The registration address of dong chong city to deutsche science and technology ltd. Is located in room 301, building 3, no. 1, wankang street union park, dong chong city, guangdong province. The registration authority is the market supervision authority of dong chong city, represented by a legal person, and includes the development and transfer of new materials for environmental protection and technology. (projects subject to legal approval to operate with the approval of the relevant department)