Section 10-810 - Vacancy on boardA. Unless the articles of incorporation provide otherwise, if a vacancy occurs on a board of directors, including a vacancy resulting from an increase in the number of directors, either:1. The shareholders may fill the vacancy.2. The board of directors may fill the vacancy.3. If the directors remaining in office constitute fewer than a quorum of the board, they may fill the vacancy by the affirmative vote of a majority of all of the directors remaining in office.B. If the vacant office was held by a director elected by a voting group of shareholders, only the holders of shares of that voting group are entitled to vote to fill the vacancy if it is filled by the shareholders.C. A vacancy that will occur at a specific later date by reason of a resignation effective at a later date under section 10-807, subsection B or otherwise may be filled before the vacancy occurs, but the new director may not take office until the vacancy occurs.D. If at any time by reason of death or resignation or other cause a corporation has no directors in office, any officer or any shareholder may call a special meeting of shareholders.