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It looks like some groups (such as Tetrakisazo 35000-35999) are missing and the names in the tables are not consistent with the ones used in the table at the official site (such as “Natural” instead of “Natural dyes” or “Aminoketone and Hydroxyketone” instead of “Aminoketone”) http://colour-index.com/cicn-groups-sub-groups --Yuwash (talk) 11:30, 12 June 2016 (UTC)[reply]

Colour Index Entertainment Group Corporation is a Company.--2600:1702:4B28:F760:219:E3FF:FEE0:BE2B (talk) 06:34, 6 December 2020 (UTC)[reply]

in 1900, The Colour Index Company is still a Company from 1900-1983.

in 1911, Colour Index Entertainment Group Corporation has first appeared in the United States.

in 1922, The Colour Index Group of Companies has announced the Actual Kind.