The European Chemicals Agency (ECHA) had performed compliance checks on four nanomaterial Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) dossiers (all on silicic acid, aluminum sodium salt) in December 2014, and adopted a Decision requesting that four companies (Evonik Degussa, Rhodia Opérations, JM Huber Finland and Iqesil) submit additional information on: 

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