Why Vietnam, and why now
Vietnam is the fastest-growing manufacturing destination in ASEAN, with FDI inflows from Korea, Japan, Taiwan, the United States and increasingly global market manufacturers relocating production capacity. Each foreign-invested factory needs HVAC for the production environment, the office, the canteen, the labour accommodation and (for high-tech facilities) cleanroom HVAC. Add to this the domestic real estate boom, the hyperscale data centre wave (VNG, FPT, Viettel, CMC) and the metro/airport infrastructure programme, and Vietnam in 2026 is the most active HVAC duct market in ASEAN.
For HVAC duct fabricators, the opportunity is to set up a Vietnamese fabrication shop that can serve FDI projects on shorter lead times than imported duct globally, and at lower cost than imported duct from Singapore or Thailand. SBKJ has supplied auto duct lines and spiral tubeformers to Vietnamese fabricators since 2017; this guide is the playbook we walk through with new entrants.
Standards and codes — what you must comply with
- TCVN 5687:2024 — Vietnamese national standard for HVAC system design
- QCVN 09:2017/BXD — National Technical Regulation on energy efficiency for buildings
- SMACNA HVAC Duct Construction Standards — applies on FDI projects (Samsung, LG, Foxconn, Intel) and international hotel/office projects
- EN 1505 — applies on European-led FDI (Bosch, Siemens, ABB)
- JIS standards — applies on Japanese-led FDI (Toyota, Mitsubishi, Honda, Panasonic)
- ASHRAE 62.1 and 90.1 — referenced on most international-led HVAC system designs
- TCVN 9258 — Vietnamese cleanroom standard (ISO 14644 aligned) for pharma and semiconductor cleanroom HVAC
In practice, most large HVAC duct fabricators in Vietnam configure their lines for both SMACNA and TCVN, with EN/JIS recipes available for specific FDI projects. SBAL-V multi-standard PLC handles all of these.
FDI sectors driving HVAC demand (2026)
- Electronics manufacturing: Samsung (Bac Ninh, Thai Nguyen), LG (Hai Phong), Foxconn (multiple provinces), Goertek, Luxshare. Largest single driver of Vietnamese HVAC duct demand. Combination of standard industrial HVAC for general production, plus cleanroom HVAC for high-tolerance assembly.
- Semiconductor (emerging): Amkor (Bac Ninh), Hana Micron, Vinacapital-backed ventures. ISO 14644 Class 5–7 cleanroom HVAC requirement, dominated by US, Korean and Taiwanese specifications.
- Pharmaceutical and biotech: DKSH, Sanofi, Pfizer, Hau Giang Pharma, Imexpharm. ISO 14644 Class 7–8 cleanroom HVAC plus general HVAC. EU/US FDA standards apply.
- Hyperscale data centre (fastest-growing): VNG, FPT Telecom, Viettel, CMC. SMACNA standard, fire-rated risers, large ductwork volumes per project. See our data centre HVAC duct manufacturing guide.
- Real estate (residential and commercial): Vingroup, Sun Group, Novaland, CapitaLand. Mid-rise to high-rise residential and commercial HVAC duct.
- Hospitality: international hotel groups (Marriott, Hilton, Accor) building hotels in HCMC, Hanoi, Da Nang, Phu Quoc.
- Infrastructure: Long Thanh Airport (HCMC area, completion 2026), HCMC Metro extensions, Hanoi Metro, hospital projects.
Location selection
- Ho Chi Minh City and southern industrial corridor (Binh Duong, Dong Nai, Long An, Vung Tau): largest construction market, deepest labour pool, best access to southern FDI and Long Thanh Airport project. Recommended for fabricators serving southern Vietnam and Cambodia adjacent markets. Industrial park land lease ~USD 70-110/m²/year.
- Hanoi and northern industrial belt (Bac Ninh, Hung Yen, Hai Phong, Quang Ninh, Thai Nguyen): closest to Samsung, LG, Foxconn FDI. Recommended for fabricators targeting electronics manufacturing FDI. Industrial park land lease ~USD 80-120/m²/year, dropping to USD 55-80 in peripheral provinces.
- Da Nang and central Vietnam: smaller market but underserved. Recommended for fabricators with regional ambition or specific central projects. Industrial park land lease ~USD 50-80/m²/year.
Equipment list and capex
A typical Vietnamese HVAC duct fab shop capable of 1,000-1,800 m²/day rectangular plus 250 m/day spiral round needs the following SBKJ equipment list:
- SBAL-V auto duct production line — USD 280,000–340,000 ex-works
- SBTF-1500 spiral tubeformer — USD 75,000–95,000
- TDF flange forming machine — USD 28,000–38,000
- SBLC lockformer — USD 18,000–24,000
- CNC plasma cutter — USD 35,000–45,000
- Hydraulic shear and folding — USD 28,000–48,000
- Auxiliary equipment — USD 15,000–35,000
Total ex-works equipment: USD 480,000–625,000. Add 8-15% for freight, marine insurance, Vietnamese customs duty (typically 5-10% on industrial machinery for FDI-zone import) and inland trucking from Hai Phong or HCMC port. Add USD 30,000-80,000 for building lease fit-out, electrical connection, compressed air and small tooling. Total turnkey capex: USD 520,000–820,000.
