Chapter 28
Inorganic Chemicals
By TariffCenter Research Team · Updated 2026-04-09 · Source: USITC Harmonized Tariff Schedule
At a glance
Chapter 28 contains 459 HTS lines covering inorganic chemicals. General U.S. duty rates: Free to 5.5%. Section 301 surcharges apply on selected lines for imports from China. Reciprocal tariffs apply following the February 2026 SCOTUS ruling.
2801 — Fluorine, chlorine, bromine and iodine
#Heading 2801 contains 6 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2801
Fluorine, chlorine, bromine and iodine:
Free
2801.10.00.00
Chlorine
Free
2801.20.00.00
Iodine
Free
2801.30
Fluorine; bromine:
Free
2801.30.10.00
Fluorine
3.7%
2801.30.20.00
Bromine
5.5%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2801 | Fluorine, chlorine, bromine and iodine: | Free | 301: 25%S122: 10% |
| 2801.10.00.00 | Chlorine | Free | 301: 25%S122: 10% |
| 2801.20.00.00 | Iodine | Free | 301: 25%S122: 10% |
| 2801.30 | Fluorine; bromine: | Free | 301: 25%S122: 10% |
| 2801.30.10.00 | Fluorine | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2801.30.20.00 | Bromine | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S, SG) |
2802 — Sulfur, sublimed or precipitated; colloidal sulfur
#Heading 2802 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2802.00.00.00 | Sulfur, sublimed or precipitated; colloidal sulfur | Free | 301: 25%S122: 10% |
2803 — Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
#Heading 2803 contains 3 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2803.00.00
Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
Free
2803.00.00.10
Carbon black
Free
2803.00.00.50
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2803.00.00 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) | Free | 301: 25%S122: 10% |
| 2803.00.00.10 | Carbon black | Free | 301: 25%S122: 10% |
| 2803.00.00.50 | Other | Free | 301: 25%S122: 10% |
2804 — Hydrogen, rare gases and other nonmetals
#Heading 2804 contains 20 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2804
Hydrogen, rare gases and other nonmetals:
Free
2804.10.00.00
Hydrogen
3.7%
2804.21.00.00
Argon
3.7%
2804.29.00
Other
3.7%
2804.29.00.10
Helium
Free
2804.29.00.20
Neon
Free
2804.29.00.30
Isotopically pure rare gases having a purity of 99 percent or more by volume
Free
2804.29.00.55
Other
Free
2804.30.00.00
Nitrogen
3.7%
2804.40.00.00
Oxygen
3.7%
2804.50.00
Boron; tellurium
Free
2804.50.00.10
Boron
Free
2804.50.00.20
Tellurium
Free
2804.61.00.00
Containing by weight not less than 99.99 percent of silicon
Free
2804.69
Other:
Free
2804.69.10.00
Containing by weight less than 99.99 percent but not less than 99 percent of silicon
5.3%
2804.69.50.00
Other
5.5%
2804.70.00.00
Phosphorus
Free
2804.80.00.00
Arsenic
Free
2804.90.00.00
Selenium
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2804 | Hydrogen, rare gases and other nonmetals: | Free | 301: 25%S122: 10% |
| 2804.10.00.00 | Hydrogen | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.21.00.00 | Argon | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.29.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.29.00.10 | Helium | Free | 301: 25%S122: 10% |
| 2804.29.00.20 | Neon | Free | 301: 25%S122: 10% |
| 2804.29.00.30 | Isotopically pure rare gases having a purity of 99 percent or more by volume | Free | 301: 25%S122: 10% |
| 2804.29.00.55 | Other | Free | 301: 25%S122: 10% |
| 2804.30.00.00 | Nitrogen | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.40.00.00 | Oxygen | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.50.00 | Boron; tellurium | Free | 301: 25%S122: 10% |
| 2804.50.00.10 | Boron | Free | 301: 25%S122: 10% |
| 2804.50.00.20 | Tellurium | Free | 301: 25%S122: 10% |
| 2804.61.00.00 | Containing by weight not less than 99.99 percent of silicon | Free | 301: 25%S122: 10% |
| 2804.69 | Other: | Free | 301: 25%S122: 10% |
| 2804.69.10.00 | Containing by weight less than 99.99 percent but not less than 99 percent of silicon | 5.3% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2804.69.50.00 | Other | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) |
| 2804.70.00.00 | Phosphorus | Free | 301: 25%S122: 10% |
| 2804.80.00.00 | Arsenic | Free | 301: 25%S122: 10% |
| 2804.90.00.00 | Selenium | Free | 301: 25%S122: 10% |
2805 — Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury
#Heading 2805 contains 17 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2805
Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury:
Free
2805.11.00.00
Sodium
5.3%
2805.12.00.00
Calcium
3%
2805.19
Other:
Free
2805.19.10.00
Strontium
3.7%
2805.19.20.00
Barium
Free
2805.19.90
Other
5.5%
2805.19.90.10
Lithium
Free
2805.19.90.90
Other
Free
2805.30.00
Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed
5%
2805.30.00.05
Lanthanum
Free
2805.30.00.10
Cerium
Free
2805.30.00.15
Praseodymium
Free
2805.30.00.20
Neodymium
Free
2805.30.00.50
Other
Free
2805.30.00.90
Other
Free
2805.40.00.00
Mercury
1.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2805 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: | Free | 301: 25%S122: 10% |
| 2805.11.00.00 | Sodium | 5.3% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2805.12.00.00 | Calcium | 3% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2805.19 | Other: | Free | 301: 25%S122: 10% |
| 2805.19.10.00 | Strontium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2805.19.20.00 | Barium | Free | 301: 25%S122: 10% |
| 2805.19.90 | Other | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) |
| 2805.19.90.10 | Lithium | Free | 301: 25%S122: 10% |
| 2805.19.90.90 | Other | Free | 301: 25%S122: 10% |
| 2805.30.00 | Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed | 5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) |
| 2805.30.00.05 | Lanthanum | Free | 301: 25%S122: 10% |
| 2805.30.00.10 | Cerium | Free | 301: 25%S122: 10% |
| 2805.30.00.15 | Praseodymium | Free | 301: 25%S122: 10% |
| 2805.30.00.20 | Neodymium | Free | 301: 25%S122: 10% |
| 2805.30.00.50 | Other | Free | 301: 25%S122: 10% |
| 2805.30.00.90 | Other | Free | 301: 25%S122: 10% |
| 2805.40.00.00 | Mercury | 1.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2806 — Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid
#Heading 2806 contains 3 HTS lines. General U.S. duty rates: Free–4.2%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2806
Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid:
Free
2806.10.00.00
Hydrogen chloride (Hydrochloric acid)
Free
2806.20.00.00
Chlorosulfuric acid
4.2%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2806 | Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: | Free | 301: 25%S122: 10% |
| 2806.10.00.00 | Hydrogen chloride (Hydrochloric acid) | Free | 301: 25%S122: 10% |
| 2806.20.00.00 | Chlorosulfuric acid | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2807 — Sulfuric acid; oleum
#Heading 2807 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2807.00.00.00 | Sulfuric acid; oleum | Free | 301: 25%S122: 10% |
2808 — Nitric acid; sulfonitric acids
#Heading 2808 contains 3 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2808.00.00
Nitric acid; sulfonitric acids
Free
2808.00.00.10
Nitric acid
Free
2808.00.00.20
Sulfonitric acids
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2808.00.00 | Nitric acid; sulfonitric acids | Free | 301: 25%S122: 10% |
| 2808.00.00.10 | Nitric acid | Free | 301: 25%S122: 10% |
| 2808.00.00.20 | Sulfonitric acids | Free | 301: 25%S122: 10% |
2809 — Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined
#Heading 2809 contains 7 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2809
Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
Free
2809.10.00.00
Diphosphorus pentaoxide
Free
2809.20.00
Phosphoric acid and polyphosphoric acids
Free
2809.20.00.10
Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents
Free
2809.20.00.20
Other
Free
2809.20.00.30
Other
Free
2809.20.00.40
Polyphosphoric acids
