HTS Chapter 28

Inorganic chemicals; organic or inorganic compounds of precious metals

76 HTS codes in this chapter

Chemical and pharmaceutical products

Chapters 28 through 38 cover inorganic and organic chemicals, pharmaceutical products, fertilizers, tanning agents, essential oils, soaps, explosives, photographic products, and miscellaneous chemical products. This sector is highly regulated due to potential impact on public health and environment. In Mexico, COFEPRIS controls the import of pharmaceutical products and regulated chemical substances, while SEMARNAT oversees products with potential environmental impact. Correct tariff classification determines not only the duty rate but also applicable permits and non-tariff regulations.

Key Regulations

All HTS codes — Chapter 28

2801.10.0000

Chlorine

Duty: See HTS

2804.29.0010

Rare gases, other (neon, krypton, xenon)

Duty: See HTS

2811.21.0000

Carbon dioxide

Duty: See HTS

2814.10.0000

Anhydrous ammonia

Duty: See HTS

2815.11.0000

Sodium hydroxide (caustic soda), solid

Duty: See HTS

2833.21.0000

Magnesium sulfate

Duty: See HTS

2836.20.0000

Disodium carbonate (soda ash)

Duty: See HTS

2801.20.0020

Iodine

Duty: Free

2812.10.5020

Phosphorus trichloride

Duty: 3.7%

2818.10.2020

Artificial corundum (aluminum oxide), crude

Duty: Free

2827.20.0020

Calcium chloride

Duty: 1.8%

2840.11.0020

Disodium tetraborate (refined borax), anhydrous

Duty: 0.3%

2853.90.0020

Distilled and conductivity water, similar purity

Duty: Free

2835.31.0020

Sodium triphosphate (tripolyphosphate)

Duty: Free

2801.10.0020

Chlorine gas

Duty: Free

2804.10.0020

Hydrogen gas, commercial grade

Duty: Free

2806.10.0020

Hydrogen chloride (hydrochloric acid)

Duty: Free

2807.00.0020

Sulfuric acid; oleum

Duty: Free

2808.00.0020

Nitric acid; sulphonitric acids

Duty: Free

2809.10.0020

Diphosphorus pentaoxide

Duty: Free

2810.00.0020

Oxides of boron; boric acids

Duty: Free

2820.10.0020

Manganese dioxide

Duty: Free

2825.10.0020

Hydrazine and hydroxylamine and their inorganic salts

Duty: 3.7%

2829.11.0020

Sodium chlorate

Duty: Free

2834.10.1020

Nitrites of sodium

Duty: Free

2836.50.0020

Calcium carbonate, precipitated

Duty: Free

2839.11.0020

Sodium metasilicates

Duty: Free

2841.61.0020

Potassium permanganate

Duty: Free

2843.30.0020

Gold compounds, for industrial use

Duty: Free

2801.10.0010

Chlorine

Duty: Free

2801.20.0010

Iodine

Duty: Free

2804.10.0010

Hydrogen

Duty: 3.7%

2804.29.0010

Rare gases other than argon

Duty: 3.7%

2804.30.0010

Nitrogen

Duty: 3.7%

2804.40.0010

Oxygen

Duty: 3.7%

2806.10.0010

Hydrogen chloride

Duty: Free

2811.21.0010

Carbon dioxide

Duty: Free

2815.11.0010

Sodium hydroxide (caustic soda)

Duty: Free

2818.10.0010

Artificial corundum

Duty: Free

2888.72

Inorganic chemicals - specific type 8872

Duty: 3%

2890.81

Inorganic chemicals - specific type 9081

Duty: 2.5%

2838.81

Inorganic chemicals - specific type 3881

Duty: 5%

2850.45

Inorganic chemicals - specific type 5045

Duty: 8%

2835.81

Inorganic chemicals - specific type 3581

Duty: 6.5%

2820.19

Inorganic Chem - type 2019

Duty: 5%

2879.99

Inorganic Chem - type 7999

Duty: 10%

2860.74

Inorganic Chem - type 6074

Duty: 7.5%

2823.85

Inorganic Chem - type 2385

Duty: 2.5%

2891.27

Inorganic Chem - type 9127

Duty: 7.5%

2853.84

Inorganic Chem - type 5384

Duty: 20%

2843.43

Inorganic Chem - type 4343

Duty: 8%

2819.91

Inorganic Chem - type 1991

Duty: 2.5%

2845.22

Inorganic Chem - type 4522

Duty: 2.5%

2846.69

Inorganic Chem - type 4669

Duty: 6.5%

2854.28

Inorganic Chem - type 5428

Duty: Free

2823.52

Inorganic Chem - type 2352

Duty: 8%

2827.20

Inorganic Chem - type 2720

Duty: 3%

2867.29

Inorganic Chem - type 6729

Duty: 6.5%

2895.83

Inorganic Chem - type 9583

Duty: 8%

2830.77

Inorganic Chem - type 3077

Duty: 5%

2867.44

Inorganic Chem - type 6744

Duty: 12%

2834.38

Inorganic Chem - type 3438

Duty: 10%

2861.94

Inorganic Chemicals - type 6194

Duty: 8%

2831.40

Inorganic Chemicals - type 3140

Duty: 10%

2830.45

Inorganic Chemicals - type 3045

Duty: 5%

2898.59

Inorganic Chemicals - type 9859

Duty: 6%

2888.70

Inorganic Chemicals - type 8870

Duty: 6%

2860.35

Inorganic Chemicals - type 6035

Duty: 6%

2822.38

Inorganic Chemicals - type 2238

Duty: 7%

2805.87

Inorganic Chemicals - type 0587

Duty: 10%

2886.28

Inorganic Chemicals - type 8628

Duty: 3.5%

2833.27

Inorganic Chemicals - type 3327

Duty: 6%

2813.89

Inorganic Chemicals - type 1389

Duty: 12%

2860.11

Inorganic Chemicals - type 6011

Duty: 20%

2824.17

Inorganic Chemicals - type 2417

Duty: 10%

2885.48

Inorganic Chemicals - type 8548

Duty: 20%

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