Epoxy resin is important chemical new material, apply extensively at communication of aerospace, new energy resources, 5G, electron the industrial domain such as traffic of building of electric, project, orbit and industry of new and high technology. Up to 2021, always produce of epoxy resin product can close 2.5 million tons, include resin of discharge ring oxygen (contain 2 footwork solid body) , bromine changes epoxy resin, phenolic aldehyde epoxy resin (contain cresol of double phenolic F, adjacent, phenol to wait) , a variety of types such as dissolve the form of a drug, only import measures 215 thousand tons, consumption exceeds 2.1 million tons, our country already became big production and consumptive state. Suffer demand of industry of cable of downstream electron zephyr to prop up, foreign device jockeys because of force majeure and the element influence such as raw material spurt in prices, epoxy resin spurt in prices, 2021 annual all valence 31078 yuan / ton, rise compared to the same period 52.2% . Advocate A of raw material double phenol year all valence 22377 yuan / ton, rise compared to the same period 94.0% , annulus oxygen chloric propane year all valence 14527 yuan / ton, rise compared to the same period 36.9% . Be based on rich and generous industry profit and hopeful market judgement, at present enlarge of company of chain of epoxy resin industry produces apiration relatively intense. On one hand the enterprise perfects unifinication industry catenary ceaselessly, also attracted new entrant of not little industry on the other hand, build capacity of project monomer system to also tend giant, in build, program project is as high as 3 million tons.