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HS Chapter 28 — Inorganic chemicals; compounds of precious metals and rare-earth metals

HS chapter 28 (Inorganic chemicals; compounds of precious metals and rare-earth metals) covers 148 product categories in U.S. import records, with 542,338 bill-of-lading shipments. The most imported headings are Sodium hydroxide (Caustic soda), Hydrogen, rare gases and other nonmetals, and Artificial corundum, whether or not chemically defined.

Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026 · Chapter → heading → product, drill in for importers and suppliersCite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/chapter/28

Headings in this chapter

HSHeadingProductsShipments
2815Sodium hydroxide (Caustic soda)473,563
2804Hydrogen, rare gases and other nonmetals1171,854
2818Artificial corundum, whether or not chemically defined359,149
2811Other inorganic acids and other inorganic oxygen compounds of nonmetals544,298
2805Alkali or alkaline-earth metals537,040
2835Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates827,923
2833Sulfates1027,818
2836Carbonates822,168
2842Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides214,878
2845Isotopes other than those of heading 2844113,930
2843Colloidal precious metals313,848
2816Hydroxide and peroxide of magnesium113,156
2817HS 2817112,373
2814Ammonia, anhydrous or in aqueous solution211,338
2827Chlorides, chloride oxides and chloride hydroxides1011,110
2803HS 2803110,662
2825Hydrazine and hydroxylamine and their inorganic salts89,239
2821Iron oxides and hydroxides17,985
2823HS 282316,199
2841Salts of oxometallic or peroxometallic acids65,258
2844Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds45,011
2801Fluorine, chlorine, bromine and iodine34,573
2809Diphosphorus pentaoxide13,841
2820Manganese oxides23,185
2849Carbides, whether or not chemically defined32,559
2846Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals22,543
2806Hydrogen chloride (Hydrochloric acid)12,226
2807HS 280712,194
2834Nitrites32,086
2819Chromium oxides and hydroxides21,987
2826Fluorides41,792
2847HS 284711,712
2810HS 281011,567
2812Halides and halide oxides of nonmetals41,448
2840Borates41,408
2832Sulfites21,369
2839Silicates31,105
2850HS 285011,088
2828Hypochlorites21,088
2808HS 280811,067
2829Chlorates and perchlorates2997
2831Dithionites and sulfoxylates1709
2837Cyanides, cyanide oxides and complex cyanides2664
2813Sulfides of nonmetals1639
2830Sulfides2622
2802HS 28021302
2853Phosphides, whether or not chemically defined, excluding ferrophosphorous1262
2824Lead oxides1258
2822HS 28221247

Frequently asked questions about HS chapter 28

What is HS chapter 28?

Chapter 28 of the Harmonized System covers inorganic chemicals. In U.S. import records it spans 49 four-digit headings and 148 six-digit product codes.

How many U.S. import shipments fall under HS chapter 28?

ImportDoor has 542,338 U.S. Customs bill-of-lading shipment records under chapter 28, updated monthly.

Which HS 28 heading is imported most into the U.S.?

HS 2815 (Sodium hydroxide) leads with 73,563 shipments, followed by HS 2804 (Hydrogen) and HS 2818 (Artificial corundum).

HS Chapter 28: Inorganic chemicals | US Import Data