WRITTEN INVESTMENT PLAN.

(a) Each insurance company's board of directors or, if the company does not have a board of directors, the corresponding authority designated by the company's charter, bylaws, or plan of operation, shall adopt a written investment plan consistent with this subchapter.

(b) The investment plan must:

(1) specify the diversification of the insurance company's investments, so as to reduce the risk of large losses, by:

(A) broad categories, such as bonds and real property loans;

(B) kinds, such as government obligations, obligations of business entities, mortgage-backed securities, and real property loans on office, retail, industrial, or residential properties;

(C) quality;

(D) maturity;

(E) industry; and

(F) geographical areas, as to both domestic and foreign investments;

(2) balance safety of principal with yield and growth;

(3) seek a reasonable relationship of assets and liabilities as to term and nature; and

(4) be appropriate considering the capital and surplus and the business conducted by the company.

(c) At least annually, the board of directors or corresponding authority shall review the adequacy of the investment plan and the implementation of the plan.

(d) An insurance company shall maintain the company's investment plan in the company's principal office and provide the plan to the commissioner or the commissioner's designee on request. The commissioner or the commissioner's designee shall maintain the plan as a privileged and confidential document. The plan is not subject to public disclosure.