The consolidated risk margin of technical provisions on the basis of the consolidated data shall be equal to the sum of the following:
((a))(a) the risk margin of the participating insurance or reinsurance undertaking;
((b))(b) the proportional share, as referred to in Article 221(1)(a) of Directive 2009/138/EC, of the risk margin of the related insurance or reinsurance undertakings and third-country insurance or reinsurance undertakings referred to in Article 335(1)(a) and (c) of this Regulation.