2026-06-04 Mitsubishi Electric Corporation “June 4, 2026 R&D: Development of a 40% biomass-based insulating epoxy resin with heat resistance and fluidity. We have developed an epoxy resin containing more than 40% biomass-derived components, which has high heat resistance and fluidity, for use as an insulating material to interrupt electricity for purposes such as electrical system isolation and ensuring safety.”