| 2716.00.00 | 00 | Electrical energy | kWh | Free | | Free |
| 2805.12.00 | 00 | Calcium | kg | 3% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 25% |
| 2809 | | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined: | | | | |
| 2818 | | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: | | | | |
| 2818.10 | | Artificial corundum, whether or not chemically defined: | | | | |
| 2827.20.00 | 00 | Calcium chloride | kg | Free | | Free |
| 2827.59.25 | 00 | Of ammonium, of calcium or of zinc | kg | Free | | 25% |
| 2827.60.10 | 00 | Of calcium or of copper | kg | Free | | 25% |
| 2828 | | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites: | | | | |
| 2828.10.00 | 00 | Commercial calcium hypochlorite and other calcium hypochlorites | kg | 2.4% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2830 | | Sulfides; polysulfides, whether or not chemically defined: | | | | |
| 2834.29.10 | 00 | Of calcium | t | Free | | Free |
| 2835 | | Phosphinates (hypophosphites), phosphonates (phos- phites) and phosphates; polyphosphates, whether or not chemically defined: | | | | |
| 2835.25.00 | 00 | Calcium hydrogenorthophosphate ("Dicalcium phosphate") | kg | Free | | 25% |
| 2835.26.00 | 00 | Other phosphates of calcium | kg | Free | | 25% |
| 2836.50.00 | 00 | Calcium carbonate | kg | Free | | 25% |
| 2837.19.01 | 15 | Calcium cyanide | kg | | | |
| 2841.80.00 | 20 | Of calcium | kg W kg | | | |
| 2842 | | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides: | | | | |
| 2842.10.00 | 00 | Double or complex silicates, including alumino- silicates whether or not chemically defined | kg | 3.7% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,K,MA,MX, P,SG) | 25% |
| 2843 | | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals: | | | | |
| 2844 | | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: | | | | |
| 2845 | | Isotopes other than those of heading 2844; com- pounds, inorganic or organic, of such isotopes, whether or not chemically defined: | | | | |
| 2848.00 | | Phosphides, whether or not chemically defined, excluding ferrophosphorus: | | | | |
| 2849 | | Carbides, whether or not chemically defined: | | | | |
Harmonized Tariff Schedule of the United States inquiry: t
