The registration address of south tonhuir acoustic technology ltd. Is located at no. 9 new north road on the northern street of chang city. The registration authority is such as xing city administrative approval board, with legal representatives being stoned, operating under licence items as follows: interior decorations; general contracts for construction of buildings and municipal infrastructure projects; construction activities of various kinds; design of construction works (subject to the approval of the law and prior to the approval of the relevant department for the execution of the business, subject to the approval of the project); general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; sale of noise-reducing equipment; engineering and technical research and experimental development; new material technology extension services; reduction of noise-resilient equipment manufacturing; sale of warming and soundproofing materials; sale of insulation and soundproofing materials; sale of construction materials; sale of architectural and decoration materials; and operation on an autonomous basis of a licence, except for projects subject to legal approval)