+ CHECK THE PRODUCTS AND CUSTOMERS OR SUPPLIERS OF ORTITLAN LIMITADA
| Description | HS CODE |
| Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape... | 2506 |
| Other clays (not including expanded clays of heading No 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths... | 2508 |
| Siliceous fossil meals/other siliceous earths, d<=1... | 2512 |
| Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers... | 2523 |
| Ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or metal compounds... | 2620 |
| Hydrogen, rare gases and other non-metals... | 2804 |
| Sulfuric acid, oleum... | 2807 |
| Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined... | 2809 |
| Sulphides of non-metals; commercial phosphorus trisulphide... | 2813 |
| Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides... | 2827 |
