The registration address of the shenzhen smart locking company, ltd., is located at 407 chonghua road, 4 in the yangtze neighbourhood of shenzhen city. The registration authority is the shenzhen market supervision authority, which is represented by hao yeung and operates on general lines of operation: manufacture of hardware; retail sale of hardware products; wholesale distribution of hardware products; development of hardware products; sale of electronics; sale of metal products; production of commercial coded products; sale of commercial coded products; domestic trade agents; and import and export of goods. (except for projects subject to legal authorization, operating on an autonomous basis with a business licence)。