Vietnamese FDI status (registered Foreign Invested Enterprise) typically reduces import duty on capital equipment to 0% for the first few years after license — confirm with a local tax adviser; the saving on capital equipment can be USD 30,000–60,000.
Vietnamese labour cost
Vietnamese HVAC fab labour is among the lowest in the SBKJ customer base. Approximate fully-loaded annual cost (2026, USD):
- Senior fitter / supervisor: USD 8,000–14,000/year
- HVAC fitter (skilled): USD 4,500–8,000/year
- HVAC fitter (semi-skilled): USD 3,500–5,500/year
- Auto duct line operator (SBAL-V): USD 5,500–10,000/year
- Sheet metal welder: USD 7,000–12,000/year
- QA/QC engineer: USD 14,000–22,000/year
- Project / contract manager: USD 25,000–40,000/year
The labour cost advantage drives Vietnam's competitiveness against Singaporean, Thai and Indonesian fabricators. The trade-off is workforce skill — basic sheet metal training is widespread but advanced welding (cleanroom-grade TIG, ASME Section IX qualification) requires investment. SBKJ supplies operator training in English/Mandarin during commissioning; many Vietnamese supervisors are bilingual Vietnamese/English which simplifies the handover.
Vietnamese energy cost
Vietnamese industrial electricity is approximately USD 0.08–0.12/kWh for industrial FDI, slightly above subsidised levels but well below European or Australian tariffs. For an SBAL-V drawing approximately 35 kW average over 2,000 hours/year, annual energy cost is roughly USD 5,500–8,500. Multi-shift operation amplifies this; many Vietnamese fab shops run 2-shift operation to amortise capex.
Sourcing path — local distributor vs direct from international manufacturers
Vietnamese HVAC duct buyers have two paths:
- Local distributor in Vietnam: faster commissioning, local language support, less customs friction, typically 25-40% mark-up over ex-works manufacturer pricing
- Direct from global HVAC machinery manufacturer (SBKJ): lower equipment cost, longer commissioning timeline, requires Vietnamese customs broker and rigging contractor
For Vietnamese FDI buyers (already comfortable with international procurement), direct international procurement typically wins on TCO. SBKJ has authorised distributor coverage in HCMC and Hanoi for buyers preferring local relationships. Shipping from Australia to Hai Phong port is approximately 5–7 days transit; HCMC port is 7–10 days.
SBKJ Vietnam-ready package
- TCVN-aligned PLC recipes pre-loaded
- SMACNA, EN 1505 and JIS recipes for FDI projects
- FAT certificate at SMACNA Class A and TCVN 5687
- Vietnamese-language quick-reference operator card (in addition to English)
- Vietnamese 380V/50Hz electrical wiring with IEC fuse standard
- ISPM-15 fumigated crating for Vietnamese customs
- 72-hour WhatsApp response with Mandarin/English-speaking support; Vietnamese-speaking partner available on request
- Authorised distributor relationships in HCMC and Hanoi for buyers preferring local presence
Get a Vietnam-ready SBKJ quotation →
FAQ
What HVAC duct standard applies in Vietnam?
TCVN 5687 for domestic projects; SMACNA for FDI (Samsung, LG, Foxconn); EN 1505 for European-led FDI; JIS for Japanese-led FDI. Most large fabricators configure SBAL-V for both SMACNA and TCVN with optional EN/JIS recipes.
What FDI sectors drive HVAC demand?
Electronics (Samsung, LG, Foxconn) is largest, then semiconductor (Amkor, Hana Micron), pharma (Sanofi, Pfizer), hyperscale data centre (VNG, FPT, Viettel, CMC), commercial real estate, hospitality and infrastructure (Long Thanh Airport, metros, hospitals).
Where should I locate?
HCMC and southern corridor for southern projects (largest market). Hanoi/Bac Ninh for FDI electronics belt. Da Nang for central Vietnam.
What is typical labour cost?
Senior fitter USD 8-14K/year, fitter USD 4.5-8K, line operator USD 5.5-10K, welder USD 7-12K, QA engineer USD 14-22K. Lowest in ASEAN customer base.
What is the capex?
USD 520-820K turnkey for SBAL-V plus SBTF-1500 plus ancillaries plus building fit-out, capable of 1,000-1,800 m²/day rectangular and 250 m/day spiral.
