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Samarium and Cobalt Price Trends: Impact on SmCo Magnets

Samarium and Cobalt Price Trends: Impact on SmCo Magnets

Samarium-cobalt magnets (SmCo) represent one of the most advanced, reliable, and irreplaceable technological solutions in today’s industrial landscape.

Within the family of rare-earth permanent magnets, SmCo alloys stand out for their unique chemical and physical properties: exceptional thermal stability (allowing them to operate without significant magnetic losses at temperatures above 300°C), extremely high resistance to demagnetization, and excellent corrosion resistance.

These characteristics make them critical components for high-tech sectors such as aerospace, defense, high-performance automotive, advanced marine sensing, and industrial automation. To learn more about the characteristics, properties, applications, and advantages of this technology, consult our complete guide to samarium-cobalt magnets (SmCo).

The Structure of SmCo Magnets and Their Dependence on Metals

To understand the price dynamics of industrial magnets, it is essential to analyze the metallurgical composition of these alloys. There are two main generations of samarium-cobalt magnets:

• SmCo5 Alloy (1:5 Ratio): It consists of one samarium atom and five cobalt atoms, corresponding to a samarium weight percentage of approximately 34–36%, while the remainder consists almost entirely of pure metallic cobalt. It offers excellent stability but is directly and linearly affected by any fluctuations in cobalt prices.
• Sm2Co17 Alloy (2:17 Ratio): This represents a structural evolution. The formula features a more complex matrix that also incorporates strategic percentages of iron (Fe), copper (Cu), and zirconium (Zr). The cobalt weight percentage is reduced, typically standing at around 48–52%, optimizing magnetic performance and slightly reducing dependence on pure cobalt.

Cobalt Market Analysis: High Volatility and the 2025 Price Surge

Cobalt has historically been one of the most unstable and speculative metals in the global mining sector. Its extraction is geographically concentrated in the Democratic Republic of the Congo (DRC), while its chemical and metallurgical refining is controlled by Chinese facilities for more than two-thirds of global capacity. This configuration makes the market particularly vulnerable to geopolitical tensions, trade conflicts, and financial market dynamics.

The Historical Trend and the 2024 Collapse

After the peaks recorded in 2022, the market underwent a major downward correction. In 2023, the average price declined before reaching a historic low in 2024. This decline was driven by temporary overproduction of cobalt hydroxide in Africa and the adoption, by some electric vehicle battery manufacturers, of alternative chemistries that do not require this metal.

The Recovery and Price Explosion in 2025

In 2025, this scenario of oversupply was completely reversed, as confirmed by Asian Metal’s monthly data. Cobalt prices embarked on exponential growth throughout the year:

• January–February 2025: The market started slowly, with prices remaining at a low and stable level of approximately RMB 153.2/kg.
• March 2025: The first market shock occurred, with a sudden jump that pushed the monthly average above RMB 202.8/kg.
• The Central Quarters (Q2 and Q3): Prices rose progressively from RMB 225/kg in spring to RMB 275/kg in September, driven by the absorption of global inventories and increasing demand from the aerospace superalloy sector.
• The Final Surge (Q4): During the final three months of the year, the cobalt market accelerated sharply. October recorded a monthly average of RMB 376/kg, followed by RMB 388.7/kg in November, before reaching a peak of RMB 412.3/kg in December—almost three times the levels recorded at the beginning of the year.

This overheated trend partially continued into the first half of 2026, with the average price recorded during the first six months remaining high.

Samarium Market Analysis: Structural Stability and Rare-Earth Dynamics

Samarium follows completely different economic dynamics compared with cobalt. As a “light” rare earth element (LREE), its availability in nature is linked to the extraction of complex minerals such as monazite and bastnäsite. Compared with “sister” rare earth elements such as neodymium and praseodymium, samarium has historically been characterized by a more niche market and, consequently, structurally lower prices that are less prone to extreme fluctuations in the metals market.

However, control over this element is almost entirely centralized in Chinese chemical separation facilities. Until the beginning of 2025, samarium prices followed a relatively flat trend, with limited fluctuations that allowed manufacturers to easily absorb the cost of the raw material within master alloys. Unlike cobalt, samarium prices are not driven primarily by financial speculation, but are closely linked to the production balances of major Asian state-owned mining groups: when overall rare-earth production increases to meet demand for neodymium, samarium is extracted as a by-product, helping keep its price stable and competitive.

Regulatory Focus: The Case of Chinese Export Licenses

Although the samarium market has historically been characterized by good stability, a specific regulatory factor introduced a significant disruption last year: the introduction of new export licenses implemented by the Chinese government starting in April 2025.

This measure established strict customs and bureaucratic controls on exports of strategic rare-earth-related products and metals, explicitly including samarium within the inspection and ministerial approval procedures.

The impact of this specific regulatory provision has primarily resulted in logistical delays. Lead times for the delivery of samarium-containing products have increased significantly due to the technical processing times required by Asian customs authorities to validate the relevant documentation.

Do you need to plan your SmCo magnet procurement and reduce your exposure to raw material price fluctuations? Contact us to speak with our specialists and identify the solution best suited to your application.

Risk Mitigation Strategies

To protect operating margins and ensure supply continuity, three main strategies should be adopted:

• Long-term supply agreements: These allow you to secure the required delivery volumes and avoid the risk of production stoppages.
• Co-engineering and geometric optimization: Reducing the component weight by even a few grams can help offset increases in raw material costs.
• Continuous monitoring: Tracking price trends makes it possible to plan purchases strategically.

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