The materials in this category share two properties that shape how they are bought. First, the number on the label is not the product: two yttrium-oxide lots at the same purity behave as different materials if one is submicron and one is several microns, so a specification that stops at "4N" has not yet chosen a product. Second, several of these items ship out of China only under an export licence, so the licence procedure — classification, application, end-user certificate — is part of the lead time whether or not anyone planned for it. We treat both as our work: grades are separated by the parameter that actually divides the applications (particle size for yttrium oxide, item and form for the salts), every lot ships against a method-stated COA, and where an item falls under Chinese export control we run the licence and EUC procedure — or, where applicability is unclear, determine it per item before replying.
製品
Rare Earth & High-Purity Compounds
Typical properties — subject to confirmation per lot. COA provided with every shipment.
Product lines
- High-Purity Yttrium OxideY₂O₃ in four particle-size grades — submicron sintering powder, 3–5 µm melt feedstock, spherical spray granules, and nano — with Chinese export-licence and EUC handling as part of supply.
- Rare Earth Oxides & SaltsNewCerium, lanthanum, neodymium and erbium oxides at 3N–4N, plus carbonate, chloride and nitrate salts — export-control applicability determined per item before we reply.
- Antimony CompoundsNewSodium antimonate for PET polymerization and glass fining, and colloidal antimony pentoxide for halogen-free flame retardant formulations — under Chinese export licensing from 2026, with licence handling included.
- Specialty Metal CompoundsNewHafnium salts, tantalum oxides, tungsten salts and indium compounds — quoted case by case after item, grade and export-control determination.