(1) This section makes provision about groups for the purposes of this Part.
(2) An undertaking is part of a group if one or more bodies corporate which are comprised in the undertaking are members of the same group as one or more other bodies corporate.
(3) For the purposes of this Part, two bodies corporate are members of the same group if -
(a) one is the subsidiary of the other, or
(b) both are subsidiaries of the same body corporate.