On September 4, 2019, the Department of Commerce (DOC) announced its affirmative preliminary determinations in the antidumping duty (AD) investigations of imports of certain fabricated structural steel (FSS) from China and Mexico, and a negative preliminary determination in the AD investigation of imports of certain fabricated structural steel from Canada.
Preliminary dumping margins are as follows:
| Country | Exporter/Producer | Dumping Rate | Cash Deposit Rate |
| Canada | Canatal Industries, Inc. | 0.00% | n/a |
| Canada | Les Constructions Beauce-Atlas, Inc. | 0.69% | n/a |
| China | Jinhuan Construction Group Co., Ltd. | 57.86% | 47.32% |
| China | Modern Heavy Industries (Taicang) Co., Ltd. | 0.00% | 0.00% |
| China | Wison (Nantong) Heavy Industry Co., Ltd. | 52.09% | 41.55% |
| China | Separate Rate Companies | 55.76% | 45.22% |
| China | China-wide | 141.38% | 130.84% |
| Mexico | Building Systems de Mexico, S.A. de C.V. | 10.58% | n/a |
| Mexico | Corey S.A. de C.V. / Industrias Recal S.A. de C.V. | 0.00% | n/a |
| Mexico | Acero Technologia, S.A. de C.V. | 30.58% | 16.96% |
| Mexico | Construcciones Industriales Tapia S.A. de C.V. | 30.58% | 16.96% |
| Mexico | Estructuras Metalicas la Popular S.A. de C.V./MSCI | 30.58% | 16.96% |
| Mexico | Operadora CICSA, S.A. de C.V. Swecomex - Guadalajara | 30.58% | 16.96% |
| Mexico | All others | 10.58% | 0.00% |
The petitioner is the American Institute of Steel Construction Full Member Subgroup (Chicago, IL). In 2018, imports of FSS from Canada, China, and Mexico were valued at an estimated $722.5 million, $897.5 million, and $622.4 million, respectively.
The products subject to the investigations are currently classified in the Harmonized Tariff Schedule of the United States (HTSUS) under subheadings: 7308.90.3000, 7308.90.6000, and 7308.90.9590.
The products subject to the investigations may also enter under the following HTSUS subheadings: 7216.91.0010, 7216.91.0090, 7216.99.0010, 7216.99.0090, 7222.40.6000, 7228.70.6000, 7301.10.0000, 7301.20.1000, 7301.20.5000, 7308.40.0000, 7308.90.9530, and 9406.90.0030.
The DOC is scheduled to announce its final determinations on or about January 24, 2020. If The DOC makes affirmative final determinations, and the US International Trade Commission (ITC) makes affirmative final determinations that imports of certain fabricated structural steel from Canada, China, and/or Mexico materially injure, or threaten material injury to, the domestic industry, The DOC will issue AD orders. If either The DOC or the ITC issues negative final determinations, no AD orders will be issued. The ITC is scheduled to make its final injury determinations approximately 45 days after The DOC issues its final determinations, if affirmative.