Exhibit 99.1 FOR IMMEDIATE RELEASE AMERICAN VANGUARD REPORTS FOURTH QUARTER & FULL YEAR 2023 RESULTS SETS 15MMADJUSTEDEBITDAGAINASTRANSFORMATIONTARGETNewportBeach,CA–March14,2024–AmericanVanguardCorporation(NYSE:AVD)todayannouncedfinancialresultsforthefourthquarterandfullyearendedDecember31,2023.Fiscal2023FourthQuarterFinancialHighlights–versusFiscal2022FourthQuarter:•Netsaleswere172.2 million in 2023, compared to 159.5millionin2022•Netincomewas ...