Samarium

China Export Controls: MOFCOM Announcement No. 18 Puts Samarium Under a Standing Licence Regime

1. What Announcement No. 18 actually controls

MOFCOM's Announcement No. 18 of 2025 lists samarium under three new entries on China's Export Control List of Dual-Use Items: category 1C902.a covers samarium metal (customs code 2805301910) and samarium-containing alloys — explicitly naming samarium-cobalt, samarium-iron, samarium-nickel, samarium-aluminum, and samarium-magnesium alloys — plus samarium-containing sputtering targets and, critically, “samarium cobalt permanent magnet materials” as a named line item. Category 1C902.b covers samarium oxide and its mixtures, and 1C902.c covers other samarium-containing compounds and mixtures. The announcement states exporters “shall apply for the license from the competent commercial authority of the State Council” and must declare the dual-use control number on every customs filing; goods are held during any customs inquiry (MOFCOM Announcement No. 18). The stated rationale was “to safeguard national security and interests and fulfill international obligations such as non-proliferation,” and the rule took effect immediately upon issuance (MOFCOM Announcement No. 18).

2. Seven elements, one basket, explicitly tied to magnets and defense

The April 2025 basket covers seven medium and heavy rare earths: samarium, gadolinium, terbium, dysprosium, lutetium, scandium, and yttrium (Reuters, 4 Apr 2025). Law firm Holland & Knight's summary of the announcement specifically flags that the samarium controls extend to “metallic samarium and samarium-containing alloys (e.g., samarium-cobalt alloys), samarium oxide and its mixtures, and compounds and mixtures containing samarium” and notes the measure “is not an export ban, but rather an export restriction” subject to case-by-case licensing outcomes (Holland & Knight, 4 Apr 2025). The European Parliament's own resolution on the episode records that China “started to enact export restrictions on 7 of the 17 rare earth elements (REEs) and on permanent magnets produced from these, introducing a system for non-automatic licences, and cited dual-use and security considerations as justification” (European Parliament resolution, 14 Jul 2025).

3. December 2024 precedent and the licence-processing bottleneck

The April 2025 samarium controls followed a December 2024 update to China's dual-use export framework that gave MOFCOM, the State Council, and the Central Military Commission broader discretionary power to subject unlisted items to export control, with extraterritorial reach (European Parliament resolution, 14 Jul 2025). In practice, licence processing has become the binding constraint: trade advisory Sourzi reports the “licence approval queue at MOFCOM's Department of Foreign Trade still averages 47 business days for first-time applicants” a full year after the rule took effect, with first-time buyers waiting up to 90 days, and that applicants must submit an end-user certificate attesting the material will not reach a military end-user (Sourzi, 5 Mar 2026). Industry newsletter DHIT similarly documents a “processing time of up to 45 working days” and confirms MOFCOM's official position that “exports are prohibited for military applications” and situations where the end-use or end-user cannot be reliably verified (DHIT, 19 Nov 2025).

Why it matters: unlike the December 2024 antimony/gallium/germanium ban, the April 2025 samarium controls were framed around dual-use national-security review rather than tariff retaliation alone, and they explicitly name “samarium cobalt permanent magnet materials” — the exact product used in missile actuators, satellite reaction wheels, and fighter-jet turbomachinery. MOFCOM's spokesperson position that applications tied to overseas military end-users will not be approved makes the licensing regime a direct lever over Western defense production, not merely a commercial trade irritant (MOFCOM — China Ministry of Commerce (rare earth export controls, April 2025 curbs)).

