Sch 1A para 8
(1) V holds an interest in company W if— (a) V holds shares in company W, directly or indirectly, (b) V holds, directly or indirectly, voting rights in company W, (c) V holds, directly or indirectly, the right to appoint or remove any member of the board of directors of company W, (d) V has the right to exercise, or actually exercises, significant influence or control over company W, or (e) sub-paragraph (2) is satisfied. (2) This sub-paragraph is satisfied where— (a) the trustees of a trust or the members of a firm that, under the law by which it is governed, is not a legal person hold an interest in company W in a way mentioned in sub-paragraph (1)(a) to (d), and (b) V has the right to exercise, or actually exercises, significant influence or control over the activities of that trust or firm.