WuXi PharmaTech Announces First Quarter 20...(the first quarter 2007reflecting busines...)

Operating Margin. Operating margin was 20.4% in the first quarter 2008, up from 17.3% in the first quarter 2007 primarily due to increased operating leverage.

Net Income. Net income increased by 131.9% to $13.9 million for the first quarter 2008 from $6.0 million for the first quarter 2007. Net profit margin increased to 24.3% in the first quarter 2008 from 17.7% in the first quarter 2007. Non-GAAP net income, as defined below, for the first quarter 2008 grew by 85.3% to $17.3 million, compared to the non-GAAP net income of $9.3 million in the first quarter 2007. Diluted earnings per ADS were $0.19 and non-GAAP diluted earnings per ADS were $0.24 in the first quarter 2008.

2008 Guidance

We maintain our 2008 annual consolidated net revenues guidance in the range from $280 million to $300 million.

Termination of Follow-on Offering; Adoption of 10b5-1 Sales Plans

We are terminating our previously postponed follow-on offering given stock market volatility and current market valuations and our belief that our cash flows will remain healthy and alternative financing options, if required to meet our funding needs, are available.

Since our IPO in August 2007, our officers and directors have been unable to sell shares due to underwriter-related lock-ups (including lock-ups previously entered into in connection with the terminated follow-on offering) and company trading policies. We expect that a number of our executive officers (including our chief executive officer) and other employees will enter into pre-arranged stock trading plans under Rule 10b5-1 of the Exchange Act. As previously disclosed, we believe in many cases these plans will be adopted to ensure the exercise of previously granted options, which
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