The Board is responsible for the high-level governance of MAS. The Board Committees exercise broad oversight and approve major changes to policies and strategies relating to the principal functions of MAS. The Managing Director is responsible for the day-to-day operations of MAS and is assisted by various groups and management committees within MAS. The Executive Committee is the key decision-making body at the management level. Chaired by the Managing Director, it is responsible for ensuring that MAS' policies and initiatives are aligned with its overall direction and objectives. The Executive Committee also oversees matters referred to it by other management decision-making fora.