On Jan. 12th, 2019, the "classification and hierarchy of biomass-based composite with plastic" industry standard program started and seminar was held in Sundi WPC, Mr Duan Xinfang who is the Secretary of National Biomass material standard technical committee, the director of wood industry research, the General manager of Sundi WPC Mr Li Jing, the professor of NFU Mr Li Dagang, the professor of Northeast forestry university Mr Fang Yiqun and some other WPC industry peer.