Dear Liz,
Could you give us some additional information for the ΑΣΕ (it could be "Ανωτάτη Συμβουλευτική Επιτροπή", but without context, I am not sure).
Ρ/Σ could be "ρευστοποίησμα στοιχεία" in the given context (however, again I am not sure, I've never seen this abbreviation in any finanial context).
And, finally, KY could be "Κεντρική Υπηρεσία", but again I am not sure without additional information.
Perhaps, if you gave the sentences where these terms are included we could be of more assistance.
Have a nice day!!