Archroma, a leader in colour and specialty chemicals, who had acquired 49 per cent of the shares of M. Dohmen SA, an international group specialising in the textile dyes and chemical production for carpet, apparel and automotive sector back in 2014, has announced the acquisition of an additional 26 per cent of the shares of M. Dohmen, now owns a controlling 75 per cent participation in the M. Dohmen group, and Archroma and M. Dohmen are now free to operate as partners in serving the textiles market.