Factory Audit China

If you are considering a factory audit in China, whether for a new supplier or as part of an annual compliance programme, this guide is written from your side of the table: the importer commissioning the audit, not the firm selling it. It covers what an audit actually checks, how it differs from a product inspection, the five main audit types used in China, what happens on the day, the red flags auditors watch for, and what to do with the report once it lands in your inbox. Where AQF's own factory audit services fit into a step, you will see it mentioned, but the goal of this page is to make you a better-informed buyer, not just a lead.

What Is a Factory Audit, and How Is It Different from an Inspection?

A factory audit is a structured, on-site evaluation of a supplier as a company: its management systems, workforce, capacity, documentation, and ethical practices. A product inspection, by contrast, checks a specific production batch at a specific moment. The two are often confused, sometimes deliberately by providers who want to sell you one when you need the other.

Factory Audit	Product Inspection
Evaluates the supplier as a company	Evaluates a specific production batch
Reviews systems, capacity, ethics, records	Checks conformity of goods to specification
Answers "should we work with this factory"	Answers "does this shipment meet our specification"
Typically once per supplier per year, or on trigger	Repeated per production run (pre-production, during production, pre-shipment, loading)
Result: a report with scores and a corrective action list	Result: a report with defect counts and an AQL verdict
Reference standards: ISO 19011, industry-specific frameworks	Reference standards: AQL sampling under ISO 2859-1

The standard governing how inspection bodies operate, ISO/IEC 17020, often sits with the same firm that also conducts audits, which is part of why the two get blurred. ISO 19011:2018 provides the general guidelines auditors work to when auditing management systems. Most importers need both, at different points in the cycle: an audit before the first purchase order, then pre-shipment inspection on every batch that follows.

When Should You Audit a Chinese Supplier? (Six Trigger Situations)

Six moments justify commissioning an audit. Before placing a first purchase order with a factory you have never worked with. When an existing supplier moves into a new product category and you need to confirm they can actually make it. When a supplier announces a move to a new site, a new building, or a new production line, since your previous audit no longer covers what you have not seen. When a downstream buyer or large retailer requires a compliance certificate before onboarding your product. When defects or delivery problems start repeating and you need to understand where the process is breaking down. And periodically, typically once a year, for any supplier carrying meaningful volume for your business.

The first trigger, before the first purchase order, is the most common and usually the most cost-effective: the cost of an audit is small next to the cost of a defective production run or a supply dispute discovered after the goods have shipped. Amazon sellers ramping SKU counts with a new factory are a common example of this trigger in practice.

The Five Main Types of Factory Audit Used in China

Five audit types cover most of what importers need: an initial factory evaluation to screen a brand new supplier, a quality management system audit against ISO 9001 or an industry derivative, an ethical or social compliance audit against BSCI, SMETA or SA8000, a Good Manufacturing Practice audit for regulated categories, and a technical or process capability audit for complex or high-value products.

Type	When to use	Typical duration	Reference standards
Initial factory evaluation	Before a first order with a new supplier	One day for a small workshop, up to two for a larger site	Basic quality system checks, no single formal standard
Quality management system audit	Confirming a documented, working quality system	Two to three days	ISO 9001, IATF 16949, ISO 13485, AS 9100D
Ethical and social compliance audit	Buyer or retailer requires labour compliance evidence	One to two days	BSCI, SMETA, SA8000
GMP audit	Regulated categories: cosmetics, food, supplements, devices	Two to three days	ISO 22716, 21 CFR Part 111, ISO 13485
Technical and process capability audit	Complex, high-value or new product introductions	Two to three days, often combined with a QMS audit	Process-specific, no single formal standard

Initial Factory Evaluation (Screening a New Supplier)

This is the audit you commission before placing a first purchase order with a factory you have never worked with. It covers the factory's basic profile: legal registration and business licence, ownership, years in operation, whether the building is owned or rented, employee count, and a floor plan of the production areas.

It also checks capacity against claims: line count, machine count, monthly output claimed versus what the observed lines and headcount can plausibly support, and whether the factory discloses any subcontracting. On the quality side it looks for the basics: incoming, in-process and outgoing quality control, reject storage, a corrective action process, calibrated equipment, plus fire exits, first aid, dormitories where present, and electrical safety. Finally, the auditor reviews whatever documentation exists: ISO certificates, previous audit reports, recent quality records.