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2809 | Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2809.10.00.00 | Diphosphorus pentaoxide | Free | 301: 25%S122: 10% |
| 2809.20.00 | Phosphoric acid and polyphosphoric acids | Free | 301: 25%S122: 10% |
| 2809.20.00.10 | Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents | Free | 301: 25%S122: 10% |
| 2809.20.00.20 | Other | Free | 301: 25%S122: 10% |
| 2809.20.00.30 | Other | Free | 301: 25%S122: 10% |
| 2809.20.00.40 | Polyphosphoric acids | Free | 301: 25%S122: 10% |
2810 — Oxides of boron; boric acids
#Heading 2810 contains 1 HTS line. General U.S. duty rates: 1.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2810.00.00.00 | Oxides of boron; boric acids | 1.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2811 — Other inorganic acids and other inorganic oxygen compounds of nonmetals
#Heading 2811 contains 18 HTS lines. General U.S. duty rates: Free–4.2%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2811
Other inorganic acids and other inorganic oxygen compounds of nonmetals:
Free
2811.11.00.00
Hydrogen fluoride (Hydrofluoric acid)
Free
2811.12.00.00
Hydrogen cyanide (hydrocyanic acid)
4.2%
2811.19
Other:
Free
2811.19.10.00
Arsenic acid
2.3%
2811.19.30.00
Hydrobromic acid
Free
2811.19.61
Other
4.2%
2811.19.61.10
Sulfamic acid
Free
2811.19.61.90
Other
Free
2811.21.00.00
Carbon dioxide
3.7%
2811.22
Silicon dioxide:
Free
2811.22.10.00
Synthetic silica gel
3.7%
2811.22.50.00
Other
Free
2811.29
Other:
Free
2811.29.10.00
Arsenic trioxide
Free
2811.29.20.00
Selenium dioxide
Free
2811.29.30.00
Sulfur dioxide
4.2%
2811.29.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2811 | Other inorganic acids and other inorganic oxygen compounds of nonmetals: | Free | 301: 25%S122: 10% |
| 2811.11.00.00 | Hydrogen fluoride (Hydrofluoric acid) | Free | 301: 25%S122: 10% |
| 2811.12.00.00 | Hydrogen cyanide (hydrocyanic acid) | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.19 | Other: | Free | 301: 25%S122: 10% |
| 2811.19.10.00 | Arsenic acid | 2.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.19.30.00 | Hydrobromic acid | Free | 301: 25%S122: 10% |
| 2811.19.61 | Other | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.19.61.10 | Sulfamic acid | Free | 301: 25%S122: 10% |
| 2811.19.61.90 | Other | Free | 301: 25%S122: 10% |
| 2811.21.00.00 | Carbon dioxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.22 | Silicon dioxide: | Free | 301: 25%S122: 10% |
| 2811.22.10.00 | Synthetic silica gel | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.22.50.00 | Other | Free | 301: 25%S122: 10% |
| 2811.29 | Other: | Free | 301: 25%S122: 10% |
| 2811.29.10.00 | Arsenic trioxide | Free | 301: 25%S122: 10% |
| 2811.29.20.00 | Selenium dioxide | Free | 301: 25%S122: 10% |
| 2811.29.30.00 | Sulfur dioxide | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2811.29.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2812 — Halides and halide oxides of nonmetals
#Heading 2812 contains 14 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2812
Halides and halide oxides of nonmetals:
Free
2812.11.00.00
Carbonyl dichloride (phosgene)
3.7%
2812.12.00.00
Phosphorous oxychloride
3.7%
2812.13.00.00
Phosphorous trichloride
3.7%
2812.14.00.00
Phosphorous pentachloride
Free
2812.15.00.00
Sulfur monochloride
3.7%
2812.16.00.00
Sulfur dichloride
3.7%
2812.17.00.00
Thionyl chloride
3.7%
2812.19.00
Other
3.7%
2812.19.00.10
Arsenic trichloride
Free
2812.19.00.90
Other
Free
2812.90.00
Other
3.7%
2812.90.00.10
Sulfur hexafluoride
Free
2812.90.00.90
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2812 | Halides and halide oxides of nonmetals: | Free | 301: 25%S122: 10% |
| 2812.11.00.00 | Carbonyl dichloride (phosgene) | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.12.00.00 | Phosphorous oxychloride | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.13.00.00 | Phosphorous trichloride | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.14.00.00 | Phosphorous pentachloride | Free | 301: 25%S122: 10% |
| 2812.15.00.00 | Sulfur monochloride | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.16.00.00 | Sulfur dichloride | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.17.00.00 | Thionyl chloride | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.19.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.19.00.10 | Arsenic trichloride | Free | 301: 25%S122: 10% |
| 2812.19.00.90 | Other | Free | 301: 25%S122: 10% |
| 2812.90.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2812.90.00.10 | Sulfur hexafluoride | Free | 301: 25%S122: 10% |
| 2812.90.00.90 | Other | Free | 301: 25%S122: 10% |
2813 — Sulfides of nonmetals; commercial phosphorus trisulfide
#Heading 2813 contains 6 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2813
Sulfides of nonmetals; commercial phosphorus trisulfide:
Free
2813.10.00.00
Carbon disulfide
3.7%
2813.90
Other:
Free
2813.90.10.00
Of arsenic
Free
2813.90.20.00
Of phosphorus
Free
2813.90.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2813 | Sulfides of nonmetals; commercial phosphorus trisulfide: | Free | 301: 25%S122: 10% |
| 2813.10.00.00 | Carbon disulfide | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2813.90 | Other: | Free | 301: 25%S122: 10% |
| 2813.90.10.00 | Of arsenic | Free | 301: 25%S122: 10% |
| 2813.90.20.00 | Of phosphorus | Free | 301: 25%S122: 10% |
| 2813.90.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2814 — Ammonia, anhydrous or in aqueous solution
#Heading 2814 contains 3 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2814
Ammonia, anhydrous or in aqueous solution:
Free
2814.10.00.00
Anhydrous ammonia
Free
2814.20.00.00
Ammonia in aqueous solution
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2814 | Ammonia, anhydrous or in aqueous solution: | Free | 301: 25%S122: 10% |
| 2814.10.00.00 | Anhydrous ammonia | Free | 301: 25%S122: 10% |
| 2814.20.00.00 | Ammonia in aqueous solution | Free | 301: 25%S122: 10% |
2815 — Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium
#Heading 2815 contains 7 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2815
Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:
Free
2815.11.00.00
Solid
Free
2815.12.00.00
In aqueous solution (Soda lye or liquid soda)
Free
2815.20.00
Potassium hydroxide (Caustic potash)
Free
2815.20.00.50
In solid form
Free
2815.20.00.90
Other
Free
2815.30.00.00
Peroxides of sodium or potassium
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2815 | Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium: | Free | 301: 25%S122: 10% |
| 2815.11.00.00 | Solid | Free | 301: 25%S122: 10% |
| 2815.12.00.00 | In aqueous solution (Soda lye or liquid soda) | Free | 301: 25%S122: 10% |
| 2815.20.00 | Potassium hydroxide (Caustic potash) | Free | 301: 25%S122: 10% |
| 2815.20.00.50 | In solid form | Free | 301: 25%S122: 10% |
| 2815.20.00.90 | Other | Free | 301: 25%S122: 10% |
| 2815.30.00.00 | Peroxides of sodium or potassium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2816 — Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium
#Heading 2816 contains 5 HTS lines. General U.S. duty rates: Free–4.2%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2816
Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium:
Free
2816.10.00.00
Hydroxide and peroxide of magnesium
3.1%
2816.40
Oxides, hydroxides and peroxides, of strontium or barium:
Free
2816.40.10.00
Of strontium
4.2%
2816.40.20.00
Of barium
2%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2816 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium: | Free | 301: 25%S122: 10% |
| 2816.10.00.00 | Hydroxide and peroxide of magnesium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2816.40 | Oxides, hydroxides and peroxides, of strontium or barium: | Free | 301: 25%S122: 10% |
| 2816.40.10.00 | Of strontium | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2816.40.20.00 | Of barium | 2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2817 — Zinc oxide; zinc peroxide
#Heading 2817 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2817.00.00.00 | Zinc oxide; zinc peroxide | Free | 301: 25%S122: 10% |
