7.—(1) An entry permit shall be valid for a single entry into Singapore and shall cease to be valid if the holder of the permit, being out of Singapore on the date of issue thereof, has not entered Singapore within 6 months after that date.
(2) The Controller may extend the period under paragraph (1) by a further period or periods not exceeding in the aggregate 6 months.
(3) A re-entry permit shall be valid for such period not exceeding 12 months from its date of issue, and for such number of re-entries during its period of validity, as may be specified in the permit.
(4) Notwithstanding paragraph (3), the Controller may issue a re-entry permit for any period exceeding one year or extend the validity of any re-entry permit for such period or periods as he may think fit.