Offeror : BPB GYPSUM B.V. | Date of submission of the Statement of Intention : 12/07/2004

Reporting Person : - | Type of securities : - | Date of reporting obligation : 10/10/2003

Reporting Person : - | Type of securities : - | Date of reporting obligation : 20/10/2003

Reporting Person : - | Type of securities : - | Date of reporting obligation : 24/09/2004

Reporting Person : - | Type of securities : - | Date of reporting obligation : 24/09/2004

Reporting Person : - | Type of securities : - | Date of reporting obligation : 08/08/2003

Reporting Person : - | Type of securities : - | Date of reporting obligation : 12/07/2004

Reporting Person : - | Type of securities : - | Date of reporting obligation : 28/05/2004

Reporting Person : - | Type of securities : - | Date of reporting obligation : 01/08/2002

Reporting Person : - | Type of securities : - | Date of reporting obligation : 25/05/2004