BERKELEY, Calif.--(BUSINESS WIRE)--July 28, 2006--XOMA Ltd. (Nasdaq:XOMA - News) will issue a news release announcing its second quarter financial results for the quarter ended June 30, 2006, on Wednesday, August 9, 2006, 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 second quarter financial results and providing a general business update. There will be a question and answer session at the end of the conference call.