Organoclays REACH Consortium

The manufacturers of Organoclays have joined efforts for their REACH compliance activities and launched, in February 2009, the Organoclays REACH consortium.

Consortium description

To prepare for REACH compliance and classification & labelling activities, the Secretariat of the Organoclays consortium is managed by Linmark Consulting GmbH.

Updated: 14th April 2017

Substances covered

The substances covered (Organoclays) are naturally occurring clay minerals (phylosilicates) that are surface treated specifically to change the hydrophilic surface into a hydrophobic surface without changing the structure of the clay mineral. As such, the surface-treated Organoclays are exempt from registration, as explained in the ECHA Frequently Asked Questions first published in June and November 2008 (Question 6.3.8, ID 0038). This use of the surface treatment substance will be covered by the registration dossier of the surface treatments substances themselves. The mineral substrates used are exempted from registration under Article 2.7(b) and Annex V.7 of REACH.

As a guide, a list of representative substances can be seen here. This list is not exhaustive and is subject to change.


The Organoclays REACH Consortium is open to manufacturers/ importers/ only representatives as defined in the REACH Regulation of the substance on its own, in preparations or in articles and that are subject to the regulatory requirements of the REACH Regulation, or Affiliates thereof.

Membership is open to any applicant fulfilling the membership criteria. The Organoclays consortium is open to any European and non-European companies manufacturing and/or importing Organoclays, which are similar to one or several of the substances covered. Downstream users and other data holders are invited to play an active role in the work of the consortium.


The Organoclays REACH consortium structure consists of a Steering Committee and the Consortium Secretariat managed by Linmark Consulting GmbH.


For any enquiries, the Secretariat can be contacted at

Useful links

European Bentonites Association (EUBA)

International Minerals Association (IMA) REACH Hub