This report aims to provide information on ASEAN energy efficiency development and its associated activities that were conducted under the ASEAN Energy Efficiency and Conservation Sub-Sector Network (EE&C-SSN) from 2010 up to 1st quarter of 2014. The activities that took place during this period consist of: i) Information Sharing, ii) Workshops, iii) Standard & Labeling, iv) Energy Audit, v) Certification, vi) EE Awards, vii) EE Targets, viii) EE Tools, ix) Promotion of High Efficient Technologies, x) Policy Development, xi) Capacity Building/ Trainings/ Conferences, xii) Publications, and xiii) EE as Mitigation Action.The ACE updates this report periodically every 6 months in that hope this report can be a reference for further EE activities and programmes in ASEAN region and supports the development and deployment of energy efficiency.