Judgment of the Court (Tenth Chamber) of 14 July 2022.#SGI Studio Galli Ingegneria Srl v European Commission.#Appeal – Arbitration clause – Seventh Framework Programme for research, technological development and demonstration activities (2007-2013) – Grant agreement – The MARSOL Project – Eligible costs – European Anti-Fraud Office (OLAF) investigation report finding certain expenses incurred to be ineligible – Repayment of sums paid – Right to access OLAF’s file – Right to be heard – Burden of proof – Distortion of the facts – Probative value – Principle of proportionality