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

280469 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Hydrogen, rare gases and other non-metals. -- Other

280920 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids

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

281129 : 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. -- Other

281511 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. -- Solid

281512 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. -- In aqueous solution (soda lye or liquid soda)

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.

281810 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. - Artificial corundum, whether or not chemically defined

281820 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. - Aluminium oxide, other than artificial corundum

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

282300 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Titanium oxides. Titanium oxides.

282590 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Other

282710 : 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. - Ammonium chloride

282720 : 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. - Calcium chloride

282739 : 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

282890 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites. - Other

283110 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Dithionites and sulphoxylates. - Of sodium

283210 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphites; thiosulphates. - Sodium sulphites

283230 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphites; thiosulphates. - Thiosulphates

283311 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphates; alums; peroxosulphates (persulphates). -- Disodium sulphate

283321 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphates; alums; peroxosulphates (persulphates). -- Of magnesium

283324 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphates; alums; peroxosulphates (persulphates). -- Of nickel

283327 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Sulphates; alums; peroxosulphates (persulphates). -- Of barium

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

283429 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Nitrites; nitrates. -- Other

283529 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. -- Other

283531 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. -- Sodium triphosphate (sodium tripolyphosphate)

283539 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. -- Other

283620 : 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. - Disodium carbonate

283630 : 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. - Sodium hydrogencarbonate (sodium bicarbonate)

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

283919 : 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

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

284290 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Other

284920 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Carbides, whether or not chemically defined. - Of silicon

285000 : Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49. Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49.