| 2510 | | Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk: | | | | |
| 2835 | | Phosphinates (hypophosphites), phosphonates (phos- phites) and phosphates; polyphosphates, whether or not chemically defined: | | | | |
| 2835.22.00 | 00 | Phosphates: | | | | |
| 2835.25.00 | 00 | Calcium hydrogenorthophosphate ("Dicalcium phosphate") | kg | Free | | 25% |
| 2835.26.00 | 00 | Other phosphates of calcium | kg | Free | | 25% |
| 2835.31.00 | 00 | Polyphosphates: | | | | |
| 2835.31.00 | 00 | Sodium triphosphate (Sodium tripolyphosphate) | kg | 1.4% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 6% |
| 2919 | | Phosphoric esters and their salts, including lacto- phosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives: | | | | |
| 2919.10.00 | 00 | Tris(2,3-dibromopropyl phosphate) | kg | 3.7% | Free (A,AU,BH,CA, CL,E,IL,J,JO, K,MA,MX, P,SG) | 25% |
| 2919.90.15 | 00 | Triphenyl phosphate | kg | Free | | 15.4¢/kg + 57% |
| 3103.10.00 | | Superphosphates | | Free | | Free |
| 3103.10.00 | 10 | Normal and enriched superphosphates, less than 40 percent available phosphorus pentoxide (P2O5) equivalent | t | | | |
| 3103.10.00 | 20 | Concentrated superphosphates, 40 percent or more available phosphorus pentoxide (P2O5) equivalent | t | | | |
| 3105.30.00 | 00 | Diammonium hydrogenorthophosphate (Diammonium phosphate) | t | Free | | Free |
| 3105.40.00 | | Ammonium dihydrogenorthophosphate (Mono- ammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate) | | Free | | Free |
| 3105.40.00 | 10 | Ammonium dihydrogenorthophosphate (Monoammonium phosphate) | t | | | |
| 3105.51.00 | 00 | Containing nitrates and phosphates | t | Free | | Free |
| 3824.81.00 | 00 | Mixtures and preparations containing oxirane (ethylene oxide), polybrominated biphenyls (PBBs), polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or tris(2,3-dibromopropyl) phosphate: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 534
