Service · Principal supply
Buy from China on one contract and invoice
You contract with and pay Sinospect on one invoice. Sinospect qualifies the manufacturing route, places and manages the Chinese factory order, and keeps the factory's final balance behind the agreed QC or FAT result. Deposits and verified milestones may be paid during production; failed findings block final release until they are corrected, re-verified or resolved under the agreed contract.
- Commercial position
- Principal supplier · one contract, one invoice, one counterparty
- Working languages
- English · French · Mandarin
- Where it runs
- Hong Kong + Ningbo, supplier-side across Chinese industrial clusters
- Payment protection
- Final factory balance released only after the agreed Sinospect QC or FAT gate passes
Quick answers
How the contract, money and quality gate flow
The buyer holds one supply relationship with Sinospect while Sinospect runs the factory relationship. Money moves against the agreed commercial milestones, but the factory's final balance stays behind the quality result.
| Step | Contract and money | Buyer-facing evidence |
|---|---|---|
| 1 · Project file | Buyer sends a specification, BOQ, equipment list or supplier quotation | The starting requirement and any existing offer |
| 2 · Supply proposal | Sinospect defines the counterparty, scope, delivery point, payment schedule and quality gates | A proposal the buyer can review before commitment |
| 3 · Buyer contract | Buyer contracts with and pays Sinospect on one invoice | One named supplier and commercial interface |
| 4 · Factory order | Sinospect contracts and manages the qualified Chinese factory | The specification and inspection plan carried into the factory order |
| 5 · Production milestones | Deposits or verified milestone payments may be released as agreed | Progress and milestone evidence from the order file |
| 6 · QC or FAT gate | The agreed checks pass, or corrective actions are completed and re-verified | Inspection or FAT evidence and the disposition of each finding |
| 7 · Final factory balance | Sinospect releases the factory's final balance only after the agreed quality gate is cleared | A QC-gated release decision rather than a release based on trust |
| 8 · Delivery | Goods and the controlled document pack move to the delivery point stated in the proposal | The supplied order, records and responsibilities agreed for delivery |
How commercial accountability works
In Sinospect’s standard supply model, the buyer contracts with Sinospect as the principal supplier and accountable counterparty. Sinospect manages the factory order, applies the agreed quality gates and keeps the factory’s final balance conditional on Sinospect’s own QC/QA passing. The buyer has one commercial interface for the order.
Where the buyer contracts directly with the manufacturer, Sinospect can instead provide procurement-execution services under a separate scope. Contractual roles, warranty support and remedies are defined by the agreed contract.
What does buying through Sinospect as the supplier include?
The buyer sends an equipment list, specification or existing quotation. Sinospect qualifies the supply route, places the factory orders in its own name, controls quality during production and before shipment, releases the factory's final balance only after its QC passes, and coordinates the order through the delivery point agreed in the supply proposal.
| Stage | What Sinospect does | What the buyer receives |
|---|---|---|
| Sourcing | Identifies candidate manufacturers against the specification and qualifies them before any commitment | A sourcing proposal with qualified suppliers, prices and lead times |
| Procurement | Negotiates and places the factory order in its own name, with the inspection plan written into the contract | One supply contract with Sinospect as counterparty |
| Quality control | Inspects during production and before shipment; the factory's final balance is released only after QC passes | Inspection evidence and a QC-gated release decision |
| Delivery | Coordinates the agreed freight, customs, documentation and site-support scope with the parties best placed to perform each leg | Goods and documents delivered to the agreed point, with responsibilities stated in the proposal |
Already have a supplier or a quotation?
Send it with your specification. Where your supply route is sound, we work with it. Where something needs correcting, we address it with the factory. Where a stronger supply route exists, we explain why and propose it — the decision stays with you. Once the route stands, you can buy through Sinospect on one invoice, with quality controlled before the factory's final balance is released.
We treat your quotation and pricing as confidential and contact the proposed supplier only on your instruction. We acknowledge the request within one business day. When the file is sufficient, our initial written assessment of what can proceed as quoted, what needs correction and where a stronger route is available — or our request for the missing information — follows within two business days.
Who do you contract with?
In the standard model, your contract and invoice are with Sinospect Industrial Company Limited, Hong Kong, with the execution team in Ningbo. Direct manufacturer invoicing, or buyer-direct purchasing with Sinospect managing the China side, can also be agreed when that structure better suits the project. The proposal states the counterparty, Incoterm, delivery point and warranty terms before commitment.
What if the factory cannot correct the goods?
