 Apart from collaborating with Government agencies under the Social Development Officers (SDO) Network to provide small interaction activities for single employees in the civil service, SDN also partners selected commercial and community organisations to facilitate larger-scale events for singles.When SDU was first started, membership was free of charge and valid until the member registered his/her marriage, either at the Registry or under the Muslim law.Members paid only for the activities they registered for and even then, the costs were subsidised by the government.