In September of 2026, the U.S. International Trade Administration (ITA) announced several preliminary and final antidumping (AD) and countervailing duty (CVD) determinations and initiated new trade remedy investigations. Additional details on these cases, including the affected HTS numbers, and duty rates, can be found in the official notices linked below.

Preliminary determinations were published for the following investigations:

• CVD investigation of oil country tubular goods (OCTG) from Austria.
• CVD investigation of tin mill products from China.
• AD investigation of tin mill products from China.
• CVD investigation of Tris(hydroxymethyl)aminomethane (tris) from China.
• AD investigations of large graphite electrodes from China and India.
• CVD investigations of stationary and portable air compressors (air compressors) from China, Malaysia, and Vietnam.
• AD investigation of truck bed covers from China.
• AD investigations of certain linear hydraulic cylinders and parts thereof from Canada, China, India, Korea, and Mexico, and CVD investigations of certain linear hydraulic cylinders from China, India, and Mexico.
• AD investigations of certain fatty acids from Indonesia and Malaysia.
• AD and CVD investigations of crystalline silicon photovoltaic cells, whether or not assembled into modules (solar cells) from India, Indonesia, and Laos.
• CVD investigation of carbon and alloy steel wire rod from Algeria.
• AD investigations of freight rail couplers and parts thereof from the Czech Republic and India, as well as a CVD investigation of freight rail couplers and parts thereof from India.

The following AD and CVD investigations were initiated:

Final determinations were published for the following AD and CVD cases: