Joined Cases T-273/06 and T-297/06: Judgment of the Court of First Instance of 1 July 2009 — ISD Polska and Others v Commission (State aid — Scheme for restructuring aid granted by the Republic of Poland to a steel producer — Decision declaring the aid to be in part incompatible with the common market and ordering its recovery — Protocol No 8 on the restructuring of the Polish steel industry — Actions for annulment — Right of action — Period within which proceedings must be brought — Admissibility — Legitimate expectations — Article 14(1) of Regulation (EC) No 659/1999 — Rate of interest to be applied to the repayment of incompatible aid — Duty to cooperate closely with the Member State — Compound interest rate — Articles 9(4) and 11(2) of Regulation (EC) No 794/2004)