Loading...
HSChapter 26
U.S. imports of ash and slag, including seaweed ash (kelp), nesoi (HS 262190) totaled $1.2M in April 2026, traded with 14 countries.
Last updated: April 2026 dataClassified under a single 10-digit line (2621900000), this residual category captures industrial ash and slag not elsewhere specified, including kelp-derived seaweed ash used in specialty chemical and fertilizer applications. The breadth of the heading means correct classification often hinges on the origin material and intended use — blast furnace slag, fly ash, and kelp ash each carry distinct downstream regulatory and commercial profiles. Canada leads US import supply, followed by Turkey and China, reflecting both proximity-driven bulk slag trade and specialty mineral sourcing. Importers should confirm that ash or slag byproducts from metal smelting are not more specifically classifiable under Chapter 26's dedicated slag headings before defaulting to this NESOI line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The NESOI designation means 262190 applies only when no other Chapter 26 heading more precisely describes the material. Blast furnace slag from iron production, for example, may fall under 2618 or 2619, while ash from specific metals has dedicated subheadings. A licensed customs broker or binding ruling from CBP is the most reliable way to confirm classification for ambiguous residues.
Both fall under the same 10-digit tariff line (2621900000), so duty treatment is identical. However, kelp-derived ash may attract additional scrutiny depending on its intended use — for example, as a soil amendment or food-grade mineral supplement — which could trigger FDA or EPA review separate from customs classification.
Supplier Network
Get discovered by U.S. importers searching for HS 262190 — Ash and Slag, Including Seaweed Ash (Kelp), NESOI. Be the first supplier listed.
Monthly import values over time