Factory Certifications That
Actually Mean Something
ISO 9001. IATF 16949. AS9100D. ISO 13485. Unlike sourcing platforms that accept self-reported certs, Dewin's team physically verifies every certification on-site during our 50-point Dolphin Audit — and combines certified quality with $0 Section 301 tariffs on Vietnam-origin goods.
🚨 China Section 301 tariffs: est. 25–145%+ on most manufactured goods | Vietnam: $0 Section 301 (not subject to Trade Act 1974 Section 301) | Calculate your tariff exposure →
The Certification Verification Problem
Most sourcing platforms accept factory-submitted PDFs as "certification proof." A fraudulent or expired ISO certificate is indistinguishable from a real one in an online listing. Dewin's team physically visits every factory before listing — certificates are photographed, issuing body is checked, and scope is verified against actual production activities.
Unverified Platform Listings
- • Factory uploads PDF cert claim
- • Issuing body not checked
- • Cert scope may not cover your process
- • Expired certs often not caught
- • Non-IAF registrars accepted
ISO Cert Alone ≠ Quality
- • ISO 9001 is a process standard
- • Does not guarantee part precision
- • Does not cover equipment condition
- • Does not verify export compliance
- • Audit surveillance gaps are common
Dewin 50-Point Dolphin Audit
- • Physical cert verification on-site
- • IAF-accredited registrar confirmed
- • Scope vs actual process matched
- • QMS in practice (not just on paper)
- • Export compliance (COO/VCCI) verified
Certifications in Our Vietnam Network
Every certification below is physically verified during Dewin's on-site Dolphin Audit. The Dolphin Audit pillar that covers it is listed for each.
ISO 9001:2015
International standard for Quality Management Systems (QMS). Requires documented processes, customer focus, continual improvement, and management commitment.
Why It Matters for US Buyers
Baseline quality assurance that documented processes exist and are followed. Required by most US OEMs as a minimum supplier qualification. Reduces the risk of systemic quality failures.
Pillar 3 — Quality Systems
How Dewin Verifies It
Physical cert photo + issuing body check (IAF-accredited) + QMS documentation review on-site
ISO 9001 cert does not affect tariff classification, but demonstrates process maturity for COO compliance
IATF 16949:2016
Automotive-specific QMS standard (successor to TS 16949). Requires PPAP, FMEA, MSA, SPC, control plans, and APQP. Supersedes ISO 9001 for automotive suppliers.
Why It Matters for US Buyers
Required by GM, Ford, Stellantis, and most Tier 1 automotive OEMs. Ensures part approval processes (PPAP), statistical process control, and failure mode analysis are embedded in production.
Pillar 3 — Quality Systems + Pillar 2 — Equipment & Capacity
How Dewin Verifies It
IATF certificate + PPAP submission samples + control plan documentation on-site
Vietnam automotive parts: $0 Section 301 vs est. 25%+ China Section 301. IATF compliance supports Section 232 exemption arguments for steel/aluminum if applicable.
AS9100D
The global aerospace quality standard (based on ISO 9001 + AS requirements). Adds requirements for risk management, configuration management, AS9102 FAI, and counterfeit parts prevention.
Why It Matters for US Buyers
Required by Boeing, Lockheed Martin, Raytheon, and most defense/aerospace primes. AS9102 First Article Inspection is mandated. Traceability to raw material heat/lot number is required.
Pillar 3 — Quality Systems + Pillar 5 — Export Compliance
How Dewin Verifies It
AS9100D certificate + AS9102 FAI package review + traceability records on-site
Defense/aerospace components: Vietnam $0 Section 301 vs China tariff stack. ITAR notice applies — Dewin screens factories for ITAR-controlled items.
ISO 13485:2016
QMS standard specific to medical devices. Requires design controls, risk management (ISO 14971), device history records, sterile product controls, and post-market surveillance readiness.
