(a) In this section -
'51 per cent subsidiary' has the same meaning as it has in section 9(1)(a);
'development land' has the same meaning as it has in section 648;
'group' means a holding company and all companies which are 51 per cent subsidiaries of the holding company;
'holding company' means a company -
(i) that holds shares in other companies, all of which are its 51 per cent subsidiaries, and
(ii) whose business consists wholly or mainly of the holding of shares in the subsidiaries referred to in subparagraph (i);
'qualifying business' means a business other than -
(a) the holding of securities or other assets as investments,
(b) the holding of development land, or
(c) the development or letting of land;
'qualifying group' means a group, the business of each 51 per cent subsidiary (other than a holding company) in which consists wholly or mainly of the carrying on of a qualifying business;
'qualifying person' means an individual who is or has been a director or empl
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