Shanghai longko science and technology ltd. Has its registered address in room 4393, no. 3,688, no. 5, no. 4,393, shanghai city's golden hills pitt guard road, with the registration authority of the golden mountain market supervisory authority, represented by a legal person, and operating on a licensed project: construction works. (projects subject to legal approval and subject to approval by the relevant department for the commencement of business activities, subject to approval of documents or licences by the relevant department) general items: technical services, technology development, technical advice, exchange, technology transfer, technical promotion; development of electronic-specific materials; sale of pumps and vacuum equipment; sale of new membrane materials; sale of instrument instruments; sale of communications equipment; sale of laboratory analytical instruments; sale of machinery equipment; sale of refrigeration, air-conditioning equipment; sale of electronic products; wholesale distribution of electronic devices; retail distribution of electronic appliances; sale of electronic proprietary materials; sale of semiconductor equipment; sale of semiconductor lighting; sale of electrical electronic devices; sale of optical electronic devices; sale of integrated circuit chips and products; sale of pharmaceutical-specific equipment; sale of consumer goods on a daily basis; sale of rubber products; wholesale distribution of spare parts for vehicles; wholesale distribution of motorcycle and spare parts; distribution of five gold products; sale of lubricants; sale of specialized chemical products (without dangerous chemicals); sale of non-licensable products; sale of electronic appliances; sale of goods except for export and import/export of technology. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)