Commission Decision of 5 July 2005 on State aid C 20/04 (ex NN 25/04) in favour of Huta Częstochowa SA (notified under document number C(2005) 1962) (Only the Polish version is authentic) (Text with EEA relevance) (2006/937/EC)

1.3.Please explain in detail how the interest to be paid on the amount of aid to be recovered will be calculated.