1. In relation to Article 2(2), Member States shall require the method of supplementary supervision to be applied in accordance with Annex II. The calculation shall include all related undertakings of the insurance holding company, mixed financial holding company, non-member-country insurance undertaking or non-member-country reinsurance undertaking.
2. If, on the basis of the calculation referred to in paragraph 1, the competent authorities conclude that the solvency of a subsidiary insurance or reinsurance undertaking of the insurance holding company, mixed financial holding company, non-member-country insurance undertaking or non-member-country reinsurance undertaking is, or may be, jeopardised, they shall take appropriate measures at the level of that insurance or reinsurance undertaking.