AMERICAN VANGUARD CORP

Item 1A. Risk Factors

The Company continually re-assesses the business risks, and as part of that process detailed a range of risk factors in the disclosures in American Vanguard’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed on March 27, 2024. The following disclosure amends and supplements those risk factors and, except to the extent stated below, there are no material changes to the risk factors as so stated.

Public statements made by USEPA regarding their preliminary findings in connection with the registration review of the Company’s products could adversely affect product sales and/or commercial viability. Registrations for the Company’s products are subject to registration review by the USEPA from time to time. In the course of the review, the Company submits, and the USEPA reviews, data studies. At any stage in the course of the review, USEPA may reach preliminary findings that could impair the commercial viability of a product. For example, in connection with USEPA’s review of the DCPA registration, based upon a comparative thyroid assay study (which is comparatively rare and quite complex), based upon limited data points, the USEPA found an adverse effect upon neonate rodents. Consequently, in June 2023, the agency published preliminary findings, noting its concern that based upon current, permitted use patterns, the product could have an adverse effect upon human health and, in particular, pregnant women. At the same time, the agency invited the Company to examine mitigation measures to allay their concerns, which the Company is doing. There is no guarantee that mitigation measures or additional data proffered by the Company will be sufficient to overcome USEPA’s conclusions. Further, it is possible that the agency could take more drastic measures to either reduce the use or cancel the registration of the product. Regulatory activities of this nature, whether in connection with DCPA or other products of significance, could have a material adverse effect upon the Company’s financial performance.