Judgment of the General Court (Seventh Chamber) of 13 May 2020.#Talanton AE - Symvouleftiki-Ekpaideftiki Etaireia Dianomon, Parochis Ypiresion Marketing kai Dioikisis Epicheiriseon v European Commission.#Arbitration clause — Seventh framework programme for research, technological development and demonstration activities (2007-2013) — Perform Contract — Eligible costs — Repayment in part of the sums paid — Abuse of contractual rights — Principle of good faith — Legitimate expectations — Burden of proof — Counterclaim.#Case T-195/18.