Umicore

Transaction in Own Shares • Sep 28, 2011

Share information 28 September 2011 CP-2011-40-R 08:30 CET

Acquisition of own shares

On the basis of Article 207 of the Royal Decree of 30 January 2001, as amended on 26 April 2009, implementing the Belgian Companies Code, Umicore announces the following share buy-back transactions effected on the regulated market of NYSE Euronext Brussels :

Date of acquisition	Number of shares	Average price (EUR)	Highest price (EUR)	Lowest price (EUR)
19/09/2011	35,000	30.24	31.02	29.79
20/09/2011	35,000	29.92	30.29	29.51
21/09/2011	35,000	29.79	30.32	29.30
22/09/2011	50,000	27.80	29.09	27.41
23/09/2011	40,000	27.08	27.90	26.55

All details related to the acquisition of own shares by Umicore can be found on: http://www.umicore.com/investorrelations/en/shareInformation/buyBack

For more information

Investor Relations:

Mr. Geoffroy RASKIN	+32 2 227 71 47	geoffroy.raskin@umicore.com
Mrs Evelien GOOVAERTS	+32 2 227 78 38	evelien.goovaerts@umicore.com