MSW - Mission West Properties Inc.

Mission West Properties, Inc. is a self-managed, self-administered and integrated Real Estate Investment Trust (REIT). The Company acquires, markets, leases, and manages research and development (R&D) properties, primarily located in the Silicon Valley portion of the San Francisco Bay Area. As of December 31, 2009, it owned and managed 111 properties totaling approximately 8 million rentable square feet of R&D properties through four limited partnerships (operating partnerships), for which it is the sole general partner. R&D property is designed for research and development and office uses and, in some cases, includes space for light manufacturing operations with loading docks.