The flammability properties of the samples were examined using a micro calorimeter (Model Number: SG-5300) test apparatus, the FAA Micro Calorimeter (Federal Aviation Administration, Fire Testing Technology (FTT), UK), to calculate the heat release rate (HRR) according to the ASTM D 7309 The experiments that were carried out for this investigation are depicted schematically. First comes the epoxidation of corn oil (a, step 1), followed by the fabrication and preparation of eco-thermoset additives through thermoset blending, curing, and mechanical blending (b, step 2), and maleation through the addition of maleic anhydride (dissolved in acetone) was used to simply add to vinyl ester resin through curing (c, step 3).