2818 — Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide
#Heading 2818 contains 8 HTS lines. General U.S. duty rates: Free–1.3%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2818
Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:
Free
2818.10
Artificial corundum, whether or not chemically defined:
Free
2818.10.10.00
Crude
Free
2818.10.20
In grains, or ground, pulverized or refined
1.3%
2818.10.20.10
White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide
Free
2818.10.20.90
Other
Free
2818.20.00.00
Aluminum oxide, other than artificial corundum
Free
2818.30.00.00
Aluminum hydroxide
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2818 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: | Free | 301: 25%S122: 10% |
| 2818.10 | Artificial corundum, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2818.10.10.00 | Crude | Free | 301: 25%S122: 10% |
| 2818.10.20 | In grains, or ground, pulverized or refined | 1.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2818.10.20.10 | White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide | Free | 301: 25%S122: 10% |
| 2818.10.20.90 | Other | Free | 301: 25%S122: 10% |
| 2818.20.00.00 | Aluminum oxide, other than artificial corundum | Free | 301: 25%S122: 10% |
| 2818.30.00.00 | Aluminum hydroxide | Free | 301: 25%S122: 10% |
2819 — Chromium oxides and hydroxides
#Heading 2819 contains 3 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2819
Chromium oxides and hydroxides:
Free
2819.10.00.00
Chromium trioxide
3.7%
2819.90.00.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2819 | Chromium oxides and hydroxides: | Free | 301: 25%S122: 10% |
| 2819.10.00.00 | Chromium trioxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2819.90.00.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2820 — Manganese oxides
#Heading 2820 contains 3 HTS lines. General U.S. duty rates: Free–4.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2820
Manganese oxides:
Free
2820.10.00.00
Manganese dioxide
4.7%
2820.90.00.00
Other
4.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2820 | Manganese oxides: | Free | 301: 25%S122: 10% |
| 2820.10.00.00 | Manganese dioxide | 4.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2820.90.00.00 | Other | 4.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2821 — Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3
#Heading 2821 contains 8 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2821
Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3:
Free
2821.10.00
Iron oxides and hydroxides
3.7%
2821.10.00.10
Black
Free
2821.10.00.20
Red
Free
2821.10.00.30
Yellow
Free
2821.10.00.40
Other
Free
2821.10.00.50
Other
Free
2821.20.00.00
Earth colors
5.5%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2821 | Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3: | Free | 301: 25%S122: 10% |
| 2821.10.00 | Iron oxides and hydroxides | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2821.10.00.10 | Black | Free | 301: 25%S122: 10% |
| 2821.10.00.20 | Red | Free | 301: 25%S122: 10% |
| 2821.10.00.30 | Yellow | Free | 301: 25%S122: 10% |
| 2821.10.00.40 | Other | Free | 301: 25%S122: 10% |
| 2821.10.00.50 | Other | Free | 301: 25%S122: 10% |
| 2821.20.00.00 | Earth colors | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2822 — Cobalt oxides and hydroxides; commercial cobalt oxides
#Heading 2822 contains 3 HTS lines. General U.S. duty rates: Free–0.1%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2822.00.00
Cobalt oxides and hydroxides; commercial cobalt oxides
0.1%
2822.00.00.10
Cobalt(II, III) oxide (cobalt tetroxide)
Free
2822.00.00.90
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2822.00.00 | Cobalt oxides and hydroxides; commercial cobalt oxides | 0.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2822.00.00.10 | Cobalt(II, III) oxide (cobalt tetroxide) | Free | 301: 25%S122: 10% |
| 2822.00.00.90 | Other | Free | 301: 25%S122: 10% |
2823 — Titanium oxides
#Heading 2823 contains 1 HTS line. General U.S. duty rates: 5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2823.00.00.00 | Titanium oxides | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2824 — Lead oxides; red lead and orange lead
#Heading 2824 contains 6 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2824
Lead oxides; red lead and orange lead:
Free
2824.10.00.00
Lead monoxide (litharge, massicot)
3%
2824.90
Other:
Free
2824.90.10.00
Lead suboxide (leady litharge)
5.5%
2824.90.20.00
Red lead and orange lead
3.4%
2824.90.50.00
Other
4.8%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2824 | Lead oxides; red lead and orange lead: | Free | 301: 25%S122: 10% |
| 2824.10.00.00 | Lead monoxide (litharge, massicot) | 3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2824.90 | Other: | Free | 301: 25%S122: 10% |
| 2824.90.10.00 | Lead suboxide (leady litharge) | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2824.90.20.00 | Red lead and orange lead | 3.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2824.90.50.00 | Other | 4.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2825 — Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides
#Heading 2825 contains 24 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2825
Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides:
Free
2825.10.00.00
Hydrazine and hydroxylamine and their inorganic salts
3.7%
2825.20.00.00
Lithium oxide and hydroxide
3.7%
2825.30.00
Vanadium oxides and hydroxides
5.5%
2825.30.00.10
Vanadium pentoxide (anhydride)
Free
2825.30.00.50
Other
Free
2825.40.00.00
Nickel oxides and hydroxides
Free
2825.50
Copper oxides and hydroxides:
Free
2825.50.10.00
Cupric oxide
4.3%
2825.50.20.00
Cuprous oxide
5%
2825.50.30.00
Copper hydroxides
3.9%
2825.60.00
Germanium oxides and zirconium dioxide
3.7%
2825.60.00.10
Germanium dioxide
2825.60.00.20
Zirconium dioxide
2825.60.00.50
Other
2825.70.00.00
Molybdenum oxides and hydroxides
3.2%
2825.80.00.00
Antimony oxides
Free
2825.90
Other:
Free
2825.90.10.00
Beryllium oxide and hydroxide
3.7%
2825.90.15.00
Niobium oxide
3.7%
2825.90.20.00
Tin oxides
4.2%
2825.90.30.00
Tungsten oxides
5.5%
2825.90.75.00
Cadmium oxide
Free
2825.90.90.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2825 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides: | Free | 301: 25%S122: 10% |
| 2825.10.00.00 | Hydrazine and hydroxylamine and their inorganic salts | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.20.00.00 | Lithium oxide and hydroxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.30.00 | Vanadium oxides and hydroxides | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.30.00.10 | Vanadium pentoxide (anhydride) | Free | 301: 25%S122: 10% |
| 2825.30.00.50 | Other | Free | 301: 25%S122: 10% |
| 2825.40.00.00 | Nickel oxides and hydroxides | Free | 301: 25%S122: 10% |
| 2825.50 | Copper oxides and hydroxides: | Free | 301: 25%S122: 10% |
| 2825.50.10.00 | Cupric oxide | 4.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.50.20.00 | Cuprous oxide | 5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.50.30.00 | Copper hydroxides | 3.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.60.00 | Germanium oxides and zirconium dioxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.60.00.10 | Germanium dioxide | 301: 25%S122: 10%hts_special: | |
| 2825.60.00.20 | Zirconium dioxide | 301: 25%S122: 10%hts_special: | |
| 2825.60.00.50 | Other | 301: 25%S122: 10%hts_special: | |
| 2825.70.00.00 | Molybdenum oxides and hydroxides | 3.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.80.00.00 | Antimony oxides | Free | 301: 25%S122: 10% |
| 2825.90 | Other: | Free | 301: 25%S122: 10% |
| 2825.90.10.00 | Beryllium oxide and hydroxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.90.15.00 | Niobium oxide | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.90.20.00 | Tin oxides | 4.2% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2825.90.30.00 | Tungsten oxides | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2825.90.75.00 | Cadmium oxide | Free | 301: 25%S122: 10% |
