US Hits Taiwan Chemicals with Duties Over Unfair Trade Practices
Published Date: 3/9/2026
Notice
Summary
The U.S. has decided that imports of certain chemical products called MAMMOs from Taiwan are hurting American businesses because they’re being sold too cheaply and getting unfair government help. This means extra duties will be applied to these imports to protect U.S. companies. If you’re in the chemical industry or trade, expect changes soon that could affect prices and supply starting in 2026.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
Final Duty Orders on MAMMOs from Taiwan
The U.S. International Trade Commission found on March 4, 2026 that imports of multifunctional acrylate and methacrylate monomers and oligomers (MAMMOs) from Taiwan were sold at less than fair value and subsidized, and that a U.S. industry has been materially injured. These products are covered under HTS codes 2916.12.50, 2916.14.20, 3824.99.29, 3907.29.00, and 3907.30.00, and the determinations support countervailing and antidumping duty orders on those imports.
Higher Costs for Importers and Buyers
Because Commerce found MAMMOs from Taiwan to be subsidized and sold at less than fair value and the Commission found U.S. industry injured (determinations filed March 4, 2026), countervailing and antidumping duty orders on these Taiwan imports will be in place. If you import or buy these specific MAMMO products (HTS 2916.12.50; 2916.14.20; 3824.99.29; 3907.29.00; 3907.30.00), you can expect additional duties to apply to those imports.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-20201, Chassis and Subassemblies From China; Scheduling of Expedited Five-Year Reviews
The U.S. International Trade Commission is speeding up its review to decide if tariffs on chassis and subassemblies from China should stay or go. This affects U.S. businesses that make or import these parts and could impact prices or trade rules starting July 6, 2026. The review is quicker than usual because only domestic groups responded fully, so expect a fast decision on whether to keep the duties.
2026-20188, Notice of Receipt of Complaint; Solicitation of Comments Relating to The Public Interest
The U.S. International Trade Commission got a complaint about certain magnet wires imported from China that might be breaking trade rules. They want to hear from the public and other businesses about how this could affect everyone before deciding on possible bans or orders. If you’re involved or interested, now’s the time to speak up—this could impact sales and imports soon!
2026-20208, Certain Storage Containers and Toolboxes, Organizers, Component Boxes, and Coolers; Notice of a Commission Determination To Find a Violation of Section 337; Issuance of Remedial Orders; Continued Proceedings as to One Patent; Extension of Target Date
The U.S. International Trade Commission found that some imported storage containers, toolboxes, and coolers violate patent rules. They’re ordering these products to be stopped from entering the U.S. and setting a bond of 18% of their value during a review period. The investigation deadline is now extended to November 2, 2026, while one patent is still under review.
2026-20081, Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest
The U.S. International Trade Commission got a complaint from Netlist, Inc. about certain DRAM memory products possibly breaking trade rules. Big tech companies like Micron, NVIDIA, Broadcom, and Google are involved, and the Commission wants your thoughts on how this might affect the public. If things move forward, there could be import bans or sales stops, with decisions happening within about 60 days.
2026-20137, Certain Tissue Paper Products From China; Institution of a Five-Year Review
The U.S. International Trade Commission is checking if stopping extra taxes on tissue paper from China would hurt American businesses. This review started on October 1, 2026, and anyone interested must send their info by November 2, 2026. The decision could affect prices and jobs in the tissue paper market.
2026-20139, Aluminum Foil From Armenia, Brazil, Oman, Russia, and Turkey; Institution of Five-Year Reviews
The U.S. International Trade Commission is checking if aluminum foil imports from Armenia, Brazil, Oman, Russia, and Turkey still need extra duties to protect American businesses. They want to know if stopping these duties would hurt U.S. foil makers. People involved have until November 2, 2026, to share their thoughts, so the Commission can decide what’s best.
Previous / Next Documents
Previous: 2026-04521, Certain Off-Road Vehicles and Components Thereof; Notice of Institution of Investigation
Polaris Inc. has asked the U.S. International Trade Commission to investigate certain off-road vehicles and parts that might be breaking their patents. If the investigation finds problems, it could lead to bans on importing and selling these products in the U.S., affecting companies and customers soon. This could shake up the off-road vehicle market and impact sales and availability.
Next: 2026-04524, Submission for Review: 3206-0162, Report of Medical Examination of Person Electing Survivor Benefits, OPM 1530
If you’re retiring and want to choose survivor benefits for someone you care about, you’ll need to fill out a medical exam report (OPM Form 1530). The Office of Personnel Management is asking for public feedback on this form to make sure it’s clear and not too much work. Comments are open until May 8, 2026, so now’s the time to speak up if you have ideas or concerns!