The next step follows the agreed supply contract and the evidence from the order: replacement, rework, rejection, another negotiated remedy, or termination where the contract permits it. Sinospect manages the factory side and presents the documented options; the proposal and contract define the remedy before the buyer commits, rather than inventing one after a failure.
How does QC-gated factory payment protect the buyer?
Sinospect holds the commercial relationship with the factory. Deposits and verified milestone payments may precede final QC, but a failed inspection blocks the final balance until the agreed non-conformities are closed or another remedy is agreed. The buyer retains meaningful commercial leverage through the inspection gate rather than relying on trust in the factory.
What if the proposed supplier does not qualify?
Before Sinospect takes seller responsibility, the proposed supply route must pass qualification. If it does not, we explain the risk, seek a correction where practical or propose a stronger alternative. We discuss those options with you; we do not silently replace your supplier or frame the process as accepting or rejecting your choice.
Who handles freight, customs and delivery to site?
Sinospect remains your single point of contact through the agreed delivery point. Freight, customs and local delivery are coordinated by Sinospect and performed by a forwarder, a broker, your own local team — or by Sinospect where that leg is ours to run. The supply proposal states the delivery point and who does what.
Who handles a warranty claim after delivery?
When Sinospect supplied the order, you bring the claim to Sinospect: we investigate against the agreed specification and the acceptance evidence from the order file, manage the factory, and coordinate the remedy agreed in your contract. Warranty duration, exclusions and remedies are project-specific and stated in the supply proposal.
01 · Scope
Sourcing starts from the project file, not a catalogue
Most engagements start with an equipment list, a bill of quantities or a specification for a build, and the question of who in China can actually manufacture it. Sinospect works that file into a sourceable specification, identifies manufacturers rather than intermediaries, qualifies them before any commitment, and returns a proposal the buyer can compare like for like.
It becomes useful when
- A project needs equipment or materials from China and there is no qualified supply base to buy from.
- The category is known but the supplier landscape is opaque, with trading companies presenting themselves as manufacturers.
- A previous direct purchase went wrong on quality, specification or deposit, and the next order needs control built into the payment structure.
- Several categories for one build are better grouped under a single accountable counterparty than spread across separate factory relationships.
- An importer or project team wants the China-side procurement handled while engineering and site decisions stay in-house.
02 · Verification
Control points from specification to order
Control point
Specification made sourceable
The equipment list, bill of quantities or drawings are turned into a specification a Chinese manufacturer can quote against: standards named, acceptance criteria stated, ambiguities logged and resolved with the buyer.
Control point
Manufacturers identified, not intermediaries
Candidates are drawn from the industrial clusters that actually produce the category. Each candidate's factory, registered scope and production lines are checked so quotes come from manufacturers rather than resellers.
Control point
Qualification before commitment
Legal identity, manufacturing capability, certifications and references are verified before any order is discussed, following the same methodology as the standalone supplier-qualification service.
Control point
Offers compared on equal technical footing
Quotations are normalised against the same specification, scope and Incoterms so the comparison reflects the goods, not the formatting of the quote.
Control point
Contract with the QC gate written in
The factory order carries the inspection-and-test plan and the QC-gated final-balance structure, so quality control is a contractual condition of final payment rather than a courtesy.
03 · Evidence
Evidence behind a sourcing proposal
- Sourcing file
- Sourceable specification with standards, acceptance criteria and a clarification log.
- Candidate long-list with factory locations, registered scope and production evidence.
- Disqualification notes for eliminated candidates, each with the specific finding.
- Qualification evidence
- Business-licence and registry verification for each shortlisted manufacturer.
- Certification checks resolved at the issuing body, with unresolved certificates flagged.
- Factory-visit findings and photographs where the category warrants a visit.
- Commercial package
- Normalised offer comparison across the qualified shortlist.
- Draft supply contract carrying the inspection-and-test plan and the QC-gated final-balance structure.
- Delivery plan covering packing, sea freight and destination documents.
04 · Deliverables
Deliverables issued
Deliverable
For · Buyer and project teamSourcing proposal
Qualified suppliers, normalised prices, lead times and the recommended route, with the evidence behind each candidate attached.
Deliverable
For · Procurement and quality teamsQualified supplier record
The per-manufacturer evidence pack: registry verification, certifications resolved at source, reference checks and factory findings.
Deliverable
For · Buyer and financeQC-gated supply contract
One contract with Sinospect as counterparty, carrying the inspection-and-test plan and a final factory-balance structure gated on QC results.
Deliverable
For · Import and site teamsDelivered order with document pack
Goods shipped with commercial invoice, packing list, certificates and test records that match what was inspected at the factory.
