QUANTUMONLINE.COM SECURITY DESCRIPTION:  UBS AG, Bullish Underlying Linked Security (BULS) due 4/28/2003, issued at $1000 principal amount per security and linked to value of a basket of 10 equally weighted tech stocks (see list in prospectus). The holder will receive no payments prior to maturity. At the maturity date of 4/28/2003 the holder will receive a cash payment reflecting the returns of the 10 individual stocks which may be positive or negative. The maturity payment is subject to a maximum gain of 102% for each individual stock and offers protection for up to a 25% decline in each individual stock. The Notes are medium-term notes issued by UBS AG. See the IPO prospectus for further information on the maturity payment and the Principal Protected Notes by clicking on the ‘Link to IPO Prospectus’ provided below.

Company's Online Information Links

HOME PAGE:     http://www.ubs.com/ (This parent company URL is for reference only and does not have specific information on the security.)

Company's Online SEC EDGAR Filings

Company's SEC EDGAR Filings

Go to SEC Filings

Company's Email Address Links

Email Address	investor-relations@ubs.com
Email Contact Form on Website	Go to Email Form

Foreign Address and Phone Numbers

Address:   Bahnhofstrasse 45, Zurich, Switzerland
Main Phone Number	+41-1-234-41-00
Fax Number	+41-1-234-34-15
Inv Rel Phone Number	+41-1-234-4360

Address and Phone Numbers

U.S. Representative	UBS New York
Address:   1285 Avenue of the Americas, New York, NY 10019
Main Phone Number	212-821-3000
Fax Number	212-713-1381