The Exchange may require disclosure of such additional or alternative items of information as it considers appropriate in any particular case. Conversely, it may be prepared to permit the omission or modification of items of information to suit the circumstances of a particular case. Consequently, issuers are encouraged, through their Sponsors where so retained, to seek informal and confidential guidance from the Exchange at the earliest opportunity. The issuer shall not publish the listing document until the Exchange has confirmed that it has no further comments thereon.