 The company was founded in the spring of 1983, when, with funding from friends and family, colleagues Allen Chao, Ph.D. and David Hsia, Ph.D., began a small drug development enterprise.Just two months later, the founders established an initial product-development and analytical laboratory with six employees (including both founders) in a leased space in Libertyville, Illinois (U.S.).By late fall of the same year, the company moved to Southern California into an initial 2,000-square-foot (190 m2) leased facility in Corona, and the development and manufacturing of generic pharmaceuticals began.