The registered address of siam seinda (beijing) science and technology ltd. Is located in room 1506a, 15th floor, located on the first floor of the changyang road, located in the city of beijing; the registration authority is the market supervisory authority of beijing's chaiyang district. The legal person is represented by zhang xingbai and operates on general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; property management; conference and exhibition services; graphic design; green management of the city; marketing planning; professional design services; outsourcing works; import and export of goods; technology; import and export agents; sale of chemical products (other than licensed chemical products); manufacture of clothing; retail distribution of stationery; sale of type i medical equipment; sale of medical equipment in category ii; specialized equipment repair; electrical repair on a daily basis; old-age services; nursing services (other than medical services); nursing services (non-medical); health care services (non-medical); health advisory services (non-medical services); indoor air pollution management; environmental protection monitoring. (in addition to projects subject to legal authorization, activities are carried out on an autonomous basis in accordance with the law under a business licence) licensing projects: operation of medical equipment in category iii; sale of food. (a project subject to approval by law may only be carried out with the approval of the relevant department, depending on the documents or licences approved by the relevant department) (no activity shall be carried out in the category of projects prohibited and restricted by the state and municipal industrial policy