Case T-745/17: Judgment of the General Court of 9 September 2020 — Kerkosand v Commission (State aid — Aid for an investment project in western Slovakia — Regional investment aid — Rejection of a complaint — Decision not to raise any objections — Conditions for exemption — Article 14 of Regulation (EU) No 651/2014 — Scope of the Commission’s supervisory power — Guidelines on regional State aid for 2014-2020 — Concept of SME — Article 3(2) and (3) of Annex I to Regulation No 651/2014 — Data used for the staff headcount and the financial amounts and reference period — Article 4 of Annex I to Regulation No 651/2014 — Doubts as to the compatibility of the aid with the internal market — Article 4(4) of Regulation (EU) 2015/1589 — Serious difficulties)