Heading 2835
HTS code 2835 — Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
- Chapter
- 28 — Inorganic chemicals
- Tariff lines
- 12
- General duty
- General duty rates from 1.4% to 4.1%, with 3 duty-free lines
Tariff lines under heading 2835
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 2835.10.0000 | Phosphinates (hypophosphites) and phosphonates (phosphites) (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined) | 3.1% | kg |
| 2835.22.0000 | Of mono- or disodium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates) | 1.4% | kg |
| 2835.24.0000 | Of potassium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates) | 3.1% | kg |
| 2835.25.0000 | Calcium hydrogenorthophosphate ("Dicalcium phosphate") (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates) | Free | kg |
| 2835.26.0000 | Other phosphates of calcium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates) | Free | kg |
| 2835.29.1000 | Of aluminum (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates > Other) | Free | kg |
| 2835.29.2000 | Of triammonium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates > Other) | 1.5% | kg |
| 2835.29.3000 | Of trisodium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates > Other) | 2.2% | kg |
| 2835.29.5100 | Other (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Phosphates > Other) | 4.1% | kg |
| 2835.31.0000 | Sodium triphosphate (Sodium tripolyphosphate) (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Polyphosphates) | 1.4% | kg |
| 2835.39.1000 | Of potassium (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Polyphosphates > Other) | 3.1% | kg |
| 2835.39.5000 | Other (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined > Polyphosphates > Other) | 3.7% | kg |
Documents required to import under 2835
Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.
- Commercial InvoiceRequired
- Packing ListRequired
- Bill of Lading / Airway BillRequired
- CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
- CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
- Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
- Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
- Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
- Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
- Safety Data Sheet (SDS/MSDS)Required
- EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
- EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)
Common questions
- What is HTS code 2835?
- HTS heading 2835 covers phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. It sits in Chapter 28 (inorganic chemicals) of the US Harmonized Tariff Schedule and contains 12 tariff lines.
- What is the duty rate for HTS 2835?
- General duty rates from 1.4% to 4.1%, with 3 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
- How many digits does a full HTS code have?
- US import entries require the full 10-digit HTS code. Heading 2835 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.
Related headings in Chapter 28
- 2801Fluorine, chlorine, bromine and iodine
- 2802Sulfur, sublimed or precipitated; colloidal sulfur
- 2803Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
- 2804Hydrogen, rare gases and other nonmetals
- 2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury
- 2806Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid
- 2807Sulfuric acid; oleum
- 2808Nitric acid; sulfonitric acids