| 2825.90.90.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2826 — Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts
#Heading 2826 contains 12 HTS lines. General U.S. duty rates: Free–4.1%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2826
Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts:
Free
2826.12.00.00
Of aluminum
Free
2826.19
Other:
Free
2826.19.10.00
Of ammonium
3.1%
2826.19.20.00
Of sodium
3.7%
2826.19.90.00
Other
3.9%
2826.30.00.00
Sodium hexafluoroaluminate (Synthetic cryolite)
Free
2826.90
Other:
Free
2826.90.10.00
Fluorosilicates of sodium or of potassium
4.1%
2826.90.90
Other
3.1%
2826.90.90.10
Lithium hexafluorophosphate
Free
2826.90.90.90
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2826 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts: | Free | 301: 25%S122: 10% |
| 2826.12.00.00 | Of aluminum | Free | 301: 25%S122: 10% |
| 2826.19 | Other: | Free | 301: 25%S122: 10% |
| 2826.19.10.00 | Of ammonium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2826.19.20.00 | Of sodium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2826.19.90.00 | Other | 3.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2826.30.00.00 | Sodium hexafluoroaluminate (Synthetic cryolite) | Free | 301: 25%S122: 10% |
| 2826.90 | Other: | Free | 301: 25%S122: 10% |
| 2826.90.10.00 | Fluorosilicates of sodium or of potassium | 4.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2826.90.90 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2826.90.90.10 | Lithium hexafluorophosphate | Free | 301: 25%S122: 10% |
| 2826.90.90.90 | Other | Free | 301: 25%S122: 10% |
2827 — Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides
#Heading 2827 contains 30 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2827
Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides:
Free
2827.10.00.00
Ammonium chloride
2.9%
2827.20.00.00
Calcium chloride
Free
2827.31.00.00
Of magnesium
1.5%
2827.32.00.00
Of aluminum
Free
2827.35.00.00
Of nickel
3.7%
2827.39
Other:
Free
2827.39.10.00
Of vanadium
5.5%
2827.39.25.00
Of tin
4.2%
2827.39.30.00
Of titanium
4.9%
2827.39.40.00
Of tungsten
5.5%
2827.39.45.00
Of barium
4.2%
2827.39.55.00
Of iron
3.7%
2827.39.60.00
Of cobalt
4.2%
2827.39.65.00
Of zinc
1.6%
2827.39.90
Other
3.7%
2827.39.90.10
Of lithium
2827.39.90.50
Other
2827.41.00.00
Of copper
3.9%
2827.49
Other:
Free
2827.49.10.00
Of vanadium
5.5%
2827.49.50.00
Other
5.5%
2827.51.00.00
Bromides of sodium or of potassium
Free
2827.59
Other:
Free
2827.59.25.00
Of ammonium, of calcium or of zinc
Free
2827.59.51.00
Other
3.6%
2827.60
Iodides and iodide oxides:
Free
2827.60.10.00
Of calcium or of copper
Free
2827.60.20.00
Of potassium
2.8%
2827.60.51.00
Other
4.2%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2827 | Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides: | Free | 301: 25%S122: 10% |
| 2827.10.00.00 | Ammonium chloride | 2.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.20.00.00 | Calcium chloride | Free | 301: 25%S122: 10% |
| 2827.31.00.00 | Of magnesium | 1.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.32.00.00 | Of aluminum | Free | 301: 25%S122: 10% |
| 2827.35.00.00 | Of nickel | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39 | Other: | Free | 301: 25%S122: 10% |
| 2827.39.10.00 | Of vanadium | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.25.00 | Of tin | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.30.00 | Of titanium | 4.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.40.00 | Of tungsten | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2827.39.45.00 | Of barium | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.55.00 | Of iron | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.60.00 | Of cobalt | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.65.00 | Of zinc | 1.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.90 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.39.90.10 | Of lithium | 301: 25%S122: 10%hts_special: | |
| 2827.39.90.50 | Other | 301: 25%S122: 10%hts_special: | |
| 2827.41.00.00 | Of copper | 3.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.49 | Other: | Free | 301: 25%S122: 10% |
| 2827.49.10.00 | Of vanadium | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.49.50.00 | Other | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.51.00.00 | Bromides of sodium or of potassium | Free | 301: 25%S122: 10% |
| 2827.59 | Other: | Free | 301: 25%S122: 10% |
| 2827.59.25.00 | Of ammonium, of calcium or of zinc | Free | 301: 25%S122: 10% |
| 2827.59.51.00 | Other | 3.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.60 | Iodides and iodide oxides: | Free | 301: 25%S122: 10% |
| 2827.60.10.00 | Of calcium or of copper | Free | 301: 25%S122: 10% |
| 2827.60.20.00 | Of potassium | 2.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2827.60.51.00 | Other | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2828 — Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites
#Heading 2828 contains 3 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2828
Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites:
Free
2828.10.00.00
Commercial calcium hypochlorite and other calcium hypochlorites
2.4%
2828.90.00.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2828 | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites: | Free | 301: 25%S122: 10% |
| 2828.10.00.00 | Commercial calcium hypochlorite and other calcium hypochlorites | 2.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2828.90.00.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2829 — Chlorates and perchlorates; bromates and perbromates; iodates and periodates
#Heading 2829 contains 8 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2829
Chlorates and perchlorates; bromates and perbromates; iodates and periodates:
Free
2829.11.00.00
Of sodium
Free
2829.19.01.00
Other
3.3%
2829.90
Other:
Free
2829.90.05.00
Potassium bromate
Free
2829.90.25.00
Sodium bromate
Free
2829.90.40.00
Of potassium
3.1%
2829.90.61.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2829 | Chlorates and perchlorates; bromates and perbromates; iodates and periodates: | Free | 301: 25%S122: 10% |
| 2829.11.00.00 | Of sodium | Free | 301: 25%S122: 10% |
| 2829.19.01.00 | Other | 3.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2829.90 | Other: | Free | 301: 25%S122: 10% |
| 2829.90.05.00 | Potassium bromate | Free | 301: 25%S122: 10% |
| 2829.90.25.00 | Sodium bromate | Free | 301: 25%S122: 10% |
| 2829.90.40.00 | Of potassium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2829.90.61.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2830 — Sulfides; polysulfides, whether or not chemically defined
#Heading 2830 contains 7 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2830
Sulfides; polysulfides, whether or not chemically defined:
Free
2830.10.00.00
Sodium sulfides
3.7%
2830.90
Other:
Free
2830.90.10.00
Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight
Free
2830.90.15.00
Other zinc sulfide
2.8%
2830.90.20.00
Cadmium sulfide
3.1%
2830.90.90.00
Other
3%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2830 | Sulfides; polysulfides, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2830.10.00.00 | Sodium sulfides | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2830.90 | Other: | Free | 301: 25%S122: 10% |
| 2830.90.10.00 | Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight | Free | 301: 25%S122: 10% |
| 2830.90.15.00 | Other zinc sulfide | 2.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2830.90.20.00 | Cadmium sulfide | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2830.90.90.00 | Other | 3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2831 — Dithionites and sulfoxylates
#Heading 2831 contains 5 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2831
Dithionites and sulfoxylates:
Free
2831.10
Of sodium:
Free
2831.10.10.00
