The US Department of Commerce (DOC) announced Friday the final results of its administrative review of the antidumping order against light-walled rectangular pipe and tube from Mexico.

The review covered nine Mexican producers exporters during the period from January 30, 2008 through July 31, 2009.

The DOC calculated the following final weighted-average dumping margins (with the previous dumping duty deposit rates in parentheses):

(1)  Maquilacero S.A. de C.V.  -  3.11%  (2.40%)
(2)  Regiomontana de Perfiles y Tubos S.A. de C.V.  -  9.15%  (3.76%)
(3)  Galvak S.A. de C.V.  -  6.13%  (3.76%)
(4)  Hylsa S.A. de C.V. (now Ternium Mexico S.A. de C.V.) -  6.13%  (3.76%)
(5)  Industrias Monterrey S.A. de C.V.  -  6.13%  (11.50%)
(6)  Nacional de Acero S.A. de C.V.  -  6.13%  (11.50%)
(7)  Perfiles y Herrajes LM S.A. de C.V.  -  6.13%  (3.76%)
(8)  Productos Laminados de Monterrey S.A. de C.V.  -  6.13%  (5.12%)
(9)  Ternium Mexico S.A. de C.V. (formerly Hylsa S.A. de C.V.)  -  6.13%  (3.76%)

Maquilacero and Regiomontana were the mandatory respondents in this review, and the DOC calculated company-specific dumping margins for them.  The dumping margin for the remaining companies is a simple average of the margins for the mandatory respondents.

Accordingly, effective February 18, 2011, the dumping duty deposit rates became the final margins listed above.  In addition, the DOC will send instructions to US Customs and Border Protection to liquidate entries that were made during the period of review.