Case T-569/19: Judgment of the General Court of 29 September 2021 — AlzChem Group v Commission (Access to documents — Regulation (EC) No 1049/2001 — Documents relating to a procedure for the recovery of State aid following a decision declaring the aid incompatible with the internal market and ordering its recovery — Refusal to grant access — Exception relating to the protection of the purpose of inspections, investigations and audits — Overriding public interest — Principle of non-discrimination — Obligation to state reasons)