Documented cases of counterfeit Xingfa profiles, MTC forgery, alloy bait-and-switch, PVDF-vs-PE lies on ACP. Each case includes the red flags that could have caught it before money changed hands.
Thermal Grizzly publicly reported a wave of counterfeits using authentic-looking Chinese-sourced aluminum packaging + fake serial labels. Buyers paid genuine prices for re-filled product.
A 'supplier' (often a trading shell set up 3-6 months prior) solicits inquiries at 10-15% below market, takes a 30% T/T deposit, and disappears. Recovery nearly impossible; SAMR registration turns out to be a paper company with registered capital unpaid.
US CBP UFLPA enforcement expanded 2024 to cover aluminum. Some Chinese mills source primary billet from Xinjiang smelters on the UFLPA Entity List and route through non-Xinjiang re-melters, keeping the shipping paperwork clean but still flagged upstream. Detained at CBP entry.
Buyers receive pre-order samples that test to spec, then bulk production arrives with different alloy composition or temper treatment. Recovery requires third-party XRF testing of sealed production batch before shipment.
ACP (aluminum composite panel) labelled as 3-coat PVDF but is 2-coat PE, fails UV accelerated testing at 2 years vs 15+ for true PVDF. Cost difference $4-6/m² at the factory; multiplied by project m² buyers lose five-figure amounts.
Multiple buyers report receiving MTCs claiming 6082-T6 for shipments that tested as 6061 or off-spec 6063. Forged MTCs often reuse legitimate mill letterheads from photos found online.
Widespread counterfeit Xingfa (兴发) window profiles sold in Vietnam by distributors with no factory link. Xingfa runs an official laser-engraved code system and public verification page — missing or non-verifying code is the primary tell.
Fake ISO 9001 certificates issued by certification bodies that either never existed, were de-accredited, or whose accreditation expired. IQNet / SGS / BV / TÜV public registries catch these — fraudulent suppliers rely on buyers not checking.
Squatters register legitimate Chinese mill brand names on Alibaba International + 1688 before the mill itself does. Buyers searching the brand hit the squatter's listings instead of the real factory. Counterfeit product then ships from a different, unknown source.
Anodic oxide layer thickness 12-15μm delivered when AA20 (≥20μm) is specified and paid-for. Only detectable by eddy-current gauge on the finished product. Common on large MX/AE architectural shipments.
Container arrives with 5-8% less aluminum by weight than packing list. Concealed by stuffing bundles with spacer foam or oversized-pallet strapping. Discovered only on warehouse reweigh.
'Gold Supplier' on Alibaba International only verifies that the supplier paid Alibaba's annual fee + passed basic identity checks. It does NOT verify factory size, certifications, or export history. Repeatedly treated by buyers as proof of quality — it isn't.
Cases help other buyers avoid the same mistake. We verify independently before publishing.
Each case requires at least two of: (a) publicly filed dispute or press coverage, (b) MTC/SGS/spectro evidence submitted by the buyer, (c) customs record corroboration. Anonymous tips without corroboration are not listed. We contact the named seller for comment before publishing where possible.
Yes. Email with: seller name, PO date, HS code, alleged issue, and any MTC/SGS/photo documentation. We will verify independently. False or malicious submissions result in permanent reporter ban.
No. A case signals risk, not a blanket judgment. We publish the specific product, batch, and time — and always link to the seller's response when provided. Many sellers named in a case continue to serve buyers after remediation; some do not.
Suppliers are ranked from public records and our published methodology — we don't sell leads or take pay-to-rank. Confirm prices and certifications directly with the supplier via RFQ.