Case C-216/17: Judgment of the Court (Eighth Chamber) of 19 December 2018 (request for a preliminary ruling from the Consiglio di Stato — Italy) — Autorità Garante della Concorrenza e del Mercato — Antitrust, Coopservice Soc. coop. arl v Azienda Socio-Sanitaria Territoriale della Vallecamonica — Sebino (ASST), Azienda Socio-Sanitaria Territoriale del Garda (ASST), Azienda Socio-Sanitaria Territoriale della Valcamonica (ASST) (Reference for a preliminary ruling — Directive 2004/18/EC — Article 1(5) — Article 32(2) — Award of public works contracts, public supply contracts and public service contracts — Framework agreements — Clause extending the framework agreement to other contracting authorities — Principles of transparency and equal treatment of economic operators — No determination of the quantity covered by subsequent public procurement contracts or determination by reference to the usual requirements of the contracting authorities that are not signatories to the framework agreement — Prohibition)