On September 12, 2016 the Canada Border Services Agency initiated investigations respecting the alleged injurious dumping of certain fabricated industrial steel components originating in or exported from China, Korea, Spain, the United Arab Emirates, and the United Kingdom, and the alleged injurious subsidizing of fabricated industrial steel components from China. The investigations follow a complaint filed by three Canadian firms (Supermetal Structures Inc., Supreme Group LP, and Waiward Steel LP).
On November 10, 2016 the Canadian International Trade Tribunal determined that there is a reasonable indication that the dumping and subsidizing of these products have caused injury or are threatening to cause injury to the domestic industry.
On January 25, 2017, the Canada Border Services Agency (CBSA) made a preliminary determination of dumping with respect to imports from China, Korea, and Spain. On the same date the CBSA terminated the dumping investigation in respect of imports from the United Arab Emirates and the United Kingdom.
On April 25, 2017, CBSA made final determinations of dumping in respect of China, Korea, and Spain.

On May 25, 2017 the Canadian International Trade Tribunal reached an affirmative final injury to determination. As a result, the antidumping duties will be imposed.

 
The subject goods are usually classified under the following Harmonized System classification numbers:
7216.99.00.10, 7216.99.00.99, 7308.40.00.90, 7308.90.00.92, 8428.31.00.00, 8428.39.00.31, 8428.39.00.90, 7216.99.00.20, 7301.20.00.10, 7308.90.00.60, 7308.90.00.99, 8428.32.00.90, 8428.39.00.34, 7216.99.00.30, 7301.20.00.20, 7308.90.00.81, 7326.90.90.99, 8428.33.00.90, 8428.39.00.39, 7216.99.00.91, 7308.40.00.10, 7308.90.00.89, 8421.99.90.90, 8428.39.00.20, and 8428.39.00.80.

The definitive duty terminated in 24 May 2022.