Welcome to the CaSi Consortium pages

REACH is based on the principle of one substance, one registration.  For this reason, when a manufacturer and/ or importer pre-registers a substance it becomes a participant in a SIEF (Substance Information Exchange Forum). 

The SIEF includes all companies that pre-registered one and the same substance.  The SIEF facilitates data sharing between Pre-Registrants, and ultimately, where possible, the joint submission of the technical dossier.  The aim is to avoid unnecessary testing, or repetition of tests on vertebrate animals and to ease the financial burden on registrants. 

REACH does not however provide for clear rules on how the information should be exchanged between the SIEF participants.


In anticipation of these tasks, many companies have decided to unite their resources to set up consortia which provide a formal forum to organise all activities related to the preparation of the REACH registration dossier.


The following pages inform you about the CaSi alloys Consortium of which you find here the Consortium Agreement, i.e. the contract between its member companies:



This document is protected by copyright. This implies that it may be copied, downloaded or printed and circulated to your employees, agents, representatives and clients provided that you make no alteration to any of these pages and you do not use any part of the pages in any commercial work or publication in whatever medium without the prior consent of the CASI INSTITUTE.


CaSi has been registered on its own for REACH in 2010

the position paper of the CaSi Institute can be found under Position Papers section