| 2826 | | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts: | | | | |
| 2826.30.00 | 00 | Sodium hexafluoroaluminate (Synthetic cryolite) | t | Free | | Free |
| 2841.90.40 | 00 | Aluminates | kg | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, K,MA,MX,P,SG) | 25% |
| 6902.20 | | Containing by weight more than 50 percent of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products: | | | | |
| 6902.20.10 | 10 | Alumina | thousand t | | | |
| 6902.20.50 | 10 | Alumina | t | | | |
| 6903.20.00 | 00 | Containing by weight more than 50 percent of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2) | kg | Free | | 30% |
| 6914.10.40 | 00 | Ceramic ferrules of porcelain or china, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia | X | Free | | 60% |
| 6914.90.41 | 00 | Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia | X | Free | | 45% |
Harmonized Tariff Schedule of the United States inquiry: 534
