General Court 19 November 2025, Case T-1122/23: Judgment of the General Court of 19 November 2025 – Nouryon Functional Chemicals and Others v ECHA (REACH – Substance di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide – Compliance check of registrations – Request for additional toxicity studies – Article 41 of Regulation (EC) No 1907/2006 – Manifest error of assessment – Error of fact – Proportionality – Decision of the Board of Appeal of ECHA – Admissibility of the arguments directed against the decision of ECHA)

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