List of Manufacturers & Suppliers Based on HS Codes in Colombia - Chapter 28

280300 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Carbon (carbon blacks and other forms of carbon not elsewhere specified or included). Carbon (carbon blacks and other forms of carbon not elsewhere specified or included).

281122 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Other inorganic acids and other inorganic oxygen compounds of non-metals. -- Silicon dioxide

281700 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Zinc oxide; zinc peroxide. Zinc oxide; zinc peroxide.

282110 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Iron oxides and hydroxides; earth colours containing 70 % or more by weight of combined iron evaluated as Fe2O3. - Iron oxides and hydroxides

282749 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides. -- Other

283329 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphates; alums; peroxosulphates (persulphates). -- Other

283650 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Calcium carbonate

283699 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. -- Other

283990 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Silicates; commercial alkali metal silicates. - Other

284443 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. -- Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds