9CB.—Where—

(a) a branch of a credit institution which is part of a third-country group and has its head office in a third country is supervised by a competent authority in an EEA member state (in this section referred to as “a third-country group branch competent authority”),

(b) an institution in the third-country group is supervised by a competent authority in another EEA member state (in this section referred to as “a third-country group credit institution competent authority”), and

(c) the Bank is either a third country group branch competent authority or a third-country group credit institution competent authority,

the Bank shall cooperate closely with all third country branch competent authorities and third-country group credit institution competent authorities—

(i) to ensure that all activities of that third-country group in the European Union are subject to comprehensive supervision,

(ii) to prevent the requirements applicable to third-country groups pursuant to the Capital Requirements Directive and the Capital Requirements Regulation from being circumvented, and

(iii) to prevent any detrimental impact on the financial stability of the European Union.]