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Samarium

★ US Critical Mineral 2025Rare Earth Element
Sm · Rare Earth Element

Prices

No single exchange-settled price exists for samarium. Trade settles over-the-counter against benchmarks published by independent price-reporting agencies. We do not republish those numbers — consult the publishers directly:

Shanghai Metals Market ↗
Daily Chinese rare-earth oxide and metal benchmark quotations.
Fastmarkets — Rare Earths ↗
MB FOB China benchmark prices and market intelligence.
Asian Metal ↗
Daily REE oxide quotations from Chinese suppliers (subscription).
USGS Mineral Commodity Summaries 2026 ↗
Annual U.S. Geological Survey reference — production, reserves, prices, and trade statistics for samarium.

About Samarium

Editorial overview

What is samarium?

Samarium (Sm, atomic number 62) is a lanthanide rare earth metal, which is a soft silvery metal family element used in high-performance magnetic and nuclear applications. Lynas Rare Earths

How samarium is priced

Samarium has no exchange-listed contract. The reference market is the Chinese domestic spot market, where prices are published daily by Shanghai Metals Market (SMM) and the China Rare Earth Industry Association. International benchmark assessments are published by Fastmarkets and Argus Media on a daily/weekly basis. Both are regulated benchmark administrators under UK/EU BMR. The LME does not currently list a Samarium-specific contract; cash-settled rare-earth contracts on LME are limited to NdPr oxide.

Where samarium comes from

USGS does not publish samarium-specific mine production or reserve figures; it reports rare earths as a basket, with 2025e world mine production of 390,000 tons and reserves of more than 75,000,000 tons. The largest 2025e producers were China (270,000 tons), the United States (51,000 tons), Australia (29,000 tons), Burma (22,000 tons), and Brazil (2,000 tons). USGS Mineral Commodity Summaries 2026: Rare Earths Full breakdown in the production and reserves sections.

Who produces samarium

Samarium is typically produced as part of rare-earth separation streams rather than as a standalone mined metal; Lynas produces mixed heavy rare earth compound SEGH containing samarium, and MP Materials said it plans to commence production of separated Sm from its heavy rare earth stream. China’s rare-earth industry is dominated by China Northern Rare Earth Group and China Rare Earth Group, which are the principal state-backed producers of light and heavy rare earths, respectively. Lynas Rare Earths, MP Materials Q3 2025 Earnings Release, USGS 2023 Minerals Yearbook: China Full list of producers below.

What samarium is used for

Lynas says samarium is used in powerful magnets, intravenous radiation treatments for some cancers, and as a stable neutron absorber for nuclear reactor control rods. The USGS rare-earths chapter also identifies magnets as the leading global rare-earth end use and catalysts as the leading domestic end use. Lynas Rare Earths, USGS Mineral Commodity Summaries 2026: Rare Earths

Key facts about samarium supply

Sources: USGS Mineral Commodity Summaries 2026: Rare Earths, Lynas Rare Earths, Lynas Rare Earths products, MP Materials Q3 2025 Earnings Release, USGS 2023 Minerals Yearbook: China

Mine Production by Country

Source: USGS MCS 2026

Per-country production data not published by USGS

USGS Mineral Commodity Summaries 2026 reports rare-earth production and reserves on a combined rare-earth-oxide (REO) basis only — per-country data are not broken out by individual element. Samarium production and reserves figures are not separately published by USGS. For the consolidated REE-group table covering all rare earths, see the Rare Earth Elements (REE) page.

Source: USGS MCS 2026

Major Producers (0)

No producer data available for this metal.

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Frequently Asked Questions

Auto-generated from primary-source data
What is the primary source for samarium production and reserves data?
Country-level samarium production and reserves figures on TSM Hub are sourced directly from the USGS Mineral Commodity Summaries 2026, the U.S. Geological Survey's authoritative annual reference. Company-level production figures come from each producer's official annual report, production report, or regulated exchange filing.

Data Sources

Production and reserves data: USGS Mineral Commodity Summaries 2026

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