HS 2521 — HS 2521
HS heading 2521 (HS 2521) spans 1 products in U.S. import records, with 12,085 bill-of-lading shipments. The most imported are Limestone flux.
Part of Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/heading/2521
Products under this heading
| HS | Product | Shipments |
|---|---|---|
| 252100 | Limestone flux | 12,085 |
Frequently asked questions about HS 2521
What is HS code 2521?
HS 2521 covers hs 2521. It is a 4-digit heading in chapter 25 (Salt; sulphur; earths and stone; plastering materials, lime and cement) of the Harmonized System, with 1 six-digit subheadings that appear in U.S. import records.
How many U.S. import shipments fall under HS 2521?
ImportDoor has 12,085 U.S. Customs bill-of-lading shipment records under HS heading 2521, updated monthly.
What is the most imported product under HS 2521?
Limestone flux (HS 252100) leads with 12,085 shipments.