XOMA Ltd. (NASDAQ: XOMA) will issue a news release announcing its financial results for 2005 on Wednesday, March 8, 2006 after the close of the financial markets. This announcement will be followed by a conference call and live webcast on Thursday, March 9, 2006 at 4:00 p.m. Eastern (1:00 p.m. Pacific) with XOMA management discussing 2005 financial results and providing a general business update. There will be a question and answer session at the end of the conference call.