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HSChapter 28
U.S. imports of disodium carbonate (soda ash) (HS 283620) totaled $473K in May 2026, traded with 14 countries.
Importers of Disodium Carbonate (Soda Ash) paid $39K in duties in May 2026 — an effective duty rate of 10% on $384K in dutiable value, based on actual customs collections rather than the published tariff schedule. Disodium Carbonate (Soda Ash) imports of $473K in May 2026 ran 13% above the year-to-date monthly average of $419K.
Last updated: May 2026 dataCommercially known as soda ash, disodium carbonate is a foundational industrial alkali consumed in glass manufacturing, chemical synthesis, water treatment, and pulp and paper production. Mexico is the leading US import source under this heading — a reflection of both geographic proximity and large-scale trona-based soda ash production in North America — with France and Sweden also supplying volumes. The US is itself a major global producer of natural soda ash from Wyoming trona deposits, so imports tend to fill specific grade or logistics gaps rather than representing primary supply. All entries fall under the single tariff line 2836200000.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
US domestic production from Wyoming trona is cost-competitive for dense soda ash grades used in glass and chemicals, but importers may source foreign material for specific light-grade or refined specifications, to serve coastal markets where ocean freight is economical, or to meet contractual supply-diversification requirements. European suppliers like France and Sweden often supply higher-purity or specialty grades not always available domestically.
Importers should verify whether antidumping or countervailing duty orders are in effect for soda ash from specific origins at the time of entry, as trade remedy coverage can change. The US International Trade Commission and Commerce Department maintain current order lists. A licensed customs broker can confirm the applicable duty treatment for a given country of origin before contracting.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $143K | $24.2M | +$24.1M |
| INDIA | -- | $13.5M | +$13.5M |
| CHILE | -- | $11.2M | +$11.2M |
| INDONESIA | -- | $6.4M | +$6.4M |
| UNITED KINGDOM | -- | $6.2M | +$6.2M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2836200000 | DISODIUM CARBONATE | $424K | 9.09% | 78.09% | $39K |
DISODIUM CARBONATE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2836200000 | DISODIUM CARBONATE | $90.5M |
DISODIUM CARBONATE
425.3M kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| Port | Imports | Exports | Balance |
|---|---|---|---|
| PORTLAND, OR | -- | $43.0M | +$43.0M |
| LONGVIEW, WA | -- | $19.2M | +$19.2M |
| LAREDO, TX | $82K | $15.0M | +$15.0M |