- Filing of certain prospectuses and communications in connection with business combination transactions (425)

Filed by HiSoft Technology International Ltd. pursuant to Rule 425 of the
Securities Act of 1933

Subject Company: VanceInfo Technologies Inc.

Commission File No.: 001-33857

IMPORTANT INFORMATION FOR INVESTORS

This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. The proposed merger involving HiSoft Technology International Ltd. (“HiSoft”) and VanceInfo Technologies Inc. (“VanceInfo”) will be submitted to the respective shareholders of HiSoft and VanceInfo for their consideration. In connection with the proposed transaction, HiSoft will file with the Securities and Exchange Commission (“SEC”) a registration statement on Form F-4 that will include a preliminary joint proxy statement of VanceInfo and HiSoft and will constitute a prospectus of HiSoft. HiSoft and VanceInfo also plan to file other documents with the SEC regarding the proposed transaction. HISOFT AND VANCEINFO URGE INVESTORS AND SECURITY HOLDERS TO READ THE PRELIMINARY JOINT PROXY STATEMENT/PROSPECTUS AND OTHER RELEVANT DOCUMENTS THAT WILL BE FILED WITH THE SEC (INCLUDING THE DEFINITIVE JOINT PROXY STATEMENT/PROSPECTUS) CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION.

Investors and shareholders may obtain free copies of the preliminary joint proxy statement/prospectus and other documents containing important information about HiSoft and VanceInfo (including the definitive joint proxy statement/prospectus), once such documents are filed with the SEC, through the website maintained by the SEC at www.sec.gov.

Cautionary Statement Regarding Forward-Looking Statements

This communication contains “forward-looking statements” within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 that are not limited to historical facts, but reflect VanceInfo’s and HiSoft’s current beliefs, expectations or intentions regarding future events. Words such as “may,” “will,” “could,” “should,” “expect,” “plan,” “project,” “intend,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “pursue,” “target,” “continue,” and similar expressions are intended to identify such forward-looking statements. These forward-looking statements include, without limitation, VanceInfo’s and HiSoft’s expectations with respect to the synergies, costs and other anticipated financial impacts of the proposed transaction; future financial and operating results of the combined company; the combined company’s plans, expectations and intentions with respect to future operations and services; approval of the proposed transaction by shareholders; the satisfaction of the closing conditions to, or timing of the completion of, the proposed transaction; and other factors with respect to HiSoft, VanceInfo or the proposed transaction that are set forth in the “Risk Factors” section and other sections of HiSoft’s and VanceInfo’s Annual Reports on Form 20-F and other SEC filings.

All forward-looking statements involve significant risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements, many of which are generally outside the control of VanceInfo and HiSoft and are difficult to predict. All subsequent written and oral forward-looking statements concerning VanceInfo, HiSoft, the proposed transaction or other matters and attributable to VanceInfo or HiSoft or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements above. Neither VanceInfo nor HiSoft undertakes any obligation to publicly update any of these forward-looking statements to reflect events or circumstances that may arise after the date hereof.

A Merger of Equals to become the #1 IT Outsourcing Services Player in China

Dear Valued HiSoft Staff Member,

I am pleased to inform you that today HiSoft Technology International Limited and VanceInfo Technologies Inc. jointly participated in a China IT Services market landmark event to announce the signing of a definitive “Merger of Equals” agreement. This will create the largest IT Outsourcing services player in China with the scale, depth, diversity and resources to actively compete in the global market place. This Merger puts us squarely on the path to becoming the “Infosys or Cognizant of China” and puts us well ahead of our original schedule toward reaching our goal of becoming a US$1billion company by 2015.

Hisoft will be the surviving entity with a new name and will continue to be listed on NASDAQ. Upon completion of this transaction, I will assume the role of Chief Executive Officer of the merged company, while Mr. Chris Chen (current Chairman and CEO of VanceInfo) will assume the role of Non-Executive Chairman.

VanceInfo is a well-respected player in the industry and brings to the Merger a wealth of seasoned expertise and capabilities. The merged company will immediately give us the economies of scale to tap into operating and cost synergies to support the necessary investments to build the sustained and differentiating capabilities that will help us win in the industries we choose to serve.

Besides yielding many operating and cost synergies, the merged company will reshape the competitive landscape and favorably position us to win by being:

· The largest IT Services player in China by headcount with about 23,000 employees.

· The largest and most diversified pool of overseas consultants/engineers among China-based IT Services players

· The #1 R&D outsourcing service provider in China

· The #1 IT Outsourcing services provider in China

· The largest China-based IT services provider for the banking sector

· The #1 Quality Assurance and Testing Solution and Services vendor in China

The combined platform will be impressive and dynamic with improved geographic reach, business mix and industry diversity. There will be many new capabilities created, new roles needed and expanded career opportunities as part of the new organization. Without a doubt, exciting possibilities await in the days ahead.

As we move forward in the merger, I remind us all to keep in keen focus the needs of our customers and our commitment to always deliver the highest quality service.

In closing, I thank you for your support and contributions that have helped to make Hisoft what it is today and thereby make this Merger of Equals possible.

I thank you and I look forward to an exciting and rewarding journey together in the merged company.

Sincerely,

Tiak Koon Loh

Chief Executive Officer

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平等合并成为中国服务外包企业 NO.1

亲爱的海辉员工：

今天，我非常高兴地向大家宣布，海辉软件（国际）集团和文思创新软件技术有限公司共同签署了最终的 ” 平等合并 ” 协议，这是中国 IT 服务市场具有划时代的里程碑意义的大事！我们将创建中国最大的 IT 服务外包企业，凭借人员、规模、深度和多样性的综合实力积极参与在全球市场的竞争。此次合并使我们更有希望成为中国的 Infosys ，中国的 Cognizant ，也大大提早了我们原定于 2015 年成为 10 亿美元公司的时间进程表。