(1) In addition to other investments expressly authorized by this article or the rules promulgated by the banking board, a trust company may purchase:

(a) Obligations that satisfy the requirements of this article or the rules promulgated by the banking board for loans for state banks;

(b) Obligations of, or fully guaranteed by, the United States, a state of the United States, or the Dominion of Canada;

(c) Obligations of the international bank for reconstruction and redevelopment;

(d) Farm loanbonds issued by any federal land bank organized pursuant to an act of congress approved July 17, 1916, entitled: "An Act to provide capital for agricultural development, to create standard forms of investment based upon farm mortgages, to furnish a market for United States bonds, to create government depositories and financial agents for the United States, and for other purposes." and known as the "Federal Farm Loan Act", and acts amendatory thereto. Such farm loan bonds shall be accepted as security for all public deposits and in all cases where bonds are required by law to be deposited with any department or public official of this state, but this section shall not be so construed as to prohibit such moneys or deposits from being invested in such other securities provided for by law.

(e) General obligations of a territory of the United States, a province of the Dominion of Canada, or a political subdivision or instrumentality of a state or territory of the United States;

(f) Obligations of a corporation chartered by the United States or a state thereof doing business in the United States; or an authority organized under state law, an interstate compact, or by substantially identical legislation adopted by two or more states if any of the foregoing under this paragraph (f) are approved by the banking board for investment;

(g) Revenue obligations issued to provide, enlarge, or improve electric power, gas, water and sewer facilities by any city or town having a population of not less than two thousand people at the time of the investment, located in any state in the United States or territories thereof;

(h) Such other obligations as the general assembly has designated or may from time to time designate as legal investments for public funds;

(i) The capital stock of other corporations, including the stock of a corporation regulated under the federal "Investment Company Act of 1940", as amended, 15 U.S.C. section 80a-1 et seq., and the land or lands and building or buildings in which the business of the trust company is carried on, including its trust company offices, other property in the same building to rent as a source of income, and fixtures, and furniture, safe deposit vaults and boxes, and other personal property such as may be appropriate to carry on its business.

(2) A trust company may, to the extent that banks subject to the laws of the federal government are permitted so to do and to the extent permitted by the rules of the banking board, purchase shares of stock in small business investment companies organized under Public Law No. 85-699, 85th Congress, known as the "Small Business Investment Act of 1958", as amended, but in no event shall any trust company hold shares in small business investment companies in an amount aggregating more than three percent of the trust company's capital and surplus.

(3) No limitation or prohibition otherwise imposed by any provision of state law relating to trust companies shall prevent a trust company from investing not more than ten percent of the trust company's capital as defined in the rules promulgated by the banking board in a bank service corporation as defined in 12 U.S.C. 1861 to 1865, inclusive, and as amended, subject to the rights, powers, and limitations contained therein, and such investment by trust companies is expressly authorized to the extent permitted by the rules of the banking board.

(4) A trust company may acquire or retain an equity investment in a subsidiary of which the trust company is the majority owner, so long as the subsidiary is engaged in activities that are allowed pursuant to this article.

(5) Notwithstanding any restrictions upon investments in obligations, powers, or activities contained in this article, a trust company may invest in any obligation, exercise such powers, and engage in such activities that such trust company could legally acquire, exercise, and engage in were it operating as a national bank at the time such investment was made, such powers were exercised, or such activities were engaged in, to the extent permitted by the rules promulgated by the banking board.

(6) A trust company may invest an amount not exceeding ten percent of its capital as defined in the rules promulgated by the banking board in the stock of any bank or bank holding company that provides services solely to depository institutions and their shareholders, directors, officers, and employees, wherein the ownership of stock of the bank or bank holding company, except for any stock required by law to be owned by directors of the bank or bank holding company, is restricted to banks, trust companies, or bank holding companies. The amount of stock owned by a trust company in any such bank or bank holding company shall not be in excess of five percent of the voting shares of such bank or bank holding company.

(7) (a) A trust company may directly engage in activities that are primarily investments in real estate or may acquire and hold the voting stock of one or more corporations the activities of which are primarily investments in real estate. Such activities may include subdividing and developing real property and building residential housing or commercial improvements on such property and may also include owning, renting, leasing, managing, operating for income, or selling such property. Such property shall be entered on the books at not more than cost or fair market value, whichever is less. The total of all investments made by a trust company pursuant to the authority of this subsection (7) shall not exceed ten percent of its capital.

(b) Upon finding that such restrictions are necessary according to the criteria set forth in section 11-101-102, the banking board may adopt rules that restrict the total investments of a trust company under this subsection (7) to a percentage less than ten percent of the trust company's capital. Nothing in this subsection (7) shall authorize a trust company to contravene a lawful order of the banking board or commissioner with respect to investments by the trust company in real estate or corporations engaging in real estate activities. A trust company that intends to initiate a program of investments under the authority of this subsection (7) shall give sixty days' advance notice to the division of banking of such intent; except that such notice may be waived in the banking board's discretion where such notice is impracticable or unnecessary. The trust company shall also notify the division within ten days after the commencement of the investment program. If similar notices are required by the trust company's federal supervisory agency, the same form of notice may be used for purposes of notice under this subsection (7).