Extension of LOP/LOI validity for EOUs and developer units clarified: up to five years or one-year extension. Amendment to Para 6.34( h ) of HBP 2023 permits extending LOP/LOI validity: if a unit has commenced production, extensions may be granted per Para 6.01(c) for up to five years at a time; the initial two-year validity may be extended by one additional year for valid reasons recorded in writing, except where initial-period restrictions apply (e.g., oil refinery projects).