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2520.10.00.00

Gypsum; anhydrite

Classification path

  1. Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders
  2. Gypsum; anhydrite

Rates of duty

General (MFN)
Free
Column 2Cuba, North Korea, Russia, Belarus
Free
Unit of quantity
t

Related lines in heading 2520

About heading 2520

Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders

Heading 2520 covers gypsum and anhydrite in their natural or crude form, and plasters made from calcined gypsum or calcium sulfate. The heading splits into two lines: 2520.10.00.00 for gypsum and anhydrite, and 2520.20.00.00 for plasters, including plasters with small amounts of accelerators or retarders or color. Both lines carry a general (MFN) rate of Free.

Full guide to heading 2520

Products in this heading

  • Crude gypsum rock
  • Calcined gypsum
  • Plaster of paris
  • Anhydrite (natural calcium sulfate)
  • Gypsum building plaster
  • Dental plaster
  • Molding and casting plaster
  • Calcium sulfate plaster with added retarder

Frequently asked questions

What is the HTS code for gypsum and anhydrite?

Gypsum and anhydrite are classified under 2520.10.00.00, with a general (MFN) rate of Free.

What is the duty on gypsum plasters?

Plasters of calcined gypsum or calcium sulfate fall under 2520.20.00.00, with a general (MFN) rate of Free.

How do I classify calcined gypsum sold as plaster?

Calcined gypsum put up as plaster is classified under 2520.20.00.00, while crude gypsum stays under 2520.10.00.00; both carry a general (MFN) rate of Free.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 2520.10.00.00: Gypsum; anhydrite, Free duty | HTSBase