A mutual holding company shall have the same powers granted to domestic insurance companies pursuant to chapter 382 relating to insurance holding company systems, and shall be subject to the requirements and provisions of such chapter and shall have all the powers granted to corporations organized pursuant to chapter 351. Neither the mutual holding company nor any stock holding company created pursuant to sections 376.1300 to 376.1322 shall be an insurer or shall have the authority to engage in the business of insurance. A mutual holding company may enter into an affiliation agreement or a merger agreement either at the time of reorganization, or at some later time with the approval of the director, with any mutual life insurance company authorized to do business in this state. Any such merger agreement may authorize participating policyholders of the mutual life insurance company to become members of the mutual holding company. Any such affiliation agreement or merger agreement is subject to the insurance laws of this state relating to such transactions entered into by a domestic mutual life insurance company.