BERKELEY, Calif., March 2, 2007 (PRIME NEWSWIRE) (PRIMEZONE) -- XOMA Ltd. (Nasdaq:XOMA) will issue a news release announcing its fourth quarter and full-year 2006 financial results for the periods ended December 31, 2006, on Thursday, March 8, 2007, at 4:00 p.m. Eastern (1:00 p.m. Pacific). The news release will be followed by a conference call and live webcast at 5:00 p.m. Eastern (2:00 p.m. Pacific) with XOMA management discussing fourth quarter and full-year financial results and providing a general business update. There will be a question and answer session at the end of the conference call.