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| | CERTIFICATIONS | EXHIBIT 31.2
| | -------------- | ------------

I, Bryan A. Coates, certify that:

1. I have reviewed this annual report on Form 40-F of Cambior
Inc. (the "Company");

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 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;

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 Company as of, and for, the periods presented in this
report;

4. The Company's other certifying officer 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)) 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
>   report is being prepared;
>   (b) evaluated the effectiveness of the
>   Company's disclosure controls and procedures and presented in this annual
>   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
>   (c) 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 officer 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 the
Company's board of directors (or persons performing the equivalent functions):

> (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
>   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 controls over financial reporting.



|Date: May 17, 2004 |                                                        
|------------------ | -------------------------------------------------------
|                   |                                                        
|                   | /s/ Bryan A. Coates                                    
|                   | Bryan A. Coates                                        
|                   | Vice President,
    Finance and Chief Financial Officer
|                   | Cambior Inc.                                           

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