Sulfites, thiosulfates (HS 283230)
Sulfites, thiosulfates (HS 283230) has 466 U.S. import bill-of-lading shipment records between Nov 2019 and Jul 2026. The largest U.S. importer of Sulfites, thiosulfates is UNIVAR SOLUTIONS USA INC, with 89 shipments, followed by GLOBAL CHEMICAL RESOURCES INC and ESSECO USA LLC. The leading supplier is HONGKONG JIHAI CHEMICAL INDUSTRIAL CO, with 64 shipments, followed by SHANXI RELIANCE CHEMICALS CO LTD and CHINA NAFINE GROUP. Goods originate mainly from CHINA and GERMANY, arriving primarily at OAKLAND, CA. Import volume has risen over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through July 2026
Shipments over time (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Sulfites, thiosulfates (HS 283230), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is SHANXI RELIANCE CHEMICALS CO LTD → GLOBAL CHEMICAL RESOURCES INC with 50 shipments, followed by CHINA NAFINE GROUP → UNIVAR SOLUTIONS USA INC (43) and HONGKONG JIHAI CHEMICAL INDUSTRIAL CO → UNIVAR SOLUTIONS USA INC (35).
Top U.S. importers
| Importer | Shipments |
|---|---|
| UNIVAR SOLUTIONS USA INC | 89 |
| GLOBAL CHEMICAL RESOURCES INC | 57 |
| ESSECO USA LLC | 45 |
| ESSECO USA | 26 |
| UNIVAR USA INCORPORATED | 25 |
Top suppliers
| Supplier | Shipments |
|---|---|
| HONGKONG JIHAI CHEMICAL INDUSTRIAL CO | 64 |
| SHANXI RELIANCE CHEMICALS CO LTD | 55 |
| CHINA NAFINE GROUP | 48 |
| CHANGSHA WEICHUANG CHEMICAL CO LTD | 42 |
| CHEMIEWERK BAD KOESTRITZ GMBH | 31 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 322 |
| GERMANY | 32 |
| REPUBLIC OF KOREA | 30 |
| JAPAN | 24 |
| INDIA | 17 |
| TAIWAN | 11 |
| SAINT HELENA | 6 |
| MALAYSIA | 5 |
| N/A | 5 |
| BELGIUM | 3 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| OAKLAND, CA | 106 |
| BALTIMORE, MD | 89 |
| HOUSTON, TX | 71 |
| LOS ANGELES, CA | 49 |
| LONG BEACH, CA | 46 |
| TACOMA, WA | 34 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 24 |
| SEATTLE, WA | 20 |
| SAVANNAH, GA | 10 |
| NORFOLK, VA | 7 |
Harmonized System classification
HS code 283230 — Sulfites, thiosulfates. The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.
Frequently asked questions about importing Sulfites, thiosulfates
Who imports Sulfites, thiosulfates (HS 283230)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Sulfites, thiosulfates include UNIVAR SOLUTIONS USA INC, GLOBAL CHEMICAL RESOURCES INC, ESSECO USA LLC, ESSECO USA, and UNIVAR USA INCORPORATED.
Who is the largest U.S. importer of Sulfites, thiosulfates?
UNIVAR SOLUTIONS USA INC is the largest U.S. importer of Sulfites, thiosulfates (HS 283230), with 89 bill-of-lading shipment records.
Who are the top suppliers of Sulfites, thiosulfates?
Leading suppliers shipping Sulfites, thiosulfates (HS 283230) to the U.S. include HONGKONG JIHAI CHEMICAL INDUSTRIAL CO, SHANXI RELIANCE CHEMICALS CO LTD, CHINA NAFINE GROUP, CHANGSHA WEICHUANG CHEMICAL CO LTD, and CHEMIEWERK BAD KOESTRITZ GMBH.
How many U.S. shipments of Sulfites, thiosulfates are there?
ImportDoor has 466 U.S. import shipment records under HS code 283230, spanning Nov 2019 to Jul 2026.
Where is Sulfites, thiosulfates imported from?
Sulfites, thiosulfates is imported into the U.S. primarily from CHINA, GERMANY, and REPUBLIC OF KOREA.
Find Sulfites, thiosulfates importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 283230, with contact details and container-level shipment records on ImportDoor.
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