With effect from 1 January 2020, a registered corporation under the ECA must, for each relevant business activity under its operational control, conduct an Energy Efficiency Opportunities Assessment (EEOA) for the relevant business activity, and submit an assessment report to NEA before the expiry of the respective assessment period.
You may refer to the circular Requirements under Energy Conservation Act (ECA) to Promote Continual Energy Efficiency (EE) Improvement on requirements on EEOA for registered corporations.