| 2432 | Cold rolling |
| 1610 | Sawing, sawing and wood shavings |
| 1621 | Production of plywood, veneer, plywood and board |
| 1622 | Manufacture of construction furniture |
| 1623 | Manufacture of wooden packaging |
| 1629 | Production of other products from wood; production of products from bamboo, cork, straw and plaiting materials |
| 2410 | Manufacture of iron, steel and ferrous alloys |
| 2420 | Manufacture of steel pipes, pipes, pipe fittings and profiles |
| 2431 | Cold drawing |
| 2511 | Manufacture of metal components |
| 2512 | Manufacture of metal containers, tanks and containers |
| 2513 | Production of boilers (pressure boilers) |
| 2591 | Forging, stamping, pressing and rolling metals; powder metallurgy |
| 2592 | Mechanical processing; plating and metal treatment |
| 2593 | Manufacture of cutting tools and hand tools |
| 2599 | Manufacture of products from other uncategorized prefabricated metals |
| 2821 | Production of agricultural and forestry machines |
| 2822 | Manufacture of metal forming machines and machine tools |
| 2823 | Manufacture of machines for metallurgy |
| 2824 | Manufacture of mining, quarrying and construction machines |
| 2825 | Manufacture of food, beverage and tobacco processing machines |
| 2826 | Manufacture of textile machines, sewing machines, tanning machines and footwear |
| 2829 | Manufacture of other specialized machinery and equipment not yet classified |
| 3311 | Repair of prefabricated metal products |
| 3312 | Repair of machinery and equipment |
| 3314 | Repair of electrical equipment |
| 3315 | Ship and boat repair and maintenance |
| 3319 | Repair of other equipment |
| 3320 | Installation of industrial machinery and equipment |
| 3830 | Scrap recycling |
| 4101 | Xay dung de o |
| 4102 | Make use of it |
| 4212 | Grind the curved content of the deck |
| 4221 | To grind curved virginity |
| 4222 | Grinding and curving |
| 4299 | Grinding and grinding other products |
| 4311 | Demolition |
| 4312 | Site preparation |
| 4321 | Installation of electrical systems |
| 4322 | Installation of water supply and drainage, heating and air conditioning systems |
| 4329 | Installation of other construction systems |
| 4330 | Completion of construction works |
| 4390 | Other specialized construction activities |
| 4653 | Ban buon may moc thiet bi va phu tung may nong nghiep |
| 4659 | Ban buon may moc thiet bi va phu tung may khac |
| 4671 | Ban buon nhen lieu ran long when colliding with related products |
| 4672 | Metallic and optical metallic block board |
| 4673 | Board of buon vat lieu thiet bi lap dat khac in milling capacity |
| 4679 | Board of directors for other business activities |
| 6810 | Real estate business, land use rights owned, used or leased by the owner |