1. Why temperature stability makes SmCo irreplaceable in guided munitions

Samarium-cobalt magnets were invented in the 1960s at Wright-Patterson Air Force Base by researchers Karl Strnat and Alden Ray specifically to meet military demand for magnets that would not demagnetize under heat and vibration — the United States was the pioneer of the technology before production shifted almost entirely to China by the 1980s, driven by China's rare-earth deposits, minimal environmental restrictions on the highly polluting separation process, and state subsidies (The Asia Live, 26 Dec 2025). SmCo's Curie temperature of 700–850°C and near-zero, sometimes even slightly positive, reversible temperature coefficient of remanence in specialty 2:17-type grades gives guided munitions, radar seekers, and inertial-navigation gyroscopes magnetic stability across the extreme thermal swings of missile flight, engine bays, and reentry-adjacent environments that NdFeB cannot match (DataDeep Tech, Sm2Co17 sintered magnet supply chain report, 21 May 2026). Peer-reviewed materials-physics research on Sm-Co systems confirms that heavy rare-earth doping with dysprosium or terbium can push operating temperature further to ~180°C in a modified alloy, while partial gadolinium substitution creates temperature-compensated (Sm,Gd)-Co magnets with near-zero temperature coefficients from −50°C to 150°C, and the highest-temperature variants reach 550°C versus a prior 300°C ceiling for conventional high-temperature magnets (Chinese Physics B, Sm-Co high-temperature permanent magnet materials review).

2. Named defense platforms and systems

SmCo magnets are documented components of missile guidance and control actuators, radar seekers, inertial navigation gyroscopes, traveling-wave tubes and klystrons used in radar and electronic warfare amplification, satellite reaction wheels and antenna-pointing assemblies, submarine drive and sonar systems, and torpedo propulsion electric motors (DataDeep Tech, 21 May 2026). A 2022 case documented by Air & Space Forces Magazine and cited in supply-chain analyses found a Chinese-origin samarium-cobalt alloy inside a Honeywell-supplied auxiliary power unit magnet destined for F-35 aircraft built by Lockheed Martin, forcing a compliance waiver under U.S. specialty-metals rules and illustrating how deeply embedded Chinese SmCo material had become in the supply chain for the U.S.'s fighter program even after restrictions were legislated (DataDeep Tech, 21 May 2026). The Asia Live's reporting separately names “fifth-generation stealth fighter jets like the F-35” and “precision-guided missiles such as Tomahawks” as systems whose production could have “ground to a halt” without a fallback samarium source in 2025 (The Asia Live, 26 Dec 2025).

3. 10 U.S.C. §4872: the statutory ban on Chinese-origin SmCo in DoD contracts

Federal law already bars the Department of Defense from acquiring samarium-cobalt magnets “melted or produced” in China, Russia, North Korea, or Iran. 10 U.S.C. §4872 (formerly §2533c, added by Section 844 of the FY2021 NDAA and tightened by Section 854 of the FY2024 NDAA) defines “covered material” to include samarium-cobalt magnets, neodymium-iron-boron magnets, tungsten metal powder, tungsten heavy alloy, and tantalum, and defines “covered nation” as North Korea, China, Russia, and Iran (10 U.S.C. §4872, GovInfo). The implementing clause, DFARS 252.225-7052, currently restricts only the melting and downstream production stages (alloying, powder formation, pressing, sintering, magnetization), but effective 1 January 2027 the restriction expands to cover the entire supply chain for samarium-cobalt magnets “from mining or production of a cobalt and samarium ore or feedstock, including recycled material, through production of finished magnets” (DFARS 252.225-7052, Acquisition.gov). A waiver is available only if the Secretary of Defense determines in writing that compliant material of “satisfactory quality and quantity, in the required form, cannot be procured as and when needed at a reasonable price” (10 U.S.C. §4872).

4. The 2022 Quadrant Magnetics prosecution

The stakes of non-compliance were demonstrated by the prosecution of Quadrant Magnetics LLC, a Louisville, Kentucky defense magnet supplier indicted in November 2022 for allegedly substituting Chinese-origin magnets into DoD-bound components; individual defendants pleaded guilty in 2024, Quadrant executive Phil Pascoe was sentenced in October 2025 to 19 months in prison after an earlier trial ended in mistrial in March 2025, and the company agreed to pay roughly $1.33 million in forfeiture plus a $1 million penalty (DataDeep Tech, 21 May 2026). The case is the clearest evidence that DoD's China-origin magnet ban has real enforcement teeth, and that qualifying a fully compliant, non-Chinese SmCo supply chain is now a legal necessity for defense primes, not merely a preference.

