10. Information relating to the affairs of any individual or business shall not be included in the register without the consent of that individual or the person for the time being carrying on that business, if and so long as the information—
(a)is, in relation to him, commercially or personally confidential; and
(b)is not required to be included in the register in pursuance of directions under paragraph 15;
but information is not commercially or personally confidential for the purposes of this paragraph unless it is determined under this Schedule to be so by the competent authority or, on appeal, by the Department.