The registration address of the city of siam is located at no. 7-8 of the hong kong hong kong consolidated market in zenghing town, zenging city. The registration authority is the city's administrative approval board, represented by legal persons, and includes the operation of dangerous chemicals (to the extent and in the manner specified in the licence); the sale of chemical products and raw materials (other than hazardous chemicals), environmentally friendly equipment and accessories, fire-resistant materials, hardware appliances; and the import and export of self-employed and proxy goods and technologies (with the exception of goods and technologies whose import and export is restricted by the state). (projects subject to legal approval may not operate without the approval of the relevant department)