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Terbium from China — Oxide, Metal, Alloys
Terbium is the scarcest of the magnet rare earths and the key additive for raising the coercivity of NdFeB magnets used in EV traction motors and wind turbines. We supply terbium oxide, terbium metal and terbium master alloys from producers in Jiangxi and Guangdong (ionic-clay heavy rare earths) to magnet, phosphor and actuator manufacturers.
Terbium products are subject to China's rare-earth export-licence regime; we manage licensing with the producer and ship with full REO/impurity certificates.
Request a quoteBRIDGE GROUP (ABridge Co., Ltd. · Ecobridge) — Gwangju, South Korea. Licensed trading company; state-trading rice quota holder under Korea's aT; direct exporter of SiC focus-ring CVD furnace systems to China (June 2026).
Product
Specification
Purity
Main uses
Terbium oxide (Tb₄O₇)
Powder · TREO ≥ 99% · Tb₄O₇/TREO 99.9–99.999%
3N–5N
Magnet additive, green phosphors, Faraday rotator glass (TGG)
Terbium metal
Ingot / lump / distilled · GBD grade
99.9–99.99%
Grain-boundary diffusion for NdFeB, Terfenol-D, research
Tb–Fe / Tb–Dy–Fe alloys
Tb-Fe 80/20 · Terfenol-D rods
Alloy spec
Magnetostrictive actuators, sonar transducers
Terbium fluoride / chloride
TbF₃ 4N · TbCl₃ · hydride powder
99.99%
Metal reduction feed, GBD coatings, optical
Frequently asked questions
Tb vs Dy for magnets?
Both raise coercivity; Tb is roughly twice as effective per kg but costs several times more. Grain-boundary diffusion (GBD) processes use Tb metal or Tb–H powders in small quantities — we supply GBD-grade material.
Minimum order?
Oxide: 10 kg; metal: 5 kg; alloys: 25 kg. Samples 100 g.
Lead time?
Stock oxide 2–3 weeks plus licence (30–45 days); metal and alloys 6–8 weeks.
Compliance & quality
Every enquiry is screened before quotation: strategic-items self-classification (Korea YESTRADE) and buyer screening against the U.S. Consolidated Screening List and UN/EU sanctions lists. We do not quote sanctioned parties, military end-users or embargoed destinations.
Materials ship with mill/producer certificates of analysis (ICP-MS/GDMS as applicable). Samples are available for independent third-party assay before volume orders.
Semiconductor finished goods are sourced on a demand basis from authorised Chinese producers and distributors only — no EOL brokerage, no unverified stock. Sample lots are verified before shipment.
About the supplier
BRIDGE GROUP (ABridge Co., Ltd. · Ecobridge) — Gwangju, South Korea. Licensed trading company; state-trading rice quota holder under Korea's aT; direct exporter of SiC focus-ring CVD furnace systems to China (June 2026).