The US Response: DLA Stockpiling, DoD Equity in MP Materials, and a French Rare-Earth Rescue

1. The 200-tonne Solvay stockpile: an emergency bridge, not a strategy

When China's April 2025 licensing controls hit, the U.S. samarium-cobalt magnet supply chain was rescued by a roughly 200-tonne stockpile of legacy samarium nitrate held in La Rochelle, France by Solvay, the Belgian chemicals group that had abandoned rare-earth separation in France as uneconomical years earlier (The Asia Live, 26 Dec 2025; DataDeep Tech, 21 May 2026). Arnold Magnetic Technologies' chief commercial officer Aaron Williams said plainly: “When China announced export controls on April 4, our supply was sufficient for a year… But as months passed, it became clear that more long-term solutions were urgently needed” (The Asia Live, 26 Dec 2025). Non-Chinese samarium sourced through this route cost five to eight times more than Chinese-origin material, a premium the U.S. defense industry accepted in exchange for supply security (The Asia Live, 26 Dec 2025). Williams added: “Once burned, twice shy. We will be extremely cautious in the future, avoiding reliance on any one country for critical minerals” (The Asia Live, 26 Dec 2025).

2. Vertical integration: USA Rare Earth acquires Less Common Metals

On 18 November 2025, U.S.-based miner USA Rare Earth closed its acquisition of Less Common Metals (LCM), a UK-based rare-earth metals and alloys producer and one of the last remaining Western rare-earth manufacturers, giving USA Rare Earth direct control over the Solvay stockpile's onward refining path (USA Rare Earth press release, 18 Nov 2025). Under the resulting supply chain, samarium nitrate is shipped from France to LCM's UK facility for refining into metal and alloy, then on to Arnold Magnetic Technologies' U.S. plants to be formed into finished SmCo magnets for fighter jets and missile systems (The Asia Live, 26 Dec 2025). LCM separately received a grant from DLA Troop Support and the Defense Logistics Agency specifically to expand its samarium metal production capacity at its UK facility (FuTu News, 29 Sep 2025). Solvay's GBU Special Chem division president An Nuyttens called the arrangement a partnership “to provide essential resources for high-performance applications, particularly in the strategic domain of the European aerospace industry” (The Asia Live, 26 Dec 2025).

3. MP Materials' Department of War equity stake and the heavy-rare-earth circuit

On 9 July 2025, the U.S. Department of War (the renamed Department of Defense) made a $400 million equity investment in MP Materials, operator of the Mountain Pass mine and processing complex in California, as part of a broader transaction agreement that includes a neodymium-praseodymium price-floor guarantee and a $150 million DoD loan to fund new solvent-extraction and ion-exchange capacity for separating dysprosium, terbium, and samarium by 2028 (SFA (Oxford), 11 Jul 2025). MP Materials has committed under its Department of War agreement to producing high-purity samarium oxide, and its Q1 2026 earnings call confirmed the heavy-rare-earth separation circuit at Mountain Pass — which already produces a mixed samarium/europium/gadolinium (SEG+) intermediate concentrate at scale — is on track for commissioning in mid-2026, generating a dedicated samarium/europium/gadolinium feed stream alongside a holmium-to-lutetium-plus-yttrium concentrate (MP Materials — SEC Filings). MP's Q3 2025 call confirmed plans to “commence production of additional heavy rare earth products, starting with Sm, in line with its agreement with the Department of War” (MP Materials Q3 2025 results, 6 Nov 2025).

4. Cumulative federal spending and the stockpile ceiling problem

DoD's cumulative spending on establishing domestic rare-earth supply chains reached roughly $540 million after the July 2025 MP Materials equity purchase, up from more than $439 million spent since 2020 before that transaction (DataDeep Tech, 21 May 2026). Yet analysts argue the DLA's FY2025 Annual Materials Plan ceiling of 60 tonnes of samarium-cobalt alloy is a stabilization gesture rather than a genuine strategic reserve, recommending the National Defense Stockpile expand its SmCo target “from the current 60 mt FY2025 ceiling to a sustained 200 to 400 mt rolling inventory, sufficient to cover 24 to 36 months of identified defense-program magnet demand under a complete-cutoff scenario” (DataDeep Tech, 21 May 2026). The USGS confirms the FY2025 Annual Materials Plan figures directly and notes that “information for FY 2026 potential acquisitions was not available” as of the 2026 Mineral Commodity Summary, meaning there is no public confirmation the stockpile target has actually been raised (USGS MCS 2026, rare earths chapter).

