Exhibit 12.3

I, Dai Houliang, certify that:

1. I have reviewed this annual report on Form 20-F of China Petroleum &
Chemical Corporation;

2. Based on my knowledge, this annual report does not contain any untrue
statement of a material fact or omit to state a material fact necessary 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 annual report;

3. Based on my knowledge, the financial statements, and other financial
information included in this annual report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
company as of, and for, the periods presented in this annual report;

4. The company's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the company and have:

     (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 company, including its
consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this annual report is being
prepared;

     (b) Design such internal control over financial reporting, or caused such
internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the company'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 the report based on such evaluation; and

     (d) Disclosed in this report any change in the company's internal control
over financial reporting that occurred during the period covered by the annual
report that has materially affected, or is reasonably likely to materially
affect, the company's internal control over financial reporting; and

5. The company's other certifying officers and I have disclosed, based on our
most recent evaluation of internal control over financial reporting, to the
company's auditors and the audit committee of company's board of directors (or
persons performing the equivalent function):

     (a) All significant deficiencies and material weakness in the design or
operation of internal control over financial reporting which are reasonably
likely to adversely affect the company's ability to record, process, summarize
and report financial information; and

     (b) Any fraud, whether or not material, that involves management or other
employees who have a significant role in the company's internal control over
financial reporting.


Date: April 6, 2007

                                   By: /s/ Dai Houliang
                                       -----------------------------------------
                                       Dai Houliang
                                       Senior Vice President and Chief Financial
                                       Officer