The chairman of the board of directors shall be the person who call the meeting of the board of directors. The chairman or person designated by the chairman shall send a notice summoning the meeting to the directors not less than seven days prior to the date of the meeting. However, in the case that there arises the necessity and urgency to safeguard the rights and interest of the Company, a meeting may be convened by other means and the date of the meeting may be scheduled sooner.