Subject to the provisions of this Code, a private corporation may invest its funds in any other corporation, business, or for any purpose other than the primary purpose for which it was organized, when approved by a majority of the board of directors or trustees and ratified by the stockholders representing at least two-thirds (2/3) of the outstanding capital stock, or by at least two-thirds (2/3) of the members in the case of nonstock corporations, at a meeting duly called for the purpose. Notice of the proposed investment and the time and place of the meeting shall be addressed to each stockholder or member at the place of residence as shown in the books of the corporation and deposited to the addressee in the post office with postage prepaid, served personally, or sent electronically in accordance with the rules and regulations of the Commission on the use of electronic data message, when allowed by the bylaws or done with the consent of the stockholders: Provided, That any dissenting stockholder shall have appraisal right as provided in this Code: Provided, however, That where the investment by the corporation is reasonably necessary to accomplish its primary purpose as stated in the articles of incorporation, the approval of the stockholders or members shall not be necessary.