*Includes 91,309,730 Class A ordinary shares and 187,975,990 Class B ordinary shares.

Holders of Class A ordinary shares and Class B ordinary shares have the same rights except for voting and conversion rights. Each Class A ordinary share is entitled to 10 votes on all matters subject to shareholders’ vote, and each Class B ordinary share is entitled to one vote on all matters subject to shareholders’ vote. Each Class A ordinary share is convertible into one Class B ordinary share at any time by the holder thereof. Class B ordinary shares are not convertible into Class A ordinary shares under any circumstances.

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Proceeds

Estimate net proceeds to company from this offering will be approximately US$106.2 million, after deducting estimated underwriting discounts and commissions and estimated offering expenses payable by company. A $1.00 increase (decrease) in the assumed initial public offering price of US$13.00 per ADS would increase (decrease) the net proceeds from this offering by approximately US$8.4 million, assuming that the number of ADSs offered by company remains the same.

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Use of proceeds

• Primary purposes of this offering is to create a public market for company's shares for the benefit of all shareholders

• To retain talented employees by providing them with equity incentives

• To obtain additional capital.

• Company intend to use approximately US$12 million of the net proceeds from this offering to expand its research and development efforts

• For other general corporate purposes, including capital expenditures and funding possible future acquisitions.

If an unforeseen event occurs or business conditions change, Company may use the proceeds of this offering differently than as described. Pending use of the net proceeds, company intend to hold its net proceeds in short-term bank deposits or invest them in interest-bearing government securities.

Company will not receive any of the proceeds from the sale of shares by the selling shareholders.

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The number of ordinary shares to be outstanding after this offering excludes:

• 6,986,620 Class B ordinary shares issuable upon the exercise of options outstanding as of July 11, 2007, at a weighted average exercise price of US$0.26 per share.

• 15,158,380 Class B ordinary shares reserved for future issuances under company's share incentive plan.