CELE Professional Services Office Ellen Zhao Centre Manager CELE Professional Services Office Vinna Wang Officer, Teaching and Learning Team CELE Professional Services Office Mavis Chen Manager of Events, Marketing and Operational Support CELE Professional Services Office Geoffrey Gao In-sessional and Pre-sessional Manager CELE Professional Services Office Helen Li Exam and System Officer CELE Professional Services Office Summer Zhang Assistant, Teaching and Learning Team CELE Professional Services Office Susan Xiang Assistant, Teaching and Learning Team CELE Professional Services Office Sophie Zhao Assistant