An initial supplier audit like this typically takes a day for a small workshop and up to two for a larger factory. It pairs well with the vetting steps in AQF's corporate gifts quality control guide and Amazon FBA requirements guide.

Quality Management System Audit (ISO 9001 and Industry-Specific)

This is an in-depth review of the factory's quality management system, checked against ISO 9001:2015 or an industry-specific derivative. ISO 9001 itself is due for a revision, with the next edition expected around September 2026, though the current 2015 requirements remain the reference at the time of writing and a multi-year transition period is expected once the new edition publishes.

The standard's structure covers context, leadership, planning, support, operation, performance evaluation and improvement. An auditor working through it will review the quality manual, documented procedures, internal audit records, management review minutes, corrective actions, calibration records, supplier evaluation records, and how the factory handles non-conforming product and customer feedback. Some sectors use their own derivative: IATF 16949:2016 for automotive suppliers, ISO 13485:2016 for medical devices, AS 9100D for aerospace.

Worth being clear on: a QMS audit run by a quality control firm is not an official ISO 9001 certification audit, which only an accredited certification body can issue. What you get is a report for your own supplier qualification, not a certificate. A full audit at a medium-sized factory typically takes two to three days. For toy or children's product suppliers, see AQF's toy safety testing guide and CPSIA compliance guide for the category-specific expectations alongside a general QMS audit.

Ethical and Social Compliance Audit (BSCI, SMETA, SA8000)

This audit verifies that a factory meets international labour standards, health and safety requirements, and business ethics expectations. Three frameworks dominate, alongside a security-focused programme some US importers add on.

Framework	Owner	Focus	Typically requested by
BSCI Code of Conduct	amfori, a European trade association	Labour, health and safety, environment, ethics	European retailers and brands
SMETA	Sedex, a member platform	Two-pillar (labour, health and safety) or four-pillar (adds environment and ethics)	UK retailers and global brands
SA8000	Social Accountability International, accredited via SAAS	Nine elements including child labour, forced labour, health and safety, freedom of association, working hours and remuneration	Brands requiring formal certification
C-TPAT	US Customs and Border Protection	Supply chain security for US-bound shipments	US importers

SA8000 was substantially revised at the start of 2026, with SA8000:2026 now the current edition; organisations certified under the 2014 edition are working through a multi-year transition. Across all three frameworks, the common ground is similar: no child labour below the local minimum age, no forced labour, capped working hours with a rest day, minimum wage compliance, freedom of association, functioning health and safety controls, and no disciplinary abuse. Some US importers also commission a Customs-Trade Partnership Against Terrorism audit for supply chain security, typically bundled with a full factory audit.

A social compliance audit run by a quality control firm generally uses these frameworks as reference methodology; formal certification is issued only by each scheme's own accredited or affiliated bodies. Announced audits give the factory time to prepare; unannounced ones give a more accurate read on day-to-day practice but need site access agreed in advance. A two-pillar audit typically runs one to two days, a four-pillar or SA8000-mapped audit closer to two. AQF's factory audit services cover this category alongside the others on this page.

Good Manufacturing Practice (GMP) Audit (Cosmetics, Food, Medical Devices)

GMP audits verify that a facility manufacturing a regulated product, cosmetics, food, dietary supplements, medical devices or pharmaceuticals, follows the manufacturing practice standard that applies to that category. The standard itself depends on the industry: ISO 22716 for cosmetics internationally, 21 CFR Part 111 for US dietary supplements, ISO 13485 alongside 21 CFR Part 820 for medical devices, and ICH Q7 or 21 CFR Part 210 and 211 for pharmaceuticals. Cosmetics sold into the US also sit under MoCRA's separate registration and safety substantiation requirements, distinct from the manufacturing practice question a GMP audit addresses.

Across these standards, the common ground is personnel qualification, premises and equipment design, sanitation and water quality, raw material control, production and quality control records, complaints handling, recall procedures, and documentation. A GMP audit against ISO 22716 is a supplier qualification exercise, not a formal certification, which requires an accredited certification body. See AQF's ISO 22716 GMP for cosmetics guide for the full standard; AQF's GMP audit services cover this category in China and Asia. A full GMP audit typically takes two to three days.

Technical and Process Capability Audit

This is a deep-dive audit of the specific production process for a specific product category, run by an auditor with hands-on manufacturing experience in that category rather than a generalist. It suits complex products, electronics, precision hardware, technical apparel, mechanical assemblies, high-value items, and new product introductions where the factory has no track record making that particular item.

