Judgment of the General Court (Eighth Chamber, Extended Composition) of 30 June 2021.#Global Silicones Council and Others v European Commission.#REACH – Updating of Annex XVII to Regulation (EC) No 1907/2006 concerning restrictions on the manufacture, placing on the market and use of certain dangerous substances, mixtures and articles – Restrictions concerning octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) – Manifest error of assessment – Annex XIII to Regulation No 1907/2006 – Weight-of-evidence determination – Article 68 of Regulation No 1907/2006 – Unacceptable risk – Proportionality – Essential procedural requirements.#Case T-226/18.