Sodium formaldehyde sulfoxylate
Free
2831.10.50.00
Other
5.5%
2831.90.00.00
Other
5.5%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2831 | Dithionites and sulfoxylates: | Free | 301: 25%S122: 10% |
| 2831.10 | Of sodium: | Free | 301: 25%S122: 10% |
| 2831.10.10.00 | Sodium formaldehyde sulfoxylate | Free | 301: 25%S122: 10% |
| 2831.10.50.00 | Other | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2831.90.00.00 | Other | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2832 — Sulfites; thiosulfates
#Heading 2832 contains 6 HTS lines. General U.S. duty rates: Free–3.1%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2832
Sulfites; thiosulfates:
Free
2832.10.00.00
Sodium sulfites
1.5%
2832.20.00.00
Other sulfites
3.1%
2832.30
Thiosulfates:
Free
2832.30.10.00
Sodium thiosulfate
1.5%
2832.30.50.00
Other
3.1%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2832 | Sulfites; thiosulfates: | Free | 301: 25%S122: 10% |
| 2832.10.00.00 | Sodium sulfites | 1.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2832.20.00.00 | Other sulfites | 3.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2832.30 | Thiosulfates: | Free | 301: 25%S122: 10% |
| 2832.30.10.00 | Sodium thiosulfate | 1.5% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2832.30.50.00 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2833 — Sulfates; alums; peroxosulfates (persulfates)
#Heading 2833 contains 28 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2833
Sulfates; alums; peroxosulfates (persulfates):
Free
2833.11
Disodium sulfate:
Free
2833.11.10.00
Salt cake
Free
2833.11.50
Other
0.4%
2833.11.50.10
Anhydrous
Free
2833.11.50.50
Other
Free
2833.19.00.00
Other
Free
2833.21.00.00
Of magnesium
3.7%
2833.22.00.00
Of aluminum
Free
2833.24.00.00
Of nickel
3.2%
2833.25.00.00
Of copper
1.4%
2833.27.00.00
Of barium
0.6%
2833.29
Other:
Free
2833.29.10.00
Of cobalt
1.4%
2833.29.20.00
Of iron
Free
2833.29.30.00
Of vanadium
5.5%
2833.29.40.00
Of chromium
3.7%
2833.29.45.00
Of zinc
1.6%
2833.29.51
Other
3.7%
2833.29.51.10
Of manganese
Free
2833.29.51.90
Other
Free
2833.30.00.00
Alums
1.6%
2833.40
Peroxosulfates (persulfates):
Free
2833.40.20.00
Of sodium
3.7%
2833.40.60
Other
3.1%
2833.40.60.10
Of potassium
Free
2833.40.60.20
Of ammonium
Free
2833.40.60.50
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2833 | Sulfates; alums; peroxosulfates (persulfates): | Free | 301: 25%S122: 10% |
| 2833.11 | Disodium sulfate: | Free | 301: 25%S122: 10% |
| 2833.11.10.00 | Salt cake | Free | 301: 25%S122: 10% |
| 2833.11.50 | Other | 0.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.11.50.10 | Anhydrous | Free | 301: 25%S122: 10% |
| 2833.11.50.50 | Other | Free | 301: 25%S122: 10% |
| 2833.19.00.00 | Other | Free | 301: 25%S122: 10% |
| 2833.21.00.00 | Of magnesium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.22.00.00 | Of aluminum | Free | 301: 25%S122: 10% |
| 2833.24.00.00 | Of nickel | 3.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.25.00.00 | Of copper | 1.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.27.00.00 | Of barium | 0.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29 | Other: | Free | 301: 25%S122: 10% |
| 2833.29.10.00 | Of cobalt | 1.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29.20.00 | Of iron | Free | 301: 25%S122: 10% |
| 2833.29.30.00 | Of vanadium | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29.40.00 | Of chromium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29.45.00 | Of zinc | 1.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29.51 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.29.51.10 | Of manganese | Free | 301: 25%S122: 10% |
| 2833.29.51.90 | Other | Free | 301: 25%S122: 10% |
| 2833.30.00.00 | Alums | 1.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.40 | Peroxosulfates (persulfates): | Free | 301: 25%S122: 10% |
| 2833.40.20.00 | Of sodium | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.40.60 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2833.40.60.10 | Of potassium | Free | 301: 25%S122: 10% |
| 2833.40.60.20 | Of ammonium | Free | 301: 25%S122: 10% |
| 2833.40.60.50 | Other | Free | 301: 25%S122: 10% |
2834 — Nitrites; nitrates
#Heading 2834 contains 10 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2834
Nitrites; nitrates:
Free
2834.10
Nitrites:
Free
2834.10.10.00
Of sodium
5.5%
2834.10.50.00
Other
3.1%
2834.21.00.00
Of potassium
Free
2834.29
Other:
Free
2834.29.05.00
Of bismuth
5.5%
2834.29.10.00
Of calcium
Free
2834.29.20.00
Of strontium
4.2%
2834.29.51.00
Other
3.5%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2834 | Nitrites; nitrates: | Free | 301: 25%S122: 10% |
| 2834.10 | Nitrites: | Free | 301: 25%S122: 10% |
| 2834.10.10.00 | Of sodium | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2834.10.50.00 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2834.21.00.00 | Of potassium | Free | 301: 25%S122: 10% |
| 2834.29 | Other: | Free | 301: 25%S122: 10% |
| 2834.29.05.00 | Of bismuth | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2834.29.10.00 | Of calcium | Free | 301: 25%S122: 10% |
| 2834.29.20.00 | Of strontium | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2834.29.51.00 | Other | 3.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2835 — Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
#Heading 2835 contains 15 HTS lines. General U.S. duty rates: Free–4.1%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2835
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:
Free
2835.10.00.00
Phosphinates (hypophosphites) and phosphonates (phosphites)
3.1%
2835.22.00.00
Of mono- or disodium
1.4%
2835.24.00.00
Of potassium
3.1%
2835.25.00.00
Calcium hydrogenorthophosphate ("Dicalcium phosphate")
Free
2835.26.00.00
Other phosphates of calcium
Free
2835.29
Other:
Free
2835.29.10.00
Of aluminum
Free
2835.29.20.00
Of triammonium
1.5%
2835.29.30.00
Of trisodium
2.2%
2835.29.51.00
Other
4.1%
2835.31.00.00
Sodium triphosphate (Sodium tripolyphosphate)
1.4%
2835.39
Other:
Free
2835.39.10.00
Of potassium
3.1%
2835.39.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2835 | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2835.10.00.00 | Phosphinates (hypophosphites) and phosphonates (phosphites) | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.22.00.00 | Of mono- or disodium | 1.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.24.00.00 | Of potassium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.25.00.00 | Calcium hydrogenorthophosphate ("Dicalcium phosphate") | Free | 301: 25%S122: 10% |
| 2835.26.00.00 | Other phosphates of calcium | Free | 301: 25%S122: 10% |
| 2835.29 | Other: | Free | 301: 25%S122: 10% |
| 2835.29.10.00 | Of aluminum | Free | 301: 25%S122: 10% |
| 2835.29.20.00 | Of triammonium | 1.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.29.30.00 | Of trisodium | 2.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.29.51.00 | Other | 4.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.31.00.00 | Sodium triphosphate (Sodium tripolyphosphate) | 1.4% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.39 | Other: | Free | 301: 25%S122: 10% |
| 2835.39.10.00 | Of potassium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2835.39.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2836 — Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate
#Heading 2836 contains 20 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2836
Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate:
Free
2836.20.00.00
Disodium carbonate
1.2%
2836.30.00.00
Sodium hydrogencarbonate (Sodium bicarbonate)
Free
2836.40
Potassium carbonates:
Free
2836.40.10.00
Dipotassium carbonate
1.9%
2836.40.20.00
Potassium hydrogencarbonate (Potassium bicarbonate)
1.3%
2836.50.00.00
Calcium carbonate
Free
2836.60.00.00
Barium carbonate
2.3%
2836.91.00
Lithium carbonates
3.7%
2836.91.00.10
U.S.P. grade
Free
2836.91.00.50
Other
Free
2836.92.00.00
Strontium carbonate
4.2%
2836.99
Other:
Free
2836.99.10.00
Cobalt carbonates
