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Tandom · Duty calculator
HTS 2504.10.50.00 is the U.S. Harmonized Tariff Schedule classification for In powder or in flakes, other. It's a 10-digit statistical line in Chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement, Section V: Mineral Products, used by U.S. Customs and Border Protection to determine the duty rate at entry. 1 Chapter 99 flag links to this code (1 active), and 1 potentially relevant AD/CVD order flag links to this code. A Chapter 99 flag is not a shipment-level determination; origin, product facts, claims, and entry date control whether a provision applies.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 flags linked to this code; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.91.06 | section_301Active | The duty provided in the applicable subheading + 25% |
HTS-linked orders that may be relevant to imports under this code. An HTS link is a screening aid; actual coverage depends on each order's written product scope. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 2504.10.50.00 is the U.S. Harmonized Tariff Schedule classification for In powder or in flakes, other. It belongs to Chapter 25 of the HTSUS.
The general (Column 1) duty rate for HTS 2504.10.50.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 2504.10.50.00 is 10%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Belarus, Cuba, North Korea, and Russia).
Tandom links section_301 provision 9903.91.06 to HTS 2504.10.50.00. Its published rate notation is The duty provided in the applicable subheading + 25%, and its status on 2026-09-25 is active. A flag is not a shipment-level determination; check origin, product facts, claims, and entry date.
Tandom links 1 potentially relevant AD/CVD order flag to this code: C-570-195 (CVD, China). An HTS link is a screening aid; review each order's written scope and linked case materials to determine whether a product is covered.
Tandom guides relevant to this code
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
Open resource
A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
Open resource
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
Open resource
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
Open resource
Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
Open resource
What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
Open resource