HS 281511

Solid Sodium Hydroxide (Caustic Soda)

U.S. imports of solid sodium hydroxide (caustic soda) (HS 281511) totaled $2.4M in April 2026, traded with 14 countries.

Last updated: April 2026 data

Solid caustic soda is a foundational industrial alkali used in pulp and paper manufacturing, water treatment, and chemical synthesis, classified under a single US tariff line (2815110000). Imports from Sweden, Thailand, and Taiwan dominate supply, reflecting global chlor-alkali production capacity. Solid form commands distinct handling and packaging requirements compared to liquid soda lye, and importers should verify whether Section 301 measures apply to shipments from specific origins.

Track Solid Sodium Hydroxide (Caustic Soda) and get alerts when trade data updates

Create a free account to build your watchlist

Create free account

Imports

$2.4M

from 14 countries · YTD: $10.3M

Exports

$1.0M

Deficit of $1.4M (net importer)

Trade balance: deficit of $1.4M (net importer)

YTD: $10.3M imported (April 2026)

94 shipments/month

Top Import Sources

View all

View all 14 trading partners

Import Trend (12 months)

Monthly import values over time

Geographic Breakdown

URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.

HS 284420

$450.1M

NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC

HS 284410

$242.8M

ANHYDROUS AMMONIA

HS 281410

$116.5M

ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES

HS 284443

$54.0M

ALUMINUM OXIDE, EXCEPT ARTIFICIAL CORUNDUM, NESOI

HS 281820

$44.6M

SULFURIC ACID; OLEUM

HS 280700

$34.8M

Suppliers

Supplier Network

Are you a supplier of this product?

Get discovered by U.S. importers searching for HS 281511 — Solid Sodium Hydroxide (Caustic Soda). Be the first supplier listed.

Trade Tools

HS Code Lookup Trade Balance Calculator All Tools

Frequently Asked Questions

How does solid sodium hydroxide differ from liquid caustic soda for classification purposes?

Solid sodium hydroxide falls under HTS 281511 (tariff line 2815110000), while aqueous solutions (soda lye) are classified under 281512. The physical form at time of importation determines the correct heading, so moisture content and packaging documentation are important at entry.

Which countries are the leading foreign suppliers of solid caustic soda to the US?

Sweden, Thailand, and Taiwan are the top suppliers of solid sodium hydroxide to the US market, followed by Germany and India. Origin matters for assessing potential Section 301 exposure on shipments from certain countries.

Suppliers

Supplier Network

Are you a supplier of this product?

Get discovered by U.S. importers searching for HS 281511 — Solid Sodium Hydroxide (Caustic Soda). Be the first supplier listed.

Imports

$2.4M

from 14 countries · YTD: $10.3M

Exports

$1.0M

Deficit of $1.4M (net importer)

Trade balance: deficit of $1.4M (net importer)

YTD: $10.3M imported (April 2026)

94 shipments/month

Top Import Sources

View all

View all 14 trading partners

Import Trend (12 months)

Monthly import values over time

Geographic Breakdown

Top U.S. entry points for this product, ranked by latest-month import value.

Top Import Sources

Import Trend (12 months)

Geographic Breakdown

Related Products

Suppliers

Are you a supplier of this product?

Trade Tools

Frequently Asked Questions

Suppliers

Are you a supplier of this product?

Top Import Sources

Import Trend (12 months)

Geographic Breakdown

Geographic Breakdown

Related Products

Geographic Breakdown