Why It Matters for US Buyers
Required for FDA 21 CFR Part 820 alignment and EU MDR compliance. Device component traceability, DHR records, and incoming inspection protocols are audited.
Pillar 3 — Quality Systems + Pillar 1 — Facility & Safety
How Dewin Verifies It
ISO 13485 cert + DHR sample review + cleanroom/controlled area inspection (where applicable)
Medical device components (HTS Ch.90): Vietnam $0 Section 301 vs est. 7.5–25% China tariff. FDA registration status of manufacturer confirmed separately.
ISO 14001:2015
International standard for Environmental Management Systems (EMS). Covers waste reduction, emissions controls, legal compliance, and continual environmental improvement.
Why It Matters for US Buyers
Increasingly required by US Fortune 500 procurement programs with ESG/sustainability commitments. Demonstrates factory compliance with Vietnamese environmental law and international standards.
Pillar 1 — Facility & Safety
How Dewin Verifies It
ISO 14001 cert + environmental register review on-site + waste handling inspection
No direct tariff impact, but required for several US government contractor supply chains
ISO 45001:2018
OHS management system standard (replaced OHSAS 18001). Covers hazard identification, incident reporting, PPE protocols, and worker health protections.
Why It Matters for US Buyers
Required by many US OEM supplier codes of conduct. Dewin's Pillar 1 audit evaluates factory safety conditions regardless of formal ISO 45001 certification.
Pillar 1 — Facility & Safety
How Dewin Verifies It
Cert (if held) + physical safety inspection: PPE availability, fire exits, chemical storage, electrical panel access
Required for some US government supply chains; signals mature factory management culture
Certification Availability by Manufacturing Process
Which certifications can we source in Dewin's Vietnam network for your specific process? This matrix shows general availability — not every factory holds every cert.
| Process | ISO 9001 | IATF 16949 | AS9100D | ISO 13485 | ISO 14001 |
|---|---|---|---|---|---|
| CNC Machining | ✓ | ✓ | ✓ | ✓ | ✓ |
| Die Casting (Aluminum) | ✓ | ✓ | — | — | ✓ |
| Sheet Metal Fabrication | ✓ | ✓ | ✓ | — | ✓ |
| Injection Molding | ✓ | — | — | ✓ | ✓ |
| Investment Casting | ✓ | — | ✓ | — | ✓ |
| Metal Stamping | ✓ | ✓ | — | — | ✓ |
| Forging | ✓ | ✓ | — | — | ✓ |
| Welding & Fabrication | ✓ | ✓ | ✓ | — | ✓ |
✓ = Certification available in Dewin's Vietnam network for this process. Specific factory cert availability confirmed during RFQ matching. Not all factories hold all certs.
The Dolphin Audit — Beyond Paper Certifications
ISO certs are the floor, not the ceiling. Dewin's 50-point Dolphin Audit checks the 5 dimensions that determine whether a factory's quality is real — not just documented.
