Supplementary Definition Details (Avoid Classification Confusion)

1.Exclusive Characteristics as a Compound Fertilizer (Agricultural Scenario)

• A simple binary compound fertilizer: Contains only nitrogen and phosphorus without potassium, distinguished from NPK ternary compound fertilizers, and is a typical variety of N-P binary compound fertilizers.
• Classified as a water-soluble compound fertilizer: Highly soluble in water with a clear aqueous solution, applicable for drip irrigation, fertigation and foliar spraying, meeting the core indicators of water-soluble fertilizers.
• Key labeling words in agricultural materials: UP17-44 Urea Phosphate Compound Fertilizer, High-concentration Water-soluble N-P Fertilizer, N-P Fertilizer for Alkaline Soils.

2.Exclusive Characteristics as a Chemical Product (Industrial/Feed Scenario)

• Industrial/feed grades have stricter requirements for purity, impurity content and water solubility (e.g., feed grade needs to control heavy metals and fluoride ion content), belonging to fine chemical raw materials, which is different from the nutrient index orientation of agricultural grade compound fertilizers.

Key for Foreign Trade Customs Declaration: Declare by Application, Corresponding HS Codes for Different Attributes

This is the core application of classification in actual operation, directly determining customs classification and declaration requirements:

For agricultural compound fertilizer: Declare as N-P compound fertilizer, HS Code: 31056000, belonging to agricultural chemicals/chemical fertilizers, declared as general agricultural cargo.

For feed additive: Declare as feed nutrient supplement (N-P supplement), HS Code: 23099090, belonging to the category of feed chemical products.

For industrial use: Declare as Urea Phosphate (fine chemical raw material), HS Code: 28359090 (inorganic composite salt), belonging to the category of inorganic fine chemicals.

One-sentence Summary (For Foreign Trade/Industrial Labeling)