Verified factories. Real landed costs. Evidence at every step — from the first quote to the container arriving at your warehouse.
The US $800 de minimis exemption was suspended globally on 29 August 2025 and is scheduled for permanent repeal. Every commercial shipment now needs a customs entry, and duties stack on Chinese-origin goods.
A mistake on an order no longer costs you a return. It costs you duty, freight, and broker fees on goods you cannot sell. That is what this service is built around.
Most sourcing agents ask you to trust a brochure. These are the three things you can verify yourself, right now, without talking to me.
A working landed-cost calculator. Enter your FOB price and quantity, see duty, MPF, HMF, broker fees, and your true per-unit cost. No signup.
Open the calculator →A real factory audit report, in full, with the photographs, the dates, and the findings — including what we could not verify.
Read a sample report →Published fees: remote check, on-site audit, inspection — from $149. No quote-by-email, no hidden margin on freight.
See pricing →I check the supplier you have already found. I do not sell you a list of factories — you can get a list anywhere, and a list is not the problem. Knowing whether the one you are about to pay is real, and able to make your product, is the problem.
| Service | What you get | Fee |
|---|---|---|
| Remote supplier check No travel needed |
Licence and registry verification, certificate numbers checked at the issuing body, export records, factory-vs-trader assessment, live video call at the factory gate, and every question the supplier could not answer. 3 business days. | $149 |
| On-site factory audit | Everything above plus a full day at the factory: production line, equipment against claimed capacity, QC process, dated photographs, and the 32-point report — including what could not be verified. | $399 |
| Pre-shipment inspection | AQL 2.5 inspection, defect photographs, count against the acceptance number, pass or hold recommendation. | $199 |
| Order management Only if I run the order |
Sampling, negotiation, production follow-up, consolidation. On orders above $10,000. | 5% |
This service is new. I would rather earn the first case studies than write them, so the first five clients get the remote supplier check at no charge, in exchange for permission to publish the result anonymously — you approve the wording before anything goes up.
And every finding in the report is attached to its evidence. Any finding you cannot trace to a source you can open yourself gets refunded — not the whole fee, the part that failed.
Full detail on the pricing page. What I do not do: hold your deposit, promise customs clearance timelines, or guarantee product performance. Your supplier is never named in another client's report, never introduced to anyone else, and never used for my own purchasing.
Eight steps. Every step leaves a document you keep, whether or not you continue with me.
Sourcing Proof is run by MK Foreign Trade Studio, a small China-based export business. I buy from Chinese factories for my own product lines, and the audit routines on this site are the ones I use on my own orders. They exist because a bad shipment costs me money, not because they were written to be sold.
This is a new service. I do not have 120 completed audits and I am not going to claim them. What I have is capacity, a reason to do your first order properly, and a scope I keep deliberately narrow — if a product category is outside what I already buy in, I decline it and say why.
That is a different trade from hiring an agency that does fifty of these a month. For a first order — the one where a mistake is unaffordable — a small operator who needs the reference is not the worst person to have on your side.
Run the calculator first. If the landed cost kills the idea, you have saved yourself a conversation.
Run a landed-cost estimate