Anhui Wanwei Updated High Tech Material Industry Co Ltd has introduced and independently developed production technologies, including solution polymerization and continuous alcoholysis, for EVOH resin production. It has spearheaded the establishment of the "Advanced Functional Membrane Materials Industry Innovation Research Institute," focusing on tackling core technologies in functional membrane materials. In recent years, it has accelerated the construction of a biomass-based PVA water-soluble film project (green biodegradable packaging material), which boasts significant material advantages, such as high barrier properties and superior transparency compared to traditional films.