Mexico is investigating Japanese steel plates for antidumping practices
Mexico has launched an antidumping investigation into imports of steel plates originating from Japan, according to a resolution published this Wednesday in the Official Gazette of the Federation (DOF).

Mexico has opened an administrative anti-dumping investigation into imports of steel plates in sheets originating in Japan following an application submitted by Grupo Acerero to the Economy Ministry. The resolution formally launching the process was published in the Official Gazette of the Federation (DOF).

The investigation will determine whether steel plates from Japan entered the Mexican market under conditions of price discrimination—a practice considered unfair in international trade when a product is exported at a price below its value in the country of origin and this may harm domestic producers.

According to the resolution, the application was filed by Grupo Acerero, which cited possible unfair international trade practices linked to imports of steel plates in sheets originating in Japan.

The Economy Ministry accepted the application and formally initiated the investigation to gather information on whether there is a difference between the export prices and the normal value of the imported products, and subsequently determine whether this situation caused or threatened to cause injury to the domestic industry.

What periods will Mexico examine?

The proceedings designate 2025 as the period of investigation. To assess whether the imports had negative effects on Mexican producers, the authorities set an injury analysis period running from January 2023 to December 2025.

During the process, the Economy Ministry will examine information on prices, import volumes and market conditions, along with other factors that could establish whether there is a link between the imports under investigation and possible harm to domestic production.

The investigation will cover imports of steel plates in sheets originating in Japan, regardless of the country from which they were shipped or exported, according to the resolution published in the DOF.

Previous investigations into steel

Mexico's steel industry has previously been involved in anti-dumping proceedings concerning steel plates from Japan. There have also been earlier investigations covering products originating in Japan and Italy, involving producers, importers and exporters in the sector.

These precedents show that anti-dumping investigations involving steel products can be complex because of the products' technical characteristics, differences between steel types, and production and marketing conditions in different markets.

In an earlier proceeding, for example, Japanese companies including JFE Steel, Kobe Steel and Nippon Steel participated alongside several Mexican importers. The parties also discussed specific characteristics of the plates, including their dimensions, thicknesses and manufacturing standards.

What could happen next?

The launch of an anti-dumping investigation does not mean Mexico has already determined that Japan engaged in dumping. It marks the opening of proceedings in which the authorities must collect and analyse evidence before reaching a determination.

During the process, the companies involved may submit information, arguments and documents related to the transactions under investigation. The Economy Ministry must assess the available evidence to determine whether price discrimination occurred, whether the domestic industry suffered injury, and whether there is a link between the two factors.

If dumping and injury to the domestic industry are subsequently confirmed, the authorities could impose countervailing duties in line with the applicable regulations. Any such measure, however, will depend on the outcome of the proceedings.

For now, the key point is that Mexico has formally opened a new investigation into imports of steel plates in sheets from Japan, at a time when the steel industry remains a strategic sector of the Mexican economy.

The move again puts trade in steel products between Mexico and Japan under review by Mexican trade authorities and begins a process in which producers, importers and exporters will have to provide information to determine the conditions under which these goods entered the Mexican market.