Advent International is one of the world's largest private equity firms, with $6 billion in cumulative capital raised and offices in 13 countries across North America, Europe, Latin America and Asia Pacific. Since its founding in 1984, Advent has invested in over 500 companies and has helped businesses raise $10 billion through public equity and debt offerings. These include 128 IPOs on major stock exchanges worldwide. Advent is committed to helping management teams build successful businesses by applying its industry expertise, international resources and local market knowledge. For more information, visit www.adventinternational.com.

GS PIA Technology Investing Group is the technology investing arm of the Principal Investment Area of Goldman Sachs (NYSE:GS), a leading global investment banking, securities and investment management firm. Since 1988, Goldman Sachs and its affiliates have invested over $2 billion in more than 250 companies across a broad range of sectors within the information technology, semiconductor and communications industries. For more information, please visit www.gs.com/piatech.

Lux Capital Management is a research-driven investment firm focused on de novo, seed and early stage investments in the physical and life sciences. Lux takes an active role in helping management teams build successful businesses in high growth sectors. Our investment team has built over 20 companies from scratch. Lux's investment strategy ensures its portfolio companies are better connected, have deeper insight, and command industry leadership faster than their competitors. More information is available at www.luxcapital.com.

With offices in Mountain View, California and Superior, Colorado, Mobius Venture Capital is a $2.5 billion U.S.-based private equity venture capital firm managed by an unparalleled team of former CEOs and entrepreneurs, technology pioneers, senior executives from major technology corporations, and leaders from the investment banking community. Mobius Venture Capital specializes primarily in early-stage investments in the areas of: communications systems software and services; infrastructure software and services; professional services; enterprise applications; healthcare informatics; consumer and small business applications; components; and emerging technologies. Mobius Venture Capital combines its technology expertise and broad financial assets with the industry's best entrepreneurs to create a powerhouse portfolio of over 100 of the world's leading high technology companies. For more information on the fund's investment team, technology vision and portfolio companies, please visit www.mobiusvc.com.

Nth Power focuses on high-growth investment opportunities in the trillion-dollar global energy and utility marketplace. Nth Power began investing in 1997 and has over $250 million under management, with investments in energy intelligence, power reliability, distributed generation and related services. Nth Power's industry partners include leading electric and gas service providers and equipment manufacturers from around the world. Nth Power's web site can be found at www.nthpower.com.

Sequoia Capital provides startup venture capital for very smart people who want to turn ideas into companies. As the “Entrepreneurs Behind the Entrepreneurs”, Sequoia Capital's Partners have worked with the innovators behind Apple Computer, Oracle, Cisco Systems, Network Appliance, Yahoo!, nVIDIA, Flextronics and Google. Sequoia Capital China is dedicated to fund high growth companies based in or significantly related to the China market. To learn more about Sequoia Capital China, visit www.sequoiacap.com.