**EXHIBIT12.1**

I, D. Bryan Jones, certify that:

1.                 I have reviewed this annualreport on Form 20-F of Novamerican Steel Inc.;

2.                 Based on my knowledge, thisreport does not contain any untrue statement of a material fact or omit tostate a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading withrespect to the period covered by this report;

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

4.                 The company’s othercertifying officer(s) and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) and internal control over financial reporting (as defined inExchange Act Rules 13a-15(f) and 15d-15(f)) for thecompany and have:

(a)          Designed such disclosure controls and procedures, or causedsuch disclosure controls and procedures to be designed under our supervision,to ensure that material information relating to the company, including itsconsolidated subsidiaries, is made known to us by others within those entities,particularly during the period in which this report is being prepared;

(b)         Designed such internal control over financial reporting, orcaused such internal control over financial reporting to be designed under oursupervision, to provide reasonable assurance regarding the reliability offinancial reporting and the preparation of financial statements for externalpurposes in accordance with generally accepted accounting principles;

(c)          Evaluated the effectiveness of the company’s disclosurecontrols and procedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures, as of the end of theperiod covered by this report based on such evaluation; and

(d)         Disclosed in this report any change in the company’sinternal control over financial reporting that occurred during the periodcovered by the annual report that has materially affected, or is reasonablylikely to materially affect, the company’s internal control over financialreporting; and

5.                 The company’s othercertifying officer(s) and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the company’sauditors and the audit committee of the company’s board of directors (orpersons performing the equivalent functions):

(a)          All significant deficiencies and material weaknesses in thedesign or operation of internal control over financial reporting which arereasonably 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 involvesmanagement or other employees who have a significant role in the company’sinternal control over financial reporting.

Date:  February 22, 2007

|          | /s/* D. Bryan Jones* |
|----------|---------------------------|
| * * | Chief  Executive Officer  |

 

----