Ultimate parent unit (GGH – global group head, GDC – global decision centre, UCI – ultimate controlling institutional unit) is a parent unit which is not controlled either directly or indirectly by any other unit. Ultimate parent refers to the unit being at the top of the control chain.

• Council Regulation (EEC) No 696/93 of 15 March 1993 on the statistical units for the observation and analysis of the production system in the Community
  Place of publication: Dz. Urz. UE L 76 z 30.3.1993, str. 1—11