In global trade, product quality should never rely on hope — it must be verified. At Sourcingate, we perform on-site quality control and inspection across China to ensure every shipment meets your standards before it leaves the factory. Our goal is simple: detect issues early, protect your brand, and make sure what you ordered is exactly what you receive.
Why Quality Control Matters in China Sourcing
Perfect samples don’t guarantee perfect mass production. Without professional inspection, buyers risk defects, material substitutions, incorrect packaging, and shipment delays — all of which can damage margins and brand reputation. Sourcingate prevents these risks with systematic QC and transparent reporting.
Our Multi-Stage Quality Control Process
We tailor inspection stages to your product and timeline, ensuring quality from raw materials to container loading.
1) Pre-Production Inspection (PPI)
Verify raw materials, components, tooling, and pre-production samples against specifications before production begins.
2) During Production Inspection (DUPRO)
When 20–60% of production is complete, we check workmanship consistency, critical dimensions, and process controls. Early detection prevents systemic defects.
3) Pre-Shipment Inspection (PSI)
We inspect finished goods using AQL (ISO 2859) sampling — covering quantity, appearance, function, packaging, labeling, and barcodes. Only conforming lots are approved for shipment.
4) Container Loading Supervision (CLS)
On-site supervision during loading to confirm product, quantity, packaging integrity, container condition, and sealing info — ensuring the right goods ship the right way.
What We Check On-Site
- Product appearance, critical dimensions, and tolerances
- Material and component verification against PO/specs
- Color/finish consistency; surface and functional tests
- Logo/branding accuracy; packaging & labeling compliance
- Drop tests and shipping safety checks
- Quantity count, assortment, and carton integrity
How We Report — Fast, Visual, Actionable
Within 24 hours after inspection, you receive a clear report featuring:
- Factory name/address, inspection date, inspector details
- Sampling size and Pass/Fail decision by AQL
- Defect list with photos/video and severity classification
- Packaging/labeling verification and shipping readiness checklist
- Recommendations: accept, rework, re-inspect, or reject
Why Work with Sourcingate
Buyer-only transparency: we work for you — not for the factory. No factory commissions, no hidden fees.
On-site experts: inspectors across major hubs (Wenzhou, Ningbo, Shenzhen, Guangzhou) conduct in-person checks.
Clear communication: bilingual reports; quick issue escalation; practical corrective-action guidance.
End-to-end assurance: from factory audit and DUPRO to PSI and CLS, we take responsibility for what leaves the factory.
Industries We Serve
Eyewear & optical frames • Packaging & printing • Furniture & fixtures • Home décor & accessories • Fashion & textiles • Beauty & medical supplies
Contact Sourcingate
Sourcingate – Quality Control & Inspection Experts in China
Website: https://sourcingate.com/
Whatsapp: +86 15258090639
Email: mimi@sourcingate.com
On-site checks before goods leave the factory — ensuring every shipment meets your quality expectations.