Sioux county electronic science and technology ltd. Is registered at the mayor of suzhou, no. 1 ulu, with the registration authority being the administrative approval authority of the city of suzhou's guangsu district, represented by a legal person, and is operating in the following areas: research and development, sale of new silicon rubber electronics, cissil pressure composites, metal works, mechanical equipment, electronic meta-ware and components, electronic materials, printed circuit board raw materials, compressor consumables, non-hazardous chemical products; import and export operations for self-employment and agency of goods and technologies (except for goods and technologies for which the state limits business operations or prohibits export). (projects subject to legal approval may not operate without the approval of the relevant department)