4.2%
2836.99.20.00
Bismuth carbonate
5.5%
2836.99.30.00
Commercial ammonium carbonate and other ammonium carbonates
1.7%
2836.99.40.00
Lead carbonates
0.5%
2836.99.50
Other
3.7%
2836.99.50.10
Zirconium carbonates
2836.99.50.50
Other
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2836 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate: | Free | 301: 25%S122: 10% |
| 2836.20.00.00 | Disodium carbonate | 1.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.30.00.00 | Sodium hydrogencarbonate (Sodium bicarbonate) | Free | 301: 25%S122: 10% |
| 2836.40 | Potassium carbonates: | Free | 301: 25%S122: 10% |
| 2836.40.10.00 | Dipotassium carbonate | 1.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.40.20.00 | Potassium hydrogencarbonate (Potassium bicarbonate) | 1.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.50.00.00 | Calcium carbonate | Free | 301: 25%S122: 10% |
| 2836.60.00.00 | Barium carbonate | 2.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.91.00 | Lithium carbonates | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.91.00.10 | U.S.P. grade | Free | 301: 25%S122: 10% |
| 2836.91.00.50 | Other | Free | 301: 25%S122: 10% |
| 2836.92.00.00 | Strontium carbonate | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99 | Other: | Free | 301: 25%S122: 10% |
| 2836.99.10.00 | Cobalt carbonates | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99.20.00 | Bismuth carbonate | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99.30.00 | Commercial ammonium carbonate and other ammonium carbonates | 1.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99.40.00 | Lead carbonates | 0.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99.50 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2836.99.50.10 | Zirconium carbonates | 301: 25%S122: 10%hts_special: | |
| 2836.99.50.50 | Other | 301: 25%S122: 10%hts_special: |
2837 — Cyanides, cyanide oxides and complex cyanides
#Heading 2837 contains 9 HTS lines. General U.S. duty rates: Free–1.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2837
Cyanides, cyanide oxides and complex cyanides:
Free
2837.11.00.00
Of sodium
Free
2837.19.01
Other
Free
2837.19.01.10
Potassium cyanide
Free
2837.19.01.15
Calcium cyanide
Free
2837.19.01.25
Other
Free
2837.20
Complex cyanides:
Free
2837.20.10.00
Potassium ferricyanide
1.1%
2837.20.51.00
Other
1.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2837 | Cyanides, cyanide oxides and complex cyanides: | Free | 301: 25%S122: 10% |
| 2837.11.00.00 | Of sodium | Free | 301: 25%S122: 10% |
| 2837.19.01 | Other | Free | 301: 25%S122: 10% |
| 2837.19.01.10 | Potassium cyanide | Free | 301: 25%S122: 10% |
| 2837.19.01.15 | Calcium cyanide | Free | 301: 25%S122: 10% |
| 2837.19.01.25 | Other | Free | 301: 25%S122: 10% |
| 2837.20 | Complex cyanides: | Free | 301: 25%S122: 10% |
| 2837.20.10.00 | Potassium ferricyanide | 1.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2837.20.51.00 | Other | 1.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2839 — Silicates; commercial alkali metal silicates
#Heading 2839 contains 6 HTS lines. General U.S. duty rates: Free–3.1%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2839
Silicates; commercial alkali metal silicates:
Free
2839.11.00.00
Sodium metasilicates
1.1%
2839.19.00.00
Other
1.1%
2839.90
Other:
Free
2839.90.10.00
Of potassium
3.1%
2839.90.50.00
Other
3.1%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2839 | Silicates; commercial alkali metal silicates: | Free | 301: 25%S122: 10% |
| 2839.11.00.00 | Sodium metasilicates | 1.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2839.19.00.00 | Other | 1.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2839.90 | Other: | Free | 301: 25%S122: 10% |
| 2839.90.10.00 | Of potassium | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2839.90.50.00 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2840 — Borates; peroxoborates (perborates)
#Heading 2840 contains 7 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2840
Borates; peroxoborates (perborates):
Free
2840.11.00.00
Anhydrous
0.3%
2840.19.00.00
Other
0.1%
2840.20.00.00
Other borates
3.7%
2840.30.00
Peroxoborates (perborates)
3.7%
2840.30.00.10
Sodium perborate
Free
2840.30.00.50
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2840 | Borates; peroxoborates (perborates): | Free | 301: 25%S122: 10% |
| 2840.11.00.00 | Anhydrous | 0.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2840.19.00.00 | Other | 0.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2840.20.00.00 | Other borates | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2840.30.00 | Peroxoborates (perborates) | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2840.30.00.10 | Sodium perborate | Free | 301: 25%S122: 10% |
| 2840.30.00.50 | Other | Free | 301: 25%S122: 10% |
2841 — Salts of oxometallic or peroxometallic acids
#Heading 2841 contains 23 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2841
Salts of oxometallic or peroxometallic acids:
Free
2841.30.00.00
Sodium dichromate
2.4%
2841.50
Other chromates and dichromates; peroxochromates:
Free
2841.50.10.00
Potassium dichromate
1.5%
2841.50.91.00
Other
3.1%
2841.61.00.00
Potassium permanganate
5%
2841.69.00
Other
5%
2841.69.00.10
Sodium permanganate
Free
2841.69.00.90
Other
Free
2841.70
Molybdates:
Free
2841.70.10.00
Of ammonium
4.3%
2841.70.50.00
Other
3.7%
2841.80.00
Tungstates (wolframates)
5.5%
2841.80.00.10
Of ammonium
Free
2841.80.00.20
Of calcium
Free
2841.80.00.50
Other
Free
2841.90
Other:
Free
2841.90.10.00
Vanadates
5.5%
2841.90.20.00
Ammonium perrhenate
3.1%
2841.90.30.00
Potassium stannate
3.1%
2841.90.40.00
Aluminates
3.1%
2841.90.45.00
Chromates of zinc or of lead
3.7%
2841.90.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2841 | Salts of oxometallic or peroxometallic acids: | Free | 301: 25%S122: 10% |
| 2841.30.00.00 | Sodium dichromate | 2.4% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.50 | Other chromates and dichromates; peroxochromates: | Free | 301: 25%S122: 10% |
| 2841.50.10.00 | Potassium dichromate | 1.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.50.91.00 | Other | 3.1% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.61.00.00 | Potassium permanganate | 5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.69.00 | Other | 5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.69.00.10 | Sodium permanganate | Free | 301: 25%S122: 10% |
| 2841.69.00.90 | Other | Free | 301: 25%S122: 10% |
| 2841.70 | Molybdates: | Free | 301: 25%S122: 10% |
| 2841.70.10.00 | Of ammonium | 4.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.70.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.80.00 | Tungstates (wolframates) | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2841.80.00.10 | Of ammonium | Free | 301: 25%S122: 10% |
| 2841.80.00.20 | Of calcium | Free | 301: 25%S122: 10% |
| 2841.80.00.50 | Other | Free | 301: 25%S122: 10% |
| 2841.90 | Other: | Free | 301: 25%S122: 10% |
| 2841.90.10.00 | Vanadates | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.90.20.00 | Ammonium perrhenate | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.90.30.00 | Potassium stannate | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.90.40.00 | Aluminates | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.90.45.00 | Chromates of zinc or of lead | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2841.90.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) |
2842 — Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides
#Heading 2842 contains 7 HTS lines. General U.S. duty rates: Free–3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2842
Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides:
Free
2842.10.00.00
Double or complex silicates, including aluminosilicates whether or not chemically defined
3.7%
2842.90
Other:
Free
2842.90.10.00
Fulminates, cyanates and thiocyanates
3.1%
2842.90.90
Other
3.3%
2842.90.90.10
Selenides and tellurides
2842.90.90.50
Other
