Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530)
Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530) has 1,027 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Diammonium hydrogenorthophosphate (Diammonium phosphate) is PRAYON INC, with 534 shipments, followed by VALUDOR PRODUCTS LLC and INNOPHOS INC. The leading supplier is PRAYON SA, with 316 shipments, followed by PRAYON S A and CASHMERE CAPITAL LTD. Goods originate mainly from BELGIUM and RUSSIA, arriving primarily at LOS ANGELES, CA. Import volume has declined 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/310530-diammonium-hydrogenorthophosphate-diammonium-phosphate
See all 1,027 shipments of HS 310530 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.
Open in dashboardShipments by month (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is PRAYON SA → PRAYON INC with 312 shipments, followed by PRAYON S A → PRAYON INC (208) and CASHMERE CAPITAL LTD → VALUDOR PRODUCTS LLC (85).
Top U.S. importers
| Importer | Shipments |
|---|---|
| PRAYON INC | 534 |
| VALUDOR PRODUCTS LLC | 163 |
| INNOPHOS INC | 34 |
| BUDENHEIM USA INC | 27 |
| EUROCHEM NORTH AMERICA CORP | 25 |
| MOSAIC FERTILIZER LLC | 21 |
| CHIME S P A | 18 |
| BRENNTAG BEDFORD | 12 |
| KOPPERS PERFORMANCE CHEMICALS INC | 10 |
| PERIMETER SOLUTIONS LP | 8 |
Top suppliers
| Supplier | Shipments |
|---|---|
| PRAYON SA | 316 |
| PRAYON S A | 229 |
| CASHMERE CAPITAL LTD | 89 |
| VALUDOR PRODUCTS LLC | 55 |
| CHEMISCHE FABRIK BUDENHEIM KG | 25 |
| INNOPHOS FOSFATADOS DE MXICO S DE | 25 |
| MOSAIC GLOBAL SALES LLC | 19 |
| INNOPHOS MEXICANA S DE R L DE C | 13 |
| INNOPHOS FOSFATADOS DE MEXICO S DE | 10 |
| AGROINDUSTRIAS DEL BALSAS SA DE CV | 9 |
Origin countries
| Country | Shipments |
|---|---|
| BELGIUM | 574 |
| RUSSIA | 155 |
| CHINA | 89 |
| MEXICO | 76 |
| SAUDI ARABIA | 30 |
| EGYPT | 13 |
| LITHUANIA | 11 |
| NETHERLANDS ANTILLES | 10 |
| JORDAN | 10 |
| MOROCCO | 10 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 208 |
| SAVANNAH, GA | 206 |
| NORFOLK, VA | 102 |
| NEW ORLEANS, LA | 97 |
| HOUSTON, TX | 75 |
| OAKLAND, CA | 63 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 44 |
| CHARLESTON, SC | 43 |
| MOBILE, AL | 34 |
| BALTIMORE, MD | 33 |
Harmonized System classification
HS code 310530 — Diammonium hydrogenorthophosphate (Diammonium phosphate). 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 3105
Other six-digit codes in HS 3105: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium, with their U.S. import volume.
Frequently asked questions about importing Diammonium hydrogenorthophosphate (Diammonium phosphate)
Who imports Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Diammonium hydrogenorthophosphate (Diammonium phosphate) include PRAYON INC, VALUDOR PRODUCTS LLC, INNOPHOS INC, BUDENHEIM USA INC, and EUROCHEM NORTH AMERICA CORP.
Who is the largest U.S. importer of Diammonium hydrogenorthophosphate (Diammonium phosphate)?
PRAYON INC is the largest U.S. importer of Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530), with 534 bill-of-lading shipment records.
Who are the top suppliers of Diammonium hydrogenorthophosphate (Diammonium phosphate)?
Leading suppliers shipping Diammonium hydrogenorthophosphate (Diammonium phosphate) (HS 310530) to the U.S. include PRAYON SA, PRAYON S A, CASHMERE CAPITAL LTD, VALUDOR PRODUCTS LLC, and CHEMISCHE FABRIK BUDENHEIM KG.
How many U.S. shipments of Diammonium hydrogenorthophosphate (Diammonium phosphate) are there?
ImportDoor has 1,027 U.S. import shipment records under HS code 310530, spanning Jan 2020 to Aug 2026.
Where is Diammonium hydrogenorthophosphate (Diammonium phosphate) imported from?
Diammonium hydrogenorthophosphate (Diammonium phosphate) is imported into the U.S. primarily from BELGIUM, RUSSIA, and CHINA.
Find Diammonium hydrogenorthophosphate (Diammonium phosphate) importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 310530, with contact details and container-level shipment records on ImportDoor.
Start for free