Platinum and Platinum Alloys, Unwrought or in Powder Form

Platinum sponge, ingot, and cast forms are all considered unwrought and fall within this heading alongside powder. The common thread is that none of these forms has been mechanically worked — rolled, drawn, or extruded. Sponge is a porous, chemically reduced form; powder is finely divided particulate. Both are classified here, but the specific physical form should be stated on the commercial invoice because it can affect valuation and downstream end-use documentation.

Yes. Platinum alloys in unwrought or powder form are explicitly included. Platinum-rhodium alloys used in glass-fiber bushings and platinum-iridium alloys used in laboratory standards are common examples. The alloy composition should be declared on entry documents, as rhodium and iridium are separately tracked PGMs with their own supply-chain considerations.