Exhibit 31.1.1

AMERICAN VANGUARD CORPORATION

CHIEF EXECUTIVE OFFICER CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Douglas A. Kaye III, certify that:

1. I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of American Vanguard Corporation; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: May 30, 2025		/s/ Douglas A. Kaye III
		Douglas A. Kaye III Chief Executive Officer and Chairman of the Board