UB Unionbancal Corp

UnionBanCal Corporation (NYSE: UB) announced today that it would release first quarter 2007 results after the market close on Thursday, April 19, 2007. UnionBanCal management will host a conference call to discuss these results at 8:30 AM Pacific (11:30 AM Eastern) on April 20, 2007. This call is open to all interested parties. From locations within the United States, the call-in number is 800-230-1951 (612-332-0107 from outside the United States). Please call in 10 minutes prior to the beginning of the conference. A live webcast of the call will be available at http://www.uboc.com. You may access the Investor Relations section of the website via the About Us link from the homepage. The webcast replay will be available on the website beginning at approximately 10:30 AM Pacific (1:30 PM Eastern) on April 20, and will remain on the website for a period of one year. A recorded playback of the conference call will be available by calling 800-475-6701, (320-365-3844 from outside the United States) from approximately 12:00 PM Pacific (3:00 PM Eastern), April 20, until 11:59 PM Pacific, April 27 (2:59 AM Eastern, April 28). The reservation number for this playback is 868035. Based in San Francisco, UnionBanCal Corporation is a bank holding company with assets of $52.6 billion at December 31, 2006. Its primary subsidiary, Union Bank of California, N.A., had 321 banking offices in California, Oregon and Washington, and 2 international offices at December 31, 2006.