Platinum Black Sponge Precursor
Spongy platinum precursor for platinum black catalysts used in fuel cells and organic synthesis. HTS 7110.11.00.20 covers this unwrought sponge form of platinum, distinct from final powder catalysts. Complies with definitions excluding iridium-group metals unless alloyed per Note 2(b).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as platinum salts before reduction
Unreduced platinum compounds (salts, oxides) classified in Chapter 28 as inorganic chemicals.
If for gold sponge of similar form
Identical sponge morphology but gold-dominant alloy follows Note 5(b) to gold subheadings.
If assembled into fuel cell electrodes
Electrical machinery assemblies with precious metal function classified by end-use in Chapter 85.
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Import Tips & Compliance
• Include sieve analysis proving <90% passes 0.5mm mesh to maintain sponge classification
• Label clearly as semi-manufactured precious metal to prevent confusion with finished articles in 7113
• For alloy sponge, provide weight composition analysis showing platinum predominance
Related Products under HTS 7110.11.00.20
Platinum Sponge Catalyst Precursor
Porous platinum sponge used as a precursor material in the production of heterogeneous catalysts for chemical reactions like hydrogenation. Classified under HTS 7110.11.00.20 as unwrought platinum in sponge form, which is a semi-manufactured state prior to powdering or further processing. It meets the chapter definition of platinum (including alloys with predominant platinum content) in unwrought form.
High-Purity Platinum Sponge 99.99%
Ultra-pure platinum sponge (99.99% Pt) produced by precipitation and reduction, supplied in bulk for laboratory and jewelry fabrication. Falls under HTS 7110.11.00.20 as unwrought platinum sponge, a porous semi-manufactured form not qualifying as powder per subheading notes. Excludes clad or plated materials per Chapter Note 7.
Industrial Platinum Sponge for Wire Drawing
Porous platinum sponge melted down for thermocouple wire and lab ware production. Specifically under HTS 7110.11.00.20 as unwrought platinum sponge, a standard semi-manufactured input for precious metal fabrication. Meets unwrought criteria excluding finished shapes or powder.
Laboratory Grade Platinum Sponge
High-surface-area platinum sponge for analytical chemistry reductions and hydrogen absorption studies. Classified HTS 7110.11.00.20 as unwrought platinum in sponge form, suitable for lab-scale catalyst preparation. Distinguished from powder by particle morphology per subheading notes.