Non-oriented electrical steel sheet composition, non-oriented electrical steel sheet manufacturing method and non-oriented electrical steel sheet product, including water-soluble epoxy resin and inorganic nanoparticles that are SiO2, TiO2, ZnO, or a combination thereof A first composition and an inorganic additive that is phosphoric acid (H3PO4), sodium hydroxide (NaOH), or a combination thereof, wherein the inorganic nanoparticles are substituted with terminal substituents of the water-soluble epoxy resin. The epoxy resin can provide a non-oriented electrical steel sheet composition that is a polyfunctional epoxy resin having three or more epoxy groups.
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