Address : No.4A-4B-4C Vuong Thua Vu St., Thanh Xuan Dist., Hanoi
Tel : (84-24) 37366990
Fax : (84-24) 35682240
Email: tstjsc@tst.com.vn
Website:http://www.tst.com.vn
Sector :  - Research, production and assembly of postal equipment, telecommunications electricity, electronics, information technology.
- Installation, repair, maintenance, testing, support the operation of the electricity, telecommunications, electronics, information technology.
- Technical consultancy, setting up investment projects, the evaluation design works projects.
- Import and export of equipment, materials, parts and components serving business activities of the company.
- Rental property operations and leasing products and telecommunications equipment, electronics, information technology.
- Construction of the telecommunications, electronics, information technology.
- Construction of power projects up to 35KV.
- Export and import and export directly entrusted supplies, equipment, spare parts, components and machinery in the field of post and telecommunications, radio, television, electrical , electronics, civil, informatic , transportation, industrial works.
- Management and investment, hotel business, restaurant.
- Service management, auction and advertismentreal real estate.
- Domestic and international travel.
- Business services trucking, rail, sea under the contract.
- Business agent services air transport.
- Design of civil engineering structures, technical infrastructure.
- Purchase and sale of optical fiber, copper cable, power cable and supplies, telecommunication equipment, information technology and television.
Detail :  - Activity status: Operating

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