By SupplierVerify Team | Published: March 10, 2026
Over the past three years, our inspection team has conducted on-site audits at more than 50 factories across Guangdong, Zhejiang, Jiangsu, and Fujian — the manufacturing heartland of China. Our clients were buyers who wanted to confirm that the supplier they found online was the real deal before wiring a deposit. What we found surprised even us: nearly two-thirds of inspected facilities had at least one significant discrepancy between what the supplier claimed online and what existed on the ground. Here's a breakdown of the most common problems, ranked by frequency.
The single most common finding. The supplier's Alibaba profile claimed to be a "manufacturer" with production capacity. The on-site inspection revealed a trading company office — sometimes just a small showroom or a desk in a shared workspace. In several cases, the supplier had arranged a "factory visit" at a facility they didn't own, passing it off as their own production line. One memorable audit: a supplier in Shenzhen claimed to operate a 500-worker electronics assembly plant. The inspector arrived at the registered address and found a co-working space with three desks and no production equipment whatsoever.
How to protect yourself: Always verify the supplier's business scope on their official registration. In China, a company's business license explicitly lists permitted activities. If "manufacturing" (生产/制造) is not in the scope, the company cannot legally produce goods. An on-site visit — or a professional inspection service — confirms whether the production capability matches the registration.
The supplier provided a factory address in communications, but: the address didn't exist, the address belonged to a different company, the building was residential, not industrial, or the address was in a different city than the registered business location. GPS coordinates and Chinese-character addresses are the truth-tellers. Suppliers who provide only English addresses or refuse to share a Chinese-character address are almost always hiding a location discrepancy.
How to protect yourself: Demand the factory address in Chinese characters. Verify it independently against the registered address in the business license. If they don't match, ask why — and verify the explanation.
This was the most frequently observed problem — even at legitimate factories. The production floor had no dedicated QC area. There was no inspection record-keeping. QC staff were either non-existent or were the same workers doing production — meaning the person building the product was also the person checking it. Defect samples were not maintained. Testing equipment was absent or visibly unused. In one electronics factory, the "QC station" was a table in the corner with a single multimeter and a stack of unrelated paperwork.
How to protect yourself: During an on-site visit, ask to see QC inspection records for the most recent completed order. A factory with systematic quality control can produce these immediately. A factory without them cannot — and your order will not be inspected either.
The supplier accepted the order, but production was subcontracted to a different facility — sometimes a smaller, less equipped workshop that the buyer never saw or approved. This was especially common when the order volume exceeded the supplier's actual capacity. The supplier would take the full order, produce 40% in-house, and quietly outsource the remaining 60% to a cheaper workshop. Quality control across the two facilities was inconsistent at best, non-existent at worst.
How to protect yourself: During a factory visit, ask to see the production schedule board. If your order is listed and in progress, that's a positive sign. Ask whether any portion will be subcontracted — and include a clause in your contract requiring written approval for any subcontracting.
Suppliers claimed ISO 9001, CE, or FDA certifications on their Alibaba profile. On inspection: the certification had expired, the certification didn't cover the product category the buyer was ordering, the certification was issued to a different (often related) company, or the certification body wasn't accredited. In one case, a supplier displayed a "CE certificate" that was a self-declaration with no third-party testing behind it — technically legal for some product categories under EU rules, but misleading when presented as independent certification.
How to protect yourself: Ask for the original certificate — not a photo, not a scan, the original document. Verify the issuing body is legitimate. Check that your product category is within the certification's scope. Check the expiration date.
Beyond quality and identity, worker conditions often signal operational instability. Facilities with visibly unhappy workers, high turnover (evidenced by constantly new faces), or safety violations are facilities where production consistency suffers. In one audit, a factory had lost 30% of its workforce in the previous quarter due to wage disputes — and the buyer only discovered this because the inspector spoke to workers during a break. The factory was still taking orders it could not fulfill.
A supplier who lies about being a factory will also lie about production timelines, material quality, and shipping dates. A factory without QC systems will ship you defects — and you won't discover them until the container arrives at your warehouse. A supplier who subcontracts without disclosure has introduced an unknown variable into your supply chain. Each of these findings, on its own, represents a preventable risk. Together, they explain why roughly 60% of audited facilities had at least one finding that should give a buyer pause.
It's not all bad. In 40% of our on-site audits, the factory matched the supplier's claims: the registration was accurate, the production floor was operational, QC systems were in place, and certifications were current. These suppliers are the ones you want to work with — and verification is how you find them. The goal of inspection is not to assume every supplier is fraudulent. It's to separate the 40% you can confidently work with from the 60% that carry some form of undisclosed risk.
Our Reality View on-site inspection sends a trained auditor to the factory address — verifying physical facilities, QC systems, certifications, and operational reality. You receive timestamped photos, a structured report, and a clear assessment. For a complete pre-payment risk picture, combine it with a Safety Shield desktop background check.
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