ILLUSTRATIVE REPORT ON STATUS AND PROSPECTS OF LIQUIDATION PERIMETER OF ASTALDI S.P.A. – 30 May 2021 (Italian version) REPORT AT DECEMBER 31st, 2021 OF THE LIQUIDATION PERIMETER OF ASTALDI S.P.A. TO BE AUDITED HALF-YEAR REPORT AT JUNE 30TH, 2021 OF THE LIQUIDATION PERIMETER OF ASTALDI S.P.A. (Italian version) REPORT AT DECEMBER 31, 2020 OF THE LIQUIDATION PERIMETER OF ASTALDI S.P.A. ILLUSTRATIVE REPORT ON STATUS AND PROSPECTS OF LIQUIDATION PERIMETER – 30.April.2021 (Italian version)