Article 4
1. Spain shall adopt all the necessary measures to recover from the company González y Díez S.A.: (a) the aid mentioned in Article 1; (b) an amount of EUR 54057.63 (8994433 pesetas), paid illegally before authorisation by the Commission for the financial year 2001, and constituting an unauthorised excess over the aid authorised pursuant to Article 2 and, where appropriate, any other amount paid illegally under the same circumstances. 2. The recoveries mentioned in indents (a) and (b) of paragraph 1 shall be effected without delay and in accordance with the procedures laid down by national law, provided that they allow immediate, effective implementation of this Decision. The aid to be recovered shall be liable to interest charges payable from the date on which it was placed at the disposal of the recipient to the date of recovery thereof. The interest shall be calculated on the basis of the reference rate used to calculate the grant equivalent in the context of regional aid.