05 · Risks reduced
Risks closed by sourcing through a principal
Risk
The lowest quote comes from a trading company presenting itself as a manufacturer.
How Sinospect closes it
Every candidate's factory, registered scope and production lines are verified before quotes are compared, so intermediaries are identified before they reach the shortlist.
Risk
A deposit is paid and the buyer's leverage disappears for the rest of the order.
How Sinospect closes it
Sinospect contracts the factory and does not release its final balance until Sinospect's own QC passes, so meaningful leverage remains with the inspection gate after deposits and verified milestones.
Risk
The goods drift from the quoted specification during production.
How Sinospect closes it
The inspection-and-test plan is written into the factory contract and checked during production and before shipment, with deviations logged and corrected before release.
Risk
Multiple factory relationships fragment accountability when something fails.
How Sinospect closes it
The buyer holds one contract with one counterparty. Sinospect answers for the goods it supplied and manages the factory side of any claim.
Risk
Certificates supplied with the goods do not resolve at the issuing body.
How Sinospect closes it
Certifications are authenticated at source during qualification and rechecked in the shipment document pack, so what arrives matches what the project requires.
06 · Background resources
Related
- Service · Supplier qualification in ChinaThe qualification gate every sourcing candidate clears before an order is discussed.
- Service · Factory acceptance testing (FAT) in ChinaThe witnessed performance verification behind the QC gate on equipment orders.
- Resource · Execution partner vs sourcing agentHow an accountable principal differs from a commission agent, and when each fits.
- Resource · Payment terms when sourcing from ChinaHow payment structures work on China orders and where the QC gate sits inside them.
07 · Questions
Frequently asked questions
Can Sinospect invoice me directly instead of me paying the factory?
Yes. In the standard supply model, Sinospect is your contractual supplier and invoicing counterparty. You contract with and pay Sinospect; Sinospect places and manages the Chinese factory order. Direct manufacturer invoicing or buyer-direct purchasing can also be agreed when that structure suits the project better.
Who is my contractual supplier?
In the standard supply model, your supplier and invoicing counterparty is Sinospect Industrial Company Limited, Hong Kong. The proposal names the counterparty, delivery point, Incoterm, quality gates, warranty terms and the responsibilities each party accepts before commitment.
When does the Chinese factory receive its final balance?
Deposits and verified production-milestone payments may be released during the order, but the factory's final balance is not released until the agreed Sinospect QC or FAT gate passes. The exact schedule is agreed per order; the final-balance quality gate is the constant.
What happens when QC or FAT fails?
The failed point is recorded, corrective action and re-verification are agreed, and the factory's final balance remains blocked until the agreed non-conformities are closed or another contractually agreed resolution is reached. The buyer sees the evidence and the proposed disposition before release.
Can Sinospect work from a quotation I already have?
Yes. Send the quotation with your specification. Where the route is sound, we work with it; where something needs correcting, we address it with the factory; where a stronger route exists, we explain why and propose it — the decision stays with you. Your quotation and pricing are not shared with any factory, and we contact your existing supplier only on your instruction. We acknowledge the request within one business day. When the file is sufficient, the initial written assessment of what can proceed, what needs correction, or what information is missing follows within two business days.
Can I still buy directly and use Sinospect only for control?
Yes. The buyer can keep the direct factory contract while Sinospect runs supplier qualification, technical review, production monitoring, factory acceptance testing and pre-shipment inspection. In that mode, the buyer keeps the commercial relationship and releases payment against Sinospect's verification evidence.
Where does Sinospect source from?
From manufacturers across Chinese industrial clusters, matched to the category: facility and cleanroom systems, production and process equipment, energy equipment, and technical components. Sinospect was founded in 2004; its operating teams work from Hong Kong and Ningbo for international project buyers, with destination-side coordination defined per project.
08 · Getting started
What to send to start sourcing
Sourcing starts from whatever defines the need. A complete bill of quantities helps; a rough equipment list is enough to open the work.
Equipment list, BOQ or specification
The items the project needs, at whatever level of detail exists today.
Quantities and target budget range
Volumes and the commercial envelope the offers have to fit.
Standards and certification requirements
The norms the goods must meet at destination (CE, ISO, local codes).
Destination and preferred Incoterms
Port or site, and how far into delivery Sinospect should carry the order.
Project timeline
Site or contract dates that set the sourcing and production window.
Partial information is fine. Send what you have; Sinospect confirms what is usable, what is missing and what it changes before any commitment.
Request a supply proposal
Send the equipment list, specification or supplier quotation. Sinospect replies with the proposed counterparty, supply route, quality gates and the next step toward a priced supply proposal.