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Chapter 25 HTS Revision 18 (2026)

Tariff Schedule

Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement

8 provisions in this chapter where a USMCA claim changes the duty.

HTSDescription GeneralUSMCASection 338
2511.10.50.00 Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of… $1.25/t Free
2515.12.20.00 Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and… 3% Free
2515.20.00.00 Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and… 3% Free
2516.12.00 Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by… 2.8% Free
2516.20.20.00 Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by… 3% Free
2516.90.00 Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by… 3% Free
2518.20.00.00 Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into… 3% Free
2530.90.20.00 Mineral substances not elsewhere specified or included: Natural micaceous iron oxides 2.9% Free