Disclosure Notice

Disclosure Notice Stockholm, November 5, 2002 Investor's share of the voting rights and share capital in ABB has changed through the acquisition of 24,258,919 shares. After the purchase, Investor's holding in ABB now amounts to 82,009,799 shares corresponding to 6.8 percent of the voting rights and share capital. On September 30, 2002, Investor's holding in ABB amounted to 4.8 percent of the votes and capital. Earlier in the year, Investor participated in ABB's convertible bond issue in an amount totaling USD 50 m. In a statement, Investor President and CEO Marcus Wallenberg commented that "we see this as an interesting investment and believe in the company's long-term potential." INVESTOR AB For further information: Fredrik Lindgren, Senior Vice President, Corporate Communications: +46 8 614 20 31, +46 70 624 20 31 ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2002/11/05/20021105BIT00060/wkr0001.doc http://www.waymaker.net/bitonline/2002/11/05/20021105BIT00060/wkr0002.pdf