2012 Manufacture of dyes and pigments

20.12.1 Oxides, peroxides and hydroxides
20.12.11 Zinc oxide and peroxide; titanium oxides
20.12.12 Chromium, manganese, lead and copper oxides and hydroxides
20.12.19 Other metal oxides, peroxides and hydroxides
20.12.2 Tanning or dyeing extracts; tannins and their derivatives; colouring matter n.e.c.
20.12.21 Synthetic organic colouring matter and preparations based thereon; synthetic organic products of a kind used as fluorescent brightening agents or as luminophores; colour lakes and preparations based thereon
20.12.22 Tanning extracts of vegetable origin; tannins and their salts, ethers, esters and other derivatives; colouring matter of vegetable or animal origin
This subcategory excludes:
- non-chemically defined compounds of mercury, see 20.13.52
20.12.23 Synthetic organic tanning substances; inorganic tanning substances; tanning preparations; enzymatic preparations for pre-tanning
20.12.24 Colouring matter n.e.c.; inorganic products of a kind used as luminophores
20.12.9 Sub-contracted operations as part of manufacturing of dyes and pigments
20.12.99 Sub-contracted operations as part of manufacturing of dyes and pigments