Trade Defense

US Commerce Corrects HTSUS Subheading in PTMEG Antidumping Investigations on China, Korea, Taiwan and Vietnam

In May 2026 the US Department of Commerce issued a Federal Register correction to its PTMEG antidumping initiation notice, clarifying the HTSUS subheadings used to identify covered imports while leaving the written product scope unchanged. For affected exporters and US importers, this is a technical but important update for tariff-classification and screening systems, rather than a change to the underlying investigation timelines or substantive coverage.

15 May 2026, 16:27federalregister.govUnited StatesChinaSouth KoreaTaiwanVietnam

US Court of International Trade Sustains Zero Antidumping Margins for Chinese Xanthan Gum (Meihua, Fufeng)

In May 2026, the US Court of International Trade upheld the Department of Commerce’s revised zero‑margin antidumping determination for Chinese xanthan gum exporters Fufeng and Meihua for the 2020–2021 review. This effectively removes antidumping duty exposure on reviewed entries from these suppliers and signals that future cash‑deposit rates and potential refunds will depend on Commerce and Customs implementing the court‑approved zero rates.

15 May 2026, 15:44govinfo.govUnited States

US Commerce Issues Preliminary Antidumping Review Results for Glycine From India

The US Department of Commerce has issued preliminary results of its 2024–2025 antidumping duty review on glycine imports from India, finding significant dumping margins for two major exporters while rescinding the review for 27 other companies. These findings signal likely continuation of high duty exposure for key Indian suppliers if confirmed in the final results, with potential impacts on US importers’ glycine sourcing costs and downstream product pricing.

14 May 2026, 19:13govinfo.govUnited States

US Commerce Sets Preliminary CVD Rates on Chromium Trioxide From India

In May 2026 the US Department of Commerce issued a preliminary affirmative countervailing duty determination on chromium trioxide imports from India, setting provisional subsidy rates of 2.44% for the main producer and all other exporters. This triggers immediate cash deposit requirements on covered imports and aligns the final subsidy decision with the related antidumping case by early August 2026, signalling higher landed costs and trade risk for users of this key hexavalent chromium chemical in US supply chains.

14 May 2026, 19:13federalregister.govUnited States

US Commerce Issues Preliminary 2023 Countervailing Duty Review Results for Aluminum Foil From Oman

The US Department of Commerce has issued preliminary 2023 countervailing duty review results for aluminum foil from Oman, finding a 14.15% subsidy rate for Oman Aluminium Rolling Company SPC and opening a short window for comments and hearing requests. Final results later in 2026 could change duty liabilities and cash-deposit rates for US importers of Omani aluminum foil, with implications for sourcing costs and contract planning.

14 May 2026, 12:36federalregister.govUnited States

US Commerce Issues Preliminary 2023 CVD Review Results and Partial Rescission for Korean Oil Country Tubular Goods

The US Department of Commerce has issued preliminary 2023 countervailing duty review results for Korean oil country tubular goods, finding a de minimis 0.13 percent subsidy rate for SeAH Steel and partially rescinding the review for other Korean producers. Importers and Korean OCTG producers now face a short window to submit briefs and hearing requests before final rates are set by September 2026, which will determine refund or collection of 2023 duties and whether future SeAH shipments require cash deposits.

14 May 2026, 12:36federalregister.govUnited States

U.S. International Trade Commission Schedules Final Phase of Antidumping and Countervailing Duty Investigations on Crystalline Silicon Photovoltaic Cells from India, Indonesia, and Laos

The US International Trade Commission has scheduled the final phase of antidumping and countervailing duty investigations on crystalline silicon photovoltaic cells and modules from India, Indonesia, and Laos, setting a hearing on 9 September 2026 and multiple prehearing and posthearing filing deadlines from August to October 2026. The outcome could result in new trade remedies on key solar products, affecting module sourcing strategies, project economics, and clean energy deployment plans for businesses linked to the US solar supply chain.

14 May 2026, 12:35federalregister.govUnited States

US Commerce Publishes Preliminary Antidumping Duty Administrative Review Results for Sodium Nitrite From India (2024–2025)

The US Department of Commerce has issued preliminary results of its antidumping duty review on sodium nitrite imports from India for 2024–2025, finding no dumping by Deepak Nitrite Limited while maintaining a 42.76% rate for certain non‑examined exporters. These preliminary margins and associated comment deadlines shape future duty exposure and cash‑deposit rates for US importers and traders of sodium nitrite, making timely review and engagement with the review process strategically important.

13 May 2026, 19:24public-inspection.federalregister.govUnited States

US DOC Issues Preliminary Antidumping Review Results for Strontium Chromate From Austria

The US Department of Commerce has issued preliminary results in its 2023–2024 antidumping duty review of strontium chromate from Austria, finding that Habich GmbH dumped at a margin of 11.01 percent and confirming continued enforcement of the existing trade remedy order. If maintained in the final results, this margin will set the basis for assessment and cash deposit rates on US imports of this pigment, requiring affected importers and supply chains to plan for higher duty exposure and adjust sourcing and pricing strategies accordingly.

13 May 2026, 19:19public-inspection.federalregister.govUnited States

US Commerce Issues Preliminary 2023 CVD Review Results and Partial Rescission for Chlorinated Isocyanurates From China

In May 2026, the US Department of Commerce issued preliminary 2023 countervailing duty review results for chlorinated isocyanurates from China, setting a provisional 18.71% subsidy rate for Heze Huayi Chemical Co. Ltd. and rescinding the review for 41 other exporters. Importers and producers should plan for potential changes to final CVD cash deposit and assessment rates on 2023 entries once the review is completed later in 2026, and consider the implications for pricing, contracts, and duty exposure.

