 This research has developed a new type of EMI shielding material based on three-dimensional graphene oxide, GO, with regular honeycomb structure, GH, amino-functionalized faini alloy particles, ffaini, and epoxy resin. The resulting RGH ffaini slash epoxy composites show excellent EMI shielding performance, thermal stability, and mechanical properties. This study provides a promising approach for developing efficient EMI shielding materials. This article was authored by Ping Song, Zhong Lei Ma, Hua Chiu, and others.