Factory Network Guide Updated April 2026

Vietnam's Manufacturing Zones & Industrial Parks: Where Quality Factories Are Built

Binh Duong. Dong Nai. HCMC. Hanoi. Dewin's 179+ audited factories span Vietnam's four major manufacturing clusters — each physically verified by our on-ground team with a full 50-point Dolphin Audit.

179+
Audited Factories
across all zones
1,700+
Real Factory Photos
on-site from our team
50-pt
Dolphin Audit
every factory
16+
Free Trade Agreements
Vietnam coverage

Vietnam's Four Manufacturing Powerhouses

Where Dewin operates, what each zone specializes in, and why global buyers trust Vietnam manufacturing.

📍 Binh Duong Province

Vietnam's #1 Industrial Province · 29 Industrial Parks · Home to VSIP I & II

Dewin's Largest Coverage Zone

Key Industrial Parks

  • VSIP Binh Duong I & II
    Est. 1996. Singapore JV. On-site VCCI branch. Precision manufacturing cluster.
  • Amata City Binh Duong
    Thai JV. Heavy industry, metalworking, die casting, industrial machinery.
  • Mapletree Binh Duong
    Singapore developer. Modern estate. Electronics & precision parts.
  • Protrade International
    Auto parts, industrial machinery, CNC components focus.

Manufacturing Specialties

CNC Precision Machining 60+ factories
Die Casting (Al & Zn) 35+ factories
Sheet Metal Fabrication 35+ factories
Injection Molding 25+ factories
CNC Lathe / Turning 40+ factories
Multi-Process Assembly 20+ factories

Why Global Buyers Choose Binh Duong

  • Highest precision machining density in Vietnam
  • Japanese & Korean investment → quality culture embedded
  • VSIP on-site VCCI: fastest VCCI Form B processing
  • ~1.5h to Cat Lai Port — efficient export logistics
  • University & vocational pipeline: skilled workforce
  • Binh Duong New City: high-quality worker accommodation

📍 Dong Nai Province

Heavy Industry Hub · Amata Bien Hoa Est. 1994 · Adjacent to Long Thanh Airport

Foundry & Heavy Mfg Cluster

Key Industrial Parks

  • Amata City Bien Hoa
    Est. 1994. Thai JV. One of Vietnam's oldest IPs. Heavy industry cluster.
  • Long Thanh Industrial Park
    Adjacent to Long Thanh International Airport. Air freight logistics advantage.
  • LOTECO
    Export-oriented manufacturing. Industrial parts and components.
  • Nhon Trach IPs (I–VI)
    Large zone cluster. Mixed heavy and light manufacturing.

Manufacturing Specialties

Sand Casting (Gray Iron / Ductile) 18+ factories
Forging (Hot & Cold) 15+ factories
Die Casting (Large Parts) 20+ factories
Post-Cast CNC Machining 30+ factories
Industrial Assembly 15+ factories
Heat Treatment Services 10+ factories

Why Buyers Choose Dong Nai

  • Amata Bien Hoa (1994): Vietnam's oldest active heavy-industry park
  • Automotive Tier 1 & 2 quality culture (Toyota, Hyundai, Isuzu suppliers)
  • Lower land costs vs Binh Duong → competitive pricing on castings/forgings
  • Long Thanh Airport (2026) advantage for air freight of high-value parts
  • Strong foundry cluster: OES spectrometers, heat treatment in-house
  • Cat Lai Port access ~1h via expressway

📍 Ho Chi Minh City (HCMC)

Vietnam's Commercial Hub · Tan Thuan EPZ Est. 1991 · Cat Lai Port

Dewin HQ & On-Ground Team

Key Industrial Zones

  • Tan Thuan Export Processing Zone
    Est. 1991. Vietnam's first EPZ. Electronics, garments, precision assembly.
  • Tan Binh Industrial Park
    Central HCMC. Mixed manufacturing. Electronics, food, precision parts.
  • Hiep Phuoc Industrial Park
    Port-adjacent. Heavy industry, chemicals, metalworking.
  • Saigon Hi-Tech Park (SHTP)
    Technology hub. Electronics, semiconductors, high-precision components.

Manufacturing Specialties

Electronics & PCB Assembly 25+ factories
Injection Molding 42+ factories
Precision CNC Parts 40+ factories
Metal Stamping 18+ factories
Automated Assembly (AOI) 15+ factories
Aluminum Extrusion 12+ factories

Why HCMC Is Dewin's Hub

  • Tan Thuan EPZ (1991): Vietnam's oldest export manufacturing zone
  • Cat Lai Port: Vietnam's busiest container port — shortest export lead time
  • HCMC VCCI: largest office, fastest Form B processing, deep expertise
  • Largest skilled manufacturing workforce in Vietnam
  • Dewin team based here: fastest factory visit response time
  • AOI, 3D CMM, and metrology equipment well-established in zone

📍 Hanoi & Northern Vietnam

Hung Yen · Hai Duong · Bac Ninh · Vinh Phuc · Japanese Manufacturing DNA

Growing Precision CNC Cluster

Key Industrial Parks

  • Thang Long Industrial Park I–IV
    Japanese managed. Est. 1997. Toyota, Canon, Honda suppliers. Deep quality culture.
  • Nomura Hai Phong IP
    Japanese-managed. Precision engineering. High quality standards.
  • VSIP Hai Phong
    Singapore JV. Port of Hai Phong access. Electronics & precision parts.
  • Yen Phong IP (Bac Ninh)
    Samsung complex. Electronics & precision components cluster.

