HTS heading 2811: Other inorganic acids and other inorganic oxygen compounds of nonmetals
Heading 2811 of the US Harmonized Tariff Schedule covers Other inorganic acids and other inorganic oxygen compounds of nonmetals. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.
Heading 2811 at a glance
- 12 rated tariff lines; 5 duty-free at the general (MFN) rate.
- Ad valorem general rates from 2.3% to 4.2%.
- Section 301 (products of China): 12 of 12 lines on a list in effect (List 3, List 4A).
Goods named in this heading (official line texts): Hydrogen fluoride (Hydrofluoric acid), Hydrogen cyanide (hydrocyanic acid), Arsenic acid, Hydrobromic acid, Carbon dioxide, Synthetic silica gel, Arsenic trioxide, Selenium dioxide, Sulfur dioxide.
Subheadings (6-digit)
- 2811.11: Other inorganic acids (1 line)
- 2811.12: Other inorganic acids (1 line)
- 2811.19: Other (3 lines)
- 2811.21: Other inorganic oxygen compounds of nonmetals (1 line)
- 2811.22: Silicon dioxide (2 lines)
- 2811.29: Other (4 lines)
All tariff lines in heading 2811
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 2811.11.00 | Hydrogen fluoride (Hydrofluoric acid) | Free | List 3 +25% | |
| 2811.12.00 | Hydrogen cyanide (hydrocyanic acid) | 4.2% | List 3 +25% | |
| 2811.19.10 | Other: Arsenic acid | 2.3% | List 4A +7.5% | |
| 2811.19.30 | Other: Hydrobromic acid | Free | List 3 +25% | |
| 2811.19.61 | Other: Other | 4.2% | List 3 +25% | |
| 2811.21.00 | Other inorganic oxygen compounds of nonmetals: Carbon dioxide | 3.7% | List 3 +25% | |
| 2811.22.10 | Silicon dioxide: Synthetic silica gel | 3.7% | List 3 +25% | |
| 2811.22.50 | Silicon dioxide: Other | Free | List 3 +25% | |
| 2811.29.10 | Other: Arsenic trioxide | Free | List 3 +25% | |
| 2811.29.20 | Other: Selenium dioxide | Free | List 3 +25% | |
| 2811.29.30 | Other: Sulfur dioxide | 4.2% | List 3 +25% | |
| 2811.29.50 | Other: Other | 3.7% | List 3 +25% |
All of chapter 28 · Chapter 28 rate summary · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.
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