The 20^th SUTS-IEM Evening Talk Series: Variable Refrigerant Flow (VRF) System & Its Special Applications we held on 17^th February 2021 (Wednesday) at 7.00pm via Microsoft Teams. It was presented by Mr. Poh Kai Sin, Regional Manager and Asia Pacific Technical Director of Qingdao Hisense Hitachi Air-conditioning Marketing Co., Ltd. Mr. Poh covered a brief introduction to special applications of VRF systems which allows engineers to think of out the box, focusing on being innovative with VRF system applications to add value to the building owner. The event received more than 250 participations – the highest number recorded to date for SUTS-IEM Evening Talk Series.