What gets audited: the process flow step by step, with critical control points identified; machine capability where measured; tolerance chains and first article inspection; traceability of components and batches; rework procedures; and coordination with third-party lab testing where the product needs it, electronics EMC, cosmetics chemistry, textile flammability. Usually combined with a QMS audit, running two to three days. Children's products and toys often need this depth alongside AQF's CPSIA compliance guide and toy safety testing guide.

Where Chinese Factories Are: A Geographic Overview of Sourcing Hubs

China is not one manufacturing landscape. It is at least five, each with its own industrial specialisation, and knowing which one your supplier sits in tells you a lot before you ever schedule an audit.

Hub	Provinces	Key cities	Specialisation
Pearl River Delta	Guangdong	Shenzhen, Guangzhou, Dongguan, Foshan, Zhongshan, Zhuhai	Electronics, plastic injection, toys, cosmetic packaging, lighting, small appliances, apparel
Yangtze River Delta	Shanghai, Jiangsu, Zhejiang	Shanghai, Suzhou, Ningbo, Hangzhou, Wenzhou, Yiwu	Textile, machinery, hardware, chemistry, small commodities, auto parts
Fujian coastal	Fujian	Xiamen, Quanzhou, Jinjiang, Fuzhou	Footwear, sports goods, ceramics, stone products, paper
Shandong	Shandong	Qingdao, Yantai, Weifang	Industrial equipment, hardware, food processing, tyres, textile
Bohai Rim	Beijing, Tianjin, Hebei	Beijing, Tianjin, Tangshan	Heavy industrial, automotive, steel, chemicals

Inland provinces such as Sichuan and Chongqing host growing automotive and electronics clusters too, though sourcing there tends to add logistics planning that coastal hubs do not require. AQF's local auditors operate across major manufacturing hubs in China and Asia, which in practice means an audit can usually be scheduled without long-distance travel days added to the visit.

What Happens On-Site: The Audit Day, Step by Step

Before the visit, you send the auditor a brief: product category, known quality issues, specific concerns. The auditor confirms a visit date, announced or semi-announced depending on the audit type. On the day, an opening meeting introduces the scope and requests the documents to have ready. A facility tour follows, typically a few hours: production areas, warehouses, dormitories where relevant, the quality lab, waste storage, fire safety, with photos where the factory permits.

Documentation review takes another block: quality records, calibration logs, HR files, maintenance logs, supplier evaluation records, and for an ethical audit, payroll records. Ethical audits add private worker interviews, without management present, on wages, hours, safety and treatment. A closing meeting wraps the visit: preliminary findings, and any issue needing an immediate factory response. After the visit, a written report follows and the corrective action process begins, covered below.

AQF's factory audit services run this process end to end across the hubs described above, with the report scoped to the audit type agreed at the brief stage.

Red Flags Auditors Watch For on the Factory Floor

A handful of signals come up repeatedly on the factory floor, and experienced auditors know that one on its own can often be explained, but two or three together rarely are.

Undisclosed subcontracting is the most common: work happening in a workshop the factory never mentioned, visible through half-finished goods arriving without paperwork or unmarked delivery traffic. Capacity mismatch is another: a factory claiming far higher output than its observed lines and headcount could plausibly support. Missing or forged certifications show up too, worth checking against the issuing body's own registry. Dormitory conditions, where present, can reveal overcrowding, blocked exits, or poor sanitation. An absence of proper quality control records is a red flag in itself: if it was not written down, it likely did not happen consistently. Machinery in poor condition, unclear raw material traceability, and management reluctance to open specific storage or production areas round out the list, and this last one is often the clearest signal of all.

What a Good Factory Audit Report Contains (and How to Use It)

A useful report has a consistent structure: an executive summary with the overall verdict and top issues, a factory profile, the audit scope and criteria used, findings scored section by section, non-conformities classified as major, minor or observation, corrective action recommendations that are specific and time-bound, dated photo evidence tied to findings, and the auditor's identification.

How you use it matters more than the score itself. All majors closed and minors accepted with a commitment to fix them generally means you can proceed to a first order. Specific corrections outstanding usually means you can proceed with conditions, verified at the next inspection stage. Too many majors, or anything structural, is a reason to look elsewhere. A factory scoring lower overall but with every major issue closed is often a safer partner than one scoring higher with a single unresolved major on a critical point.

