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FTSE Mondo Visione Exchanges Index:

BEL20® Index Adjustment

Date 04/04/2001

In application of the Ground rules and based on the information in its possession, the Market Authority of Euronext Brussels has decided the following:

Dexia:

Following the announced capital increase of the company DEXIA, the Market Authority would like to remind the public of article 5.5.2. of the ground rules for the BEL20® -index.

This article stipulates that in order to ensure stability, the weightings of the constituents will not change in case of capital increases unless it is a result of a public offering with subscription rights and it represents more than 20% of outstanding shares.

Since the capital increase under its current conditions, is not accompanied by any subscription rights and is destined exclusively to the current shareholders of Artesia Banking Corporation, the weight of DEXIA in the BEL20® index shall NOT be adjusted, provided the current form of the capital increase is maintained.

Moreover, based on art. 5.4.10. and following the decision of the company DEXIA to split its shares by 10, the number of DEXIA shares in the BEL20® -index will increase from 561 to 5,610 on June 18, 2001. Art. 5.4.10. stipulates that in the event of a share split, the number of shares of the security in the index basket will be multiplied by the factor used for the split.

Delhaize:

Following the decision of the company DELHAIZE to increase its capital, and by analogy with its decision concerning DEXIA and in application of art. 5.5.2., the weight of the company DELHAIZE in the BEL20® -index will NOT be adjusted provided the current form of the capital increase is maintained.

GBL:

Further to the take-over of the index member GBL by the non-index member Electrafina and following the name change of Electrafina into (new) GBL, the current index member GBL will be replaced by (new) GBL in application of art 5.3.6.c.

Art. 5.3.6.c. stipulates that if a constituent company is taken over by a non-constituent company, the original constituent will be removed and replaced by the highest ranking stock from the reserve list or, if possible, by the acquiring company. Furthermore, in application of art. 5.5.2., the share (new) GBL will be attributed the same weight as the current index member GBL.

Since the take-over is accompanied by a de facto split by 5, the number of shares of (new) GBL will increase from 142 to 710 at a date to be announced by the General Assembly of Shareholders of GBL.