Samarium pricing is unusually bifurcated. USGS's official annual average, sourced from Argus Media's FOB-China oxide assessment, shows samarium oxide trading in a narrow low-single-digit-dollar band for years even through 2025; but Chinese domestic yuan-denominated spot quotes converted to dollars, and the effective landed cost of non-Chinese material reaching Western defense buyers, show a far larger, more volatile picture — underscoring that the headline USGS average understates the acute supply stress defense-linked buyers actually experienced in 2025–26.

USGS annual average price, samarium oxide 99.5% minimum, FOB China ($/kg)

Source: USGS MCS 2026, rare earths chapter, price series sourced from Argus Media's Argus Non-Ferrous Markets. The 2025 rebound to $2.82/kg, a 40% year-on-year increase, is the clearest official confirmation that the April 2025 export controls tightened physical availability even before the effect fully shows in official annual averages, which lag spot-market stress. Argus's own historical assessments have shown samarium metal (min 99% FOB China) trading in an $11.80–15.00/kg range and samarium oxide (min 99.5% FOB China) in a $1.80–2.50/kg range in prior years, confirming the order of magnitude of the USGS annual figures (Argus Rare Earths sample report; Argus Non-Ferrous Markets sample report).

The China Rare Earth Price Index spike and the domestic-quote divergence

On the domestic Chinese spot market, industry tracker Rare Earth Exchanges reported the China Rare Earth Price Index climbing to 237.5 on 14 January 2026, up 10% since early December 2025 and up sharply from an early-2024 trough near 150, with samarium prices quoted at ¥817–837/kg for oxide (roughly $114.20–$117.03/kg) and ¥350–370/kg for metal (roughly $48.95–$51.75/kg) (Rare Earth Exchanges, 15 Jan 2026). These domestic quotes sit far above the USGS FOB-export annual average, reflecting both a different purity/product specification and the reality that internal Chinese pricing, tight defense-linked heavy-REE supply, and export-restricted flows have diverged. The same report attributes the broader surge primarily to dysprosium (up to $878,000/tonne) and terbium (up to $2.57 million/tonne), and specifically notes that “samarium's continued strength reflects rising interest in SmCo magnet systems as a Dy/Tb-free alternative for high-performance and aerospace applications” — i.e., buyers are substituting toward SmCo specifically because dysprosium and terbium (needed for heat-resistant NdFeB) are even more constrained (Rare Earth Exchanges, 15 Jan 2026).

The non-Chinese defense premium: 5–8x

For Western defense buyers sourcing outside China entirely — via the Solvay/LCM/Arnold chain — the effective cost premium over Chinese-origin material was five to eight times higher, a premium the U.S. defense-industrial base has been willing to absorb to secure non-Chinese supply (The Asia Live, 26 Dec 2025). This creates a structurally two-tier market: a Chinese domestic/export price that, even after the 2025 rebound, remains an order of magnitude below the effective price non-Chinese defense buyers pay once refining, qualification, and scarcity premiums are included.

Samarium is never mined as a standalone ore; it is recovered as a minor constituent of bastnaesite and monazite concentrates alongside the light rare earths (cerium, lanthanum, neodymium, praseodymium) and other heavy rare earths, meaning its supply rises and falls with decisions about the broader rare-earth complex, and separating it into pure samarium oxide or metal requires dedicated solvent-extraction capacity that very few facilities outside China possess.

