HS Code for Phosphate rock

Natural calcium phosphates, commonly referred to as phosphate rock, are classified under HS code 2510.20 when they have been ground. Chapter 25 of the Harmonized System covers salt, sulfur, earths, and stone, as well as plastering materials, lime, and cement. Heading 2510 is specifically designated for natural calcium phosphates, natural aluminium calcium phosphates, and phosphatic chalk. The distinction between subheadings 2510.10 and 2510.20 is based entirely on the physical state of the material: 2510.10 is for unground rock, while 2510.20 is for ground rock. Grinding is a mechanical process that increases the surface area of the mineral, often as a preliminary step for chemical processing or direct application in agriculture. This classification is vital for the mining and raw material sectors, as it distinguishes raw extracted ore from processed mineral products. The material must be natural and not chemically modified; once chemical treatment occurs to enhance nutrient availability, the product typically moves to Chapter 31 (Fertilizers).

Products Included

• Ground natural calcium phosphates
• Ground apatite
• Ground phosphorite
• Ground phosphatic chalk
• Ground natural aluminium calcium phosphates

Common Misclassification

The most common misclassification is using 2510.10, which is reserved for unground phosphate rock. Another error involves 2809, which covers pure phosphoric acid and diphosphorus pentaoxide, or 3103, which covers phosphatic fertilizers that have undergone chemical processing beyond simple grinding.

FAQ

What is the HS code for phosphate rock?

The HS code for ground natural phosphate rock is 2510.20, while unground rock is 2510.10.

Is ground phosphate rock considered a fertilizer?

While used in agriculture, it remains in Chapter 25 as a mineral product unless it has been chemically treated, which would move it to Chapter 31.