Euronext: Cumerio Included In Next 150 Index - New Composition Of Next 150 Index

Effective Friday 29 April Umicore (Next 150) will effectuate a demerger whereby a new company Cumerio will be spun-off. Following this demerger, both Umicore and Cumerio will be included in the Next 150 Index effective Friday 29 April 2005.

This adjustment is made in accordance with rule 6.3.5 of the groundrules for the Next 150 Index. Both securities resulting from the demerger, Umicore ‘New’ and Cumerio, qualify for inclusion in the Next 150 index.

Information/Isin codes Information about Umicore:
Isincode: BE0003626372
Number of shares: 25,702,075
Index: Next 150

Information about Cumerio:
Isincode: BE0003819365
Number of shares: 25,702,075
Index: Included in Next 150 effective Friday 29 April 2005

The Euronext 100 Index and Next 150 Index are made up of the 250 securities with the highest market capitalisation traded on the official markets of Euronext. In order to be included in the indices the securities must meet certain liquidity criteria that are specified in the rules of the indices. Euronext Indices B.V. is the compiler of the indices under the supervision of the independent Euronext Indices Steering Committee.