1. China's estimated 88–98% control of samarium and SmCo output

Estimates converge on an overwhelming Chinese share of both refined samarium and downstream SmCo magnet manufacturing. Trade-advisory analysis pegs China's global refining share for samarium at approximately 88% (Sourzi, 5 Mar 2026), while supply-chain analysis of the SmCo magnet segment specifically estimates that 90–98% of global Sm2Co17 sintered magnet production occurs in China and that China has historically supplied over 60% of world samarium output (DataDeep Tech, 21 May 2026). USGS's rare-earths-wide import data show that the United States sourced 71% of rare-earth compounds and metals from China (2021–24 average), with Malaysia (13%), Japan (5%), and Estonia (5%) supplying most of the remainder — though Malaysian, Japanese, and Estonian volumes were themselves “derived from mineral concentrates and chemical intermediates produced in Australia, China, and elsewhere,” meaning even the non-China-labeled trade flow is not fully independent of Chinese material (USGS MCS 2026, rare earths chapter).

2. Lynas Malaysia: the first non-Chinese samarium oxide producer

On 18–19 March 2026, Australia's Lynas Rare Earths announced it had produced its first batch of on-spec samarium oxide at its Gebeng, Malaysia processing plant, one month ahead of an original April 2026 target — making Lynas “the only producer outside China capable of separating the three heavy rare earth materials samarium, terbium, and dysprosium” (Shanghai Metals Market, 20 Mar 2026). Lynas CEO Amanda Lacaze called it “a significant milestone for Lynas” that “demonstrates the expertise and capability of our in-house team, which is unique outside China” (Malay Mail, 19 Mar 2026). Lynas's own ASX filing states the first-stage output is expected to reach approximately 400 tonnes per year, expandable once additional heavy-rare-earth separation capacity is built, and explicitly frames samarium as “a key component for SmCo magnets used in high temperature environments” (Lynas Rare Earths, ASX quarterly announcement, 21 Apr 2026). The milestone followed Malaysia's renewal of Lynas's operating licence for a full 10-year term from 3 March 2026 (up from the prior three-year renewal cycle) and a 15 March 2026 binding letter of intent with the U.S. Department of War covering light and heavy rare-earth oxide products, meaning the new samarium output is likely to be directed into a defense-oriented supply chain (Geomechanics.io, 20 Mar 2026).

3. MP Materials and the Mountain Pass SEG+ concentrate

MP Materials, operator of the Mountain Pass mine in California, has produced a mixed samarium/europium/gadolinium (“SEG+”) concentrate at commercial scale for roughly two years as an intermediate product, and confirmed on its Q1 2026 earnings call that its heavy-rare-earth separation circuit — under construction for several years — is targeted for commissioning in mid-2026, after which the company plans to produce dedicated high-purity samarium oxide under its Department of War agreement (MP Materials — SEC Filings; MP Materials, Morgan Stanley Symposium transcript, 12 Nov 2025). USGS confirms Mountain Pass, California is the sole primary bastnaesite mining operation in the United States, with domestic rare-earth mineral-concentrate production of an estimated 51,000 tons REO equivalent in 2025, valued at $240 million (USGS MCS 2026, rare earths chapter). Samarium content in Mountain Pass bastnaesite ore is estimated at approximately 0.79% of total REO content, versus roughly 0.80% at China's Bayan Obo deposit — comparable ore grades, meaning the supply gap is a separation-capacity problem, not a resource-endowment problem (DataDeep Tech, 21 May 2026).

4. Other announced non-Chinese pipeline projects

Ucore Rare Metals' planned Strategic Metals Complex in Alexandria, Louisiana, built on its RapidSX solvent-extraction technology demonstrated at a Kingston, Ontario facility, is scheduled to add separated samarium oxide output between 2026 and 2028, and signed a memorandum of understanding on 3 November 2025 with Vacuumschmelze and its eVAC Magnetics unit covering neodymium, praseodymium, terbium, dysprosium, samarium, and gadolinium oxides (DataDeep Tech, 21 May 2026). Lynas is separately constructing a light-rare-earth refinery in Hondo, Texas, partially funded by a U.S. Department of Defense Title III award, designed to convert imported carbonate into NdPr oxide and a dedicated samarium-europium-gadolinium stream, with first production for defense and commercial offtakers scheduled for 2026 (SFA (Oxford), 11 Jul 2025).

