Quality & certificates
Quality control and documentation
For commodity chemicals, quality means the shipment matches the agreed specification — and the paperwork proves it. That is what we control.
Process
From specification to certificate of analysis
1. Specification agreed in writing
Before order, the grade, purity, impurity limits and packing are confirmed in the TDS so there is a single reference for both sides.
2. Batch analysis
The batch is tested against the agreed specification and the results are issued as a certificate of analysis with the shipment.
3. Document control
Invoice, packing list, bill of lading, COA, TDS and SDS are prepared to match the shipment and the destination's requirements.
Certificates
Available on request
- Certificate of analysis (per batch)
- Technical data sheet (TDS)
- Safety data sheet (SDS), GHS 16-section format
- Export licence and registration documents
- Customs registration (报关单位备案) — available on request
- Business licence (营业执照) — available on request
- Management-system and third-party certificates, where held
We do not display certificate scans as marketing material. Ask for what you need and we will provide the current documents for the product you are buying.
We are registered with China Customs as an import/export entity, so shipments are declared in our own name rather than through a third party. The registration certificate and the business licence are available on request.
Handling
Product-specific safety
- Hazard and transport classification taken from the SDS, section 14
- Packing specified to the material and the destination
- Storage and shelf-life guidance issued with the TDS
- Documentation checked against destination requirements before dispatch
Transport classification can affect booking, lead time and cost — for any product whose SDS indicates dangerous goods, we confirm this before quoting.
Buyer questions
What buyers ask about documents
Answers taken from this page. The documents issued for your order are the reference.
- Is a certificate of analysis issued for every batch?
- Yes. The batch is tested against the agreed specification and the results are issued as a certificate of analysis with the shipment.
- Which documents are prepared for a shipment?
- Invoice, packing list, bill of lading, COA, TDS and SDS are prepared to match the shipment and the destination's requirements.
- Do you publish your certificates on the website?
- No. We do not display certificate scans as marketing material. Ask for what you need and we will provide the current documents for the product you are buying.
- Can you send the customs registration and the business licence?
- Yes. We are registered with China Customs as an import/export entity, so shipments are declared in our own name. The registration certificate and the business licence are available on request.
Ask for the certificates
Tell us which product and destination, and we will send the current documents.