| 1. | I have reviewed this report on Form      10-Q for the period ended March      31, 2009      of Chang-On International, Inc. |
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| 2. | Based on my knowledge, this report does not      contain any untrue statement of a material fact or omit to state a      material fact necessary in order to      make the statements made, in light of the circumstances under which such      statements were made, not misleading with respect to the period covered by      this report; |
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| 3. | Based on my knowledge, the financial statements,      and other financial information      included in this report, fairly present in all material respects the      financial condition, results of operations and cash flows of the small      business issuer as of, and for, the periods presented in this      report; |
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| 4. | I am      responsible for establishing and      maintaining disclosure controls and procedures (as defined in Exchange Act      Rules 13a-15(e) and 15d-15(e)) for the small business issuer and      have: |
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| a)   | designed such disclosure controls and procedures,      or caused such disclosure controls and procedures to be designed under our supervision, to ensure that      material information relating to the small business issuer, including its      consolidated subsidiaries, is made known to us by others within those      entities, particularly during the period in which the quarterly or      annual report is being  prepared; |
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| b)   | evaluated the effectiveness of the small business      issuer’s disclosure controls and procedures and presented      in this report our conclusions about the effectiveness of the disclosure      controls and procedures, as of the end of the period covered by this report based on such      evaluation; and |
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| c)   | disclosed in      this report any change in the small business issuer’s internal control      over financial reporting that occurred during the small business issuer’s      most recent fiscal quarter (the small business issuer’s fourth fiscal      quarter in the case of an annual report) that has materially affected, or      is reasonably likely to materially affect the small business issuer’s      internal control over financialreporting; |
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| 5. | I have disclosed, based on our most recent evaluation of internal control      over financial reporting, to the small business issuer’s auditors      and the audit committee of small business issuer’s board of      directors (or persons performing the equivalent      function): |
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| a)   | all significant deficiencies and material weaknesses in the design or      operation of internal control over financial reporting which are      reasonably likely to adversely affect the small business      issuer’s ability to record, process, summarize and report      financial information; and |
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| b)   | any fraud,      whether or not material, that involves management or other employees who      have a significant role in the small business issuer’s control      over financial reporting. |
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|   | /s/      Guomin Li |
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|   | Guomin      Li |
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|   | President,      Chief Executive Officer, Chief Financial Officer, Principal Accounting      Officer |
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