1. Samarium-neodymium (Sm-Nd) dating: how it works

Samarium-neodymium dating is a radiometric method for determining the ages of rocks and meteorites, based on the alpha decay of the long-lived isotope 147Sm to the stable radiogenic isotope 143Nd, with a half-life of 1.066(5)×10^11 years — roughly 24 times the age of the universe, which makes it suited to dating the very oldest rocks and meteorites without the parent isotope being significantly depleted (Samarium-neodymium dating, peer-reviewed geochronology literature summary). Because samarium and neodymium are both rare earth elements with similar chemical behavior, the Sm/Nd ratio is comparatively resistant to disturbance during sedimentation, diagenesis, and even metamorphism — a key advantage over some other isotopic systems, which allows Sm-Nd ages to survive geological reworking that would compromise other radiometric clocks.

2. The isochron method and the CHUR model

Geochronologists typically apply isochron dating, plotting the ratio of radiogenic 143Nd to stable 144Nd against the ratio of parent 147Sm to 144Nd across a suite of related samples; the slope of the resulting line yields the age of the rock system. Where an isochron is unavailable, researchers use the “chondritic uniform reservoir” (CHUR) model developed by DePaolo and Wasserburg in 1976, which describes how the 143Nd/144Nd ratio evolved in chondritic meteorites — thought to represent the earliest, unsorted material that formed before the planets — to model the isotopic evolution of the bulk Earth and calculate crustal formation ages (TCHUR) for terrestrial rocks. A refined “depleted mantle” model (TDM), developed by DePaolo in 1981, corrects for the fact that young oceanic volcanic rocks plot 7 to 12 epsilon units above the CHUR evolution line, producing more geologically realistic crustal formation ages — for example, revising an anomalously young 0.8-billion-year TCHUR age for the Grenville orogeny's composite crust to a more plausible 1.3-billion-year TDM age (Samarium-neodymium dating, geochronology literature summary). NASA-affiliated researchers have applied the same Sm-Nd system, often paired with rubidium-strontium dating, to determine the crystallization ages of lunar and Martian meteorites and to reconstruct early solar system chronology (NASA Technical Reports Server, samarium-neodymium evolution of meteorites; U.S. Department of Energy OSTI, rubidium-strontium and samarium-neodymium chronology report).

3. Neutron absorption: samarium in nuclear reactor control and burnable poisons

Samarium has an unusually large thermal neutron-capture cross-section in specific isotopic forms, making samarium oxide (Sm2O3) a candidate neutron-absorbing material for reactor control and shielding applications, tested via standard reactivity-worth measurement protocols in research reactors (BenchChem application note, samarium oxide as a neutron absorber). Separately, and more consequentially for reactor operations generally, the fission product samarium-149 is one of the most significant neutron-absorbing “poisons” that accumulates in operating nuclear fuel, alongside xenon-135, and must be accounted for in reactor physics calculations of reactivity margin, since 149Sm (unlike 135Xe) does not decay away and instead continues to accumulate until burned out by further neutron capture (Nuclear Power, Samarium-149 production and equilibrium; U.S. Department of Energy reactor physics training manual, fission product poisons). Samarium-cobalt magnets are also separately used in reactor-adjacent inspection and maintenance equipment because they retain their magnetic properties under radiation exposure better than standard magnet materials, even though they are not part of the control rods themselves (Rare Earth Exchanges, nuclear reactor control rods and rare earths, 13 Apr 2026).

4. Optical, laser, and catalytic applications

Lynas's own product description for its newly commercialized samarium oxide explicitly lists “optical, catalyst and medical applications” alongside high-performance magnets as end markets for the material (Lynas Rare Earths, ASX quarterly announcement, 21 Apr 2026). USGS's broader rare-earths chapter classifies catalysts as the single leading domestic U.S. end use for rare earths overall (ahead of magnets, which lead globally), with other end uses spanning batteries, ceramics and glass, metallurgical alloys, and polishing (USGS MCS 2026, rare earths chapter). Samarium-doped glasses and crystals have long been studied for infrared-absorbing and laser-host applications, exploiting samarium's characteristic sharp optical absorption and emission lines, though USGS does not break out a samarium-specific tonnage for these niche optical uses within its aggregate rare-earth end-use statistics.

