The registration address of the south tondsin chemicals company is located at no. 39, yellow sea avenue (central) in east town, hayan county. The registration authority is the city of haian administrative approval board, represented by a legal person, xu xinsen, and is the sale of chemical materials and products (except dangerous chemicals), instrumentation forms, type i and type ii medical devices. (projects subject to legal approval may not operate without the approval of the relevant department)