Judgment of the Court (Tenth Chamber) of 22 October 2020.#Ethniko Kentro Erevnas kai Technologikis Anaptyxis (EKETA) v European Commission.#Appeal – Arbitration clause – Regulation (EC, Euratom) No 1605/2002 – Article 52 – Regulation (EC) No 2321/2002 – Decision No 1513/2002/EC – Grant agreement – Sensation project – Sixth Framework Programme – Eligible costs – Conflict of interests – Burden of proof – Time sheets – Audit report – Probative value – Principle of sound financial management – Principle of proportionality.#Case C-273/19 P.