U.S. import tariffs · heading 3816

Heading 3816: Refractory cements, mortars, concretes and similar compositions, including dolomite…

Every line of heading 3816 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.

Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801

Chapter 38: Miscellaneous chemical products. Schedule checked on November 8, 2026.

Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →

Tariff lines

HTS codeOfficial descriptionGeneral rate
3816.00.10.00Dolomite ramming mixFree
3816.00.20Other3%
3816.00.20.10Clay
3816.00.20.50Other

Exporting this product from the U.S.?

Exports are reported with Schedule B numbers. Heading 3816 has 3 of them. Schedule B lookup →

  • 3816.00.1000DOLOMITE RAMMING MIX
  • 3816.00.2010REFRACTORY CEMENTS, MORTARS, CONCRETES AND SIMILAR COMPOSITIONS OF CLAY OTHER THAN PRODUCTS OF HEADING 3801
  • 3816.00.2050REFRACTORY CEMENTS, MORTARS, CONCRETES & SIMILAR COMPOSITIONS, EXCEPT CLAY, OTHER THAN PRODUCTS OF HEADING 3801

Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.

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