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2842 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides: | Free | 301: 25%S122: 10% |
| 2842.10.00.00 | Double or complex silicates, including aluminosilicates whether or not chemically defined | 3.7% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,K,KR,MA,OM,P, PA,PE,S,SG) |
| 2842.90 | Other: | Free | 301: 25%S122: 10% |
| 2842.90.10.00 | Fulminates, cyanates and thiocyanates | 3.1% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2842.90.90 | Other | 3.3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2842.90.90.10 | Selenides and tellurides | 301: 25%S122: 10%hts_special: | |
| 2842.90.90.50 | Other | 301: 25%S122: 10%hts_special: |
2843 — Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals
#Heading 2843 contains 6 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2843
Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals:
Free
2843.10.00.00
Colloidal precious metals
5.5%
2843.21.00.00
Silver nitrate
3.7%
2843.29.01.00
Other
3.7%
2843.30.00.00
Gold compounds
5%
2843.90.00.00
Other compounds; amalgams
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2843 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals: | Free | 301: 25%S122: 10% |
| 2843.10.00.00 | Colloidal precious metals | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2843.21.00.00 | Silver nitrate | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2843.29.01.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2843.30.00.00 | Gold compounds | 5% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2843.90.00.00 | Other compounds; amalgams | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
2844 — Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products
#Heading 2844 contains 31 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2844
Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products:
Free
2844.10
Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds:
Free
2844.10.10.00
Uranium metal
5%
2844.10.20
Uranium compounds
Free
2844.10.20.10
Oxide
Free
2844.10.20.25
Hexafluoride
Free
2844.10.20.55
Other
Free
2844.10.50.00
Other
5%
2844.20.00
Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products
Free
2844.20.00.10
Oxide
Free
2844.20.00.20
Fluorides
Free
2844.20.00.30
Other
Free
2844.20.00.50
Other
Free
2844.30
Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products:
Free
2844.30.10.00
Thorium compounds
5.5%
2844.30.20
Uranium compounds
Free
2844.30.20.10
Oxide
Free
2844.30.20.20
Fluorides
Free
2844.30.20.50
Other
Free
2844.30.50
Other
5%
2844.30.50.10
Uranium metal
Free
2844.30.50.50
Other
Free
2844.41.00.00
Tritium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing tritium or its compounds
Free
2844.42.00.00
Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds
Free
2844.43.00
Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds
Free
2844.43.00.10
Elements, isotopes and compounds with cobalt-60 radioactivity only
Free
2844.43.00.21
Americium-241, californium-252, cesium-137, gadolinium-153, idium-192, promethium-147, radium-226, selenium-75, or ytterbium-169
Free
2844.43.00.28
Other
Free
2844.43.00.50
Other
Free
2844.44.00.00
Radioactive residues
Free
2844.50.00.00
Spent (irradiated) fuel elements (cartridges) of nuclear reactors
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2844 | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: | Free | 301: 25%S122: 10% |
| 2844.10 | Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds: | Free | 301: 25%S122: 10% |
| 2844.10.10.00 | Uranium metal | 5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2844.10.20 | Uranium compounds | Free | 301: 25%S122: 10% |
| 2844.10.20.10 | Oxide | Free | 301: 25%S122: 10% |
| 2844.10.20.25 | Hexafluoride | Free | 301: 25%S122: 10% |
| 2844.10.20.55 | Other | Free | 301: 25%S122: 10% |
| 2844.10.50.00 | Other | 5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2844.20.00 | Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products | Free | 301: 25%S122: 10% |
| 2844.20.00.10 | Oxide | Free | 301: 25%S122: 10% |
| 2844.20.00.20 | Fluorides | Free | 301: 25%S122: 10% |
| 2844.20.00.30 | Other | Free | 301: 25%S122: 10% |
| 2844.20.00.50 | Other | Free | 301: 25%S122: 10% |
| 2844.30 | Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products: | Free | 301: 25%S122: 10% |
| 2844.30.10.00 | Thorium compounds | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2844.30.20 | Uranium compounds | Free | 301: 25%S122: 10% |
| 2844.30.20.10 | Oxide | Free | 301: 25%S122: 10% |
| 2844.30.20.20 | Fluorides | Free | 301: 25%S122: 10% |
| 2844.30.20.50 | Other | Free | 301: 25%S122: 10% |
| 2844.30.50 | Other | 5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2844.30.50.10 | Uranium metal | Free | 301: 25%S122: 10% |
| 2844.30.50.50 | Other | Free | 301: 25%S122: 10% |
| 2844.41.00.00 | Tritium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing tritium or its compounds | Free | 301: 25%S122: 10% |
| 2844.42.00.00 | Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds | Free | 301: 25%S122: 10% |
| 2844.43.00 | Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds | Free | 301: 25%S122: 10% |
| 2844.43.00.10 | Elements, isotopes and compounds with cobalt-60 radioactivity only | Free | 301: 25%S122: 10% |
| 2844.43.00.21 | Americium-241, californium-252, cesium-137, gadolinium-153, idium-192, promethium-147, radium-226, selenium-75, or ytterbium-169 | Free | 301: 25%S122: 10% |
| 2844.43.00.28 | Other | Free | 301: 25%S122: 10% |
| 2844.43.00.50 | Other | Free | 301: 25%S122: 10% |
| 2844.44.00.00 | Radioactive residues | Free | 301: 25%S122: 10% |
| 2844.50.00.00 | Spent (irradiated) fuel elements (cartridges) of nuclear reactors | Free | 301: 25%S122: 10% |
2845 — Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined
#Heading 2845 contains 6 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2845
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined:
Free
2845.10.00.00
Heavy water (Deuterium oxide)
Free
2845.20.00.00
Boron enriched in boron-10 and its compounds
Free
2845.30.00.00
Lithium enriched in lithium-6 and its compounds
Free
2845.40.00.00
Helium-3
Free
2845.90.01.00
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2845 | Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2845.10.00.00 | Heavy water (Deuterium oxide) | Free | 301: 25%S122: 10% |
| 2845.20.00.00 | Boron enriched in boron-10 and its compounds | Free | 301: 25%S122: 10% |
| 2845.30.00.00 | Lithium enriched in lithium-6 and its compounds | Free | 301: 25%S122: 10% |
| 2845.40.00.00 | Helium-3 | Free | 301: 25%S122: 10% |
| 2845.90.01.00 | Other | Free | 301: 25%S122: 10% |
2846 — Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals
#Heading 2846 contains 16 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2846
Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:
Free
2846.10.00
Cerium compounds
5.5%
2846.10.00.10
Cerium oxides
Free
2846.10.00.50
Other
Free
2846.90
Other:
Free
2846.90.20
Mixtures of rare-earth oxides or of rare-earth chlorides
Free
2846.90.20.05
Containing lanthanum as the predominant metal
Free
2846.90.20.15
Containing yttrium or scandium as the predominant metal
Free
2846.90.20.40
Other
Free
2846.90.20.82
Containing yttrium or scandium as the predominant metal
Free
2846.90.20.84
Other
Free
2846.90.40.00
Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent
Free
2846.90.80
Other
3.7%
2846.90.80.70
Containing lanthanum as the predominant metal
Free
2846.90.80.75
Other
Free
2846.90.80.90
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2846 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals: | Free | 301: 25%S122: 10% |
| 2846.10.00 | Cerium compounds | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2846.10.00.10 | Cerium oxides | Free | 301: 25%S122: 10% |
| 2846.10.00.50 | Other | Free | 301: 25%S122: 10% |
| 2846.90 | Other: | Free | 301: 25%S122: 10% |
| 2846.90.20 | Mixtures of rare-earth oxides or of rare-earth chlorides | Free | 301: 25%S122: 10% |
