Judgment of the Court (Third Chamber) of 18 December 2025.#OSA, z.s., anciennement OSA – Ochranný svaz autorský pro práva k dílům hudebním, z.s. v Úřad pro ochranu hospodářské soutěže.#Reference for a preliminary ruling – Competition – Article 102 TFEU – Abuse of dominant position – Collective management organisation handling copyright – Rates for royalties for the provision of a licence to make copyrighted works available – Hotel establishments – Calculation method – Failure to take into account the rate of occupancy of rooms – Unfair prices.#Case C-161/24.