EXCHANGE NOTICE 19/2007, 18 JANUARY 2007 SHARES ORION CORPORATION: CONVERSION OF A-SHARE INTO B-SHARE A total of 223 000 A shares converted into B shares will be traded together with the B shares of Orion Corporation as of 19 January 2007. Identifiers: Orion Corporation's A-share Trading code: ORNAV ISIN code: FI0009014369 Orderbook id: 35362 Number of shares: 55 331 240 Orion Corporation's B-share Trading code: ORNBV ISIN code: FI0009014377 Orderbook id: 35363 Number of shares: 85 926 588 HELSINKI STOCK EXCHANGE Janne Seppänen Head of Surveillance