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Phosphates of mono- or disodium (HS 283522)

Phosphates of mono- or disodium (HS 283522) has 10,805 U.S. import bill-of-lading shipment records between Nov 2019 and Aug 2026. The largest U.S. importer of Phosphates of mono- or disodium is LONGI SOLAR TECHNOLOGY U S INC, with 3,334 shipments, followed by BOVIET SOLAR USA LTD and VIETNAM SUNERGY JOINT STOCK COMPANY. The leading supplier is LONGI SOLAR TECHNOLOGY H K LIMIT, with 1,484 shipments, followed by LONGI H K TRADE LIMITED and LONGI SOLAR TECHNOLOGY HK LIMITED. Goods originate mainly from VIET NAM and CHINA, arriving primarily at LONG BEACH, CA. Import volume has held steady over the past 12 months versus the prior year.

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/283522-phosphates-of-mono-or-disodium

See all 10,805 shipments of HS 283522 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.

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Total shipments
10,805
First seen
Nov 2019
Last seen
Aug 2026
Origin countries
10

Shipments by month (last 24 months)

Sep 2024Aug 2026

Trade flow: top suppliers → U.S. importers

The strongest supplier-importer relationships for Phosphates of mono- or disodium (HS 283522), by shipment volume. Hover a ribbon for details; click a name to open its profile.

The largest relationship is LONGI SOLAR TECHNOLOGY H K LIMIT → LONGI SOLAR TECHNOLOGY U S INC with 1,224 shipments, followed by LONGI SOLAR TECHNOLOGY HK LIMITED → LONGI SOLAR TECHNOLOGY U S INC (1,070) and LONGI H K TRADE LIMITED → LONGI SOLAR TECHNOLOGY U S INC (908).

Top U.S. importers

ImporterShipments
LONGI SOLAR TECHNOLOGY U S INC3,334
BOVIET SOLAR USA LTD1,684
VIETNAM SUNERGY JOINT STOCK COMPANY563
HOUNEN SOLAR INC374
VSUN SOLAR USA INC304
EMD MILLIPORE CORP243
ET SOLAR INC167
BUDENHEIM USA INC165
INVENERGY SOLAR EQUIPMENT MANAGEMEN142
AVANGRID RENEWABLES LLC110
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Top suppliers

SupplierShipments
LONGI SOLAR TECHNOLOGY H K LIMIT1,484
LONGI H K TRADE LIMITED1,320
LONGI SOLAR TECHNOLOGY HK LIMITED1,129
BOVIET SOLAR TECHNOLOGY COMPANY897
BOVIET SOLAR TECHNOLOGY CO LTD887
VIETNAM SUNERGY JOINT STOCK COMPANY866
HOUNEN SOLAR INC CO LTD401
MERCK KGAA243
CHEMISCHE FABRIK BUDENHEIM KG169
VINA SOLAR TECHNOLOGY CO LTD137
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Origin countries

CountryShipments
VIET NAM5,682
CHINA1,869
HONG KONG329
CAMBODIA305
INDIA285
SINGAPORE249
BELGIUM234
TAIWAN189
FRANCE186
N/A178

Ports of unlading

U.S. portShipments
LONG BEACH, CA2,785
NEW YORK/NEWARK AREA, NEWARK, NJ1,766
LOS ANGELES, CA1,651
HOUSTON, TX1,197
SEATTLE, WA564
NORFOLK, VA503
SAVANNAH, GA355
OAKLAND, CA350
TACOMA, WA348
BOSTON, MA267

Harmonized System classification

HS code 283522 — Phosphates of mono- or disodium. 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.

More products under HS 2835

Other six-digit codes in HS 2835: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates, with their U.S. import volume.

Product (HS code)Shipments
Phosphates of potassium (283524)9,329
Sodium triphosphate (Sodium tripolyphosphate) (283531)2,496
Calcium hydrogenorthophosphate ("Dicalcium phosphate") (283525)1,853
Polyphosphates, other (283539)1,384
Phosphates, other (283529)1,126
Other phosphates of calcium (283526)523
Phosphinates (hypophosphites) and phosphonates (phosphites) (283510)407

Frequently asked questions about importing Phosphates of mono- or disodium

Who imports Phosphates of mono- or disodium (HS 283522)?

Based on U.S. Customs bill-of-lading records, the top U.S. importers of Phosphates of mono- or disodium include LONGI SOLAR TECHNOLOGY U S INC, BOVIET SOLAR USA LTD, VIETNAM SUNERGY JOINT STOCK COMPANY, HOUNEN SOLAR INC, and VSUN SOLAR USA INC.

Who is the largest U.S. importer of Phosphates of mono- or disodium?

LONGI SOLAR TECHNOLOGY U S INC is the largest U.S. importer of Phosphates of mono- or disodium (HS 283522), with 3,334 bill-of-lading shipment records.

Who are the top suppliers of Phosphates of mono- or disodium?

Leading suppliers shipping Phosphates of mono- or disodium (HS 283522) to the U.S. include LONGI SOLAR TECHNOLOGY H K LIMIT, LONGI H K TRADE LIMITED, LONGI SOLAR TECHNOLOGY HK LIMITED, BOVIET SOLAR TECHNOLOGY COMPANY, and BOVIET SOLAR TECHNOLOGY CO LTD.

How many U.S. shipments of Phosphates of mono- or disodium are there?

ImportDoor has 10,805 U.S. import shipment records under HS code 283522, spanning Nov 2019 to Aug 2026.

Where is Phosphates of mono- or disodium imported from?

Phosphates of mono- or disodium is imported into the U.S. primarily from VIET NAM, CHINA, and HONG KONG.

Find Phosphates of mono- or disodium importers & suppliers

Get the complete list of U.S. importers and global suppliers for HS 283522, with contact details and container-level shipment records on ImportDoor.

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