Major functions of Huai’an Bidding Management Office are setting up relative management methods, regulations and systems of municipal bidding transaction, setting up or auditing targets and plans of municipal bidding transaction; promoting unified entering, cooperating transaction behaviors outside the hall; coordinating and supervising bidding transaction activities, supervising functional units to implement duties, enhance management and evaluation for units and personnel who enter the hall; organizing and developing management software related to bidding transaction, coordinating construction and management of judging experts repository of various subjects, and establishing database; coordinating in handling disputes and dissensions; exploiting effective forms of supervision and management.