22. Before the date fixed for the hearing of a case pursuant to regulation 25, the Authority shall serve on any person who has the right to be heard in connection with the case or whom the Authority proposes to hear or is required to consult pursuant to regulation 21 a copy of, or a summary of, any information in the possession of the Authority which has been provided in connection with the case or which the Authority has reason to believe will be referred to at the hearing of the case:
Provided that—
(i)the Authority shall not serve any such information which has been provided by the Secretary of State if the Secretary of State has certified to the Authority that it would not be in the public interest for it to be disclosed;
(ii)before serving such information which has been provided by any other person (not being a person who has provided information in connection with the case but does not wish to be heard) the Authority shall consult that person and shall not serve any information which in its opinion relates to the commercial or financial affairs of the person who has provided it and cannot be disclosed to the prospective recipient without disadvantage to the person who has provided it which, by comparison with the advantage to the public and the prospective recipient of its disclosure to him, is unwarranted.