Exemption from preparation of group accounts

Dear Chris,
in my text book there is a list of requirements for Parent’s being exempt from preparing consolidated statements:
-the parent itsel is subsidiary
-parent’s debt or equity ubstruments are not traded in public market
-parent did not file ints financial statements with securities comission…
-ultimate parent produces consolidated statements

Should these all be adhered in order not toprepare consolidation or if only one of several is met then it is enough for exemption ?

Thank you.