A new applicant shall procure that every controlling shareholder undertakes to the new applicant and the Exchange to comply with the following requirements:—

(1) in the event that the controlling shareholder pledges or charges any direct or indirect interest in relevant securities under rule 13.18(1) or pursuant to any right or waiver granted by the Exchange pursuant to rule 13.18(4), at any time during the relevant periods specified in rule 13.16A, he must inform the issuer immediately thereafter, disclosing the details specified in rule 17.43(1) to (4); and
(2) having pledged or charged any interest in securities under sub-paragraph (1) above, he must inform the issuer immediately in the event that he becomes aware that the pledgee or chargee has disposed of or intends to dispose of such interest and of the number of securities affected.