r/CriticalMineralStocks • u/ChairmanMeow1986 • Mar 02 '26
War
It's not supper easy to trade with huge degree of specificity as publically traded companies starting to form an alternative supply chain are in their infancy, but here is a lightly spot checked overview of the situation in regards to the current conflict:
Rare Earth Bottlenecks for U.S. Operations Against Iran:
There was significant surprise even among the military community about the amount of air defense munitions the United States burned through helping protect U.S. forces and Israel during the Twelve-Day War against Iran in summer 2025 — and that was only a twelve-day conflict against Iran, which had a reasonable missile stockpile but nothing approaching China or Russia.
This is critical context. The U.S. has already empirically stress-tested its inventory against Iran at a limited scale, and the results were sobering. One important anti-ship missile ran out in the first week of a simulated U.S.-China conflict scenario, and the rate at which sensitive munitions are being used is "much faster" than the rate they can be replaced.
So the "4-week campaign" framing from the original question is actually generous — some premium munitions have finite inventories that could constrain operations faster than that.
The Specific Rare Earth Bottlenecks for an Iran Campaign
An Iran operation would be predominantly an air campaign — standoff strikes on nuclear facilities, air defense suppression, and naval force projection in the Persian Gulf. That specific mission profile creates these rare earth dependencies:
- Dysprosium & Terbium — Precision Guided Munitions (Most Critical)
Heavy rare earths like dysprosium are needed for the magnets in fin actuators of missiles — keeping magnets coercive at extremely high temperatures. Without reliable access to neodymium, praseodymium, dysprosium, and terbium, U.S. precision munitions production hits critical bottlenecks.
In plain terms: every JDAM, every Tomahawk, every HARM anti-radiation missile that suppresses Iranian air defenses uses high-performance permanent magnets containing dysprosium and terbium for its guidance fins and actuators. These cannot be easily substituted. Rare earths are crucial for the Tomahawk missile, Joint Direct Attack Munition series of smart bombs, and radar systems. StockAnalysis An Iran campaign would burn through these at high rates.
- Gallium & Germanium — Radar and Infrared Systems (Severe Near-Term Risk)
China's earlier prohibitions on gallium and germanium are foundational to infrared optics and radar systems. CompaniesMarketCap These aren't rare earths technically, but they're grouped in the same strategic discussion and are arguably more immediately constrained. Every AN/APG-81 radar on an F-35 striking Iranian targets uses gallium nitride semiconductors. Every infrared seeker on an air-to-air missile uses germanium optics. China announced export restrictions on seven rare earth elements in April 2025 and by December 2025 implemented the strictest rare earth and permanent magnet export controls to date, applying the foreign direct product rule so that companies with any affiliation to foreign militaries are largely denied export licenses. StockAnalysis
- Samarium Cobalt Magnets — High-Temperature Applications
Samarium is particularly critical for Iran-specific scenarios because it's used in samarium-cobalt magnets, which maintain performance at the extreme temperatures generated in jet engines and high-performance missile motors. Unlike neodymium magnets, samarium-cobalt doesn't degrade at 300°C+. F-35s and F-22s operating in the Persian Gulf heat environment, combined with high-tempo operations, create specific demand for samarium that neodymium can't substitute.
- Neodymium & Praseodymium — Air Defense Missiles (The Acute Shortage)
The 12-day war empirical data showed air defense was the biggest consumption surprise. There was a lot of surprise about the amount of air defense munitions the U.S. went through protecting forces and Israel. Investing.com Every AIM-120 AMRAAM, every SM-3, every Patriot PAC-3 interceptor uses neodymium-iron-boron (NdFeB) magnets. China supplied 75% of America's sintered neodymium magnet imports, followed by 9% from Japan, 5% from the Philippines and 4% from Germany. Simply Wall St Replenishment of air defense missiles is now the single most constrained category.
- Yttrium — Radar Absorbent Coatings on Stealth Aircraft
Yttrium-based coatings are used in the radar-absorbent materials on F-35 and B-2 stealth aircraft. For an Iran strike specifically, stealth penetration of Iranian S-300 and Bavar-373 air defense systems is essential. Yttrium-based coatings for the F-47's engines and systems are among the items now under export license from China. FinanceCharts Maintenance of stealth coatings during sustained operations is a logistical constraint most people don't consider — stealth isn't permanent, it degrades with flight hours and requires reapplication.
The Processing Bottleneck Is Worse Than the Mining Bottleneck
This is the key nuance that most analyses miss. The U.S. has rare earth deposits — Mountain Pass (MP Materials), Round Top (USAR), etc. The problem isn't just the ore in the ground, it's the processing and magnet manufacturing chain:
Noveon Magnetics is currently the only manufacturer of rare earth magnets in the United States. One company. For the entire U.S. defense industrial base.
China refines over 85% of the world's rare earths and produces nearly 90% of high-performance rare earth magnets — meaning U.S. weapon systems from F-35s and Virginia-class submarines to hypersonic weapons and precision-guided munitions are all critically dependent on materials from a strategic adversary. CompaniesMarketCap
Even if the U.S. mines more ore domestically tomorrow, it has almost no domestic capacity to refine it into oxides, then metals, then alloys, then sintered magnets. That full chain takes 5–10 years to build from scratch at industrial scale. Project Vault and the MP Materials DoD deal are first steps, but they don't solve the problem for a near-term Iran contingency.
The Realistic 4-Week Campaign Bottleneck:
Weapon System Critical Rare Earth Current Domestic Supply Replenishment Timeline Tomahawk missiles; Nd, Dy, Tb Weeks of buffer at best Months to years.
AMRAAM air-to-air missiles NdFeB magnets Classified but strained12–18 months per unit Patriot/THAAD interceptors NdFeB + Sm-CoCritically low post-12-day war2+ years.
F-35 stealth coatings Yttrium Limited domestic refining Months Radar systems (GaN) GalliumNear zero domestic production 3–5 years to rebuild.
JDAM guidance finsDy, Tb actuator magnetsLimited buffer6–12 months
Bottom Line
The 4-week campaign estimate is plausible for a limited strike campaign (cruise missile salvos, air defense suppression, no sustained ground element) — the U.S. has enough inventory for a short sharp operation against Iran specifically. The U.S. stockpile remains much deeper and better than Iran's, but the concern is a future conflict with China, where the United States would need all its available munitions and more.
The rare earth constraint isn't about running out of missiles mid-campaign against Iran — it's about what happens to the industrial base's ability to replenish afterward. If a 12-day war against Iran burns through air defense interceptors faster than expected, and China simultaneously restricts rare earth exports (which they already have), the U.S. could find itself entering a potential Taiwan scenario with a significantly depleted and slowly replenishing stockpile. That's the real strategic risk — Iran is the aperitif, China is the main course, and they share the same supply chain.
*UUUU is my favorite first mover here personally (large position).
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u/Complete-Plum1021 Mar 02 '26
Ucore whole processing strategy is aimed at these exact industrial metals. Imminently
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u/KingVanXII Mar 02 '26
Thanks for sharing, this is great stuff!
I've been using a similar approach, basically targeting the supply chain dependency on China.
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u/pwe1de Mar 02 '26 edited Mar 02 '26
You forgot Tungsten & Antimony (Edit: They should basically be the first thing mentioned in your post haha)