(1) Where regulated market admission rules require the publication of a prospectus, supplementary prospectus or other document, the FCA may, by notice in writing to the issuer, offeror or person requesting the admission of transferable securities to trading on a regulated market, require -
(a) the inclusion in the prospectus, supplementary prospectus or other document of such supplementary information necessary for investor protection as the FCA may specify;
(b) a person controlling, or controlled by, the issuer, offeror or person requesting admission to trading to provide specified information or documents;
(c) an auditor, reporting accountant or manager appointed by the issuer, offeror or person requesting admission to trading to provide specified information or documents;
(d) a financial intermediary commissioned to assist in requesting the admission to trading on a regulated market of transferable securities to which the prospectus, supplementary prospectus or other document relate
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