1. Competent authorities supervising third-country branches and subsidiary institutions of the same third-country group shall cooperate closely and share information with each other. The competent authorities shall have written coordination and cooperation arrangements in place in accordance with Article 115.
2. For the purposes of paragraph 1 of this Article, class 1 third-country branches shall be subject to the comprehensive supervision of a college of supervisors in accordance with Article 116. For those purposes the following requirements shall apply:
(a) where a college of supervisors has been established in relation to the subsidiary institutions of a third-country group, the class 1 third-country branches of the same group shall be included within the scope of that college of supervisors;
(b) where the third-country group has class 1 third-country branches in more than one Member State but no subsidiary institutions in the Union subject to Article 116, a college of supervisors
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