Article Seven The Board of Trustees shall hereby undertake to form standing and ad hoc committees, from among the members thereof. The respective committees shall be mandated to provide assistance, as necessary, in reviewing and assessing a range of subjects, as appropriate. The said committees may recruit additional members, at their sole discretion, whether from inside or outside the Egyptian Radio and Television Union. Article Eight Sessions of the Board of Trustees shall be convened at least once every month. In addition, the Board of Trustees may hold an extraordinary session, upon the call of the Board Chairperson, or otherwise at the request of half the members of the Board of Trustees. The Board meetings shall not be deemed as legally valid unless the minimum quorum is secured. A meeting without a quorum shall be invalid, and the decisions taken therein shall be invalidated. The quorum shall be achieved by securing the attendance of half the members of the Board of Trustees. The decisions of the Board of Directors shall be made by a majority vote. The Chairperson of the Board of Trustees shall hold the tie-breaking or casting vote, if there shall be a vote tie. Article Nine The Board Chairperson shall oversee the ERTU functions and performance; shall ensure the effective conduct and course of action of action of the ERTU; and shall follow through the execution of the decisions reached by the Board of Trustees. Specifically, the Board of Trustees shall be responsible to: (A) Represent the Egyptian Radio and Television Union in all its relations with the other; before the judiciary system; and at the regional and international conferences and events; (B) Review and present to the Board of Directors the status reports provided by the managing directors regarding the performance and functioning of their respective sectors; (C) Identify and designate the official co-signatory(ies) on behalf of the Egyptian Radio and Television Union in all aspects; (D) Determine and delineate the roles and responsibilities of the ERTU Secretary-General and managing directors, particularly in relation to the execution of the decisions reached by the Board of Trustees, each in their respective area of focus The Chairperson of the Board of Trustees may opt to authorize or delegate one or more of the managing directors to assume specific roles and responsibilities, as appropriate. Article Ten The Board of Trustees shall designate from among its members a deputy chairperson, who shall act in the stead of the Chairperson, in his/ her absence.