13 May 2026, 19:19public-inspection.federalregister.govUnited States

US Commerce Postpones Final Antidumping Determination and Extends Provisional Measures for Crystalline Silicon Photovoltaic Cells From Indonesia

In May 2026, the US Department of Commerce postponed the final antidumping determination on crystalline silicon photovoltaic cells from Indonesia and extended provisional measures from four to up to six months. This keeps provisional cash-deposit requirements in place longer and pushes final duty-rate certainty for importers and solar project developers out to at least September 2026.

13 May 2026, 19:19public-inspection.federalregister.govUnited StatesIndonesia

US Commerce Issues Preliminary 2024 CVD Review Results for Sodium Nitrite From India

The US Department of Commerce has released preliminary results of the 2024 countervailing duty administrative review on sodium nitrite imports from India, finding subsidy rates of 2.26% for Deepak Nitrite and Kronox and 63.60% for Kutch Chemical, and proposing to rescind the review for three other exporters. If confirmed in the final results later in 2026, these findings will set future CVD cash-deposit rates, potentially increasing landed costs for shipments from high-subsidy suppliers while leaving the 2.40% all-others rate unchanged.

13 May 2026, 19:18public-inspection.federalregister.govUnited States

US Commerce Publishes Preliminary Antidumping Review Results for Crystalline Silicon Photovoltaic Products From Taiwan, 2024–2025

In May 2026 the US Department of Commerce issued preliminary results of its 2024–2025 antidumping duty administrative review on crystalline silicon photovoltaic products from Taiwan, finding no dumping and a 0.00% margin for the sole mandatory respondent. Importers and solar-sector buyers should track the early June briefing and mid-June hearing deadlines and prepare for potential duty and cash-deposit adjustments once final results are issued later in 2026.

13 May 2026, 18:56federalregister.govUnited States

European Commission Imposes Provisional Anti-Dumping Duty on PET Spunbond Imports From China

From mid-May 2026 the European Commission is applying provisional anti-dumping duties of up to 50 % on imports of PET spunbond non-woven polyester sheets from China into the EU. EU importers of these carrier fabrics for roofing membranes face immediate cost increases and potential sourcing shifts while the investigation proceeds towards a definitive decision on long-term duties later in 2026.

13 May 2026, 12:38eur-lex.europa.euEuropean Union

EU Commission Imposes Provisional Anti-Dumping Duty on PBTC Imports From China

In May 2026 the European Commission imposed very high provisional anti-dumping duties on EU imports of PBTC (a phosphonate water-treatment chemical) from China under Implementing Regulation (EU) 2026/1045. This sharply raises landed costs for affected chemical importers and downstream users, encouraging diversification away from Chinese supply and contract renegotiation while the investigation proceeds toward potential definitive measures.

13 May 2026, 12:37eur-lex.europa.euEuropean Union

EU Adds Linqing Hengtai as New Exporting Producer for Tin-Plated Flat Steel Anti-Dumping Duties

In April 2026 the European Commission adopted Implementing Regulation (EU) 2026/843 amending its tin-plated flat steel anti-dumping duties to recognise Linqing Hengtai Metal Materials Co., Ltd as a new exporting producer. Importers of tin-plated flat-rolled steel from China must now apply the 24.6% cooperating-producer duty using TARIC additional code 88AZ for this supplier, adjusting pricing, contracts and customs declarations accordingly.

13 May 2026, 11:54eur-lex.europa.euEuropean Union

USITC Institutes AD/CVD Investigations on N-Cyclohexylbenzothiazole-2-sulfenamide (CBS) From China

In May 2026 the US International Trade Commission opened preliminary antidumping and countervailing duty investigations into imports of N-Cyclohexylbenzothiazole-2-sulfenamide (CBS) from China, with key hearings and written submissions scheduled through late June. If the investigations lead to duties, importers and downstream users of this chemical could face higher landed costs and supply risk, so affected companies should monitor the case, consider participating in the process, and assess alternative sourcing options.

12 May 2026, 15:28federalregister.govUnited States

US Commerce Lists Q1 2026 AD/CVD Scope Rulings for Pipe, Mattresses, Aluminum Extrusions and Lawn Mowers

The US Department of Commerce has issued six final antidumping and countervailing duty scope rulings for the first quarter of 2026, confirming whether specific pipe, mattress, aluminum extrusion, lawn mower and brake hose products fall within existing trade orders and publishing the results in a consolidated Federal Register notice. These determinations confirm duty exposure for some products while excluding others based on origin and product design, shaping import costs, sourcing strategies and trade compliance risk for suppliers and buyers linked to India, Mexico, China, Poland, Thailand and the United States.

12 May 2026, 15:27federalregister.govUnited States

European Commission Initiates Expiry Review of Anti-Dumping Duties on Aluminium Extrusions from China

In March 2026 the European Commission launched an expiry review of the anti-dumping duties on aluminium extrusions from China, based on a request from European Aluminium and covering specified CN and TARIC product codes. Although the hearing and comment deadlines have already passed, the review keeps existing duties in place and could reshape long-term import costs and supply conditions for aluminium profile users across the EU, so companies should monitor the investigation and plan for scenarios in which the measures are maintained or allowed to lapse.

12 May 2026, 14:58data.europa.euEuropean Union

EU Reopens Anti-Dumping Investigation on Lysine Imports from China (Absorption Reinvestigation)

In April 2026 the European Commission reopened its anti-dumping investigation into lysine imports from China through an absorption reinvestigation, examining whether post-duty price cuts have undermined the effect of the 2025 definitive measures. If absorption is confirmed, duties on Chinese lysine could be raised by up to twice their current level, so producers, importers and downstream feed users should reassess sourcing, pricing, and engagement with the tight investigation timetable.

12 May 2026, 12:51eur-lex.europa.euEuropean UnionChina