We are committed to assembling the right mix of talented scientists and clinical development specialists to allow us to succeed in our goal of becoming a premier oncology franchise. That commitment remains the driving force behind our endeavors in the fight against cancer today. Indeed, this strong sense of dedication is not just limited to the laboratory—but exists in every aspect of our work from the boardroom to the clinic. We believe the only way to deliver sustainable value to our shareholders and to cancer patients alike is to focus on building a high-quality organization with a strong corporate value set and high integrity. To ensure our continued sense of responsibility to our shareholders and compliance with securities regulations, we have added additional key pieces of corporate governance to our company policies.

Specifically, we have adopted several policies regarding disclosure and have established a process at the board level to provide continued adherence to both the letter and spirit of SEC and other governing regulations.

At OSI, we are proud to say that we manage our day-to-day affairs as conscientiously as our invaluable research endeavors. As a team of dedicated professionals we continue to strive for excellence.

Oxford, UK	Boulder, CO	Farmingdale, NY

The rapid growth of the Company during the past two years has established OSI as an international biotechnology company with facilities in New York, Colorado and the United Kingdom. In August 2002, we formally opened our newly built, state-of-the-art research facility in Farmingdale, New York. This site will serve as the Company’s discovery research operations center with high-speed lead-seeking technologies, complemented by world-class biology and chemistry follow-up teams both here and in Oxford, U.K. Approximately 50% of our discovery research will be based in Farmingdale and the other 50% will be at the Oxford site. In addition to serving as home base for our U.K. research efforts, our state-of-the-art Oxford facility, comprising over 100,000 sq. ft., is equipped with a pilot manufacturing plant that has the capacity to scale up the production of small molecules for pre-clinical toxicology testing and early clinical trials.

Located in Boulder, Colorado is our world-class development capabilities group. This team is seasoned at every end of the continuum, with capabilities in toxicology, cell biology, cancer pharmacology, pharmacokinetics and regulatory affairs.
We now have a comprehensive array of proven talent and infrastructure that allows us to aggressively pursue new treatment options for patients suffering from cancer.

Copyright © 2003 OSI Pharmaceuticals, Inc., All Rights Reserved.