Certificate of Origin:
Vietnam Factory COO Documentation
A Vietnamese Certificate of Origin unlocks tariff savings across 60+ countries. But COO is only valid if the factory genuinely manufactures in Vietnam. Dewin audits every factory in our 179+ network for real COO eligibility — not just paper credentials.
What a Valid Vietnamese COO Unlocks for Global Buyers
$0 Section 301 tariff (China-specific, does not apply to Vietnam-origin goods)
Key AdvantageEVFTA: 0% tariff on 99% of product lines phased in over 10 years
EVFTAPreferential rates for Canada, Australia, Japan, Mexico, Singapore and 7 others
CPTPPASEAN + China, Japan, South Korea, Australia, NZ — world's largest FTA by GDP
RCEPWhy Factory COO Eligibility Must Be Verified — Not Assumed
Many buyers assume any factory in Vietnam can issue a Vietnamese Certificate of Origin. This is wrong. A valid CO requires genuine substantial transformation — actual manufacturing operations, not just re-labeling, minor assembly, or transshipment of Chinese goods.
Customs authorities worldwide — especially US CBP — are actively investigating circumvention. If your supplier's CO is based on fraudulent or insufficient manufacturing evidence, the COO claim can be revoked, exposing the buyer (as importer of record) to retroactive duties and penalties.
Dewin's Dolphin Audit includes a dedicated COO Eligibility assessment for every factory before any production order is placed. We verify the factory is genuinely manufacturing — not just routing.
What "Genuine Manufacturing" Requires
Dolphin Audit × COO Eligibility
Dewin's 50-point Dolphin Audit has a dedicated COO Compliance pillar. Here's how each audit dimension relates to Certificate of Origin eligibility.
| Dolphin Audit Pillar | COO Relevance | What We Check |
|---|---|---|
| 🏭 Facility & Infrastructure | Proves factory is real and operational in Vietnam | Factory address, production floor area, utility connections, site photos |
| ⚙️ Equipment & Technology | Proves capacity to manufacture — not just handle | Machine inventory, capacity ratings, equipment age & condition, CNC/CMM presence |
| 👷 Workforce & Processes | Proves genuine manufacturing workforce | Headcount by function, shift schedules, operator skills, process documentation |
| 📦 Supply Chain & Materials | Documents input sourcing for COO traceability | Key supplier invoices, material specs, origin of inputs, local content ratio |
| 🎯 Quality & Documentation | VCCI CO application history & compliance records | CO application track record, inspection records, PPAP/FAI documentation, export compliance logs |
CO Form Types Dewin Supports
The correct CO form depends on your destination market. Dewin identifies the right form and manages the VCCI application process.
VCCI Form B
PRIMARY FOR USSection 301 tariff exemption for US-bound goods (Vietnam is not subject to Section 301). Standard origin certification for general markets.
Form CPTPP
Most tariff lines at 0% within FTA phase-in schedule. Significant duties eliminated for manufactured goods.
Form EVFTA
0% tariff on 99% of product lines phased in over 10 years from 2020. Now in advanced phase with most lines at 0%.
Form UKVFTA
Post-Brexit equivalent of EVFTA. Most manufactured goods at 0% within the phase-in schedule.
Form RCEP
World's largest FTA by GDP. Progressive tariff elimination across the region.
Form E
Preferential tariff rates for Vietnam-to-China exports within ACFTA schedules.
Dewin vs Unverified Vietnam Supplier: COO Documentation
| Factor | Dewin Network | Trade Fair / Unverified | Online Marketplace |
|---|---|---|---|
| COO eligibility audit before listing | ✅ Dolphin Audit required | ❌ None | ❌ None |
| Equipment capacity vs export volume check | ✅ On-site verification | ❌ Self-declared | ❌ Self-declared |
| Raw material sourcing documentation | ✅ Reviewed and retained | ❌ Not standard | ❌ Not available |
| VCCI Form B application support | ✅ Managed by Dewin | 🟡 Supplier may assist | ❌ Buyer must arrange |
| COO verification at Pre-Shipment Inspection | ✅ Every shipment | ❌ Not standard | ❌ Not standard |
| FTA form selection by destination market | ✅ Dewin advises correct form | ❌ Buyer responsibility | ❌ Buyer responsibility |
| Anti-circumvention risk assessment | ✅ By HTS category | ❌ None | ❌ None |
| Production records for CBP audit support | ✅ Maintained on file | ❌ Not available | ❌ Not available |
Vietnam's 16+ Free Trade Agreements
Every FTA your goods can access with a valid Vietnamese Certificate of Origin. No other manufacturing hub in Asia offers this FTA coverage.
Vietnam has additional bilateral and sector-specific agreements. List shows major FTAs with COO documentation support from Dewin. Dewin's team identifies the correct form for your specific product and destination market.
Frequently Asked Questions
Does Dewin verify that factories can issue a genuine Vietnamese Certificate of Origin?
Which Certificate of Origin forms does Dewin support for different destination markets?
How does the Dolphin Audit assess a factory's COO eligibility?
What FTA benefits does Vietnam's COO unlock for global buyers?
Source from COO-Verified Vietnam Factories
Every factory in Dewin's 179+ network has been audited for genuine manufacturing eligibility. Request a quote and our team will identify the right factory, right CO form, and right FTA for your destination market.