As the Vice President of Smart City Consortium and its Chair of Smart Living Committee as well as the Director of Hong Kong Cyberport and its Chair of Construction Facilities Committee, our Executive Director Ms. Rosana Wong was invited by Environment Bureau and EMSD to serve as a Moderator for the 1st Plenary Session and Discussion of the APEC Workshop cum Training on Retro-commissioning (RCx). The discussion mainly focused on the policy and roadmap for RCx implementation. Speakers provided valuable insights into advancing Net Zero and its policies and guideline development, low energy certifications, carbon neutrality, etc. They also discussed what driving forces and success factors are needed to further the mainstreaming of RCx in different economies. As we begin a new year, Ms. Wong lastly invited all speakers to express their expectations on RCx implementation to conclude the discussion. Ms. Rosana Wong is well aware of the benefits of RCx and hopes that all participants can be inspired and learn from each others to explore the energy saving potential not only for Hong Kong, China but global economies through RCx implementation.