In December 2025, the U.S. International Trade Administration (ITA) announced several antidumping (AD) and countervailing duty (CVD) determinations, as well as the initiation of investigations. Details on these cases, including affected the related HTS numbers, can be found in the official notices linked below.

Preliminary determinations were published for the following:

• Affirmative determinations in the AD investigations of steel concrete reinforcing bar from Algeria.
• Affirmative determination in the AD investigation of Polypropylene Corrugated Boxes from the Socialist Republic of Vietnam. 
• affirmative determination in the AD investigation of certain monomers and oligomers from the Republic of Korea.

The following AD and CVD investigations were initiated:

• AD investigations of chromium trioxide from India and the Republic of Türkiye and a CVD investigation of chromium trioxide from India. 

A final determination was published for the following AD and CVD cases:

• Affirmative determination in the CVD investigation of paper file folders from Cambodia, and its final negative determination in the AD investigation of paper file folders from Cambodia.
• Affirmative determinations in the AD and CVD investigations of hard empty capsules from Brazil, the People’s Republic of China, India, and the Socialist Republic of Vietnam. 
• Affirmative determinations in the AD and CVD investigations of overhead door counterbalance torsion springs from India.