(2) in addition to the right to own stock in other corporations given insurers in § 1305(2) of this title, it may also invest in not less than a majority of the voting stock of a business corporation formed under the laws of this or another state or a foreign nation, the activities of which corporation are primarily supplementary and complementary to the convenient operation of the insurer's business or to the administration of its affairs, and corporations engaged or organized to engage in the marketing of financial, insurance or service products, the products to be subject to the approval of the Insurance Commissioner. As used in this title, "subsidiaries" shall include, in addition to those such corporations where the insurer owns a majority of their stock, those corporations formed or acquired by an insurer where it owns less than a majority of such corporation's voting stock due to the laws of a foreign national which require the insurer to own less than a majority of the voting stock of such subsidiary insurance corporation if it is to operate in that nation.