+ SEE THE PRODUCTS AND CUSTOMERS OR SUPPLIERS OF Esfel S.A.
| Description | HS CODE |
| Kaolin and other kaolinic clays, including calcined... | 2507 |
| Other clays (not including expanded clays of heading No 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths... | 2508 |
| Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure... | 2519 |
| Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight... | 2528 |
| Felspar; leucite; nepheline and nepheline syenite; fluorspar... | 2529 |
