VOL. I · WASHINGTON TARIFF DECISION ASSISTANT · April 25, 2026
§ HTS 2520 · US import duty

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

HTS 2520 covers Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders:, classified under HS chapter 25. The MFN (general column) base duty is Free. No Chapter 99 overlays are active. Imports from China typically incur the Section 301 / IEEPA additional duties listed above; imports from Vietnam, Mexico, India and other origins generally pay only the MFN base unless an origin-specific overlay applies. Antidumping (AD) and countervailing duty (CVD) cases are NOT evaluated on this page — check ADCVD orders separately. Source: USITC HTS release 2026HTSRev6. CBP determines the binding classification and duty at entry.

Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders:
HTS CODE
2520
General (MFN)
§99 overlays0

Base tariff columnsBase tariff columns

Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.

General (MFN)Free
Special
Other (Column 2)

Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD and product-specific exclusions are not evaluated by default.

Chapter 99 overlaysChapter 99 overlays

No Chapter 99 overlays are currently linked to this HS code.

Sample duty by originSample duty by origin

Illustrative calculation at USD 10,000 customs value, standard (non-preferential) claim. Chapter 99 additional duties applied where status is active.

Origin Base rate Chapter 99 Total rate Duty (USD)
China (CN) 0% 0% 0% $0.00
Vietnam (VN) 0% 0% 0% $0.00
Mexico (MX) 0% 0% 0% $0.00
India (IN) 0% 0% 0% $0.00
South Korea (KR) 0% 0% 0% $0.00

§ RELATED ENTRIESAll subheadings under HTS 2520

Direct children of HTS heading 2520. Drill in to see actual column rates.

§ FAQFrequently asked questions

What is the US import duty for HTS 2520?
HTS 2520 (Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders:) has a general (MFN) column rate of Free/—. No Chapter 99 overlays are currently linked to this line. Final duty is determined by CBP at entry.
Does Section 301 or IEEPA tariff apply to HTS 2520?
No Chapter 99 overlay is linked to this line in our current snapshot. That means no Section 301, IEEPA, or reciprocal additional duty is mechanically attached. Always double-check against the latest Federal Register for proclamations that may not yet be reflected in the HTS export.
How do I compare duty from different countries for HTS 2520?
Use the origin compare view to evaluate this HS code against alternative countries. The calculator applies each country-specific Chapter 99 overlay and the appropriate column rate.
Is this the binding duty determination?
No. This page is a reference built on USITC + Federal Register open data. The binding classification and duty amount is determined by CBP at entry. AD/CVD and product-specific exclusions require separate review.