Not applicable: USGS's Mineral Commodity Summaries series does not publish a samarium-specific application-share breakdown (e.g., % magnets vs. % catalysts vs. % optical), so no primary-source percentage split can be cited here beyond the qualitative ranking (catalysts leading domestically, magnets leading globally) given for rare earths as a whole (USGS MCS 2026, rare earths chapter).

1. Samarium's Critical and Strategic Raw Material classification

The European Commission's Critical Raw Materials Act, proposed as COM(2023) 160 final and formally in force since 23 May 2024, classifies samarium as one of five light rare earth elements (alongside cerium, lanthanum, neodymium, and praseodymium) that fall under the broader “rare earths for magnets” Strategic Raw Material category — one of 17 Strategic Raw Materials that sit within the full 34-material Critical Raw Materials list (EU Raw Materials Information System (RMIS/JRC); Intereconomics, EU strategic raw materials analysis, 27 Mar 2023). The rare-earths-for-magnets category specifically includes “neodymium, praseodymium, terbium, dysprosium, gadolinium, samarium and cerium,” explicitly grouping samarium with the elements used in permanent-magnet manufacturing rather than with other rare-earth end uses (Intereconomics, 27 Mar 2023).

2. The Act's 2030 domestic-capacity benchmarks and recycled-content provisions

Under the Critical Raw Materials Act, the EU has set 2030 benchmarks requiring that no single non-EU country supply more than 65% of the bloc's annual consumption of any Strategic Raw Material, alongside targets to extract at least 10%, process at least 40%, and recycle at least 25% of annual EU consumption domestically (Critical Raw Materials Act summary, European Commission-sourced). The regulation's Article 28 provisions specifically empower the Commission to adopt, after 31 December 2030, delegated acts setting minimum recycled-content requirements for “neodymium, dysprosium, praseodymium, terbium, boron, samarium, nickel and cobalt in the permanent magnet incorporated in” covered products — naming samarium explicitly among the eight magnet-relevant elements subject to future EU recycled-content mandates (European Parliamentary Research Service briefing, 2023).

3. European Parliament's direct response to the April 2025 controls

The European Parliament passed a resolution on 14 July 2025 explicitly addressing “China's critical raw materials export restrictions,” recording that China's April 2025 licensing regime covers samarium and six other medium/heavy rare earths plus permanent magnets made from them, and separately flagging that China's licensing procedure “requires applicants to disclose sensitive information to the Chinese authorities, which breaches economic secrecy” and that China's December 2024 regulatory update gave Chinese authorities broader, partly extraterritorial discretionary control powers (European Parliament resolution, 14 Jul 2025). A related European Court of Auditors report published in April 2026 assessing the EU's critical raw materials strategy for the energy transition confirms that light rare earths (including samarium) and heavy rare earths remain grouped as Strategic Raw Materials essential to green, digital, defence, and aerospace applications, and cautions that EU domestic extraction, processing, and recycling capacity for the rare-earth group as a whole remains far below the 2030 benchmarks (European Court of Auditors, Special Report SR-2026-04, Apr 2026).

4. European industrial capacity building: Solvay, Neo Performance, and Vacuumschmelze

Europe's principal contribution to non-Chinese samarium supply to date has been reactive rather than newly mined: Solvay's legacy La Rochelle, France samarium nitrate stockpile (Section 3) and Vacuumschmelze's existing European SmCo product line, which the company describes as a “principal SmCo producer in Germany” (DataDeep Tech, 21 May 2026). Separately, Canadian-headquartered Neo Performance Materials opened Europe's first mass-production facility for rare-earth magnets in Estonia in 2024, a step toward reducing the EU's reliance on Chinese-manufactured finished magnets even where the underlying oxide separation still occurs elsewhere (DataDeep Tech, 21 May 2026).

