Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds:
Part of: 26 — Ores, slag and ash
H306409 · 2019-12-30 — Tariff classification of a spent catalyst
This ruling is in response to your letter, dated October 10, 2019, requesting a binding ruling on the tariff classification of a spent catalyst under the Harmonized Tariff Schedule of the United States (HTSUS). Your request was forwarded by the National Commodity Specialist Division to this office for a response. FACTS: The instant product is identified as a spent hydrotreating catalyst. Prior to use, the catalyst begins as a NiMo alumina supported catalyst, consisting of a support of aluminum oxide impregnated with molybdenum and nickel compounds. The original catalyst is then used to drive…
955742 · 1994-04-04 — Protest 2704-93-103276; micro silica sand; EN 26.20; 2621.00.00; EN 26.21; 6815.99.44; EN 68.15
This is regards to Protest 2704-93-103276, which pertains to the tariff classification of micro silica sand under the Harmonized Tariff Schedule of the United States (HTSUS). FACTS: The product at issue is micro silica sand, D-124 Litefil, which is a lightweight mineral filler used as a partial replacement of heavyweight fillers, i.e., replacement of heavyweight aggregates used in hydraulic cement based slurries for oil/gas well drilling. Upon importation, the entries of the micro silica sand were liquidated on August 13, 1993, under subheading 6815.99.40, HTSUS, as other articles of stone or…
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