Electronic Communications Act, 2008 ACT 775 (b) issue or allot any shares or cause, permit or acquiesce in any other re-organisation of its share capital that results in (i) a person acquiring a significant interest in the holder, or (ii) a person who already has 'a significant interest in the holder, increasing or decreasing the size of that interest. (4) The written approval of the Authority is not required where a sale, transfer, charge or other disposition is the result of an internal re-organisation of a body corporate and does not constitute ultimate transfer of control of a holder but the holder shall, as soon as is reasonably practicable, notify the Authority of the nature and extent of the sale, transfer, charge or other disposition. Conditions of frequency authorisations 11. A frequency authorisation shall contain conditions that relate to _I (a) the expiration of the frequency authorisation and the time required for an application for renewal, (b) the duration of the authorisation, (c) the circumstances under which the frequency authorisation may be amended for force majeure, national security, changes in national legislation and implementation of international obligations and the public interest, (d) the use of the authorised frequency band, (e) the type of emission, power and other technical requirements for the radio-communication service, and (f) other matters that the Authority may specify for frequency authorisation. ' Authorisation to operate in territorial waters or airspace 12. Despite section 10 (1), a ship or aircraft operating in the territorial waters or airspace of Ghana, which is not registered in the country is not required to have authorisation from the Authority for a radio-communication service if the service is operated under a valid authority or frequency authorisation issued in another country in accordance with international agreements relating to radio-communication as regards ships or aircrafts. Suspension and revocation of licences and frequency authorisations 13. (1) The Authority may suspend or revoke a licence or a frequency authorisation where (a) the licence or the authorisation holder has failed to comply materially with any of the provisions of this Act, 17