Euronext BEL 20® Index - New Divisors

Following the 0.55 € extraordinary dividend payment by Belgacom, the current divisors of the BEL 20®-index will be replaced by the new divisors as published below, from Monday 18 April 2005 onwards:

Isin Code	Name	Old Divisors	New Divisors
BE0389555039	BEL 20 price index:	211,019.68	210,785.11
BE0389557050	BEL 20 return institutional index:	129,584.31	129,077.55
BE0389558066	BEL 20 return private index:	146,728.86	146,298.50