| 2818 |  | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: |  |  |  |  | 
| 2818.10 |  | Artificial corundum, whether or not chemically defined: |  |  |  |  | 
| 2830 |  | Sulfides; polysulfides, whether or not chemically defined: |  |  |  |  | 
| 2835 |  | Phosphinates (hypophosphites), phosphonates (phos- phites) and phosphates; polyphosphates, whether or not chemically defined: |  |  |  |  | 
| 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: |  |  |  |  | 
| 2850.00 |  | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: |  |  |  |  | 
| 2909 |  | Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives: |  |  |  |  | 
| 2914.69.10 | 00 | Photographic chemicals | kg | 5.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2921.51.20 | 00 | Photographic chemicals | kg | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2922.29.29 | 00 | Photographic chemicals | kg | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, L,MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2922.41.00 | 10 | Meeting requirements of Food Chemical Codex, Codex Alimentarius or United States Pharmacopeia | kg |  |  |  | 
| 2923 |  | Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined: |  |  |  |  | 
| 2927.00.25 | 00 | Photographic chemicals | kg | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2933.19.30 |  | Photographic chemicals |  | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2933.99.24 | 00 | Photographic chemicals | kg | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2934 |  | Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: |  |  |  |  | 
| 2934.99.20 | 00 | Photographic chemicals | kg | 6.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¡é/kg +  50% | 
| 2940..00 |  | Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers, sugar acetals and sugar esters, and their salts, other than products of heading 2937, 2938 or 2939: |  |  |  |  | 
| 3006.60.00 | 00 | Chemical contraceptive preparations based on hormones, on other products of heading 2937 or on spermicides | kg | Free |  | 25% |