Whenever any company notifies the insurance commissioner that it has fulfilled the requirements already expressed in this chapter, and that its guaranty surplus fund and its special reserve fund taken together equal its capital stock, the commissioner shall make an examination of the company and make a certificate of the result and file the certificate in his or her office. If the commissioner finds that the combined funds equal the capital stock of the company, after this the company may continue, out of any subsequent profits of its business, to add to those funds; provided, that whenever any addition is made to the special reserve fund, an equal sum shall be carried to the guaranty surplus fund.