Manufacturing Specialties

Precision CNC Machining 30+ factories
Wire EDM 12+ factories
Automotive Parts (Tier 1/2) 20+ factories
Electronics Assembly 25+ factories
Investment Casting 8+ factories
Stamping & Progressive Die 15+ factories

Why Northern Vietnam Stands Out

  • Thang Long / Nomura: Japanese monozukuri quality culture deeply embedded
  • Growing Wire EDM and 5-axis CNC capability — verified by Dewin audits
  • Hai Phong Port: direct US West Coast / East Coast routing options
  • Lower labor costs vs South Vietnam — competitive on volume orders
  • Samsung ecosystem: precision electronics supply chain infrastructure
  • Hanoi / Vinh Phuc: strong automotive Tier 1 supplier base

50-Point Dolphin Audit — Applied Across All Zones

Regardless of which industrial park or zone a factory is in, every Dewin-audited factory passes the same 50-point Dolphin Audit across 5 pillars.

Dolphin Audit Pillar What We Check Zone-Specific Relevance Points
Pillar 1: Facility & Safety Physical factory compound verified, building age, layout, utilities, safety equipment, 5S organization Validates factory is a genuine manufacturing operation — not a warehouse or shell office 10 pts
Pillar 2: Equipment & Capacity Every major machine photographed and verified operational. Brand, model, condition, capacity vs claimed. CMM, VMM, hardness testers noted. Equipment verification is critical across all zones — VSIP and non-VSIP factories audited identically 10 pts
Pillar 3: Quality Systems ISO certification physically verified (scope, expiry, IAF registrar). NCR system, calibration logs, in-process QC, material certs. Binh Duong/VSIP factories often have stronger ISO systems due to JV investment; Dong Nai heavy industry varies more 10 pts
Pillar 4: Workforce & Management Skilled operators verified on-site, training records, management experience, workforce size vs production capacity claims. Northern zones (Thang Long/Nomura) typically score high due to Japanese quality culture investment 10 pts
Pillar 5: Export Compliance ★ VCCI registration verified. VCCI Form B history reviewed. Chinese input % documented. Anti-circumvention indicators. Multi-FTA CO capability (CPTPP, EVFTA, RCEP, UKVFTA). On-site VCCI offices at VSIP parks assist Form B issuance; Dewin manages FTA CO regardless of zone 10 pts

FTA Advantage — Consistent Across All Vietnam Zones

Vietnam's 16+ free trade agreements apply to Vietnam-origin goods regardless of which industrial zone the factory is in. Dewin manages the FTA Certificate of Origin for each shipment.

CPTPP
Markets Covered

Australia, Canada, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, Brunei, Chile

CO Document

VCCI Form D

Tariff Benefit

0–5% on most manufactured goods

EVFTA
Markets Covered

EU 27 Nations (Germany, France, Netherlands, Italy, Spain, Poland & more)

CO Document

EUR.1 / REX Declaration

Tariff Benefit

0% on most industrial goods after staging

RCEP
Markets Covered

China, Japan, South Korea, Australia, New Zealand, ASEAN 10

CO Document

VCCI Form RCEP-CO

Tariff Benefit

0–5% progressive reduction

UKVFTA
Markets Covered

United Kingdom

CO Document

EUR.1 / REX Declaration (UK equivalent)

Tariff Benefit

0% on most industrial goods

Dewin's on-ground team manages FTA CO documentation for CPTPP, EVFTA, RCEP, and UKVFTA shipments from factories across all Vietnam zones.

Dewin vs Sourcing Without On-Ground Zone Knowledge

What You Need to Know About the Zone With Dewin Alibaba / Online Trade Fair Contact
Which zone the factory is actually in ✅ Verified on-site ⚠️ Listed address only ⚠️ Business card address
Zone infrastructure for export logistics ✅ Assessed in person ❌ Unknown ❌ Unknown
VCCI Form B issuance capability ✅ Pillar 5 verified ❌ Factory's claim only ❌ Factory's claim only
Factory establishment date vs tariff timeline ✅ Documented in audit ❌ Not checked ❌ Not checked
On-site VCCI office vs manual application ✅ Known per factory ❌ Unknown ❌ Unknown
Port access time for export ✅ Assessed in planning ❌ Generic estimate ❌ Generic estimate
Japanese/Korean quality culture in zone ✅ Assessed per factory ❌ Not assessed ❌ Not assessed
Real factory photos from the zone ✅ 1,700+ real photos ⚠️ Marketing photos ❌ None usually

What Global Buyers Say About Dewin's On-Ground Zone Knowledge

🇺🇸

"Dewin knew every industrial park, which VCCI offices were on-site, and which factories were in established zones pre-dating the trade dispute. That level of local knowledge gave us complete confidence in our COO documentation."

Francisco García Quintana
Founder & CEO, LAROME (USA)
🇺🇸

"We visited factories in Binh Duong with Dewin. Seeing the established industrial zones — VSIP, the infrastructure, the equipment — confirmed this was genuine manufacturing, not a sourcing middleman guessing at factory quality."

Greg L. Wilhite
President, DOMS (USA)
🇮🇳

"Dewin's team knew which provinces had better logistics, which zones had VCCI offices, and which factories could handle our EVFTA documentation for our EU shipments. That's knowledge you can only get with a real on-ground presence."

Vishnu Shanker
Director of Operations, Texas Technology

Frequently Asked Questions

Browse Our 179+ Audited Factories Across Vietnam

Every factory physically visited by our on-ground team. Real photos from inside the factory. Dolphin Audit scores across 5 pillars. FTA-compliant COO documentation managed for every shipment.