple process steps. The buildout that is driving record TSMC revenue is the same buildout placing new demand on a helium supply chain that is simultaneously disrupted at the physical and policy layer.

EUV lithography is the most direct constraint. The light source in every EUV machine must operate in a helium atmosphere. TSMC's CoWoS packaging capacity — the sole commercial source of advanced AI chip packaging — runs on EUV. A sustained helium shortage does not slow EUV-dependent production gradually. It stops it.

Allocation protocols are already active. Air Liquide, Linde, and Air Products are prioritizing long-term contract customers. Semiconductor fabs with established contracts are protected in the near term. Spot market buyers — including hospitals and research institutions that cannot access long-term contracts — face $500–1,200/Mcf against contract pricing of $119/Mcf in Northeast Asia. The gap between contract and spot is the shortage made visible in price.

4. The Semiconductor and Defense Intersection

The chips that require helium for EUV lithography are the same chips US defense procurement will need domestically sourced by January 1, 2027 under DFARS 252.225-7052. The regulation applies to US defense procurement only — but the supply chain it requires runs through the same fabs that are now managing helium allocation alongside WF6 disruption.

The constraint compounds. A fab managing helium allocation is a fab that cannot freely scale production. A fab that cannot freely scale production is a fab that cannot meet the domestic sourcing timelines the defense procurement system requires. The DFARS deadline does not move. The helium supply chain does not have a recovery timeline. The two constraints are not independent — they are running on the same clock.

TSMC's CoWoS packaging capacity — the primary bottleneck for AI chip packaging and the same capacity defense electronics increasingly depends on — runs on EUV. EUV runs on helium. The physical dependency chain from helium to CoWoS to defense electronics is not theoretical. It is the production constraint active today.

5. What the Price Has Done

Helium does not have a publicly available spot benchmark. It trades on long-term contracts between producers and end users, with pricing opaque to the broader market. That opacity is itself a signal — when prices cannot be discovered, allocation replaces price as the rationing mechanism.

The contract-to-spot spread under current conditions makes the shortage visible. Northeast Asia contract pricing runs at approximately $119/Mcf. North America contract pricing runs at approximately $56/Mcf. Spot market pricing under current allocation conditions runs at $500–1,200/Mcf — a 10–20x premium over contract rates depending on region and urgency.

That gap is not a normal market premium. It is the cost of not having a long-term contract in a supply-constrained market. Semiconductor fabs with established long-term contracts are protected in the near term. Everyone else — hospitals, research institutions, smaller industrial users — is paying spot. The gap between $119/Mcf and $1,200/Mcf is the shortage, made visible in price.

Historically, Grade A helium wholesale pricing ranged from $400–1,000/Mcf. The US Defense Logistics Agency evaluated bulk pricing at $1,080/Mcf in 2023. NASA signed a five-year supply contract at $918/Mcf in 2022. Those figures predate the current simultaneous disruption of Qatar and China. Current spot pricing reflects a market where two of the four major supply regions are simultaneously constrained.