| 2846.90.20.05 | Containing lanthanum as the predominant metal | Free | 301: 25%S122: 10% |
| 2846.90.20.15 | Containing yttrium or scandium as the predominant metal | Free | 301: 25%S122: 10% |
| 2846.90.20.40 | Other | Free | 301: 25%S122: 10% |
| 2846.90.20.82 | Containing yttrium or scandium as the predominant metal | Free | 301: 25%S122: 10% |
| 2846.90.20.84 | Other | Free | 301: 25%S122: 10% |
| 2846.90.40.00 | Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent | Free | 301: 25%S122: 10% |
| 2846.90.80 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) |
| 2846.90.80.70 | Containing lanthanum as the predominant metal | Free | 301: 25%S122: 10% |
| 2846.90.80.75 | Other | Free | 301: 25%S122: 10% |
| 2846.90.80.90 | Other | Free | 301: 25%S122: 10% |
2847 — Hydrogen peroxide, whether or not solidified with urea
#Heading 2847 contains 1 HTS line. General U.S. duty rates: 3.7%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2847.00.00.00 | Hydrogen peroxide, whether or not solidified with urea | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2849 — Carbides, whether or not chemically defined
#Heading 2849 contains 10 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2849
Carbides, whether or not chemically defined:
Free
2849.10.00.00
Of calcium
1.8%
2849.20
Of silicon:
Free
2849.20.10.00
Crude
Free
2849.20.20.00
In grains, or ground, pulverized or refined
0.5%
2849.90
Other:
Free
2849.90.10.00
Of boron
3.7%
2849.90.20.00
Of chromium
4.2%
2849.90.30.00
Of tungsten
5.5%
2849.90.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2849 | Carbides, whether or not chemically defined: | Free | 301: 25%S122: 10% |
| 2849.10.00.00 | Of calcium | 1.8% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2849.20 | Of silicon: | Free | 301: 25%S122: 10% |
| 2849.20.10.00 | Crude | Free | 301: 25%S122: 10% |
| 2849.20.20.00 | In grains, or ground, pulverized or refined | 0.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2849.90 | Other: | Free | 301: 25%S122: 10% |
| 2849.90.10.00 | Of boron | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2849.90.20.00 | Of chromium | 4.2% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2849.90.30.00 | Of tungsten | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2849.90.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2850 — Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849
#Heading 2850 contains 6 HTS lines. General U.S. duty rates: Free–5.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2850.00
Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849:
Free
2850.00.05.00
Of calcium
Free
2850.00.07.00
Of titanium
4.9%
2850.00.10.00
Of tungsten
5.5%
2850.00.20.00
Of vanadium
5.5%
2850.00.50.00
Other
3.7%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2850.00 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: | Free | 301: 25%S122: 10% |
| 2850.00.05.00 | Of calcium | Free | 301: 25%S122: 10% |
| 2850.00.07.00 | Of titanium | 4.9% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2850.00.10.00 | Of tungsten | 5.5% | 301: 25%S122: 10%hts_special: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG) |
| 2850.00.20.00 | Of vanadium | 5.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2850.00.50.00 | Other | 3.7% | 301: 25%S122: 10%hts_special: Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2852 — Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
#Heading 2852 contains 7 HTS lines. General U.S. duty rates: Free–3%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2852
Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams:
Free
2852.10
Chemically defined:
Free
2852.10.10.00
Mercuric oxide, mercuric cyanide, mercuric oxycyanide and mercuric potassium cyanide
Free
2852.10.90.00
Other
3%
2852.90
Other:
Free
2852.90.05.00
Albuminates, tannates and phosphides of mercury
Free
2852.90.90.00
Other
3%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2852 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams: | Free | 301: 25%S122: 10% |
| 2852.10 | Chemically defined: | Free | 301: 25%S122: 10% |
| 2852.10.10.00 | Mercuric oxide, mercuric cyanide, mercuric oxycyanide and mercuric potassium cyanide | Free | 301: 25%S122: 10% |
| 2852.10.90.00 | Other | 3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2852.90 | Other: | Free | 301: 25%S122: 10% |
| 2852.90.05.00 | Albuminates, tannates and phosphides of mercury | Free | 301: 25%S122: 10% |
| 2852.90.90.00 | Other | 3% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
2853 — Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals
#Heading 2853 contains 8 HTS lines. General U.S. duty rates: Free–2.8%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
2853
Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals:
Free
2853.10.00.00
Cyanogen chloride (chloorcyan)
2.8%
2853.90
Other:
Free
2853.90.10.00
Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous
2.6%
2853.90.50.00
Of other metals or nonmetals
Free
2853.90.90
Other
2.8%
2853.90.90.10
Gallium arsenide wafers, undoped
Free
2853.90.90.90
Other
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 2853 | Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals: | Free | 301: 25%S122: 10% |
| 2853.10.00.00 | Cyanogen chloride (chloorcyan) | 2.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2853.90 | Other: | Free | 301: 25%S122: 10% |
| 2853.90.10.00 | Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous | 2.6% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2853.90.50.00 | Of other metals or nonmetals | Free | 301: 25%S122: 10% |
| 2853.90.90 | Other | 2.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 2853.90.90.10 | Gallium arsenide wafers, undoped | Free | 301: 25%S122: 10% |
| 2853.90.90.90 | Other | Free | 301: 25%S122: 10% |
Frequently Asked Questions — Chapter 28
Sources & Methodology
- Base HTS rates: U.S. International Trade Commission — Harmonized Tariff Schedule (2025 edition, Chapter 28). “General rate” shows the min–max range across all 10-digit subheadings.
- Section 301 rates: Office of the U.S. Trade Representative — Section 301 action lists. Flags indicate HTS lines listed on USTR China 301 Lists 1–4B.
- Reciprocal tariffs: Based on the post-SCOTUS Section 122 framework (February 2026). See the TariffCenter Tariff Tracker for current program status.
- Verify before importing: U.S. Customs and Border Protection — Rulings Online or consult a licensed customs broker for binding classification rulings.
Glossary
- General rate (MFN rate)
- The base import duty applied to all World Trade Organization members under Most-Favored-Nation treatment. This is the standard rate shown in the General Rate column.
- Section 301 tariff (301: 7.5%–100%)
- An additional surcharge authorized under Section 301 of the Trade Act of 1974, imposed on selected imports from China. Rates vary by product list and category: Lists 1–3 at 25%, List 4A at 7.5%, with four-year review increases up to 100% on strategic sectors (EVs, semiconductors, solar, medical equipment). Applied on top of the MFN base rate.
- Section 122 surcharge (Sec. 122: 15%)
- A 15% global surcharge on all imports enacted under Section 122 authority after the February 2026 SCOTUS ruling struck down IEEPA-based reciprocal tariffs. USMCA-qualifying goods are exempt. Stacked on top of base and Section 301 rates.
- Section 232 tariff (S232)
- Tariffs on qualifying steel, aluminum, copper, and derivative products imposed under Section 232 of the Trade Expansion Act of 1962 on national security grounds. Rates now vary by product bucket and current Chapter 99 treatment.
- hts_special / Special rates
- Preferential duty rates available to imports from countries with Free Trade Agreements or other special trade programs with the U.S. Country codes: AU (Australia), BH (Bahrain), CA (Canada), CL (Chile), CO (Colombia), IL (Israel), JO (Jordan), KR (South Korea), MA (Morocco), MX (Mexico), OM (Oman), PA (Panama), PE (Peru), SG (Singapore). Free (AU,BH...) means duty-free treatment for those partners.