China Unistone Acquisition CORP Watch

from S-4/A 4 pages Material contract

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from 8-K 33 pages Yucheng Technologies Limited September 2006 Corporate Presentation

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from S-4/A 1 page Power of Attorney

from S-4/A 7 pages Employment Agreement

from S-4/A 8 pages Employment Agreement

from S-4/A 8 pages Employment Agreement

from S-4/A 2 pages Key Deliverables Duration of Engagement

from 8-K 3 pages An Amendment Agreement Is Made on June 29, 2006 Among (1) Beijing E-Channels Coordination Technology Co., Ltd. (北京易诚互动科技有限公司), With Limited Liability Established and Existing Pursuant to the Laws of the Prc Whose Registered Office Is at Room 205, Shunpinda Bus Terminal, 8 Chuangxin Road, Beijing Changping Technology Park, Beijing, Prc; (2) Beijing E-Channels Century Technology Co., Ltd. (北京易诚世纪科技发展有限公司), a Company With Limited Liability Established and Existing Pursuant to the Laws of the Prc Whose Registered Office Is at Middle District 4f, De Shi Building, No.9 Shang DI East Road, Beijing, the Prc; (3) Port Wing Development Company Limited, a Company Incorporated Under the Laws of the British Virgin Islands Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; and (4) Individual Shareholders Listed in Appendix A. Whereas the Parties Have Signed an Agreement for Sale and Purchase of Equity Interest of Beijing E-Channels Century Technology Co., Ltd. as of December 20, 2005 (The E-Channels Spa). It Is Agreed as Follows: 1 the Parties Agree That Section 11.1(c) of the E-Channels Spa Shall Be Amended to Read as Follows

from 8-K 3 pages An Amendment Agreement Is Made on June 29, 2006 Among (1) Beijing Xinyuan Tianyu Technologies Co., Ltd. (北京信源天宇科技有限公司), With Limited Liability Established and Existing Pursuant to the Laws of the Prc Whose Registered Office Is at Room 312, Shunpinda Bus Terminal, 8 Chuangxin Road, Beijing Changping Technology Park, Beijing, Prc; (2) Beijing Zhanheng Jiyuan Software Technologies Co., Ltd. (北京展恒纪元软件技术有限公司), With Limited Liability Established and Existing Pursuant to the Laws of the Prc Whose Registered Office Is at Room 305, Shunpinda Bus Terminal, 8 Chuangxin Road, Beijing Changping Technology Park, Beijing, Prc; (3) Beijing Sihitech Co., Ltd. (北京宇信鸿泰科技发展有限公司), a Company With Limited Liability Established and Existing Pursuant to the Laws of the Prc Whose Registered Office Is at 3rd Floor, Tower B, Beijing Financial Trust Building, 5 Anding Road, Chaoyang District, Beijing, 100029, Prc; (4) Ahead Billion Venture Limited, a Company Incorporated Under the Laws of the British Virgin Islands Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; and (5) Individual Shareholders Listed in Appendix A. Whereas the Parties Have Signed an Agreement for Sale and Purchase of Equity Interest of Beijing Sihitech Co., Ltd. as of December 20, 2005 (The Sihitech Spa). It Is Agreed as Follows: 1 the Parties Agree That Section 11.1(c) of the Sihitech Spa Shall Be Amended to Read as Follows

from 8-K 3 pages An Amendment Agreement Is Made on June 29, 2006 Among (1) Sihitech Company Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the British Virgin Islands (Bvi) Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; (2) Mega Capital Group Services Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the Bvi Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; (3) Profit Loyal Consultants Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the Bvi Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; (4) Elite Concord Internation Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the Bvi Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; (5) China Century Holdings Group Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the Bvi Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; (6) Shining Grouth Investment Group Limited, a Company With Limited Liability Established and Existing Pursuant to the Laws of the Bvi Whose Registered Office Is at Trustnet Chambers, P.O. Box 3444, Road Town, Tortola, British Virgin Islands; and (7) China Unistone Acquisition Corp., a Company Incorporated Under the Laws of the State of Delaware of the United States; and (8) Yucheng Technologies Limited, a Wholly Owned Subsidiary of Cuaq and a Company Incorporated Under the Laws of the Bvi Whose Registered Office Is at Room 1708, Dominion Centre 43-59 Queen’s Road East, Wanchai, Hong Kong S.A.R. (9) Chih Cheung (10) James LI

from S-4 15 pages Software Sales Contract

from S-4 15 pages Technology Service Contract

from S-4 10 pages Service Contract