1. Capacity pipeline: three projects, one 2026 inflection point

Three separate non-Chinese samarium production paths are converging on 2026: Lynas Malaysia's confirmed ~400 tonne/year samarium oxide capacity (already in production as of March 2026), MP Materials' Mountain Pass heavy-rare-earth circuit (targeting mid-2026 commissioning), and Lynas's Hondo, Texas SEG stream (targeting 2026 first production) (Lynas Rare Earths, ASX quarterly announcement, 21 Apr 2026; MP Materials — SEC Filings; SFA (Oxford), 11 Jul 2025). Ucore's Louisiana complex adds a further, later-stage (2026–2028) source (DataDeep Tech, 21 May 2026). Even taken together, these projects represent a small fraction of the estimated multi-thousand-tonne global samarium market implied by China's historical 60%+ output share and hundreds-of-tonnes-per-year Chinese domestic demand figures (162 tonnes in 2011, rising to 726 tonnes in 2020, per industry research cited in supply-chain analysis), meaning even a fully successful non-Chinese build-out will likely leave the West import-dependent on China for the bulk of global samarium supply through the end of this decade (DataDeep Tech, 21 May 2026).

2. The DFARS 2027 deadline as a forcing function

The 1 January 2027 effective date for DFARS 252.225-7052's full mine-to-magnet restriction on Chinese-origin samarium-cobalt magnets creates a hard compliance deadline that will force U.S. defense primes to either qualify fully non-Chinese SmCo supply chains or seek nonavailability waivers (DFARS 252.225-7052, Acquisition.gov). Industry qualification cycles for new SmCo suppliers or grades typically run 18 to 36 months for existing platforms and 3 to 7 years for entirely new platforms, according to supply-chain analysis — meaning many defense programs starting qualification only after the April 2025 shock will not complete the process before the January 2027 deadline, likely forcing widespread use of the statutory waiver provision in the near term (DataDeep Tech, 21 May 2026).

3. Substitution limits: why NdFeB cannot simply replace SmCo

Even with dysprosium and terbium doping, NdFeB magnets max out at a practical continuous operating temperature well below SmCo's range, and NdFeB's own heavy-rare-earth dopants (dysprosium, terbium) are separately subject to the same April 2025 Chinese export-licensing regime, meaning the “substitute” pathway is itself exposed to the same China dependency (SDM Magnetics, SmCo vs NdFeB technical guide, 27 Sep 2024). This is precisely why Rare Earth Exchanges reports rising interest in SmCo as a “Dy/Tb-free alternative” even as samarium's own price climbs — buyers are choosing the lesser of two supply-constrained options rather than escaping China exposure altogether (Rare Earth Exchanges, 15 Jan 2026).

4. Demand scenarios: defense stockpiling versus civilian growth

Supply-chain analysis estimates defense and aerospace applications already account for roughly 38–45% of SmCo magnet demand, with industrial high-temperature motors and sensors (25–30%), medical imaging (15–20%), and oil-and-gas downhole tools (5–10%) making up the remainder (DataDeep Tech, 21 May 2026). Under a base-case scenario, continued DLA stockpile purchases, DFARS-driven qualification spending, and MP Materials/Lynas capacity ramp should incrementally reduce — but not eliminate — China dependency by 2028–2030, consistent with the recommendation that a 200–400 tonne rolling SmCo stockpile could cover 24 to 36 months of defense-program demand under a complete-cutoff scenario (DataDeep Tech, 21 May 2026). The principal downside risk is the November 2026 expiry of the Busan truce's suspension of the broader October 2025 controls: if that suspension lapses, extraterritorial rules requiring a Chinese export license for any product worldwide containing more than 0.1% Chinese-origin rare-earth content by value would resume, compounding the existing April 2025 samarium licensing regime and further tightening the squeeze on non-Chinese magnet producers who still rely on any Chinese-origin intermediate inputs (MOFCOM — China Ministry of Commerce (rare earth export controls, April 2025 curbs)).