The registration address of ioyang materials ltd. In dongyang city is in room no. 141, no. 317, in dongchung city, guangdong province. The registration authority is the market supervision authority of dong jing city, represented by a legal person, hong swordyang. The scope of business includes general projects: sale of surface functional materials; sale of new organic active materials; sale of dyes; sale of architectural and decoration materials; sale of coating equipment. (in addition to legally authorized projects, the operation is carried out on its own initiative under a licence)