A mutual life insurance company may be organized with, and an existing mutual life insurance company may establish, a temporary capital of not less than one hundred thousand dollars which must be invested in the manner provided for the investment of its other funds. Out of the net surplus of the company, the holders of the temporary capital stock may receive a dividend of not more than eight percent per annum, and the dividend may be cumulative. The capital stock may not be a liability of the company except that it must be retired as soon as, but not before, the surplus of the company remaining after its retirement will equal at least the amount of the temporary capital. At the time for the retirement of the capital stock, the holders must receive from the company the par value thereof and any dividends thereon due and unpaid, and the stock must be surrendered and canceled, and the right to vote thereon ceases.