Facility & Safety
- ✓ISO 14001 / ISO 45001 verification
- ✓Clean and organized workspace
- ✓Fire safety and PPE protocols
- ✓Hazardous material handling
Equipment & Capacity
- ✓Machine model and condition verification
- ✓Maintenance records
- ✓Capacity vs claimed output
- ✓Calibration certificate check
Quality Systems
- ✓ISO 9001 / IATF / AS9100D cert
- ✓IAF-accredited issuing body
- ✓Scope vs actual processes
- ✓SPC / FMEA / control plan docs
Workforce & Management
- ✓QC team structure
- ✓US-compatible communication
- ✓Management system maturity
- ✓Operator training records
Export Compliance
- ✓VCCI Form B capability
- ✓COO documentation trail
- ✓Anti-circumvention procedures
- ✓Section 301 origin eligibility
Certification Verification: Dewin vs Alternatives
| Factor | Dewin | Alibaba / Made-in-China | Trade Fair Sourcing | Xometry |
|---|---|---|---|---|
| Cert verification method | Physical on-site visit + photo documentation | Factory-submitted PDF (unverified) | Booth display only (unverified) | Supplier self-reported |
| IAF-accredited registrar check | ✅ Always verified | ❌ Not checked | ❌ Not checked | ⚠️ Not standard |
| Cert scope vs process match | ✅ Verified on-site | ❌ Not verified | ❌ Not verified | ⚠️ Not standard |
| Expiry date monitoring | ✅ Checked at audit | ❌ Not monitored | ❌ Not monitored | ⚠️ Varies |
| Vietnam $0 Section 301 | ✅ Verified COO documentation | ⚠️ China-based (tariff applies) | ⚠️ China-based typically | ⚠️ Not Vietnam-focused |
| Export compliance (COO/VCCI) | ✅ Pillar 5 Dolphin Audit | ❌ Not covered | ❌ Not covered | ❌ Not covered |
| Certifications available | ISO 9001, IATF 16949, AS9100D, ISO 13485, ISO 14001 | Self-reported — unverified | Self-reported — unverified | Self-reported varies |
Certified Quality + $0 Tariffs = The Dewin Advantage
You don't have to choose between cost savings and quality standards. Vietnam-origin parts can deliver both.
Certified Factories
ISO 9001, IATF 16949, AS9100D, ISO 13485 — all physically verified. Not self-reported.
How we verify certs →30–50% Cost Savings
Vietnam labor differential + elimination of Section 301 tariff burden vs China-sourced equivalents.
Calculate your savings →Export Compliance Built In
VCCI Form B, COO documentation, and anti-circumvention procedures verified under Dolphin Audit Pillar 5.
COO documentation guide →Frequently Asked Questions
Do Dewin's Vietnam factories hold real ISO 9001 certifications? +
Yes. ISO 9001:2015 certification is one of the criteria verified during Dewin's 50-point Dolphin Audit. Our on-ground team physically inspects the certificate (checking issuing body, scope, and expiry) during every factory audit visit. We do not accept self-reported certification claims — the physical certificate and QMS documentation must be present on-site.
Which certifications matter most for US procurement managers sourcing from Vietnam? +
For general industrial parts: ISO 9001:2015 (quality management system). For automotive supply chains: IATF 16949. For aerospace & defense: AS9100D. For medical devices: ISO 13485. For steel/aluminum parts subject to Section 301 tariffs, COO documentation and export compliance capability is equally critical — verified under Pillar 5 of Dewin's Dolphin Audit.
How does Dewin verify factory certifications vs just accepting claimed certs? +
During the Dolphin Audit on-site visit, our team physically photographs the ISO/IATF/AS9100D certificate, checks the issuing body (must be an IAF-accredited registrar), verifies the scope matches the manufacturing activities performed, and checks the expiry date. Certs from non-IAF bodies or with scopes that don't cover the actual processes are flagged as non-conformances.
Can I get Vietnam-made parts that qualify for $0 Section 301 tariffs AND meet IATF 16949? +
Yes. Vietnam is not subject to Section 301 tariffs (China-specific under the Trade Act of 1974). Vietnamese-origin goods that genuinely qualify under the substantial transformation test enter the US at $0 Section 301. Dewin's network includes IATF 16949-capable factories for automotive-grade components, and our Pillar 5 export compliance audit verifies COO documentation, VCCI Form B capability, and anti-circumvention procedures.
What is the difference between a certified factory and a Dewin-audited factory? +
A certified factory holds a third-party ISO/IATF/AS9100D certificate — an important baseline. A Dewin-audited factory has also passed our 50-point Dolphin Audit, which covers facility safety, actual equipment condition, quality systems in practice (not just on paper), workforce capability, and export compliance. Many factories hold certificates but fail our audit on equipment condition, traceability gaps, or COO documentation readiness.
Find a Certified Vietnam Factory for Your Parts
Tell us your process, required certifications, and annual volume. We'll match you with verified, cert-confirmed factories from our 179+ audited network — and show you the landed cost comparison vs your current China source.