The office of a director is vacated where —
(a) the director —
(i) dies,
(ii) resigns by writing under his or her hand addressed to the Chairperson or authority by whom the director was appointed,
(iii) is absent from 3 consecutive meetings of the Board without the leave of the Board,
(iv) becomes disqualified under section 14 from being a director, or
(v) is unable to discharge the functions thereof or for misbehaviour, serious neglect, or misconduct in office; or
(b) the director's —
(i) appointment is revoked under section 16, or
(ii) appointment is not renewed at the expiry of the director's term of appointment.