1. Member States shall, at a minimum, provide for the following conditions for refusing or withdrawing the authorisation of a third-country branch:

(a) the third-country branch does not meet the requirements for authorisation laid down in Article 48c or in national law;

(b) the head undertaking or its group does not meet the prudential requirements that apply to it under the third-country law or there are reasonable grounds to suspect that it does not meet or that it will breach those requirements within the following 12 months.

For the purposes of the first subparagraph, point (b), third-country branches shall promptly notify their competent authorities where the circumstances referred to in that point occur.

2. Competent authorities may also withdraw the authorisation granted to a third-country branch where any of the following conditions is met:

(a) the third-country branch does not make use of the authorisation within 12 months, expressly renounces the authorisation or has ceased to engage in business for more than six months, unless the Member State concerned has made provision for the authorisation to lapse in such cases;