Exhibit 99.1 Joint Filer Information Name of Joint Filer: The Dow Chemical Company Address of Joint Filer: 2211 H.H. Dow Way, Midland, Michigan 48674 Relationship of Joint Filer to Issuer: 10% Owner Issuer Name and Ticker or AgroFresh Solutions, Inc. [AGFS] Trading Symbol: Date of Earliest Transaction 9/12/2018 Required to be Reported (Month/Day/Year): Designated Filer: DowDuPont Inc.