HAYWARD, Calif.--(BUSINESS WIRE)--Impax Laboratories, Inc. (NASDAQ: IPXL) today announced that Allen Chao, Ph.D., has been elected to the Company’s board of directors. Dr. Chao is currently Chairman of Newport Healthcare Advisors, LLC, a healthcare investment management and consulting company. Dr. Chao was elected to fill the vacancy to be left by board member Oh Kim Sun, a director since 1999, who has decided not to stand for re-election at the annual stockholders meeting. Dr. Chao and the six other members of the board will stand for election at the Company’s annual stockholders meeting on May 25, 2010.