The history of today’s Omya SA/NV office began in the 1980s. During the 80s, Omya was represented in the Benelux market by Omya Belgium (Brussels) and Omya Boekamp (Gouda, NL), whose co-operation gradually grew stronger. At the same time the Belgian production plant Crayères, Cimenteries et Fours à Chaux (CCC) in Harmignies and, soon after, the production plant Norwegian Talc Holland in Amsterdam were taken over by Omya.

In 1995, the Dutch and the Belgian offices merged into Omya Benelux with its headquarters located in Brussels. In the same year a tank farm was built in Moerdijk, completed sometime later by a PCC plant. At the end of the 1990s Omya Benelux had integrated all commercial and administrative activities of CCC and Norwegian Talc into the Brussels office.

In 2004, Omya's subsidiaries in Belgium merged under the name SA Omya Benelux N.V. The Dutch subsidiaries Omya Beheer B.V. and Norwegian Talc (Holland) B.V. legally merged in 2006 to become Omya Netherlands B.V. In 2012, Omya centralised all administrative functions (customer service, logistics and finance) for the region West Europe in Brussels to support the business for the UK, France, Spain, Portugal and the Benelux countries. Subsequently the name was changed to Omya SA/NV.