New Antidumping Duty and Countervailing Duty Petitions on Glyphosate from China

At a Glance

• Monsanto Company and its wholly owned subsidiary Ruveon LLC filed antidumping and countervailing duty petitions on glyphosate from China.
• An investigation related to this petition could result in increased prices and/or decreased supply of glyphosate.
• The US Department of Commerce is expected to begin investigation on July 20, 2026.

On June 30, 2026, antidumping (AD) and countervailing duty (CVD) petitions were filed on glyphosate imported from China. Glyphosate is a herbicide used to control a broad spectrum of actively growing annual and perennial broadleaf weeds, grasses, and woody plants. Glyphosate formulations are commonly used at large scale in US corn and soybean production in tandem with herbicide-tolerant seeds. The petitions were filed by Monsanto Company and its wholly owned subsidiary Ruveon LLC.

The US AD law imposes special tariffs to counteract imports that are sold in the United States at less than "normal value." The US CVD law imposes special tariffs to counteract imports that are sold in the United States with the benefit of foreign government subsidies. For AD/CVD duties to be imposed, the US government must determine not only that dumping and/or subsidization is occurring, but also that there is "material injury" (or threat thereof) by reason of the dumped and/or subsidized imports. Importers are liable for any potential AD/CVD duties imposed. In addition, these investigations could impact purchasers by increasing prices and/or decreasing supply of glyphosate.

Scope

Please note that this section was not written by our authors but is taken verbatim from the petition.

The merchandise covered by this investigation consists of glyphosate (N(phosphonomethyl) glycine) in all forms, concentrations, and formulations, except where expressly excluded by this scope. Pure glyphosate is a crystalline solid or powder with the chemical formula C3H8NO5P and chemical abstract number ("CAS") 1071-83-6.

Covered merchandise includes glyphosate in the following forms: N-(Phosphonomethyl)iminodiacetic acid ("PMIDA" or "glyphosate intermediate," dry crystalline powder with chemical formula C5H10NO7P and CAS number 5994-61-6); glyphosate technical (dry powder with chemical formula C3H8NO5P and CAS number 1071-83-6); and glyphosate salt (dry crystalline solid, dry powder, or soluble liquid with CAS numbers 38641-94-0, 39600-42-5, or 40465-66-5).

Covered merchandise also includes all glyphosate formulations, which are soluble liquids or dry powder. Non-glyphosate components of glyphosate formulations include surfactants such as (but not limited to) AGM 550 (chemical description: Propoxylated and ethoxylated alkyl ether amine; CAS number 176022-82-5), Tallowamine ethoxylate (chemical description: Polyethoxylated tallow amine; CAS number 61971-26-2), Cocoamine ethoxylate (chemical description: Polyethoxylated coco amine; CAS number 61791-31-9), C 6182 (chemical description: Blend of polyethoxylated tallow amine and phosphate ester; CAS number 61971-26-2), and Break-Thru S240 (chemical description: Polyether trisiloxane; CAS number 134180-76-0). Glyphosate formulations are covered in their entirety, including non-glyphosate content.

The country of origin is determined based on the synthesis of the glyphosate or PMIDA. The processing of covered merchandise in a third country, such as by commingling, diluting, chemical conversion from PMIDA to glyphosate, introducing additives, or removing additives, does not remove the merchandise from the scope.

Excluded from the scope is any product covered by the existing antidumping and countervailing duty orders on 2,4-Dichlorophenoxyacetic Acid from the People's Republic of China. See 2,4-Dichlorophenoxyacetic Acid From India and the People's Republic of China: Antidumping Duty Orders, 90 Fed. Reg. 22,243 (May 27, 2025); 2,4-Dichlorophenoxyacetic Acid From the People's Republic of China and India: Countervailing Duty Orders, 90 Fed. Reg. 22,232 (May 27, 2025). Glyphosate esters are also excluded from the scope.

Subject merchandise presently enters the United States under HTSUS subheadings 2931.49.0020 (glyphosate technical and salt) and 3808.93.5020 (formulated glyphosate). Subject merchandise may also enter under HTSUS 2931.49.0080 if entered in the form of PMIDA. Although the HTSUS statistical reporting numbers and CAS numbers are provided for convenience and customs purposes, the written description of the scope of this investigation is dispositive.

Estimated Dumping Margin

The petitioner alleges dumping margins ranging from 68.90% to 446.47%.

The petitioner also alleges subsidies with respect to subject imports, although the CVD petitions do not quantify the alleged net subsidy margins.

Estimated Schedule of Investigations

The following is an estimated schedule of investigations by the US Department of Commerce (DOC) and the US International Trade Commission (ITC):