Post-Audit: Corrective and Preventive Action (CAPA), Re-audit, Approval

Corrective action fixes the issue in front of you; preventive action fixes the root cause so it does not come back, a distinction that lines up with ISO 9001's own clause on improvement. The workflow after an audit typically runs in stages: you classify the findings, send a CAPA request to the factory with a deadline attached to each item, the factory responds with a root cause analysis and a corrective plan, you accept or push back, and then verify: a desktop document review is usually enough for minor issues, while anything major involving a process change warrants a re-audit on site. Once that closes out, the factory can be added to your approved supplier list and the first order can proceed.

This phase is arguably more important than the audit itself. A report with an open CAPA loop is a snapshot, not a resolution. Verifying that corrections actually held often falls to the next stage in the chain, a pre-shipment inspection that checks the corrected process against the batch that is about to ship.

Frequently Asked Questions

What is a factory audit in China?

A factory audit in China is a structured, on-site evaluation of a manufacturer's facility, workforce, documentation and production processes against agreed criteria. It is commissioned by the importer, not the supplier, and carried out by an independent third-party auditor. Unlike a product inspection, which checks the goods, an audit evaluates the company: capacity, quality systems, ethical practices, technical capability, and readiness to produce.

What is the difference between a factory audit and an inspection?

A factory audit evaluates the supplier as a company: management, systems, workforce, capacity, documentation, ethics. It answers whether this factory is worth working with. A product inspection evaluates a specific production batch at a specific moment, pre-production, during production, pre-shipment, or loading, answering whether that shipment meets specification. Most importers need both, at different points in the sourcing cycle.

When should I audit my Chinese supplier?

Six moments justify an audit: before placing a first order with a new factory, when moving to a new product category with an existing supplier, when production transfers to a site the supplier claims to own, when a buyer or retailer requires a compliance certificate before onboarding, when defects or delivery issues repeat, and periodically, typically once a year, for suppliers carrying significant volume.

What are the main types of factory audit in China?

Five main types are used. Initial factory evaluation screens new suppliers. Quality management system audit checks ISO 9001 or industry standards like IATF 16949 for automotive. Ethical or social compliance audit checks labour practices against BSCI, SMETA or SA8000. Good Manufacturing Practice audit applies to cosmetics, food and medical devices. Technical or process capability audit measures production competence for complex products.

How long does a factory audit take in China?

A typical factory audit lasts one to three days on-site depending on scope. An initial factory evaluation for a small workshop can be completed in a day. A full quality management system audit or a combined quality plus ethical audit at a large factory can require two to three days, plus preparation and reporting time. The auditor delivers a written report after the site visit.

What standards do factory auditors follow?

Auditors work to the buyer's specification, but methodology draws on international standards. ISO 19011:2018 provides general guidelines for auditing management systems. ISO/IEC 17020 governs the operation of inspection bodies. ISO 9001 is the reference for quality management, with a revised edition expected in 2026. BSCI, SMETA and SA8000 are the main social compliance frameworks. GMP standards vary by industry, ISO 22716 for cosmetics, 21 CFR Part 111 for dietary supplements.

Can I audit a Chinese factory remotely?

Remote or virtual audits exist and became more common from 2020 onward. They rely on live video walk-throughs, document review, and online interviews. A remote audit can be a useful first screening or a follow-up between physical visits, but it cannot fully replace an on-site audit for a new supplier, an ethical audit, or a full quality management system audit. Physical presence remains the standard for anything decision-critical.

What red flags should an audit uncover?

Common red flags include unannounced subcontracting to a hidden workshop, a gap between claimed and actual production capacity, missing or forged certification documents, dormitory conditions below international labour standards, an absence of proper quality control records, machinery in poor condition, unclear traceability of raw materials, and reluctance from management to allow access to certain areas of the site.

Who conducts factory audits in China?

Three categories of auditors operate in China. Large international testing firms sell audits alongside lab services. Specialist quality control firms with locally based inspectors and auditors, such as AQF, conduct audits as part of an integrated inspection and audit offering. Some importers run their own internal audit teams, though this is generally only cost-effective for very high-volume programmes with a dedicated China presence.

What happens after the audit? Do I get a certificate?

A factory audit does not produce an official certificate. It produces a report that scores the factory against the audit criteria, lists non-conformities, and recommends corrective and preventive actions. The importer then decides: approve the supplier, request corrections before ordering, require a re-audit, or reject the supplier. Certain schemes, BSCI, SMETA, SA8000, ISO 9001, do issue certificates, but only when their own accredited or affiliated bodies conduct the audit.